Company lists · Data verified August 2026
Top 25 B2B SEO agencies based in Houston, United States
There are 106 B2B SEO agencies headquartered in Houston, United States (RevenueBase, August 2026). RevenueBase tracks 501 professional contacts across them, including 144 with verified work emails and 120 with mobile numbers. New York is the largest hub.
This list covers B2B SEO agencies headquartered in Houston, 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.
The 25 largest B2B SEO agencies based in Houston, United States
Ranked by team size| # | Company | Verified emails |
|---|---|---|
| 1 |  Forthea | 42 |
| 2 |  EWR Digital | 5 |
| 3 |  Regex SEO | 14 |
| 4 |  Poplabs | 1 |
| 5 |  Tactic Digital | 8 |
| 6 |  GET ME Links | 9 |
| 7 |  Marketing Refresh | 5 |
| 8 |  Gopoint Agency | 6 |
| 9 |  Itsguru | 1 |
| 10 |  Bizopia | 7 |
| 11 |  Buzz Digital Agency | 4 |
| 12 |  Enlimited | 3 |
| 13 |  Dealerwebb Services | 2 |
| 14 |  Directory ONE Search Marketing | 3 |
| 15 |  Destiny Marketing Solutions | 2 |
| 16 |  Seo411 | 4 |
| 17 |  SEO Houston Pros | 1 |
| 18 |  Klever Digital | 2 |
| 19 |  Alkali | 1 |
| 20 |  Apache Interactive | 3 |
| 21 |  Omni 360 Digital Marketing Strategies | 1 |
| 22 |  Taverit Marketing Agency & SEO Company | 2 |
| 23 |  WHO Digital Strategy | 2 |
| 24 |  Webranx Internet Marketing & Strategies | 1 |
| 25 |  Molecoolar | 1 |
Showing 25 of 106 B2B SEO agencies based in Houston, United States
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B2B SEO agencies based in Houston, United States at a glance
As of Aug 28, 2026Companies by employee count
B2B SEO agencies by metro in the United States
| 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 Houston, 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; 1 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 Houston, United States?
There are 106 B2B SEO agencies headquartered in Houston, United States as of August 2026 (RevenueBase).
What is the largest company on this list?
Forthea, headquartered in Houston, 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 144 verified decision-maker contacts tracked across these 106 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.