Best Lead Intelligence Software

How Many Lead Intelligence Software Products Does G2 Track?

Total Products under this Category: 491

Category Stats (Nov 2026)

  • Average Rating: 4.58/5 (↑0.01 vs Oct 2026) The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: Ocean.io (+33.18%) - Among all products in this category, Ocean.io recorded the largest rating increase compared to last month

Last updated: November 01, 2026

How Does G2 Rank Lead Intelligence Software Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 76,000+ Authentic Reviews
  • 491+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for Lead Intelligence Software

G2 Grid® for Lead Intelligence Software plotting products by satisfaction and market presence

Highlighted products: GTM Workspace - Powered by ZoomInfo, Apollo.io, Seamless (formally Seamless.AI), Cognism, Nooks, Prospeo.io, Waalaxy, and RocketReach.

Underlying data: [Grid® JSON](https://www.g2.com/categories/lead-intelligence/grids.json?focus%5B%5D=gtm-workspace-powered-by-zoominfo&focus%5B%5D=apollo-io&focus%5B%5D=seamless-formally-seamless-ai&focus%5B%5D=cognism&focus%5B%5D=nooks&focus%5B%5D=prospeo-io&focus%5B%5D=waalaxy&focus%5B%5D=rocketreach)

GTM Workspace - Powered by ZoomInfo

ZoomInfo Sales is a software designed to empower sales teams by transforming B2B contact and account data into actionable prospecting insights within a unified platform. The software provides access to over 70 million direct dial phone numbers, 174 million verified email addresses, and 500 million professional profiles by leveraging a continuously verified database and AI-driven analysis of over one billion buying signals per month. It automates account research, follow-up task generation, and outreach drafting and reduces the time sellers spend on manual prospecting by an estimated 10 hours per week. ZoomInfo Sales addresses the challenge of fragmented sales workflows by consolidating prospecting, buyer intent tracking, and CRM-synced alerts into a single platform. The software supports sales development representatives, account executives, and revenue operations teams through integrations with leading CRM systems and a suite of AI agents that recommend next best actions across the sales cycle.

Average Rating: 4.5/5.0

Total Reviews: 8,994

How Do G2 Users Rate GTM Workspace - Powered by ZoomInfo?

  • Has the product been a good partner in doing business?: 8.6/10 (Category avg: 9.3/10)
  • Lead Quality: 8.5/10 (Category avg: 8.9/10)
  • Lead Enrichment: 8.6/10 (Category avg: 8.7/10)
  • Lead Analysis: 8.5/10 (Category avg: 8.7/10)

Who Is the Company Behind GTM Workspace - Powered by ZoomInfo?

  • Seller: ZoomInfo
  • Company Website:
  • Year Founded: 2000
  • HQ Location: Vancouver, WA
  • LinkedIn® Page: www.linkedin.com
    9,779 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Account Executive, Sales Development Representative
  • Top Industries: Computer Software, Information Technology and Services
  • Company Size: 48% Medium, 26% Small

What Do G2 Reviewers Say About GTM Workspace - Powered by ZoomInfo?

AI-generated summary from verified user reviews

Pros
  • Users value accurate business data for finding reliable prospect information.
  • Users find it intuitive and easy to navigate, with accessible tools that are easy to use without specialized expertise.
  • Users save time on prospect research by quickly locating contact information and speeding up prospecting tasks.
  • Users appreciate the easy setup and smooth implementation, which help them get started quickly.
  • Users like how easily they can find relevant decision-makers and contact details, helping them reach the right prospects quickly.
Cons
  • Users find contact and company information outdated, with updates not arriving frequently enough.
  • Users find the pricing high, especially for small teams and businesses, with costs sometimes outweighing the value.
  • Users say contact details are often inaccurate or outdated, especially email addresses and phone numbers.
  • Users find the interface overwhelming and cluttered, with dense features and information making navigation difficult.
  • Users find search filters difficult to use and too limited to reliably narrow results to relevant records.

What Are Recent G2 Reviews of GTM Workspace - Powered by ZoomInfo?

What Are G2 Users Discussing About GTM Workspace - Powered by ZoomInfo?

Apollo.io

Apollo.io is a software designed to help revenue teams find, engage, and manage B2B buyers across the entire sales cycle within a single AI-powered go-to-market platform. The software provides firmographic, technographic, and buyer signal data alongside multi-channel sales engagement sequencing by leveraging an extensive B2B database and intelligent AI agents that assist with account research, lead scoring, and message generation. It automates outbound and inbound prospecting workflows and reduces the number of disconnected tools required to manage pipeline by consolidating data, engagement, and deal tracking in one place. Apollo.io addresses the challenge of fragmented go-to-market execution by combining contact enrichment, CRM-synced records, and agentic AI recommendations so sellers can prioritize and personalize outreach at scale. The software supports sales development representatives, account executives, revenue operations, and marketing teams through integrations with Salesforce and other CRM platforms, making it accessible to B2B organizations of all sizes.

Average Rating: 4.7/5.0

Total Reviews: 9,459

How Do G2 Users Rate Apollo.io?

  • Has the product been a good partner in doing business?: 9.1/10 (Category avg: 9.3/10)
  • Lead Quality: 8.8/10 (Category avg: 8.9/10)
  • Lead Enrichment: 8.9/10 (Category avg: 8.7/10)
  • Lead Analysis: 8.8/10 (Category avg: 8.7/10)

Who Is the Company Behind Apollo.io?

  • Seller: Apollo.io
  • Company Website:
  • Year Founded: 2015
  • HQ Location: San Francisco, CA
  • LinkedIn® Page: www.linkedin.com
    1 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Account Executive, Business Development Manager
  • Top Industries: Information Technology and Services, Computer Software
  • Company Size: 67% Small, 29% Medium

What Do G2 Reviewers Say About Apollo.io?

AI-generated summary from verified user reviews

Pros
  • Users like the intuitive, easy-to-navigate interface because it makes the platform simple to learn and use.
  • Users value the time saved on prospect research, lead sourcing, and outreach, freeing them for customer-focused work.
  • Users like having prospecting, contact data, and outreach together in one platform without juggling separate tools.
  • Users value the detailed prospect filters for precisely targeting and segmenting leads by relevant attributes.
  • Users find setup and onboarding quick and straightforward, helping them get started and begin prospecting with little effort.
Cons
  • Users say contact records can be inaccurate or outdated, including stale job and contact details.
  • Users find the interface cluttered and overwhelming, making it difficult to navigate and locate features.
  • Users find the extensive features and advanced tools overwhelming to learn, with a steep initial learning curve.
  • Users find subscriptions, add-ons, and credits expensive, particularly for individuals and small teams, with costs rising as usage grows.
  • Users report slow loading and lag, especially when working with large lists or datasets.

What Are Recent G2 Reviews of Apollo.io?

What Are G2 Users Discussing About Apollo.io?

Seamless (formally Seamless.AI)

Seamless (formally Seamless.AI) is a software designed to provide real-time B2B contact data including verified emails, cell phone numbers, and sales insights to help teams find and close deals. The software provides access to over 1.7 billion contacts and 150 million company profiles, including buyer intent and job change signals, by leveraging AI to ensure data accuracy across its database. It automates the list-building process and reduces the manual effort required to research and compile prospect information at scale. Seamless (formally Seamless.AI) addresses the challenge of maintaining current and accurate contact data by continuously researching and refreshing records using AI-powered verification. The software supports sales and marketing teams through integrations with CRM and sales engagement platforms including Salesforce, HubSpot, Salesloft, Outreach, and Pipedrive.

