Best Lead Intelligence Software

How Many Lead Intelligence Software Products Does G2 Track?

Total Products under this Category: 420

Category Stats (Sep 2026)

  • Average Rating: 4.57/5 The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: LeadsPlease (+2.4%) - Among all products in this category, LeadsPlease recorded the largest rating increase compared to last month

Last updated: September 01, 2026

How Does G2 Rank Lead Intelligence Software Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 76,600+ Authentic Reviews
  • 420+ 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, RocketReach, Waalaxy, and Prospeo.io.

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=rocketreach&focus%5B%5D=waalaxy&focus%5B%5D=prospeo-io&segment=all)

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: 8,912

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: 8.8/10)
  • Lead Enrichment: 8.6/10 (Category avg: 8.7/10)
  • Lead Analysis: 8.5/10 (Category avg: 8.6/10)

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

  • Seller: ZoomInfo
  • Company Website:
  • Year Founded: 2000
  • HQ Location: Vancouver, WA
  • Twitter: @ZoomInfo
    23,515 Twitter followers
  • 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% Large

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

AI-generated summary from verified user reviews

Pros
  • Users value the comprehensive contact information that GTM Workspace provides, aiding effective outreach to potential buyers.
  • Users find the ease of use in GTM Workspace invaluable for streamlining their sales processes and insights.
  • Users value the data accuracy of GTM Workspace, enhancing their competitive edge in prospecting and research.
  • Users find the bulk data download feature invaluable for targeted lead generation, simplifying outreach in the finance sector.
  • Users value the targeted lead generation capabilities of GTM Workspace, significantly boosting their sales and prospecting efficiency.
Cons
  • Users often face challenges with inaccurate data, including unassigned contact numbers and outdated job information.
  • Users often face outdated data in GTM Workspace, leading to inaccuracies in contact details and location information.
  • Users often struggle with outdated contacts, leading them to seek alternative information sources for accuracy.
  • Users experience data inaccuracy, with incorrect contact locations and unassigned numbers complicating their outreach efforts.
  • Users often face outdated information, including incorrect emails and job titles, affecting their reliability and effectiveness.

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: 9,436

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: 8.8/10)
  • Lead Enrichment: 8.9/10 (Category avg: 8.7/10)
  • Lead Analysis: 8.8/10 (Category avg: 8.6/10)

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 value the ease of use of Apollo.io, enhancing their lead generation and CRM integration seamlessly.
  • Users value the user-friendly interface and automation features of Apollo.io, enhancing their lead generation efficiency.
  • Users value the robust search and filtering capabilities of Apollo.io, enhancing their outreach and campaign management efficiency.
  • Users appreciate the streamlined prospecting and outreach capabilities of Apollo.io, enhancing efficiency and targeting in lead generation.
  • Users appreciate the time-saving features of Apollo.io, streamlining their outreach and enhancing sales efficiency.
Cons
  • Users find missing features frustrating, particularly in layout customization, email templates, and integration options.
  • Users indicate that inaccurate data in Apollo.io can lead to frustrations with lead information and missing emails.
  • Users find the steep learning curve of Apollo.io challenging, hindering effective navigation and utilization of its features.
  • Users note limited features and variable accuracy, necessitating manual checks and selective outreach, which can overwhelm new users.
  • Users experience data inaccuracy with Apollo.io, leading to unreliable contact information that requires verification.

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: 5,392

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: 8.8/10)
  • Lead Enrichment: 8.0/10 (Category avg: 8.7/10)
  • Lead Analysis: 7.8/10 (Category avg: 8.6/10)

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

  • Seller: Seamless
  • Company Website:
  • Year Founded: 2015
  • HQ Location: Columbus, Ohio
  • Twitter: @SeamlessAI
    25,330 Twitter followers
  • 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)?

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: 1,347

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: 8.8/10)
  • Lead Enrichment: 8.3/10 (Category avg: 8.7/10)
  • Lead Analysis: 8.0/10 (Category avg: 8.6/10)

Who Is the Company Behind Cognism?

