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Company lists · Data refreshed September 2026

Top 25 Lead generation software companies based in the United States

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 3,081 companies tracked

RevenueBase identified 3,081 lead generation software companies headquartered in the United States as of September 2026 and tracks 33,335 professional contacts across them, including 6,918 with verified work emails and 6,815 with mobile numbers. New York is the largest hub.

This list covers lead generation software companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 4, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review
3,081Companies
33,335Contacts tracked
6,918Verified emails
6,815Mobile numbers
Unlock all 3,081 companies Free signup · no credit card · 500 free credits

The 25 largest lead generation software companies based in the United States

Ranked by team size
Top 25 of 3,081 lead generation software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names lead generation software companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
6senseIndirect evidence
San Francisco, United StatesHQ checked Sep 4, 20261,001-5,0001,426

“6sense is on a mission to revolutionize the way B2B organizations create revenue by predicting customers most likely to buy and recommending the best course of action to engage…”

Source: company website · checked Sep 4, 2026
2
CienceStrong evidence
Miami, FL, United StatesHQ checked Sep 4, 2026201-5001,071

“CIENCE Technologies, Inc, founded in 2015 and headquartered in Denver, CO, is a pioneering global company in lead generation software and services, committed to transforming the…”

Source: company website · checked Sep 4, 2026
3
apollo.ioIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 4, 2026501-1,000843

“Apollo.io is the AI-powered end-to-end go-to-market platform that empowers sales, marketing, and revenue teams to find prospects, engage customers, and close deals with…”

Source: company website · checked Sep 4, 2026
4
ApplovinIndirect evidence
Palo Alto, CA, United StatesHQ checked Sep 4, 2026201-500753

“AppLovin helps businesses of any size reach over a billion people who play mobile games every day.”

Source: company website · checked Sep 4, 2026
5
SalebuildPartial evidence
Redwood City, CA, United StatesHQ checked Sep 4, 2026n/a708

“Salesify, a leading provider of B2B demand generation services, helps our clients create pipeline and accelerate revenue by identifying, profiling, nurturing and connecting with…”

Source: company website · checked Sep 4, 2026
6
Telenet Marketing SolutionsIndirect evidence
Athens, GA, United StatesHQ checked Sep 4, 2026201-500554

“From initial market awareness to the final stages of a complex B2B buying journey, modern buyers crave authentic interaction.”

Source: company website · checked Sep 4, 2026
7
Callbox INCStrong evidence
Encino, CA, United StatesHQ checked Sep 4, 2026201-500501

“Callbox is the #1 trusted lead generation services and AI-Powered Growth Strategy Partner by enterprise and scaling businesses in the USA, Canada, Asia Pacific, Latin America…”

Source: company website · checked Sep 4, 2026
8
SaleshiveIndirect evidence
Denver, CO, United StatesHQ checked Sep 4, 202651-200455
Source: company website · checked Sep 4, 2026
9
LeadgeniusIndirect evidence
Berkeley, CA, United StatesHQ checked Sep 4, 2026201-500424

“LeadGenius helps B2B companies find and reach their next best customers.”

Source: company website · checked Sep 4, 2026
10
Beyond Codes INCIndirect evidence
Simi Valley, TX, United StatesHQ checked Sep 4, 2026201-500385

“Founded in 2008, Beyond Codes Inc.”

Source: company website · checked Sep 4, 2026
11
CallrailPartial evidence
Atlanta, GA, United StatesHQ checked Sep 4, 2026201-500330

“CallRail is the lead engagement platform that makes it easy for businesses to attract more leads, convert more customers, and optimize their marketing.”

Source: company website · checked Sep 4, 2026
12
Chili PiperIndirect evidence
New York, NY, United StatesHQ checked Sep 4, 202651-200237

“Chili Piper is the all-in-one Demand Conversion Platform, used by Intuit, Spotify, Airbnb, Gong, and thousands more We are the only platform that consolidates Form Routing, Chat…”

Source: company website · checked Sep 4, 2026
13
instantly.aiIndirect evidence
Sheridan, WY, United StatesHQ checked Sep 4, 202651-200218

“All-in-one outreach platform for business growth.”

Source: company website · checked Sep 4, 2026
14
ArtisanIndirect evidence
San Francisco, United StatesHQ checked Sep 4, 202651-200211

“Artisan builds AI employees.”