Average Rating: 4.4/5.0

Total Reviews: 5,425

How Do G2 Users Rate Seamless (formally Seamless.AI)?

  • Has the product been a good partner in doing business?: 8.5/10 (Category avg: 9.3/10)
  • Lead Quality: 7.9/10 (Category avg: 8.9/10)
  • Lead Enrichment: 8.0/10 (Category avg: 8.7/10)
  • Lead Analysis: 7.8/10 (Category avg: 8.7/10)

Who Is the Company Behind Seamless (formally Seamless.AI)?

  • Seller: Seamless
  • Company Website:
  • Year Founded: 2015
  • HQ Location: Columbus, Ohio
  • LinkedIn® Page: www.linkedin.com
    13 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Account Executive, CEO
  • Top Industries: Information Technology and Services, Computer Software
  • Company Size: 64% Small, 29% Medium

What Do G2 Reviewers Say About Seamless (formally Seamless.AI)?

AI-generated summary from verified user reviews

Pros
  • Users value the extensive contact information provided by Seamless, enabling efficient prospecting and streamlined workflows.
  • Users find Seamless's ease of use exceptional, with quick setup and seamless CRM integration enhancing their experience.
  • Users appreciate the accuracy and speed of Seamless, enhancing lead generation and outreach efforts significantly.
  • Users value the accuracy and speed of Seamless AI, which enhances lead generation and improves outreach efforts significantly.
  • Users value the accuracy and speed of Seamless.AI for generating high-quality, verified leads effortlessly.
Cons
  • Users face issues with inaccurate data on Seamless, particularly with phone numbers and mixed search results.
  • Users often face outdated contacts in Seamless, requiring extra filtering to find reliable information.
  • Users experience outdated information with Seamless, leading to inaccuracies in contact details and prospect data.
  • Users experience data inaccuracy with Seamless, as search results are often inconsistent and less reliable.
  • Users find Seamless to be expensive and wish for a more affordable, personalized package for smaller businesses.

What Are Recent G2 Reviews of Seamless (formally Seamless.AI)?

What Are G2 Users Discussing About Seamless (formally Seamless.AI)?

AI can help you find the answers. G2 helps you trust them.

Connect G2 to Claude or ChatGPT for answers grounded in G2's trusted reviews, comparisons, and pricing from real user insights.

How it works

Cognism

Cognism is a software designed to provide European and global B2B contact data and sales intelligence to help revenue teams discover and engage qualified decision-makers faster. The software provides verified phone numbers, email addresses, and contextual buying signals by leveraging a compliance-focused database with particular strength in EMEA and GDPR-regulated markets. It automates the prospecting research process and reduces the guesswork involved in identifying and reaching the right contacts at target accounts. Cognism addresses the challenge of unreliable or non-compliant B2B data by maintaining a verified, GDPR-compliant contact database that revenue teams can trust for outbound outreach. The software supports sales development representatives and account executives through integrations with CRM platforms including Salesforce and HubSpot, serving businesses of all sizes.

Average Rating: 4.5/5.0

Total Reviews: 1,364

How Do G2 Users Rate Cognism?

  • Has the product been a good partner in doing business?: 9.2/10 (Category avg: 9.3/10)
  • Lead Quality: 8.2/10 (Category avg: 8.9/10)
  • Lead Enrichment: 8.3/10 (Category avg: 8.7/10)
  • Lead Analysis: 8.0/10 (Category avg: 8.7/10)

Who Is the Company Behind Cognism?

  • Seller: Cognism
  • Company Website:
  • Year Founded: 2015
  • HQ Location: London, England
  • LinkedIn® Page: www.linkedin.com
    451 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Account Executive, Sales Development Representative
  • Top Industries: Computer Software, Information Technology and Services
  • Company Size: 50% Medium, 25% Small

What Do G2 Reviewers Say About Cognism?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the ease of use of Cognism, thanks to its intuitive interface and seamless integration features.
  • Users value the accuracy and freshness of contact data, enabling effective outreach and strategic planning.
  • Users commend Cognism for its data accuracy, emphasizing trustworthiness and reliability in B2B intelligence.
  • Users value Cognism for its effective lead generation, providing accurate contact details and a seamless user experience.
  • Users commend the accuracy and freshness of Cognism's contact data, enhancing their B2B intelligence efforts effectively.
Cons
  • Users often face inaccurate data in Cognism, making it difficult to find correct company information and search effectively.
  • Users often face issues with incorrect numbers, making it difficult to find accurate contact information in Cognism.
  • Users express concerns about outdated contacts, noting issues with data accuracy and a need for better workflows.
  • Users report incorrect information in company names and data discrepancies, affecting their experience with Cognism.
  • Users often face missing information in Cognism, particularly with scarce data and unavailable contact details.

What Are Recent G2 Reviews of Cognism?

What Are G2 Users Discussing About Cognism?

FAQs About Lead Intelligence Software

Generated using AI

Last updated: April 27, 2026

What is the best software to track leads for a new online service?

According to verified users, these products are frequently praised for lead capture and follow-up workflows.

  • Apollo.io -- reviewers often use it to find contacts, build prospect lists, and run outreach sequences from one place for faster prospecting.
  • ZoomInfo Sales -- users commonly highlight its company and contact data, intent signals, and list-building features for targeting decision-makers efficiently.
  • Cognism -- reviewers mention using it to find verified contacts, enrich records, and support outbound prospecting with CRM-connected workflows.
  • Amplemarket -- users describe it as useful for combining lead sourcing, sequencing, and multichannel outreach into one workflow.
  • Waalaxy -- reviewers often use it to automate LinkedIn outreach, follow-ups, and campaign management for scalable lead generation.

Which affordable lead generation apps are best for marketing agencies?

According to verified users, these products stand out for accessible prospecting and outreach workflows.

  • RocketReach -- reviewers often value it for quickly finding business emails and phone numbers for outreach and list building.
  • Wiza -- users describe it as an easy way to pull prospect data from LinkedIn and export leads into sales workflows.
  • Lusha -- reviewers frequently mention easy contact discovery, browser-based prospecting, and CRM-friendly workflows for sales teams.
  • UpLead -- users highlight verified email access and targeted list building for B2B outreach without heavy setup.
  • Clearout.io -- reviewers point to email validation and lead discovery features that help reduce bounce risk while building outreach lists.

What is the best lead tracking software with CRM integration?

According to verified users, these products are commonly mentioned for CRM-connected lead workflows.

  • Apollo.io -- reviewers often mention smooth CRM connections, prospect data, and outreach features that help keep lead activity organized.
  • ZoomInfo Sales -- users highlight CRM integrations and account research tools that support prospecting, enrichment, and follow-up.
  • LeadCRM -- reviewers frequently describe syncing LinkedIn contacts into CRM systems and reducing manual lead entry.
  • Surfe -- users mention connecting LinkedIn activity with CRM records to speed up lead capture and keep data updated.

What is lead intelligence software?

