Company lists · Data refreshed September 2026
Top 25 Big 4 law firms based in Houston, United States
RevenueBase identified 163 big 4 law firms headquartered in Houston, United States as of September 2026 and tracks 6,108 professional contacts across them, including 3,574 with verified work emails. Across the United States, New York is the largest hub for this category (536 companies); Houston has 163.
This list covers big 4 law firms headquartered in Houston, 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 23, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.
The 25 largest big 4 law firms based in Houston, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,693 contacts → | ||||
Partial evidence “Vinson & Elkins is a law firm of global distinction, working with leading companies on wide-ranging matters in key industries across the economy.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,477 contacts → | ||||
Partial evidence “Baker Botts is an international law firm whose lawyers practice throughout a network of offices around the globe.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 3 | 316 contacts → | ||||
Partial evidence “Chamberlain Hrdlicka is a multi-disciplinary law firm representing clients around the world and providing value at the highest level of service.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 4 | 314 contacts → | ||||
Partial evidence “As a full-service Texas law firm with a comprehensive range of litigation and transactional practice groups, Gray Reed's 150 attorneys focus on understanding our clients'…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 5 | 222 contacts → | ||||
Partial evidence “Porter Hedges is recognized as one of the premier business law firms based in Houston.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 6 | 165 contacts → | ||||
Partial evidence “Coats Rose is a transactional and litigation law firm focused on development: the development of real estate, affordable housing, special purpose districts, business and private…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 7 | 144 contacts → | ||||
Indirect evidence “About Brown Sims - For over 50 years, Brown Sims has dedicated itself to providing its clients with experienced-based solutions tailored to their specific legal problems.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 8 | 119 contacts → | ||||
Indirect evidence “MehaffyWeber was founded in 1946 as a litigation firm.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 9 | 93 contacts → | ||||
Partial evidence “Crain Caton & James has several practice areas including: • Appellate • Banking and Financial Services • Bankruptcy and Creditor Rights • Commercial Litigation • Construction Law…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 10 | 90 contacts → | ||||
Indirect evidence “For over 50 years, Houston, Texas based HooverSlovacek LLP has been helping clients with dynamic, cost efficient, result driven representation.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 11 | 86 contacts → | ||||
Indirect evidence “Pappas Grubbs Price is a Texas-based civil litigation defense firm.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 12 | 85 contacts → | ||||
Partial evidence “Kuiper Law Firm has established itself as a trusted legal partner for businesses across diverse industries.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 13 | 82 contacts → | ||||
Indirect evidence “Yetter Coleman is based in Houston, Texas.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 14 | 63 contacts → | ||||
Partial evidence “BoyarMiller is a Houston-based law firm offering comprehensive legal services.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 15 | 58 contacts → | ||||
Indirect evidence “From the Board Room to the Courtroom Our litigation strategy is always crafted with your business objectives in mind.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 16 | 52 contacts → | ||||
Indirect evidence “Since the firm’s inception in 1896 and from its offices in Houston, Texas, Crady Jewett McCulley & Houren LLP has provided comprehensive legal counsel to businesses and…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 17 | 42 contacts → | ||||
Partial evidence “Daniels & Tredennick handles complex legal matters across both litigation and corporate law.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 18 | 42 contacts → | ||||
Partial evidence “RFH is a national law firm representing clients in the banking, finance, and oil & gas industries across the United States” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 19 | 42 contacts → | ||||
Partial evidence “HANSZEN LAPORTE IS A HOUSTON-BASED, AV “PREEMINENT” RATED LAW FIRM COMPRISED OF THREE PRACTICE GROUPS, LITIGATION, BUSINESS AND REAL ESTATE.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 20 | 37 contacts → | ||||
Partial evidence “Rapp & Krock, PC is a business law firm that serves startups, and small to medium-sized businesses, providing business transactional and litigation services to a wide range of…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 21 | 35 contacts → | ||||
Partial evidence “Schlanger Silver is a full-service, Houston, Texas law firm, providing legal services to businesses and individuals in a wide range of practice areas, including Bankruptcy…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 22 | 32 contacts → | ||||
Indirect evidence “Reynolds Frizzell LLP is a commercial litigation firm focused on resolving complex disputes across the globe.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 23 | 32 contacts → | ||||
Indirect evidence “Beirut | Dubai | Houston | Al Khobar | Bahrain | Riyadh Empowering Businesses Worldwide Established in 2012, KN Legal has spent over a decade providing clients with superior legal…” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 24 | 30 contacts → | ||||
Indirect evidence “We are a team of trial lawyers that represent the common person.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
| 25 | 22 contacts → | ||||
Indirect evidence “RR & A works with business owners, operators, and investors who need legal advice that aligns with how their businesses actually run.” Source: RevenueBase Database · checked Sep 23, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: big 4 law firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names big 4 law firms.
