Company lists · Data verified August 2026

Top 25 B2B SEO agencies based in the United States

Name: B2B SEO 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 5,702 companies tracked

There are 5,702 B2B SEO agencies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 69,193 professional contacts across them, including 7,803 with verified work emails and 10,454 with mobile numbers. New York is the largest hub.

This list covers B2B SEO 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.

5,702Companies

69,193Contacts tracked

7,803Verified emails

10,454Mobile numbers

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The 25 largest B2B SEO agencies based in the United States

Ranked by team size

Top 25 of 5,702 B2B SEO 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	Wildnet Technologies	New York, NY	201-500	609	135
2	Ebrandz LLP	New York, NY	201-500	427	115
3	KPL Tech Solution Pvt. LTD	Middletown, DE	201-500	390	13
4	Boostability	Lehi, UT	201-500	330	73
5	Coalition Technologies	Los Angeles, CA	201-500	320	116
6	Walker Sands	Boston, MA	201-500	212	142
7	Brandrep	Irvine, CA	51-200	152	31
8	Webspero Solutions	Los Angeles, CA	51-200	145	60
9	Hennessey Digital	North Hollywood, CA	51-200	114	84
10	Tripledart	Plano, TX	51-200	114	57
11	Zoek Marketing	Irvine, CA	201-500	106	37
12	Twogether	San Francisco California, CA	201-500	95	59
13	Web20 Ranker	Harrisburg, PA	51-200	92	7
14	Semify	Rochester, NY	51-200	76	27
15	BX Studio	Los Angeles, CA	51-200	75	33
16	On The Map, INC	Miami, FL	51-200	63	25
17	Everservice Holdings, LLC	Los Angeles, CA	201-500	60	24
18	AYIMA	New York, NY	51-200	56	20
19	Advertmarketers	Redding, CA	51-200	56	7
20	Omniscient Digital	New York City, NY	51-200	51	18
21	Meritb2b	Evanston, IL	201-500	50	19
22	Marketingdice	Grandville, MI	201-500	48	2
23	USERP	Denver, CO	51-200	41	31
24	Adler Local	Fort Lauderdale, FL	51-200	38	4
25	digitalmarketing.com	Irvine, CA	51-200	38	2

Showing 25 of 5,702 B2B SEO agencies based in the United States

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B2B SEO agencies based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 218 HQs

10,454Contacts with mobile numbers

59Emails re-verified in last 30 days

Companies by employee count

1-10

4,125

11-50

1,289

51-200

218

201-500

501-1,000

1,001-5,000

10001+

B2B SEO agencies by metro

Metro	Companies
B2B SEO agencies in New York	218
B2B SEO agencies in Los Angeles	140
B2B SEO agencies in Houston	106
B2B SEO agencies in Austin	91
B2B SEO agencies in San Diego	89
B2B SEO agencies in Denver	85
B2B SEO agencies in Miami	83

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 SEO 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; 59 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 SEO agencies are there based in the United States?

There are 5,702 B2B SEO agencies headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Wildnet Technologies, headquartered in New York, tops this list with the largest team on record.

Which city has the most B2B SEO agencies?

New York leads with 218 headquartered companies, followed by Los Angeles (140) and Houston (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 7,803 verified decision-maker contacts tracked across these 5,702 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.