Lead intelligence software helps teams identify, qualify, and act on potential buyers using prospect and company information gathered during research and outreach. In recent G2 reviews for this category, users most often describe these tools as helping them find business emails, phone numbers, company details, job titles, and signals that make prospecting more targeted. Reviewers also commonly mention workflow benefits such as list building, CRM syncing, data enrichment, website or intent insight, and automation that reduces manual research. In practice, the category is used to help sales and marketing teams spend less time hunting for contacts and more time prioritizing relevant accounts, reaching decision-makers, and managing follow-up more efficiently.

How do buyers use lead intelligence tools to improve outreach efficiency?

Based on G2 reviews, buyers use lead intelligence tools to reduce manual prospecting work and make outreach more targeted. Reviewers repeatedly mention finding verified emails and phone numbers faster, filtering prospects by role, industry, region, or company size, and pushing records into CRM or sequence tools without rekeying data. Many also highlight LinkedIn extensions and enrichment workflows that help them capture contacts while researching accounts. Across recent reviews, the recurring value is speed: users describe spending less time searching for contact information, avoiding duplicate or incomplete records, and focusing more on conversations, follow-up, and pipeline generation instead of administrative lead research.

Nooks

Nooks is a software designed to help outbound sales teams generate pipeline more efficiently by pairing human judgment with AI execution in a unified agent workspace. The software provides account signals, historical context, and next-best action recommendations alongside multi-channel AI sequencing by leveraging intelligent automation that keeps outreach relevant as teams scale. It automates repetitive research and sequencing tasks and reduces context switching by consolidating prospecting signals, parallel dialing, and outreach management into a single platform. Nooks addresses the inefficiency of legacy outbound tools by enabling sales development representatives to cut research time by up to 90% and more than double email-sourced pipeline. The software supports SDR and sales teams at organizations including HubSpot, Deel, and Rippling through a consolidated platform that replaces multiple vendors with one integrated outbound workflow.

Average Rating: 4.8/5.0

Total Reviews: 1,719

How Do G2 Users Rate Nooks?

  • Has the product been a good partner in doing business?: 9.6/10 (Category avg: 9.3/10)
  • Lead Quality: 8.3/10 (Category avg: 8.9/10)
  • Lead Enrichment: 8.6/10 (Category avg: 8.7/10)
  • Lead Analysis: 8.7/10 (Category avg: 8.7/10)

Who Is the Company Behind Nooks?

  • Seller: Nooks
  • Company Website:
  • HQ Location: San Francisco, California
  • LinkedIn® Page: www.linkedin.com
    425 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: SDR, Business Development Representative
  • Top Industries: Computer Software, Information Technology and Services
  • Company Size: 50% Medium, 26% Small

What Do G2 Reviewers Say About Nooks?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the time-saving features of Nooks, enhancing call activity and team collaboration significantly.
  • Users value the ease of use of Nooks, enabling quick access to essential prospect information and team collaboration.
  • Users value the efficiency of Nooks, enabling seamless dialing and effective pipeline management with ease of use.
  • Users praise the helpful support team and the ease of use of Nooks' features and interface.
  • Users highlight effective lead generation with Nooks, significantly improving call activity and team momentum.
Cons
  • Users experience call issues, such as choppy connections and missing contact details, leading to frustration during use.
  • Users experience dialer issues where not all phone numbers show up, impacting their calling efficiency.
  • Users express frustration over missing features like note integration and insufficient sync with other tools in Nooks.
  • Users report dialer limitations with incomplete number population and reduced pickup rates, affecting their calling experience.
  • Users often experience connection issues, including dropped calls and delays in call connections, affecting communication quality.

What Are Recent G2 Reviews of Nooks?

Prospeo.io

Prospeo is a B2B sales intelligence and data enrichment platform that helps revenue teams find verified contacts, build targeted prospect lists, and push clean data directly into their sales workflows. Unlike legacy providers that charge six-figure contracts for stale data, Prospeo delivers enterprise-grade accuracy at a fraction of the cost — with every email and mobile number verified before delivery. Prospeo serves sales development representatives, account executives, outbound agencies, founders, and revenue operations teams at B2B organizations of all sizes. Teams use Prospeo to build high-quality lead lists, enrich CRM and CSV records in bulk, and eliminate the manual data cleanup that slows down outbound execution. Key capabilities include: Data and targeting: Access to 300M+ verified profiles, 143M verified emails, and 125M+ verified mobile numbers, filtered through 30+ advanced search dimensions including buyer intent, technographics, headcount growth by department, job change tracking, funding stage, and revenue range. Enrichment and data quality: Bulk enrichment of CRM records and CSVs with 50+ verified data points per contact. Prospeo's proprietary 5-step verification process delivers 98% data accuracy, and credits are only charged for verified results — no spend wasted on stale or not-found contacts. Prospecting and list building: Tools to search, filter, and export targeted prospect lists in seconds. A Chrome extension captures verified contact data directly from LinkedIn, company websites, GitHub, and Twitter without leaving the browser. Integrations and API: Native HubSpot and Salesforce integrations, plus connections to Clay, Zapier, and Instantly. A developer-friendly Search and Enrich API delivers clean JSON responses with millisecond latency and 99.99% uptime, making it easy to embed Prospeo into any existing sales stack. Data freshness: The entire database is refreshed on a weekly 7-day cycle — compared to the monthly or quarterly refreshes typical of legacy platforms — ensuring fewer bounced emails, fewer disconnected numbers, and less time spent on outdated records. By combining verified data, real-time enrichment, and direct CRM integration in one platform, Prospeo is designed to eliminate the gap between list building and outbound execution. This helps teams improve deliverability, increase connect rates, and spend more time selling instead of fixing data.

Average Rating: 4.6/5.0

Total Reviews: 1,106

How Do G2 Users Rate Prospeo.io?

  • Has the product been a good partner in doing business?: 9.2/10 (Category avg: 9.3/10)
  • Lead Quality: 9.1/10 (Category avg: 8.9/10)
  • Lead Enrichment: 9.4/10 (Category avg: 8.7/10)
  • Lead Analysis: 9.2/10 (Category avg: 8.7/10)

Who Is the Company Behind Prospeo.io?

  • Seller: Prospeo
  • Company Website:
  • Year Founded: 2019
  • HQ Location: Toronto, CA
  • LinkedIn® Page: www.linkedin.com
    31 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Founder, CEO
  • Top Industries: Marketing and Advertising, Computer Software
  • Company Size: 85% Small, 11% Medium

What Do G2 Reviewers Say About Prospeo.io?

AI-generated summary from verified user reviews

Pros
  • Users love the ease of use of Prospeo.io, making email enrichment and lead generation workflows effortless and efficient.
  • Users commend Prospeo.io's data accuracy, ensuring reliable outreach without the risk of bounces and increased spam.
  • Users value the rapid and helpful customer support from Prospeo.io, enhancing their overall user experience significantly.
  • Users praise Prospeo.io for lead generation, highlighting its efficiency in email enrichment and verification.
  • Users praise the seamless LinkedIn integration of Prospeo.io, simplifying prospecting and enhancing data accuracy significantly.
Cons
  • Users find the pricing of Prospeo.io to be expensive, especially when running large-scale enrichments.
  • Users report verification issues that hinder email outreach efforts and lack adequate support for solutions.
  • Users note the inaccuracy in Prospeo.io, suggesting reliance on multiple providers for better results.
  • Users dislike that credits don’t roll over at the end of each month, leading to potential waste.
  • Users find the lack of LinkedIn Recruiter integration limits Prospeo.io's effectiveness and functionality.