  • Seller: Cognism
  • Company Website:
  • Year Founded: 2015
  • HQ Location: London, England
  • Twitter: @Cognism
    2,331 Twitter followers
  • 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 find Cognism easy to use, facilitating quick access to accurate data and simplifying the fact-checking process.
  • Users appreciate the accuracy of contact information from Cognism, enhancing their prospecting and outreach success.
  • Users praise Cognism for its highly accurate and verified contact data, enhancing outreach success and productivity.
  • Users appreciate the highly accurate and verified contact data from Cognism, boosting outreach success significantly.
  • Users value the high accuracy of Cognism, enhancing their outreach success and boosting workflow efficiency.
Cons
  • Users report inaccurate data causing complications with company names, emails, and contact details, hindering outreach efforts.
  • Users report incorrect numbers from Cognism, affecting their outreach and necessitating improved tracking features for errors.
  • Users experience issues with outdated contacts, leading to difficulties in accessing current and accurate information.
  • Users experience incorrect information with Cognism, particularly regarding company data and mobile numbers, hindering efficiency.
  • Users experience missing information with Cognism, particularly with updates on company names and unavailable contact details.

What Are Recent G2 Reviews of Cognism?

What Are G2 Users Discussing About Cognism?

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: 1,703

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: 8.8/10)
  • Lead Enrichment: 8.6/10 (Category avg: 8.7/10)
  • Lead Analysis: 8.7/10 (Category avg: 8.6/10)

Who Is the Company Behind Nooks?

  • Seller: Nooks
  • Company Website:
  • HQ Location: San Francisco, California
  • Twitter: @JoinNooks
    390 Twitter followers
  • 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, 25% Small

What Do G2 Reviewers Say About Nooks?

AI-generated summary from verified user reviews

Pros
  • Users find that Nooks offers a significant time-saving advantage, enhancing efficiency and streamlining workflows.
  • Users highlight the ease of use of Nooks, praising its beginner-friendly interface and effortless navigation.
  • Users value the efficiency of Nooks, enhancing call volume and productivity while fostering teamwork among remote sales teams.
  • Users value the efficient parallel dialing and seamless collaboration features of Nooks, significantly enhancing productivity and communication.
  • Users highlight the efficient lead generation capabilities of Nooks, enabling numerous successful calls in less time.
Cons
  • Users face call issues with Nooks, including glitches and difficulties managing the call preparation process.
  • Users report dialer issues in Nooks, such as incomplete info transfer and call connectivity problems.
  • Users note the missing features in Nooks, such as limited sorting options and inadequate filtering capabilities.
  • Users find the dialer limitations frustrating, as wrong numbers often go undetected, affecting connect rates.
  • Users experience connection issues with Nooks, often resulting in delays when reaching prospects during calls.

What Are Recent G2 Reviews of Nooks?

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: 1,369

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: 8.8/10)
  • Lead Enrichment: 8.2/10 (Category avg: 8.7/10)
  • Lead Analysis: 7.8/10 (Category avg: 8.6/10)

Who Is the Company Behind RocketReach?

  • Seller: RocketReach
  • Company Website:
  • Year Founded: 2016
  • HQ Location: Brooklyn, NY
  • Twitter: @RocketReachCo
    3,422 Twitter followers
  • 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 praise RocketReach for its accurate and direct contact information, making outreach to job opportunities effortless.
  • Users highlight the ease of use of RocketReach, appreciating its user-friendly interface and quick setup.
  • Users appreciate the high accuracy of RocketReach, finding it reliable for obtaining precise contact information.
  • Users value the accurate and direct information RocketReach provides, which enhances their ability to connect with opportunities.
  • Users appreciate the high accuracy of RocketReach, noting fewer bounced messages and reliable, up-to-date contact details.
Cons
  • Users experience issues with inaccurate data on RocketReach, leading to confusion with outdated contact information.
  • Users are frustrated with the outdated contacts in RocketReach, leading to confusion and inefficiency in data verification.
  • Users find that the outdated data in RocketReach complicates identifying active contacts and their correct information.
  • Users often find the outdated information in RocketReach leads to emails sent to the wrong contacts.
  • Users are frustrated by the missing information in RocketReach, particularly with limited contact details and outdated data.

What Are Recent G2 Reviews of RocketReach?

What Are G2 Users Discussing About RocketReach?

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: 1,574

How Do G2 Users Rate Waalaxy?

  • Has the product been a good partner in doing business?: 8.6/10 (Category avg: 9.3/10)
  • Lead Quality: 8.6/10 (Category avg: 8.8/10)
  • Lead Enrichment: 8.5/10 (Category avg: 8.7/10)
  • Lead Analysis: 7.9/10 (Category avg: 8.6/10)

Who Is the Company Behind Waalaxy?

  • Seller: Waalaxy
  • Company Website:
  • Year Founded: 2019
  • HQ Location: Montpellier, Herault
  • Twitter: @waalaxy
    116 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    40 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Founder, CEO
  • Top Industries: Marketing and Advertising, Information Technology and Services
  • Company Size: 78% Small, 8% Medium

What Do G2 Reviewers Say About Waalaxy?

