Best Lead Intelligence Software - Page 16

How Many Lead Intelligence Software Products Does G2 Track?

Total Products under this Category: 405

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
  • 76,200+ Authentic Reviews
  • 405+ 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, RocketReach, Waalaxy, Nooks, 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=rocketreach&focus%5B%5D=waalaxy&focus%5B%5D=nooks&focus%5B%5D=prospeo-io)

Mails.ai

Mails.ai is transactional email infrastructure for applications and AI agents. Developers integrate a single API to send the application-triggered email their own users are expecting — sign-in and magic links, one-time passcodes, account and security notifications, receipts, and order confirmations — and to capture the replies back as clean, structured data an app or agent can act on. It is built for transactional, permission-based email: messages a recipient asked for or expects. It is not a cold-email, bulk, outreach, or marketing tool — there are no campaigns, contact lists, audiences, or broadcast sending anywhere in the product. What you'll love about Mails.ai: - One simple API: Send and receive email in a few lines of code, and give an AI agent its own working email address in minutes. - Deliverability handled for you: DKIM, SPF, and DMARC are configured and authenticated so your mail lands where it should. - Built-in bounce and complaint handling: Every permanent bounce and complaint is captured and added to a global suppression list enforced on every send. - Reputation protection: Per-workspace rate limits and automatic pausing on adverse signals keep sending clean. - Structured inbound: Incoming replies are parsed into structured data, and every message is checked for security threats before it reaches your agent. Mails.ai is the email layer for software that sends what its users are waiting for — reliable, authenticated, transactional email with per-event pricing and no marketing bloat.

Average Rating: 4.9/5.0

Total Reviews: 5

How Do G2 Users Rate Mails.ai?

  • Lead Quality: 10.0/10 (Category avg: 8.8/10)
  • Lead Enrichment: 10.0/10 (Category avg: 8.7/10)
  • Lead Analysis: 10.0/10 (Category avg: 8.6/10)

Who Is the Company Behind Mails.ai?

Who Uses This Product?

  • Company Size: 80% Small, 20% Medium

What Do G2 Reviewers Say About Mails.ai?

AI-generated summary from verified user reviews

Pros
  • Users love the automated email warmup of Mails.ai, ensuring increased deliverability with minimal effort required on their part.
  • Users find Mails.ai to be incredibly easy to use, benefiting from automated features and seamless management.
  • Users praise Mails.ai for being affordable, offering great value with comprehensive features for cold emailing.
  • Users love the automation features of Mails.ai, as they simplify email campaigns and enhance deliverability effortlessly.
  • Users appreciate the effective automation of Mails.ai, simplifying email outreach and enhancing deliverability with ease.
Cons
  • Users find the setup process time-consuming, wishing for a more user-friendly and quicker configuration of Mails.ai.
  • Users find the setup process too complex, requiring more time and effort to become fully operational with Mails.ai.
  • Users find the difficult navigation of Mails.ai frustrating, wishing for a more visually appealing and simpler design.
  • Users find the setup process time-consuming, making initial use of Mails.ai less user-friendly and efficient.
  • Users find the setup process time-consuming, making it less user-friendly and delaying full feature utilization.

What Are Recent G2 Reviews of Mails.ai?

PeopleSmart

PeopleSmart is a prospecting tool that helps you find targeted leads for your business. Their business contact search engine enables you to search hundreds of millions of professional profiles based on your needs, and retrieve emails and phone numbers for key decision makers.

Average Rating: 0.5/5.0

Total Reviews: 1

How Do G2 Users Rate PeopleSmart?

  • Has the product been a good partner in doing business?: 6.7/10 (Category avg: 9.3/10)
  • Lead Quality: 5.0/10 (Category avg: 8.8/10)
  • Lead Enrichment: 3.3/10 (Category avg: 8.7/10)
  • Lead Analysis: 5.0/10 (Category avg: 8.6/10)

Who Is the Company Behind PeopleSmart?

Who Uses This Product?

  • Company Size: 100% Small

Plotbook

Plotbook is a geospatial wealth intelligence platform that helps financial advisors, wealth managers, and sales professionals find and connect with high-net-worth property owners using interactive map-based prospecting.

Average Rating: 5.0/5.0

Total Reviews: 1

How Do G2 Users Rate Plotbook?

  • Lead Quality: 10.0/10 (Category avg: 8.8/10)
  • Lead Enrichment: 10.0/10 (Category avg: 8.7/10)
  • Lead Analysis: 8.3/10 (Category avg: 8.6/10)

Who Is the Company Behind Plotbook?