What Are Recent G2 Reviews of Prospeo.io?

Waalaxy

Waalaxy is a software designed to help professionals and organizations identify, contact, and manage relationships with prospects and candidates through LinkedIn and email outreach. The software provides multichannel sequence building that combines LinkedIn connection requests, messages, and email follow-ups by leveraging direct integration with the LinkedIn interface and data enrichment to discover verified professional emails. It automates repetitive outreach tasks and reduces manual effort by enabling users to run structured campaigns across a larger number of contacts without requiring technical expertise. Waalaxy addresses the challenge of organizing and scaling LinkedIn-based prospecting by offering shared lead lists, user permissions, and activity tracking that prevent duplicate outreach and maintain campaign consistency across teams. The software supports founders, sales representatives, and recruiters through integrations with CRM platforms including HubSpot and Pipedrive, as well as automation tools such as Zapier and Make, serving more than 150,000 professionals worldwide.

Average Rating: 4.5/5.0

Total Reviews: 1,720

How Do G2 Users Rate Waalaxy?

  • Has the product been a good partner in doing business?: 8.7/10 (Category avg: 9.3/10)
  • Lead Quality: 8.7/10 (Category avg: 8.9/10)
  • Lead Enrichment: 8.6/10 (Category avg: 8.7/10)
  • Lead Analysis: 7.9/10 (Category avg: 8.7/10)

Who Is the Company Behind Waalaxy?

  • Seller: Waalaxy
  • Year Founded: 2019
  • HQ Location: Montpellier, Herault
  • LinkedIn® Page: www.linkedin.com
    1 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Founder, CEO
  • Top Industries: Marketing and Advertising, Information Technology and Services
  • Company Size: 80% Small, 7% Medium

What Do G2 Reviewers Say About Waalaxy?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the ease of use of Waalaxy, noting quick setup and efficient automation features.
  • Users find the initial setup super easy with Waalaxy, making automation seamless and efficient from the start.
  • Users value the simplicity and efficiency of automation in Waalaxy, enabling quick setup and time savings.
  • Users appreciate the fast and easy LinkedIn integration of Waalaxy, making prospecting and messaging efficient and seamless.
  • Users value the time-saving automation of Waalaxy, allowing for efficient prospecting and campaign management.
Cons
  • Users often highlight the expensive pricing of Waalaxy, which can be a significant drawback for some.
  • Users struggle with campaign lag and sync issues, which complicate the overall campaign management experience in Waalaxy.
  • Users find it frustrating that they cannot send a connection message without LinkedIn Premium, limiting their outreach capabilities.
  • Users feel that the missing features such as lead filtering and mass-adding profiles hinder usability in Waalaxy.
  • Users find the plan limitations frustrating, especially with unclear quotas and restrictions on message sending.

What Are Recent G2 Reviews of Waalaxy?

What Are G2 Users Discussing About Waalaxy?

RocketReach

RocketReach is a software designed to help sales, marketing, and recruiting teams find accurate contact information and build targeted prospect lists through one of the world's largest lead intelligence databases. The software provides continuously verified email addresses, phone numbers, and company data by leveraging automated data quality processes and a broad professional contact database spanning industries including healthcare, technology, and financial services. It automates the workflow of discovering and engaging prospects and reduces the time required to manually source contact details by enabling one-click lookups and the Autopilot automated workflow feature. RocketReach addresses the challenge of reaching the right decision-makers by combining intent data, precise filtering, and accurate contact enrichment so teams can personalize outreach and improve response rates. The software supports sales prospecting, marketing list building, and talent acquisition through integrations with LinkedIn and other platforms, serving small businesses and mid-market organizations.

Average Rating: 4.4/5.0

Total Reviews: 1,371

How Do G2 Users Rate RocketReach?

  • Has the product been a good partner in doing business?: 8.6/10 (Category avg: 9.3/10)
  • Lead Quality: 8.0/10 (Category avg: 8.9/10)
  • Lead Enrichment: 8.2/10 (Category avg: 8.7/10)
  • Lead Analysis: 7.8/10 (Category avg: 8.7/10)

Who Is the Company Behind RocketReach?

  • Seller: RocketReach
  • Company Website:
  • Year Founded: 2016
  • HQ Location: Brooklyn, NY
  • LinkedIn® Page: www.linkedin.com
    95 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Founder, Business Development Manager
  • Top Industries: Marketing and Advertising, Financial Services
  • Company Size: 66% Small, 23% Medium

What Do G2 Reviewers Say About RocketReach?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the wide range of accessible contact information that RocketReach provides, simplifying their search processes.
  • Users value the ease of use of RocketReach, facilitating quick access to accurate employee information and efficient networking.
  • Users commend the high accuracy of RocketReach, especially with valid emails and efficient LinkedIn integration.
  • Users commend the accurate data provided by RocketReach, consistently finding valid emails and comprehensive contact information.
  • Users value the high data accuracy of RocketReach, finding valid emails where other services fall short.
Cons
  • Users experience inaccurate data leading to wasted time on emails and frustration with unverified information.
  • Users find that outdated contacts can result in missing or inaccurate information, affecting communication effectiveness.
  • Users find the outdated data frustrating as it hinders access to accurate contact information.
  • Users face frustration due to outdated information, leading to incorrect role descriptions and missing contact details.
  • Users are disappointed by missing and inaccurate information, leading to wasted time and ineffective outreach efforts.

What Are Recent G2 Reviews of RocketReach?

What Are G2 Users Discussing About RocketReach?

6sense Sales Intelligence

6sense Sales Intelligence is a software designed to help B2B sales teams identify in-market accounts, understand buyer intent, and engage prospects with the right message at the right moment as part of the broader 6sense Revenue AI platform. The software provides enriched contact profiles including verified emails and phone numbers, predictive account scoring, and automated Sales Alerts by leveraging the proprietary 6AI engine that analyzes trillions of daily buyer signals across intent behavior, firmographics, technographics, and engagement patterns. It automates account prioritization and next-action recommendations and reduces time spent on unqualified outreach by surfacing only the accounts most ready to buy based on buying stage and likelihood to convert. 6sense Sales Intelligence addresses the inefficiency of traditional lead-based prospecting by embedding predictive intelligence directly into seller workflows through Sales Copilot, intelligent workflows, and AI-recommended actions. The software supports mid-market and enterprise revenue teams through integrations with leading CRMs, sales engagement platforms, and marketing automation tools, enabling account-centric go-to-market execution across channels.

Average Rating: 4.0/5.0

Total Reviews: 1,144

How Do G2 Users Rate 6sense Sales Intelligence?

  • Has the product been a good partner in doing business?: 8.7/10 (Category avg: 9.3/10)
  • Lead Quality: 6.8/10 (Category avg: 8.9/10)
  • Lead Enrichment: 6.9/10 (Category avg: 8.7/10)
  • Lead Analysis: 7.2/10 (Category avg: 8.7/10)

Who Is the Company Behind 6sense Sales Intelligence?