AI-generated summary from verified user reviews

Pros
  • Users find Waalaxy incredibly easy to use, streamlining LinkedIn prospecting and saving valuable time with automation.
  • Users appreciate the easy setup of Waalaxy, praising its user-friendly interface and intuitive dashboard.
  • Users value Waalaxy for its effortless automation in managing outreach and simplifying multichannel prospecting tasks.
  • Users value the ease of setting up campaigns with Waalaxy, enhancing their LinkedIn prospecting effectiveness.
  • Users appreciate the time-saving automation of Waalaxy, enabling efficient outreach and easier network expansion.
Cons
  • Users feel the pricing of Waalaxy is expensive, especially compared to similar tools with comparable features.
  • Users report that Waalaxy's campaign management can be buggy, causing confusion and requiring excessive adjustments mid-campaign.
  • Users find missing features in Waalaxy, struggling with limitations in the free plan and insufficient campaign customization.
  • Users face a learning curve and limitations with LinkedIn integration in Waalaxy, impacting automation and personalization.
  • Users find plan limitations in Waalaxy restrictive, making it challenging to manage outreach and achieve desired results.

What Are Recent G2 Reviews of Waalaxy?

What Are G2 Users Discussing About Waalaxy?

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: 759

How Do G2 Users Rate Prospeo.io?

  • Has the product been a good partner in doing business?: 9.1/10 (Category avg: 9.3/10)
  • Lead Quality: 9.2/10 (Category avg: 8.8/10)
  • Lead Enrichment: 9.4/10 (Category avg: 8.7/10)
  • Lead Analysis: 9.1/10 (Category avg: 8.6/10)

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: 84% Small, 12% Medium

What Do G2 Reviewers Say About Prospeo.io?

AI-generated summary from verified user reviews

Pros
  • Users highlight the user-friendly tools of Prospeo.io, making lead generation simple and effective for sales teams.
  • Users value the high data accuracy of Prospeo.io, leading to improved outreach and exceptional response rates.
  • Users praise the fast and helpful customer support of Prospeo.io, enhancing their overall experience with the tool.
  • Users praise Prospeo.io for its user-friendly lead generation tools, enhancing sales efficiency and data quality significantly.
  • Users value the seamless LinkedIn integration of Prospeo.io, enhancing prospecting and data accuracy effortlessly.
Cons
  • Users find the service expensive, especially when dealing with numerous enrichments and limited support options.
  • Users experience verification issues with Prospeo.io, struggling to find emails and receiving inadequate support from the team.
  • Users express concerns over inaccuracy, suggesting the product should work alongside multiple providers for better results.
  • Users express frustration over limited credits that do not roll over, wasting resources and limiting lead generation effectiveness.
  • Users find the lack of compatibility with LinkedIn Recruiter limits Prospeo.io's effectiveness for their needs.

What Are Recent G2 Reviews of Prospeo.io?

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: 3,395

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: 8.8/10)
  • Lead Enrichment: 8.6/10 (Category avg: 8.7/10)
  • Lead Analysis: 8.9/10 (Category avg: 8.6/10)

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

  • Seller: ZoomInfo
  • Company Website:
  • Year Founded: 2000
  • HQ Location: Vancouver, WA
  • Twitter: @ZoomInfo
    23,515 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    9,779 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Information Technology and Services, Computer Software
  • 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 reliable B2B contact data of GTM Studio, enhancing targeted prospect lists and campaign efficiency.
  • Users value the accuracy of data and intent signals in GTM Studio, enhancing their lead generation and targeting efforts.
  • Users find GTM Studio's ease of use exceptional, streamlining lead enrichment with straightforward features and intuitive navigation.
  • Users value the reliable and accurate B2B contact data from GTM Studio, enhancing campaign effectiveness and targeting precision.
  • Users value the high-quality data from GTM Studio - Powered by ZoomInfo for efficient, targeted outreach campaigns.
Cons
  • Users find the pricing high, making it less accessible for smaller teams with limited budgets.
  • Users find that data inaccuracy affects reliability, with outdated information and missing data for niche roles.
  • Users note that the pricing is high for small teams, making it less accessible for budget-conscious businesses.
  • Users find the learning curve steep, feeling overwhelmed initially due to the platform's complexity and range of features.
  • Users find the platform's complexity overwhelming initially, requiring training and processes for effective use.

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

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

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: 1,074

How Do G2 Users Rate 6sense Sales Intelligence?

