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Company lists · Data refreshed September 2026

Top 25 Lead generation agencies based in the United States

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 6,134 companies tracked

RevenueBase identified 6,134 lead generation agencies headquartered in the United States as of September 2026 and tracks 56,749 professional contacts across them, including 10,955 with verified work emails and 12,017 with mobile numbers. New York is the largest hub.

This list covers lead generation agencies 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
6,134Companies
56,749Contacts tracked
10,955Verified emails
12,017Mobile numbers
Unlock all 6,134 companies Free signup · no credit card · 500 free credits

The 25 largest lead generation agencies based in the United States

Ranked by team size
Top 25 of 6,134 lead generation agencies 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 agencies: 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
Data AxlePartial evidence
Dallas, TX, United StatesHQ checked Sep 4, 20261,001-5,0001,082

“Data Axle helps clients create a foundation of clean data, find new leads, develop winning strategies, design beautiful campaigns, and can handle all day-to-day execution needs”

Source: company website · checked Sep 4, 2026
2
DemandscienceIndirect evidence
Boston, United StatesHQ checked Sep 4, 20261,001-5,0001,080

“With proprietary data and omni-channel activation like events, content, programmatic and chat, we cut through the noise to reach entire buyer groups, driving engagement and impact…”

Source: company website · checked Sep 4, 2026
3
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
4
S2w MediaIndirect evidence
New York, CA, United StatesHQ checked Sep 4, 2026501-1,000798

“We are innovators, problem solvers, thought leaders, and above all else, a team.”

Source: company website · checked Sep 4, 2026
5
AnteriadIndirect evidence
New York, NY, United StatesHQ checked Sep 4, 2026501-1,000737

“Data Driven.”

Source: company website · checked Sep 4, 2026
6
Abstrakt Marketing GroupIndirect evidence
St Louis, MO, United StatesHQ checked Sep 4, 2026501-1,000724

“Abstrakt Marketing Group helps businesses grow with bold strategies that deliver results.”

Source: company website · checked Sep 4, 2026
7
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
8
CMDIndirect evidence
Portland, OR, United StatesHQ checked Sep 4, 202651-200597

“Take command of every opportunity with a partner that gets results.”

Source: company website · checked Sep 4, 2026
9
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
10
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
11
Infoanalytica, INCIndirect evidence
San Jose, CA, United StatesHQ checked Sep 4, 2026201-500477

“InfoAnalytica is a B2B sales acceleration partner for mid-market and enterprise companies.”

Source: company website · checked Sep 4, 2026
12
Sg360Indirect evidence
Wheeling, IL, United StatesHQ checked Sep 4, 2026501-1,000473

“sg360° can help you identify and connect with your best prospects 1:1, both offline and on.”

Source: company website · checked Sep 4, 2026
13
SaleshiveIndirect evidence
Denver, CO, United StatesHQ checked Sep 4, 202651-200455
Source: company website · checked Sep 4, 2026
14
Alliance PdmsStrong evidence
Hurst, TX, United StatesHQ checked Sep 4, 202651-200428

“Alliance is a domestically operated, internationally recognized professional contact center specializing in lead generation and appointment setting.”

Source: company website · checked Sep 4, 2026
15
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
16
EBQIndirect evidence
Austin, TX, United StatesHQ checked Sep 4, 2026201-500379

“EBQ is an outsourced sales and marketing organization that provides services to help companies scale.”

Source: company website · checked Sep 4, 2026
17
FUNNLPartial evidence
Philadelphia, United StatesHQ checked Sep 4, 2026201-500351

“FunnL was built on a revolutionary idea: B2B companies don’t need more leads-they need more qualified sales meetings with decision-makers.”

Source: company website · checked Sep 4, 2026
18
JumpcrewIndirect evidence
Nashville, TN, United StatesHQ checked Sep 4, 2026201-500349

“Launch-ready sales teams, experienced leaders, and time-tested processes to help you acquire new customers faster and with less risk than doing it alone.”

Source: company website · checked Sep 4, 2026
19
AcceligizeStrong evidence
Houston, TX, United StatesHQ checked Sep 4, 2026201-500348

“Acceligize is a global B2B marketing company, providing full funnel lead generation and content marketing solutions to some of the world’s finest technology companies, media…”

Source: company website · checked Sep 4, 2026
20
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
21
Unboundb2bIndirect evidence
San Jose, CA, United StatesHQ checked Sep 4, 2026201-500295

“UnboundB2B is a marketing agency that caters to Enterprise and Technology companies across the globe to improve ROI on their marketing spend and shorten sales cycle with its…”

Source: company website · checked Sep 4, 2026
22
Calltend INCStrong evidence
Los Angeles, United StatesHQ checked Sep 4, 202651-200288

“Current Vertical Focus: Real Estate - Lead Generation, Lead Conversion, Lead Qualification, Agent Recruiting Mortgage - Lead Conversion, Lead Qualification Insurance - Lead…”

Source: company website · checked Sep 4, 2026
23
TSL MarketingStrong evidence
Elkridge, MD, United StatesHQ checked Sep 4, 2026201-500252

“TSL Marketing provides lead generation, SEO, Website, Content, Channel Marketing and HubSpot agency services to MSPs, IT companies, IT Services firms, and SaaS firms.”

Source: company website · checked Sep 4, 2026
24
Rocket ConnectionsIndirect evidence
Detroit, MI, United StatesHQ checked Sep 4, 20261,001-5,000248

“Rocket Connections is a sales and support platform specializing in contact center services.”

Source: company website · checked Sep 4, 2026
25
Lakeb2bIndirect evidence
Dover, DE, United StatesHQ checked Sep 4, 20261,001-5,000232

“Data-Driven Growth Services That Deliver LakeB2B helps B2B brands scale smarter - with pre-packaged data, full-funnel campaign support, and high-converting creative solutions.”

Source: company website · checked Sep 4, 2026

Showing 25 of 6,134 lead generation agencies based in the United States

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Lead generation agencies based in the United States at a glance

As of Sep 4, 2026
1-10Median size (employees)
New YorkLargest hub · 300 HQs
12,017Contacts with mobile numbers
Sep 4, 2026Data refreshed

Companies by employee count

1-10
3,699
11-50
1,798
51-200
471
201-500
111
501-1,000
25
1,001-5,000
13
5,001-10,000
1
10001+
5

Verified emails by last verification

0–30
0
31–60
922
61–90
5,571
90–180
4,321
180+
141

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 agencies, 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 agencies”. 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 agencies, 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, 10,955 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 agencies by metro

Frequently asked

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

RevenueBase identified 6,134 lead generation agencies 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?

Data Axle, headquartered in Dallas, tops this list with the largest team on record.

Which city has the most lead generation agencies?

New York leads with 300 headquartered companies, followed by Miami (164) and Los Angeles (156).

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 10,955 verified decision-maker contacts tracked across these 6,134 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 6,134 lead generation agencies 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 agencies 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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