  • Seller: 6sense
  • Company Website:
  • Year Founded: 2013
  • HQ Location: San Francisco, CA
  • LinkedIn® Page: www.linkedin.com
    1,651 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Account Executive, Sales Development Representative
  • Top Industries: Computer Software, Information Technology and Services
  • Company Size: 48% Medium, 37% Large

What Do G2 Reviewers Say About 6sense Sales Intelligence?

AI-generated summary from verified user reviews

Pros
  • Users value the accurate targeting capabilities of 6sense Sales Intelligence, enhancing their approach and insights in lead generation.
  • Users appreciate the accurate targeting with intent data, enabling focused outreach and better understanding of account journeys.
  • Users value the accurate targeting of 6sense Sales Intelligence, enhancing their ability to engage potential buyers effectively.
  • Users value the effective prospecting capabilities of 6sense, enabling targeted outreach and contact identification for sales efforts.
  • Users appreciate the ease of use of 6sense Sales Intelligence, enabling quick setup and effortless access to insights.
Cons
  • Users find the inaccurate data of 6sense Sales Intelligence concerning, impacting trust in the platform's insights.
  • Users express concerns about data quality in 6sense, noting accuracy issues and the need for better email information.
  • Users experience accuracy issues with 6sense Sales Intelligence, requiring manual verification for contact data and reporting.
  • Users find the learning curve steep with 6sense Sales Intelligence, requiring training to fully leverage its capabilities.
  • Users face issues with lead quality, experiencing invalid leads and inaccurate contact information in 6sense.

What Are Recent G2 Reviews of 6sense Sales Intelligence?

GTM Studio - Powered by ZoomInfo

ZoomInfo Operations is a software designed to help sales and marketing operations teams optimize their go-to-market strategies by automating the cleaning, enriching, and routing of sales and marketing data. The software provides automated deduplication, field standardization, record completion, and intelligent lead routing by leveraging a no-code data management engine integrated with ZoomInfo and over 60 third-party data sources. It automates data hygiene workflows and reduces the manual effort required to maintain accurate CRM and marketing automation records at scale. ZoomInfo Operations addresses the challenge of fragmented and outdated go-to-market data by establishing a unified, enriched data foundation that ensures every lead, account, and opportunity reaches the right sales representative at the right time. The software supports Salesforce administrators and marketing operations managers through seamless integrations with CRM and marketing automation platforms, enabling more precise targeting, faster response times, and improved revenue outcomes.

Average Rating: 4.5/5.0

Total Reviews: 3,397

How Do G2 Users Rate GTM Studio - Powered by ZoomInfo?

  • Has the product been a good partner in doing business?: 9.0/10 (Category avg: 9.3/10)
  • Lead Quality: 9.0/10 (Category avg: 8.9/10)
  • Lead Enrichment: 8.6/10 (Category avg: 8.7/10)
  • Lead Analysis: 8.9/10 (Category avg: 8.7/10)

Who Is the Company Behind GTM Studio - Powered by ZoomInfo?

  • Seller: ZoomInfo
  • Company Website:
  • Year Founded: 2000
  • HQ Location: Vancouver, WA
  • LinkedIn® Page: www.linkedin.com
    9,779 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Account Executive, Customer Success Manager
  • Top Industries: Computer Software, Information Technology and Services
  • Company Size: 63% Medium, 24% Large

What Do G2 Reviewers Say About GTM Studio - Powered by ZoomInfo?

AI-generated summary from verified user reviews

Pros
  • Users value the advanced filtering and segmentation features of GTM Studio, enhancing targeting and campaign effectiveness.
  • Users find the lead enrichment capabilities of GTM Studio invaluable for targeted and effective demand generation campaigns.
  • Users appreciate the ease of use in GTM Studio, highlighting its simple navigation and straightforward setup process.
  • Users value the accuracy of data in GTM Studio, enabling precise targeting and effective demand generation campaigns.
  • Users value the high accuracy of data in GTM Studio, significantly enhancing targeting and campaign effectiveness.
Cons
  • Users feel that the pricing is expensive, especially for small teams, necessitating careful use of credits.
  • Users experience data inaccuracy, with outdated information and the need for manual validation affecting reliability.
  • Users find the cost to be high for small teams, impacting accessibility despite comparable market pricing.
  • Users find the platform to have a steep learning curve, making it complex and overwhelming for new users.
  • Users find the steep learning curve of GTM Studio challenging, particularly impacting new users' ability to navigate the platform.

What Are Recent G2 Reviews of GTM Studio - Powered by ZoomInfo?

What Are G2 Users Discussing About GTM Studio - Powered by ZoomInfo?

FullEnrich

FullEnrich is a software designed to help B2B sales and go-to-market teams find verified business emails and mobile phone numbers for prospects at the highest match rates on the market. The software provides contact enrichment by aggregating 20 or more premium data providers into a single waterfall workflow, so if one source cannot find a prospect another automatically takes over, delivering verified emails and direct dials across the US, EMEA, APAC, and LATAM. It automates the enrichment of CSV lists and CRM records and reduces wasted spend through credit-based pricing that charges only for successful matches. FullEnrich addresses the limitations of single-source enrichment tools by combining the best data each provider can offer into one unified call, consistently outperforming individual tools on match rate and global coverage. The software supports sales teams, RevOps, growth marketers, ABM teams, and recruiters through bulk CSV uploads, a real-time API, and native integrations with HubSpot and other CRM platforms.

Average Rating: 4.8/5.0

Total Reviews: 262

How Do G2 Users Rate FullEnrich?

  • Has the product been a good partner in doing business?: 9.5/10 (Category avg: 9.3/10)
  • Lead Quality: 9.3/10 (Category avg: 8.9/10)
  • Lead Enrichment: 9.4/10 (Category avg: 8.7/10)
  • Lead Analysis: 8.0/10 (Category avg: 8.7/10)

Who Is the Company Behind FullEnrich?

  • Seller: FullEnrich
  • Company Website:
  • Year Founded: 2023
  • HQ Location: San Fransisco, US
  • LinkedIn® Page: www.linkedin.com
    82 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: CEO, Founder
  • Top Industries: Computer Software, Information Technology and Services
  • Company Size: 79% Small, 12% Medium

What Do G2 Reviewers Say About FullEnrich?

AI-generated summary from verified user reviews

Pros
  • Users find FullEnrich to be very easy to use, enhancing their workflow with smooth integrations and quality results.
  • Users appreciate the high data accuracy of FullEnrich, which enhances efficiency and simplifies task management.
  • Users find FullEnrich's contact information retrieval efficient, facilitating smooth communication with high-quality data.
  • Users value the high accuracy of FullEnrich for generating precise lists and valid contact information.
  • Users appreciate the speed and accuracy of FullEnrich, enhancing their efficiency in data extraction and client engagement.
Cons
  • Users are frustrated with incorrect numbers, leading to wasted resources and inefficient outreach efforts with FullEnrich.
  • Users find FullEnrich to be expensive and often feel it does not provide good value for the cost.
  • Users express frustration over the lack of direct integrations with CRM systems in FullEnrich, complicating their workflows.
  • Users experience missing emails and inaccuracies in leads, complicating their search for phone numbers and email addresses.
  • Users report experiencing slow loading times, affecting their ability to efficiently search and retrieve data.