Source: company website · checked Sep 4, 2026
15
LeandataIndirect evidence
Santa Clara, CA, United StatesHQ checked Sep 4, 202651-200207

“Help your teams align to your customer’s journey by uniting your CRM data, signals, and tools from the first buying signal to closed-won and beyond.”

Source: company website · checked Sep 4, 2026
16
KEAPPartial evidence
Chandler, AZ, United StatesHQ checked Sep 4, 2026201-500200

“With Keap, you'll easily capture, organize, track, and nurture all of your leads to increase sales and revenue.”

Source: company website · checked Sep 4, 2026
17
ChannelgrowthStrong evidence
Houston, TX, United StatesHQ checked Sep 4, 2026201-500194

“ChannelGrowth provides B2B data acquisition, lead generation, prospecting, and sales teams at scale.”

Source: company website · checked Sep 4, 2026
18
Concept ServicesStrong evidence
Copley, OH, United StatesHQ checked Sep 4, 202651-200186

“Concept develops and implements comprehensive B2B lead generation and sales development solutions for companies.”

Source: company website · checked Sep 4, 2026
19
Salaria Sales SolutionsStrong evidence
Washington D.c., WA, United StatesHQ checked Sep 4, 202651-200183

“Salaria Sales Solutions is a B2B lead generation and sales development agency.”

Source: company website · checked Sep 4, 2026
20
OutboundengineIndirect evidence
Seattle, WA, United StatesHQ checked Sep 4, 2026201-500183

“We believe every business deserves great marketing.”

Source: company website · checked Sep 4, 2026
21
CLOSEIndirect evidence
Austin, NY, United StatesHQ checked Sep 4, 202651-200142

“Close is the sales CRM built for founders, startups, and small businesses that want to grow faster.”

Source: company website · checked Sep 4, 2026
22
WarmlyIndirect evidence
San Francisco, United StatesHQ checked Sep 4, 202651-200138

“Warmly makes your marketing effective by automatically identifying your ideal customers, monitoring their buying intent in real time, and engaging through the right channel at the…”

Source: company website · checked Sep 4, 2026
23
B2B RocketIndirect evidence
Lewes, DE, United StatesHQ checked Sep 4, 202651-200135

“B2B Rocket, a Blackpearl Group company (NZE: BPG, publicly traded), is on a mission to empower 1M+ businesses worldwide with AI-powered sales automation.”

Source: company website · checked Sep 4, 2026
24
CLICKIndirect evidence
Atlanta, GA, United StatesHQ checked Sep 4, 2026201-500134

“Click is the only complete marketing technology solution that is natively integrated with Microsoft Dynamics CRM.”

Source: company website · checked Sep 4, 2026
25
NetlineStrong evidence
Newton, CA, United StatesHQ checked Sep 4, 202651-200131

“NetLine is the #1 Programmatic B2B Lead Generation Platform, empowering marketers to engage in-market buyers with targeted content and accelerate revenue growth.”

Source: company website · checked Sep 4, 2026

Showing 25 of 3,081 lead generation software companies based in the United States

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Lead generation software companies based in the United States at a glance

As of Sep 4, 2026
1-10Median size (employees)
New YorkLargest hub · 165 HQs
6,815Contacts with mobile numbers
Sep 4, 2026Data refreshed

Companies by employee count

1-10
1,831
11-50
921
51-200
246
201-500
56
501-1,000
11
1,001-5,000
8
5,001-10,000
1
10001+
2

Verified emails by last verification

0–30
0
31–60
642
61–90
3,477
90–180
2,701
180+
98

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among lead generation software companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “lead generation software companies”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among lead generation software companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 6,918 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 4, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Lead generation software companies by metro

Frequently asked

How many lead generation software companies are there based in the United States?

RevenueBase identified 3,081 lead generation software companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

6sense, headquartered in New York, tops this list with the largest team on record.

Which city has the most lead generation software companies?

New York leads with 165 headquartered companies, followed by San Francisco (127) and Los Angeles (78).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 6,918 verified decision-maker contacts tracked across these 3,081 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 4, 2026.

Ready to reach these companies? Verified emails and direct dials for all 3,081 lead generation software companies based in the United States. Start with a free account, no credit card.

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Related lists

Browse: Companies home · All United States lists · All Lead generation software companies lists · New lists

About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.

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