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Plotbook?

Prospectful.ai

Welcome to Prospectful.ai, the future of B2B Lead Generation and AI Sales Automation. Are you tired of the traditional complexities that come with sales? We've revolutionised the game. Our cutting-edge service empowers businesses to streamline their Cold Outreach processes, delivering unparalleled efficiency and effectiveness. Embrace the power of automated intelligence to supercharge your sales efforts. Dive in and discover how Prospectful.ai is transforming the landscape of B2B Lead Generation, AI Sales Automation, and Cold Outreach.

Average Rating: 5.0/5.0

Total Reviews: 1

How Do G2 Users Rate Prospectful.ai?

  • Lead Quality: 10.0/10 (Category avg: 8.8/10)
  • Lead Enrichment: 10.0/10 (Category avg: 8.7/10)
  • Lead Analysis: 8.3/10 (Category avg: 8.6/10)

Who Is the Company Behind Prospectful.ai?

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Prospectful.ai?

RealtimeCRM

RealtimeCRM saves you hours in research and data entry. We'll find the information you need automatically.

Average Rating: 4.0/5.0

Total Reviews: 1

How Do G2 Users Rate RealtimeCRM?

  • Has the product been a good partner in doing business?: 6.7/10 (Category avg: 9.3/10)
  • Lead Quality: 8.3/10 (Category avg: 8.8/10)
  • Lead Enrichment: 8.3/10 (Category avg: 8.7/10)
  • Lead Analysis: 8.3/10 (Category avg: 8.6/10)

Who Is the Company Behind RealtimeCRM?

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of RealtimeCRM?

Salesfully

B2B Marketing Software

Average Rating: 2.5/5.0

Total Reviews: 1

Who Is the Company Behind Salesfully?

Who Uses This Product?

  • Company Size: 100% Medium

What Are G2 Users Discussing About Salesfully?

Salesfully.com

Salesfully assembles the essential tools needed to find new customers and manage existing ones all in one online tool.

Average Rating: 5.0/5.0

Total Reviews: 1

How Do G2 Users Rate Salesfully.com?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 9.3/10)

Who Is the Company Behind Salesfully.com?

  • Seller: Salesfully.com
  • Year Founded: 2014
  • HQ Location: Charlotte, US
  • Twitter: @Salesfully
    1,272 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    1 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Salesfully.com?

What Are G2 Users Discussing About Salesfully.com?

Salutary Data

Salutary provides the foundational Data sets for many of the industry's leading Martech and data platforms. As a boutique provider of U.S. contact records, our database of 70m+ records boasts some of the highest fill rates for key signals / fields such as: mobile phones (65% fill rate), job titles / functions (99%), business emails, as well as a full 360-view of the contact's education, professional and job histories. Our data is multi-sourced, standardized, de-duped, verified and curated resulting in highly accurate data.

Average Rating: 5.0/5.0

Total Reviews: 1

Who Is the Company Behind Salutary Data?

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Salutary Data?

SDRx

SDRx is an AI SDR that puts your outbound sales on autopilot. As your resident expert in prospecting, research, and email writing, SDRx builds you qualified pipeline around the clock - eliminating the need to expand your SDR team. List Building: Build Targeted Lists At Scale SDRx identifies your ideal customers to generate precise account lists enriched with verified emails and phone numbers. The result? Your AI SDR runs effective multi-channel outreach to qualified prospects from day one. Prospect Research: Conduct In-Depth Account Research Through comprehensive analysis of internal and external data sources, SDRx uncovers actionable insights about each account, enabling truly personalized outreach that resonates with prospects. Smart Personalization: Craft High-Converting Emails SDRx creates personalized emails using 25 proven frameworks, maximizing your response rates. As prospects engage, SDRx intelligently adjusts follow-up frequency and messaging based on their buying stage and awareness levels. Continuous Performance: Leave No Account Unturned SDRx operates 24/7/365 with zero ramp time, and no burnout. While SDRx systematically engages every account in your target market, your sales team focuses on what matters most - having conversations with your prospects.

Average Rating: 4.3/5.0

Total Reviews: 3

How Do G2 Users Rate SDRx?

  • Lead Quality: 10.0/10 (Category avg: 8.8/10)
  • Lead Enrichment: 5.0/10 (Category avg: 8.7/10)
  • Lead Analysis: 10.0/10 (Category avg: 8.6/10)

Who Is the Company Behind SDRx?