What Are Recent G2 Reviews of FullEnrich?

Mr. E by EasyLeadz

Mr. E by EasyLeadz is a software designed to help sales professionals, recruiters, and marketers find direct B2B mobile contact numbers for prospects with a single click. The software provides direct dial mobile numbers and business profile enrichment by leveraging a high-accuracy contact database and a browser extension compatible with LinkedIn, Zaubacorp, Tofler, Instafinancial, and Crunchbase. It automates the process of finding and verifying direct contact numbers and reduces the time required to manually research and confirm prospect phone details. Mr. E by EasyLeadz addresses the challenge of reaching decision-makers directly by enriching business profiles with accurate direct dials that bypass switchboards and gatekeepers. The software supports over 10,000 sales representatives, recruitment managers, and marketers at organizations ranging from small businesses to enterprises including Amazon, Microsoft, and Salesforce.

Average Rating: 4.6/5.0

Total Reviews: 1,978

How Do G2 Users Rate Mr. E by EasyLeadz?

  • Has the product been a good partner in doing business?: 8.6/10 (Category avg: 9.3/10)
  • Lead Quality: 8.8/10 (Category avg: 8.9/10)
  • Lead Enrichment: 8.6/10 (Category avg: 8.7/10)
  • Lead Analysis: 8.7/10 (Category avg: 8.7/10)

Who Is the Company Behind Mr. E by EasyLeadz?

  • Seller: EasyLeadz
  • Year Founded: 2016
  • HQ Location: Delhi, New Delhi
  • LinkedIn® Page: www.linkedin.com
    33 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Student, Founder
  • Top Industries: Information Technology and Services, Marketing and Advertising
  • Company Size: 60% Small, 26% Medium

What Do G2 Reviewers Say About Mr. E by EasyLeadz?

AI-generated summary from verified user reviews

Pros
  • Users praise the ease of use of Mr. E by EasyLeadz, highlighting its user-friendly interface and simple setup.
  • Users love the easy accessibility of contact information in Mr. E, enhancing their professional networking experience.
  • Users value the accuracy of contact details provided by Mr. E, streamlining their lead generation process effectively.
  • Users love the highly accurate lead generation from Mr. E by EasyLeadz, especially beneficial for startups and recruiters.
  • Users commend the easy setup of Mr. E by EasyLeadz, allowing for a smooth start and seamless connections.
Cons
  • Users find the limited credits for Mr. E by EasyLeadz restrict their ability to explore profiles effectively.
  • Users find the credit limitations of Mr. E restrictive, hindering large-scale prospecting and deeper profile exploration.
  • Users find Mr. E by EasyLeadz quite expensive, feeling the pricing is steep for startups and challenging to manage.
  • Users express dissatisfaction with the limited contacts feature, finding it insufficient for effective marketing efforts.
  • Users express frustration over the limited free access to credits, finding it restrictive and costly for usage.

What Are Recent G2 Reviews of Mr. E by EasyLeadz?

What Are G2 Users Discussing About Mr. E by EasyLeadz?

Lusha

Lusha is a software designed to give sales, marketing, and RevOps teams accurate B2B contact and company data so they can reach decision-makers faster. The software provides direct dials, business emails, and enriched company profiles by leveraging a GDPR-compliant contact database combined with AI-driven automation and live prospect streaming. It automates list building and data enrichment workflows and reduces the time teams spend manually sourcing and verifying contact information across the funnel. Lusha addresses the challenge of reaching qualified decision-makers quickly by delivering verified, compliance-ready contact data that integrates directly into existing revenue workflows. The software supports over 2.6 million users worldwide across sales, marketing, and revenue operations teams with enrichment capabilities spanning the APAC, Middle East, and global markets.

Average Rating: 4.3/5.0

Total Reviews: 1,613

How Do G2 Users Rate Lusha?

  • Has the product been a good partner in doing business?: 8.4/10 (Category avg: 9.3/10)
  • Lead Quality: 8.1/10 (Category avg: 8.9/10)
  • Lead Enrichment: 8.1/10 (Category avg: 8.7/10)
  • Lead Analysis: 7.9/10 (Category avg: 8.7/10)

Who Is the Company Behind Lusha?

  • Seller: Lusha
  • Company Website:
  • Year Founded: 2016
  • HQ Location: Boston, Massachusetts
  • LinkedIn® Page: www.linkedin.com
    354 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Account Executive, Sales Development Representative
  • Top Industries: Information Technology and Services, Computer Software
  • Company Size: 47% Medium, 39% Small

What Do G2 Reviewers Say About Lusha?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the efficient contact information sourcing of Lusha, enhancing their prospecting experience and increasing sales potential.
  • Users enjoy the ease of use offered by Lusha, enhancing their prospecting experience with improved features and streamlined workflow.
  • Users value Lusha for its data accuracy, significantly enhancing their ability to gather reliable contact information.
  • Users highly value Lusha for its accuracy in lead information, streamlining the prospecting process and enhancing sales efficiency.
  • Users highly value Lusha for its accurate data, enabling reliable contact details and efficient prospecting efforts.
Cons
  • Users experience data inaccuracy when targeting niche markets, as Lusha's coverage is primarily focused on larger companies.
  • Users report inaccurate data for niche markets, limiting Lusha's effectiveness in specialized industries or smaller companies.
  • Users find the outdated contacts in Lusha limit outreach efficiency and necessitate reliance on alternative tools.
  • Users often face outdated data issues with Lusha, especially when targeting smaller companies and niche markets.
  • Users frequently encounter outdated information in Lusha, leading to challenges in targeting niche markets effectively.

What Are Recent G2 Reviews of Lusha?

What Are G2 Users Discussing About Lusha?

Amplemarket

By combining premium data, multichannel engagement, and real-time insights in one seamless solution, Duo AI Copilot and AI Agent redefine how modern sales teams operate. Duo uncovers hidden opportunities, detects buyer intent signals, and generates tailored playbooks - empowering your reps to focus on what matters most: building relationships and closing deals. It’s the perfect fusion of AI precision and human intuition. Built on an all-in-one sales platform, Duo AI Agents support your entire outbound workflow - from prospecting and engagement to automation and deliverability. What’s included in the platform: - Global B2B data to help you identify and reach your ideal customers - Multichannel outreach via email, phone, social, voice cloning, and more - Built-in personalization to scale relevant, high-converting messaging - AI superpowers: A suite of personalized AI Agents that handles research, intent signals, and workflows - so you spend less time prepping and more time selling

Average Rating: 4.6/5.0

Total Reviews: 693

How Do G2 Users Rate Amplemarket?

  • Has the product been a good partner in doing business?: 9.3/10 (Category avg: 9.3/10)
  • Lead Quality: 8.7/10 (Category avg: 8.9/10)
  • Lead Enrichment: 8.6/10 (Category avg: 8.7/10)
  • Lead Analysis: 8.4/10 (Category avg: 8.7/10)

Who Is the Company Behind Amplemarket?

  • Seller: Amplemarket
  • Year Founded: 2019
  • HQ Location: San Francisco, California
  • LinkedIn® Page: www.linkedin.com
    1 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: SDR, Account Executive
  • Top Industries: Computer Software, Information Technology and Services
  • Company Size: 45% Medium, 44% Small

What Do G2 Reviewers Say About Amplemarket?