  • Has the product been a good partner in doing business?: 8.6/10 (Category avg: 9.3/10)
  • Lead Quality: 6.8/10 (Category avg: 8.8/10)
  • Lead Enrichment: 6.9/10 (Category avg: 8.7/10)
  • Lead Analysis: 7.2/10 (Category avg: 8.6/10)

Who Is the Company Behind 6sense Sales Intelligence?

  • Seller: 6sense
  • Company Website:
  • Year Founded: 2013
  • HQ Location: San Francisco, CA
  • Twitter: @6senseInc
    16,911 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    1,653 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: 49% Medium, 37% Large

What Do G2 Reviewers Say About 6sense Sales Intelligence?

AI-generated summary from verified user reviews

Pros
  • Users value the accuracy of intent data in 6sense, providing a competitive edge in business development efforts.
  • Users value the effective lead generation capabilities of 6sense, simplifying prospecting and enhancing sales efficiency.
  • Users value the buyer intent insights from 6sense, enhancing their ability to target and engage potential leads effectively.
  • Users value the efficient prospecting capabilities of 6sense, greatly simplifying sales processes and boosting pipeline generation.
  • Users admire the ease of use of 6sense Sales Intelligence, finding it intuitive and efficient for account prioritization.
Cons
  • Users report encountering inaccurate data, leading to issues like bounced emails and unreliable contact information.
  • Users find the data quality unreliable, often resorting to manual prospecting to supplement the information provided by 6sense.
  • Users experience many false positives in lead quality from 6sense Sales Intelligence, leading to ineffective prospecting efforts.
  • Users experience data accuracy issues with 6sense, encountering unreliable information and messy CRM data in reports.
  • Users find the learning difficulty challenging, particularly during implementation and navigating the UI.

What Are Recent G2 Reviews of 6sense Sales Intelligence?

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: 1,966

How Do G2 Users Rate Mr. E by EasyLeadz?

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

Who Is the Company Behind Mr. E by EasyLeadz?

  • Seller: EasyLeadz
  • Year Founded: 2016
  • HQ Location: Delhi, New Delhi
  • Twitter: @easyleadz
    199 Twitter followers
  • 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 find Mr. E by EasyLeadz to be easy to use, with accessible and crisp contact information readily available.
  • Users value the accessible contact information provided by Mr. E, enhancing their ability to connect and close deals.
  • Users admire the impressive accuracy of Mr. E by EasyLeadz, consistently receiving correct information effortlessly.
  • Users love the easy setup of Mr. E by EasyLeadz, appreciating its simplicity and seamless integration into workflows.
  • Users commend Mr. E by EasyLeadz for its easy lead generation capabilities and effectiveness in Indian markets.
Cons
  • Users find the limited credits in Mr. E by EasyLeadz to be a significant constraint on their experience.
  • Users find credit limitations a constraint, making it challenging to fully utilize Mr. E's features.
  • Users find Mr. E by EasyLeadz to be expensive, with concerns over pricing for startups and limited database strength.
  • Users find it frustrating that contact access is limited, hindering their ability to obtain necessary information efficiently.
  • Users wish for an increase in limited free access as the current credits are insufficient and not replenished monthly.

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: 1,607

How Do G2 Users Rate Lusha?

  • Has the product been a good partner in doing business?: 8.5/10 (Category avg: 9.3/10)
  • Lead Quality: 8.1/10 (Category avg: 8.8/10)
  • Lead Enrichment: 8.1/10 (Category avg: 8.7/10)
  • Lead Analysis: 7.9/10 (Category avg: 8.6/10)

Who Is the Company Behind Lusha?

  • Seller: Lusha
  • Company Website:
  • Year Founded: 2016
  • HQ Location: Boston, Massachusetts
  • Twitter: @LushaData
    2,720 Twitter followers
  • 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 value the accurate contact information provided by Lusha, enhancing lead generation and outreach efficiency.
  • Users find Lusha's ease of use and efficient support enhance their prospecting experience significantly.
  • Users value Lusha for its high data accuracy, ensuring quick access to reliable contact information for lead generation.
  • Users praise Lusha for its high accuracy in providing verified contact details, enhancing efficiency in lead generation.
  • Users highly value Lusha for its accurate and verified contact data, enhancing lead generation and outreach efficiency.
Cons
  • Users experience data inaccuracy with Lusha, reporting that contacts and details are sometimes incorrect or missing.
  • Users often face inaccurate data, with around 15-20% of contacts being incorrect or missing key details.
  • Users experience outdated contacts in Lusha, leading to inaccuracies and delayed updates in information.
  • Users experience outdated data, as contact information may be incorrect or take time to update in Lusha.
  • Users experience outdated information with Lusha, noting delays in updates and occasional inaccuracies in contact details.