  • Seller: Klenty
  • Year Founded: 2016
  • HQ Location: Palo Alto, CA
  • Twitter: @KlentyHQ
    502 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    142 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 67% Small, 33% Medium

What Do G2 Reviewers Say About SDRx?

AI-generated summary from verified user reviews

Pros
  • Users value the automation capabilities of SDRx, significantly reducing manual work and enhancing productivity.
  • Users value the time-saving automation of SDRx, streamlining prospecting and enhancing efficiency in daily tasks.
  • Users love the simplified prospecting flow of SDRx, enhancing efficiency with personalized messages and insightful analytics.
  • Users find SDRx enhances their daily workflow by providing real-time customer engagement and automation that saves time.
  • Users love the ease of use of SDRx, efficiently managing prospecting tasks and personalizing outreach seamlessly.
Cons
  • Users find integration issues with tools like HubSpot and Freshsales, leading to manual work and inefficiencies.
  • Users find the overwhelming lack of integrations with tools like HubSpot and Freshsales frustrating and time-consuming.
  • Users experience slow loading due to the need for manual data syncing with CRMs like Pipedrive or HubSpot.
  • Users experience sync issues with SDRx, as manual data synchronization can slow down their workflow.

What Are Recent G2 Reviews of SDRx?

SPONA

SPONA is an AI-powered lead intelligence and sales data platform for B2B revenue teams that need verified company and contact data for prospecting, enrichment, and market research. Users describe an ideal customer profile in natural language or by voice, including target roles, company characteristics, locations, technologies, and other qualification criteria. SPONA asks follow-up questions, searches across multiple data sources, and provides sample records and a rationale before the user scales a request. The platform organizes the workflow into four stages: Extractor: Discovers companies and contacts that match the target profile across SPONA data sources, customer-provided sources, CRM data, uploaded documents, and permitted logged-in sources. Refiner: Removes duplicates, filters irrelevant records, enriches fields, and scores records against the requested criteria. Verifier: Cross-checks data points across sources and validates contact details before delivery. Exporter: Prepares data for CSV export, CRM and outreach workflows, or API delivery, depending on the plan. Common use cases include net-new lead acquisition, account and market mapping, CRM enrichment, URL or list enrichment, niche-industry research, and recurring delivery of newly identified prospects. SPONA supports B2B company and contact data as well as specialized datasets for brick-and-mortar businesses, Shopify stores, and venture-backed companies. SPONA is designed for founders, sales development teams, growth teams, and revenue operations teams at startups, small and midsize businesses, and enterprise organizations. Customers can review sample leads before scaling, use pay-as-you-go data requests, subscribe for recurring lead delivery, or use enterprise integrations and API access where available. Key capabilities include: Conversational ICP definition Multi-source company and contact discovery Data enrichment, deduplication, scoring, and verification Sample leads with fit rationale CRM, outreach, CSV, and API delivery options Recurring net-new lead workflows

Average Rating: 5.0/5.0

Total Reviews: 1

How Do G2 Users Rate SPONA?

  • Lead Quality: 10.0/10 (Category avg: 8.8/10)
  • Lead Enrichment: 10.0/10 (Category avg: 8.7/10)
  • Lead Analysis: 10.0/10 (Category avg: 8.6/10)

Who Is the Company Behind SPONA?

Who Uses This Product?

  • Company Size: 200% Small

What Are Recent G2 Reviews of SPONA?

TelephoneLists.biz

Imagine not having to pay outrageous prices up to 20 cents per lead anymore. With our monthly lead plan, that’s now a reality. You’ll love the 24 hour easy access portal that lets you download new leads whenever you need them – either business or consumer! Subscribe today for just one low monthly payment with no contract.

Average Rating: 5.0/5.0

Total Reviews: 1

How Do G2 Users Rate TelephoneLists.biz?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 9.3/10)

Who Is the Company Behind TelephoneLists.biz?

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of TelephoneLists.biz?

What Are G2 Users Discussing About TelephoneLists.biz?

TheWebLead

TheWebLead is a sales prospecting platform built for web agencies and freelancers who sell websites. It automatically identifies local businesses that need a new website or a redesign by analyzing their current site across 50+ criteria including design, SEO, performance, and conversion. Each prospect receives an AI-powered score so agencies focus on the highest-potential leads first. The tool generates professional PDF audits branded with the agency's name and personalized AIDA sales scripts. Instead of cold calling, agencies approach prospects with a concrete analysis that demonstrates expertise before the first conversation. Includes a built-in Kanban CRM and B2B enrichment.