AI-generated summary from verified user reviews

Pros
  • Users find Amplemarket to be extremely user-friendly, offering clarity and ease in organizing outreach efforts.
  • Users appreciate the organized tool of Amplemarket, which offers clarity, structure, and effective outreach capabilities.
  • Users appreciate the organized structure and effective features of Amplemarket, facilitating seamless outreach and lead management.
  • Users love the automation features of Amplemarket, streamlining workflows and saving significant time in outreach efforts.
  • Users benefit from the powerful duo copilot feature of Amplemarket, enhancing engagement and lead generation efficiency.
Cons
  • Users want more missing features, like detailed filtering and better editing options, to enhance their experience.
  • Users find the learning curve of Amplemarket challenging, requiring time and effort to navigate and achieve optimal use.
  • Users find improvement needed in Salesforce integration, data enrichment, and overall feature functionality of Amplemarket.
  • Users experience sequence issues with Amplemarket, finding management and automation of sequences cumbersome and not fully intuitive.
  • Users experience integration issues with Salesforce, affecting account mapping and data enrichment for more strategic targeting.

What Are Recent G2 Reviews of Amplemarket?

What Are G2 Users Discussing About Amplemarket?

Instantly

Instantly is a software designed to turn leads into clients through automated cold email outreach, a built-in B2B lead database, sales engagement tools, and an AI-powered CRM under a single flat-fee subscription. The software provides campaign creation, multi-account email sending, and a deliverability network by leveraging automated warm-up technology and AI to maximize inbox placement and protect sender reputation. It automates the outreach sequence process and reduces the friction of managing multiple sending accounts and tracking lead engagement across campaigns. Instantly addresses the challenge of scaling cold email outreach affordably by consolidating lead finding, campaign management, and CRM functionality into one straightforward platform accessible to solopreneurs and agencies alike. The software supports over 35,000 customers across small businesses and agencies with a simple setup process and responsive customer support focused on cold email performance.

Average Rating: 4.8/5.0

Total Reviews: 4,156

How Do G2 Users Rate Instantly?

  • Has the product been a good partner in doing business?: 9.5/10 (Category avg: 9.3/10)
  • Lead Quality: 9.0/10 (Category avg: 8.9/10)
  • Lead Enrichment: 8.9/10 (Category avg: 8.7/10)
  • Lead Analysis: 9.0/10 (Category avg: 8.7/10)

Who Is the Company Behind Instantly?

  • Seller: Instantly
  • Company Website:
  • Year Founded: 2001
  • HQ Location: Sheridan, US
  • LinkedIn® Page: www.linkedin.com
    378 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Founder, CEO
  • Top Industries: Marketing and Advertising, Computer Software
  • Company Size: 93% Small, 5% Medium

What Do G2 Reviewers Say About Instantly?

AI-generated summary from verified user reviews

Pros
  • Users find Instantly's ease of use invaluable, simplifying inbox management and streamlining email marketing efforts effectively.
  • Users value the seamless setup and outstanding customer support of Instantly, enhancing their email marketing experience significantly.
  • Users find the responsive customer support of Instantly invaluable, offering quick solutions and seamless setup experiences.
  • Users appreciate Instantly for its exceptional email marketing automation, particularly with features that optimize global outreach and efficiency.
  • Users value the time-saving features of Instantly, streamlining email management and enhancing efficiency across campaigns.
Cons
  • Users find the product expensive with high fees and inadequate customer support, providing no results for their investment.
  • Users find the missing features of Instantly limiting, particularly in automation services and domain options.
  • Users find the email management lacking, noting issues with automation, inbox convenience, and transparency.
  • Users find the learning curve challenging, especially during initial setup and understanding the system's complexities.
  • Users face email issues with Instantly, including automation improvements needed and features failing to load properly.

What Are Recent G2 Reviews of Instantly?

What Are G2 Users Discussing About Instantly?

Alanna Iwuh
A
Researched and written by Alanna Iwuh
Updated October 16, 2026

Learn More About Lead Intelligence Software

Lead intelligence software buying insights at a glance

Lead intelligence software helps revenue teams find and qualify the right people faster by combining contact and company data with enrichment and buying signals. These platforms consolidate essential details, including verified emails, direct dials, firmographics, and lead attributes, enabling sales, marketing, and RevOps teams to build targeted lists, enrich CRM records, and prioritize outreach without spending hours on manual research. In practice, lead intelligence tools serve as a bridge between prospecting and execution, enabling teams to transition from “who should we contact?” to “how do we engage them?” more quickly.

As outbound gets more competitive and data decays quickly, lead intelligence platforms have become essential for sales, marketing, and RevOps teams that need accurate contact data, clean targeting, and fast list building. 

Buyers usually adopt lead intelligence tools to solve problems like incomplete CRM records, slow prospecting, and low-quality leads that waste reps’ time. Based on G2 reviews, reviewers rate the products strongly overall, with an average star rating of 4.48/5 and an average likelihood to recommend of 9.01/10. Ease of use trends high (6.49/7), and support is also strong (6.40/7). The biggest buying pattern I see is that teams searching for the best lead intelligence software want two things at once: confidence in data accuracy and workflows that make prospecting faster. That’s why the best lead intelligence software and modern lead intelligence platforms are often evaluated on enrichment quality, filtering, and how cleanly they connect to daily tools. If you’re comparing lead intelligence software options, the “best” pick is usually the one your team will actually use every day, not just the one with the largest database.

Common use cases and how businesses benefit

  1. Prospecting and list building: Find decision-makers faster using filters such as role, industry, and company size.
  2. Contact enrichment: Fill missing emails and phone numbers to increase connect rates.
  3. ICP targeting: Tighten outbound focus by segmenting accounts and contacts more accurately.
  4. CRM hygiene: Enrich and refresh fields to ensure routing, scoring, and reporting are more reliable.
  5. GTM alignment: Give SDRs and marketing a shared, consistent view of lead and account data.

Pricing typically scales by seat count, credits, export limits, enrichment volume, and access to premium data fields. Many vendors offer tiered plans, with higher tiers unlocking deeper enrichment, more exports, and stronger governance. For high-volume teams, total cost is often driven by how frequently they refresh data and how many leads they enrich each month.

Top 5 FAQs from software buyers

  • How accurate, complete, and up to date is the contact and company data, and what verification methods are used to prevent outdated or incorrect records?
  • How well does the platform support ICP targeting, including filters for role, seniority, function, industry, company size, location, and technology stack?
  • How strong are the enrichment and CRM hygiene capabilities, including automated field updates, duplicate prevention, refresh frequency, and governance controls?
  • How well does it integrate with the existing go-to-market stack, including CRM, marketing automation, sales engagement, data warehouses, and routing or scoring systems?
  • How efficiently can a team build lists and take action from the platform, including workflow speed, export limits, credit usage, and the ability to trigger outbound sequences or campaigns directly?

G2’s top-rated Lead Intelligence software, based on this review dataset, includes Cognism, ZoomInfo Sales, Nexuscale Ai, and Mr. E by EasyLeadz.

What are the top-reviewed Lead Intelligence on G2?

