Company lists · Data verified August 2026
Top 25 Law firms based in Houston, United States
This directory lists 944 law firms based in Houston, United States, with 20,764 professional contacts and 11,814 email addresses. As of August 2026, New York is the single most-represented city among the companies listed.
Law firms are professional service organizations that provide legal advice, representation, and related services through licensed attorneys. This list covers companies that provide legal advice, legal representation, or related legal services through licensed attorneys. Ranked by team size, largest first. Data current as of August 28, 2026.
The 25 largest law firms based in Houston, United States
Ranked by team size| # | Company | Verified emails |
|---|---|---|
| 1 |  Mayer Brown | 2,206 |
| 2 |  Husch Blackwell | 1,789 |
| 3 |  O'melveny & Myers LLP | 941 |
| 4 |  Steptoe LLP | 627 |
| 5 |  Freeman Mathis & Gary, LLP | 699 |
| 6 |  Thomas J. Henry LAW | 478 |
| 7 |  Andrews Kurth Kenyon | 79 |
| 8 |  Munsch Hardt Kopf & Harr, P.C | 225 |
| 9 |  Gray Reed | 198 |
| 10 |  Schouest, Bamdas, Soshea & Benmaier Pllc | 206 |
| 11 |  Porter Hedges LLP | 154 |
| 12 |  Johnson LAW Group | 89 |
| 13 |  Forman Watkins & Krutz LLP | 90 |
| 14 |  Mound Cotton Wollan & Greengrass LLP | 94 |
| 15 |  Fee, Smith & Sharp LLP | 108 |
| 16 |  Lightfoot, Franklin & White | 85 |
| 17 |  Arnold & Itkin LLP | 82 |
| 18 |  AZA Ahmad, Zavitsanos & Mensing | 79 |
| 19 |  Andrews Myers, P.C | 89 |
| 20 |  Crain Caton & James | 62 |
| 21 |  Osha Bergman Watanabe & Burton LLP | 77 |
| 22 |  Hooverslovacek LLP | 46 |
| 23 |  Williams Hart & Boundas, LLP | 46 |
| 24 |  Kuiper LAW Firm, Pllc | 65 |
| 25 |  Abraham Watkins | 18 |
Showing 25 of 944 law firms based in Houston, United States
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Law firms based in Houston, United States at a glance
As of Aug 28, 2026Companies by employee count
Law firms by metro in the United States
| Metro | Companies |
|---|---|
| Law firms in New York | 2060 |
| Law firms in Los Angeles | 993 |
| Law firms in Chicago | 956 |
| Law firms in Houston | 948 |
| Law firms in Atlanta | 668 |
| Law firms in Dallas | 655 |
| Law firms in Miami | 636 |
| Law firms in Washington | 552 |
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 “law firms”, 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; 60 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 law firms are listed based in Houston, United States?
The directory includes 944 law firms based in Houston, United States as of August 2026.
Where are most of the listed law firms located?
New York is the single most-represented city among the law firms on the list.
How many contacts and email addresses are available for these law firms?
The list includes 20,764 professional contacts and 11,814 email addresses for the listed law firms.
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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.