Company lists · Data verified August 2026

Top 25 B2B lead generation agencies based in the United States

Name: B2B lead generation agencies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 3,800 companies tracked

There are 3,800 B2B lead generation agencies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 42,103 professional contacts across them, including 7,329 with verified work emails and 7,778 with mobile numbers. New York is the largest hub.

This list covers B2B 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. Data current as of August 28, 2026.

3,800Companies

42,103Contacts tracked

7,329Verified emails

7,778Mobile numbers

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The 25 largest B2B lead generation agencies based in the United States

Ranked by team size

Top 25 of 3,800 B2B lead generation agencies based in the United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Cience	Miami, FL	201-500	1,071	12
2	S2w Media	San Francisco, CA	501-1,000	798	127
3	Infuse	Boca Raton, FL	1,001-5,000	789	142
4	Anteriad	New York, NY	501-1,000	737	348
5	Telenet Marketing Solutions	Athens, GA	201-500	554	40
6	Callbox INC	Encino, CA	201-500	501	2
7	Infoanalytica, INC	San Jose, CA	201-500	477	94
8	Beyond Codes INC	Houston, TX	201-500	385	99
9	EBQ	Austin, TX	201-500	379	105
10	FUNNL	Philadelphia	201-500	351	1
11	Acceligize	Houston, TX	201-500	348	20
12	Unboundb2b	San Jose, CA	201-500	295	131
13	TSL Marketing	Elkridge, MD	201-500	252	37
14	Rocket Connections	Detroit, MI	1,001-5,000	248	21
15	Walker Sands	Boston, MA	201-500	212	142
16	Belkins INC	Dover, DE	201-500	207	110
17	Dynamic BDC	Troy, MI	501-1,000	190	20
18	Demand Media BPM LLP	New York, NY	201-500	144	3
19	Boom Demand	Lehi, UT	1,001-5,000	123	7
20	Sales Partnerships, INC	Broomfield, CO	201-500	98	6
21	Twogether	San Francisco California, CA	201-500	95	59
22	Thinkdirect Marketing Group	Largo, FL	501-1,000	83	9
23	Terminus By Demandscience	Atlanta, GA	201-500	80	19
24	Binary Demand	Henderson, NV	201-500	56	19
25	Informa Engage	New York, NY	1,001-5,000	55	41

Showing 25 of 3,800 B2B lead generation agencies based in the United States

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B2B lead generation agencies based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 220 HQs

7,778Contacts with mobile numbers

42Emails re-verified in last 30 days

Companies by employee count

1-10

2,180

11-50

1,152

51-200

345

201-500

501-1,000

1,001-5,000

5,001-10,000

B2B lead generation agencies by metro

Metro	Companies
B2B lead generation agencies in New York	220
B2B lead generation agencies in Los Angeles	110
B2B lead generation agencies in Miami	106
B2B lead generation agencies in Sheridan	99
B2B lead generation agencies in San Francisco	97
B2B lead generation agencies in Austin	95
B2B lead generation agencies in Houston	68

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “B2B lead generation agencies”, with match quality audited by blind human judging, and headquartered in the United States.
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: Contact records re-verify on a rolling cadence; 42 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many B2B lead generation agencies are there based in the United States?

There are 3,800 B2B lead generation agencies headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Cience, headquartered in Miami, tops this list with the largest team on record.

Which city has the most B2B lead generation agencies?

New York leads with 220 headquartered companies, followed by Los Angeles (110) and Miami (106).

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 7,329 verified decision-maker contacts tracked across these 3,800 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.