What Are Recent G2 Reviews of Lusha?

What Are G2 Users Discussing About Lusha?

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: 235

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: 9.2/10 (Category avg: 8.8/10)
  • Lead Enrichment: 9.4/10 (Category avg: 8.7/10)
  • Lead Analysis: 8.0/10 (Category avg: 8.6/10)

Who Is the Company Behind FullEnrich?

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

Who Uses This Product?

  • Who Uses This: CEO, Account Executive
  • 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 praise the ease of use of FullEnrich, highlighting its simple setup and smooth tool integration.
  • Users value the high quality of data provided by FullEnrich, enabling efficient and accurate task management.
  • Users commend FullEnrich for its exceptional accuracy, outpacing competitors and providing reliable data enrichment effortlessly.
  • Users praise the efficiency of contact information retrieval, enabling quick access to high-level decision makers.
  • Users highlight the impressive speed of FullEnrich, enhancing their efficiency and streamlining the lead enrichment process.
Cons
  • Users find FullEnrich to be expensive, particularly for phone numbers compared to other providers, affecting cost-effectiveness.
  • Users find the incorrect numbers to be costly and cumbersome, especially due to poor display options.
  • Users are frustrated by the integration issues with FullEnrich, particularly regarding CRM connections and API limitations.
  • Users experience missing emails occasionally, which can hinder the efficiency of their search for contact information.
  • Users are frustrated by the absence of a native LinkedIn extension, hindering seamless data integration with FullEnrich.

What Are Recent G2 Reviews of FullEnrich?

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: 656

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: 8.8/10)
  • Lead Enrichment: 8.6/10 (Category avg: 8.7/10)
  • Lead Analysis: 8.4/10 (Category avg: 8.6/10)

Who Is the Company Behind Amplemarket?

  • Seller: Amplemarket
  • Year Founded: 2019
  • HQ Location: San Francisco, California
  • Twitter: @amplemarket
    2,568 Twitter followers
  • 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: 44% Small, 44% Medium

What Do G2 Reviewers Say About Amplemarket?

AI-generated summary from verified user reviews

Pros
  • Users love the ease of use of Amplemarket, appreciating its intuitive platform and efficient automation tools for outreach.
  • Users value the ease of use and seamless integrations in Amplemarket, enhancing their sales outreach experience.
  • Users love the efficient automation tools of Amplemarket, dramatically enhancing outreach speed and effectiveness.
  • Users appreciate the ease of use and tailored messaging of Amplemarket, transforming their sales outreach effectively.
  • Users rave about the effective lead generation capabilities of Amplemarket, simplifying outreach and enhancing relationship-building.
Cons
  • Users note missing features in Amplemarket, expressing a desire for enhancements and better sequence management options.
  • Users face a notable learning curve with Amplemarket, needing more support for a smoother onboarding experience.
  • Users report that improvement is needed in integration with other tech stacks and functionality of automation features.
  • Users experience sequence issues with cloning, automation failures, and inactivity settings that complicate workflow efficiency.
  • Users find integration issues with CRM and customization limitations in Amplemarket affect their reporting and workflow efficiency.

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: 4,148

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: 8.8/10)
  • Lead Enrichment: 8.9/10 (Category avg: 8.7/10)
  • Lead Analysis: 9.0/10 (Category avg: 8.6/10)

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 to be very user-friendly, with responsive support and easy setup thanks to tutorial resources.
  • Users find Instantly incredibly easy to use, appreciating its intuitive setup and efficient campaign management features.
  • Users praise Instantly's incredible customer support, noting their quick and precise responses to any inquiries.
  • Users love the effortless cold emailing with Instantly, benefiting from organized campaigns and clear insights.
  • Users value the time-saving features of Instantly, enjoying efficient campaign management and effortless email outreach.
Cons
  • Users find the pricing structure expensive, with key features locked in higher-tier subscriptions that limit basic plan users.
  • Users find the missing features in the basic plan limiting, such as the low lead cap and lack of reply options.
  • Users face significant email management issues with campaign failures, unupdated analytics, and insufficient attachment support.
  • Users report a challenging learning curve with Instantly, finding setup and navigation frustrating and confusing.
  • Users face email issues like campaign failures, integration challenges, and frustrating management of inbox features in Instantly.

What Are Recent G2 Reviews of Instantly?

What Are G2 Users Discussing About Instantly?

Alanna Iwuh
A
Researched and written by Alanna Iwuh
Updated September 23, 2026