Average Rating: 4.5/5.0

Total Reviews: 1

How Do G2 Users Rate TheWebLead?

  • Lead Quality: 8.3/10 (Category avg: 8.8/10)
  • Lead Enrichment: 6.7/10 (Category avg: 8.7/10)
  • Lead Analysis: 10.0/10 (Category avg: 8.6/10)

Who Is the Company Behind TheWebLead?

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of TheWebLead?

Ubico

Ubico provides an AI-powered lead engagement platform for sales and marketing organizations. Ubico works with leading global companies such as Hitachi Vantara, AccedoTV, Freshbooks. Transform lead engagement with the power of automation. Ubico make every sales rep more productive by integrating with your existing systems to build machine learning models that generate common emails and automate repetitive tasks.

Average Rating: 4.5/5.0

Total Reviews: 1

Who Is the Company Behind Ubico?

  • Seller: Ubico
  • Year Founded: 2020
  • HQ Location: Montreal, CA
  • LinkedIn® Page: www.linkedin.com
    22 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Ubico?

WhoGoes

WhoGoes is a type of sales intelligence and lead generation platform that helps B2B sales, marketing, and event teams find verified individual attendee contacts for trade shows and conferences worldwide. Not post-event lists. Not anonymous signals. Named people, before the show, with verified work emails and a LinkedIn post proving they're attending. That last part matters. Most attendee data has no sourcing users can independently check. WhoGoes is different because every contact links back to the specific public LinkedIn post where that person said they're attending, so any user can verify any record themselves before sending a single email. Two clicks. Done. SDRs and BDRs use it to build targeted outreach lists in minutes instead of spending hours scraping LinkedIn manually. Cold email is hard. But opening with "saw your post about heading to HIMSS" changes the dynamic entirely, and WhoGoes is what delivers that kind of context at scale, across more than 1,200 events in every major vertical. Field marketers book meetings before the floor opens. Exhibitors confirm whether target accounts are actually attending before committing to booth spend. Not a guess. Real data. Key features and value propositions: - Proof of attendance per contact: every record links to a public LinkedIn post confirming attendance, so users can verify any contact before reaching out - Verified work emails with 95%+ deliverability: contacts validated through ZeroBounce before delivery - 1,200+ events covered: tech (CES, Dreamforce, INBOUND), healthcare (HIMSS, RSNA), retail (NRF, Shoptalk), logistics (MODEX, ProMat), cybersecurity (RSA, Black Hat), and more - Pay-per-contact pricing: free tier with 20 credits on signup, paid packs from $29 for 200 contacts, no contracts, credits don't expire - CSV export: compatible with Salesforce, HubSpot, Pipedrive, Outreach, Salesloft, Instantly, and Smartlead Unlike account-level intent data platforms that typically start at $25,000-$50,000/year and surface anonymous company-level signals rather than individual people, WhoGoes gives you named contacts with verified work emails, available before the show, starting at $29. Not the same product. Not the same problem.

Average Rating: 5.0/5.0

Total Reviews: 1

Who Is the Company Behind WhoGoes?

  • Seller: WhoGoes
  • Year Founded: 2023
  • HQ Location: San Francisco, US
  • LinkedIn® Page: www.linkedin.com
    1 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of WhoGoes?

Xenon

Supercharge your sales pipeline with Xenon, the most advanced and intuitive Cold Email & Multi-Channel Sales Automation CRM. Xenon empowers you to automate your entire sales process, from prospecting and lead nurturing to closing deals and managing your pipeline. With Xenon, you can: Send personalized cold emails at scale. Track your email opens, clicks, and conversions. Automate your follow-ups and reminders. Manage your leads and contacts in one central location. Get real-time insights into your sales performance. More than +200 features to generate leads.

Average Rating: 5.0/5.0

Total Reviews: 1

How Do G2 Users Rate Xenon?

  • Lead Quality: 10.0/10 (Category avg: 8.8/10)
  • Lead Enrichment: 10.0/10 (Category avg: 8.7/10)
  • Lead Analysis: 10.0/10 (Category avg: 8.6/10)

Who Is the Company Behind Xenon?

  • Seller: Xenon
  • Year Founded: 2023
  • HQ Location: N/A
  • LinkedIn® Page: www.linkedin.com
    1 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Xenon?

Alanna Iwuh
A
Researched and written by Alanna Iwuh
Updated October 3, 2024