Cognism

  • Number of Reviews: 1,200
  • Satisfaction: 83
  • Market Presence: 78 
  • G2 Score: 80

ZoomInfo Sales

  • Number of Reviews: 8,876
  • Satisfaction: 93
  • Market Presence: 99
  • G2 Score: 96

Nexuscale Ai

  • Number of Reviews: 42
  • Satisfaction: 60
  • Market Presence: 13
  • G2 Score: 77

Mr. E by EasyLeadz

  • Number of Reviews: 1,784
  • Satisfaction: 74
  • Market Presence: 46
  • G2 Score: 60

Apollo.io

  • Number of Reviews: 9,232
  • Satisfaction: 99
  • Market Presence: 75
  • G2 Score: 87

Satisfaction reflects user-reported product experience using review-based signals and scoring logic. (Source 2)

Market Presence reflects a product’s footprint and visibility in the market using multiple market signals. (Source 2)

G2 Score is a category score that combines Satisfaction and Market Presence so products can be compared within the same category. (Source 2)

Learn how G2 scores products. (Source 1)

What I Often See in Lead Intelligence

Feedback Pros: What Users Consistently Appreciate

  • Accurate contact enrichment with verified emails and direct dials
  • “What I appreciate most about Seamless.AI is how quickly and easily it provides accurate contact information. Rather than wasting hours scouring the internet, I can get phone numbers, emails, and company details within seconds. The platform also assists in building targeted lead lists, keeps data updated automatically, and integrates seamlessly with tools such as Salesforce and HubSpot. All in all, it saves significant time, enhances sales outreach, and streamlines the prospecting process.” - Sadhwi P. Seamless.AI Reviews
  • Chrome extension enables one click capture from LinkedIn pages
  • “It can connect you with you need to speak with. Not only will it (90% of the time) give you the right phone number and email address to reach your contact but it also helps you find the most appropriate lead for your outreach. It's quick and easy to download and integrates perfectly into your browser (I use Chrome). I love how the plugin pops up on LinkedIn and, not only that, but almost every company page you visit! I use it all the time. It has made my day to day immeasurably better and is so quick and easy to use. I can safely say, the implementation of Cognism at my company has changed everything for the better. And if we have any query, question or concern (the latter being quite rare), Jemima and the team are always approachable and happy to help.” - Solomon P. Cognism Review
  • Filtering by ICP signals speeds list building for outbound
  • “I love how Instantly makes it incredibly easy to find B2B leads, which used to be a significant challenge for me. The enormous database of 450 million data points streamlines my lead generation process, allowing me to simply input keywords and obtain compatible results. This feature is instrumental in efficiently identifying my ideal customer profiles (ICPs), especially on social media, which used to be a cumbersome task. I appreciate that within just five weeks, the ease of finding leads has improved dramatically. Switching to Instantly from other platforms was favorable because of its reliability and user-friendly interface, whereas my previous services encountered frequent crashes. Instantly's simplicity and swift response enhance my workflow substantially. Setting up Instantly was straightforward, without any complications, saving me time and effort. Overall, these aspects make it a valuable tool for my professional needs.” - Shavez K. Instantly Reviews

Cons: Where Many Platforms Fall Short

  • Outdated numbers and emails force frequent manual verification
  • “As with any data platform, there are times when contact accuracy fluctuates or some specialized industries seem less represented. While this isn’t a major issue, my team does sometimes need to verify a record before reaching out. However, ZoomInfo is always evolving, and its overall depth and reliability continue to surpass any other solution we’ve tried.” - Jeff B. Zoominfo Sales Review
  • Credit limits and pricing throttle high volume prospecting
  • “Data accuracy can be inconsistent, some contacts are spot on, while others may be outdated or bounce, so you still need a verification step and good list hygiene. Credits can run out quickly if you are building large lists, and it is not always clear upfront which contacts will be the best quality use of credits. Duplicate records and missing firmographic details can also happen, which adds cleanup work before importing to a CRM. Integrations are helpful, but you may still spend time mapping fields and making sure imports match your CRM rules.” - Mudit K. Seamless.AI Reviews
  • CRM sync and bulk exports can feel unreliable or rigid
  • “The most helpful aspect is the ability to efficiently generate high-quality leads for business development. RocketReach helps us target prospects with verified emails and phone numbers, improving outreach success and reducing bounce rates. Integration with our CRM and other tools makes it seamless to manage leads. Overall, it’s a huge time-saver and boosts the effectiveness of our sales efforts.” - Ayushi K. RocketReach Reviews

Expert Takeaway

Based on G2 reviews, tools in the lead intelligence category consistently perform well on metrics that typically predict real-world adoption: a 4.48/5 average star rating, 9.01/10 likelihood to recommend, 6.49/7 Ease of Use, 6.40/7 Quality of Support, and 6.41/7 Meets Requirements. That profile suggests that teams generally derive value quickly once workflows are established, and they feel supported when issues arise.

Where high-performing teams separate themselves is how they operationalize data quality. The best outcomes occur when teams treat lead intelligence platforms as an ongoing data system, rather than a one-time list source. They set clear rules for what “valid” means (email verification, phone coverage, role matching), refresh contact data on a schedule, and standardize exports into CRM fields so reps trust what they see. I also notice stronger adoption patterns in review-heavy industries, such as Information Technology and Services, Computer Software, and Marketing and Advertising, where outbound speed is crucial and routing errors can be costly.

If you’re deciding whether lead intelligence software is worth it for your team, my biggest advice is to validate three things early: accuracy for your ICP, how fast reps can build lists and enrich contacts using lead intelligence tools, and whether CRM sync stays clean without constant manual cleanup. Teams that do this usually end up with best lead intelligence software that improves connect rates and focus. Teams that skip it often end up with data that “looks right” but does not hold up in daily prospecting.

Lead Intelligence Software FAQs

What is lead intelligence software used for?

Lead intelligence software is used to identify, enrich, and qualify leads with accurate contact and company data. Teams rely on it to find decision makers, verify emails and phone numbers, and prioritize outreach based on firmographic or intent signals. In practice, it reduces manual research and helps sales and marketing focus on higher-quality prospects.

How accurate is lead intelligence data?

Accuracy varies by provider, data source, and target market. Reviews show that data quality is highest when teams regularly refresh records and focus on a defined ICP. Many users note that even the best lead intelligence platforms still require occasional validation, particularly for phone numbers and roles that change rapidly.

How does lead intelligence software integrate with CRM systems?

Most lead intelligence tools integrate directly with CRMs to enrich existing records or automatically populate new leads into predefined fields. The strongest integrations support automatic updates, duplicate prevention, and field mapping. Reviews suggest that clean CRM sync is one of the biggest factors influencing long-term adoption.

Is lead intelligence software better than buying static lead lists?

Yes, most users see better results with lead intelligence platforms than static lists. Instead of one-time exports, lead intelligence tools provide ongoing enrichment, filtering, and updates as data changes. This helps teams avoid outdated contacts and improves connect rates over time.

What should I test before choosing the best lead intelligence software?

Buyers typically test accuracy for their specific ICP, ease of list building, and how quickly reps can find usable contacts. Reviews also recommend validating credit usage, export limits, and CRM sync behavior before committing to the changes. The best lead intelligence software is typically the one that aligns with daily workflows, rather than just the one with the largest database.