- Partial evidence
- Its own public description names part of big 4 law firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name big 4 law firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 163 big 4 law firms based in Houston, United States
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Big 4 law firms based in Houston, United States at a glance
As of Sep 23, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Houston, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 163 companies.
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 big 4 law firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Houston, United States whose own description of what they do matches “big 4 law firms”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names big 4 law firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among big 4 law firms, and records with no verified work email. Companies headquartered outside Houston 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 its RevenueBase Smart Search 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, 3,574 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 23, 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.
Big 4 law firms by metro in the United States
- Big 4 law firms in New York536
- Big 4 law firms in Chicago267
- Big 4 law firms in Los Angeles235
- Big 4 law firms in Dallas184
- Big 4 law firms in Miami157
- Big 4 law firms in Atlanta142
- Big 4 law firms in Washington135
- Big 4 law firms in Boston117
- Big 4 law firms in San Francisco105
- Big 4 law firms in San Diego94
- Big 4 law firms in Austin89
- Big 4 law firms in Denver82
- Big 4 law firms in Irvine79
- Big 4 law firms in Philadelphia79
- Big 4 law firms in Minneapolis69
- Big 4 law firms in Portland66
- Big 4 law firms in Seattle61
- Big 4 law firms in New Orleans60
- Big 4 law firms in Coral Gables59
- Big 4 law firms in Birmingham55
- Big 4 law firms in Cleveland54
- Big 4 law firms in Phoenix54
- Big 4 law firms in Fort Lauderdale50
- Big 4 law firms in Tampa48
- Big 4 law firms in Columbus45
- Big 4 law firms in Pittsburgh42
- Big 4 law firms in Salt Lake City40
- Big 4 law firms in Charlotte39
- Big 4 law firms in Milwaukee39
- Big 4 law firms in Sacramento39
- Big 4 law firms in Baltimore38
- Big 4 law firms in Nashville37
- Big 4 law firms in Raleigh36
- Big 4 law firms in Newport Beach35
- Big 4 law firms in Indianapolis34
- Big 4 law firms in Orlando34
- Big 4 law firms in Columbia33
- Big 4 law firms in San Antonio33
- Big 4 law firms in Kansas City32
- Big 4 law firms in Tulsa32
- Big 4 law firms in Oklahoma City31
- Big 4 law firms in Pasadena31
- Big 4 law firms in Jacksonville30
- Big 4 law firms in San Jose30
- Big 4 law firms in White Plains30
- Big 4 law firms in Cincinnati29
- Big 4 law firms in Newark28
- Big 4 law firms in Wilmington28
- Big 4 law firms in Beverly Hills27
- Big 4 law firms in Boca Raton26
- Big 4 law firms in Buffalo26
- Big 4 law firms in Las Vegas26
- Big 4 law firms in Fort Worth25
- Big 4 law firms in Scottsdale25
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names big 4 law firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many big 4 law firms are there based in Houston, United States?
RevenueBase identified 163 big 4 law firms headquartered in Houston, 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?
Vinson & Elkins, headquartered in Houston, tops this list with the largest team on record.
Which city in the United States has the most big 4 law firms?
New York leads the United States with 536 headquartered companies, followed by Chicago (267) and Los Angeles (235). Houston has 163.
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 3,574 verified decision-maker contacts tracked across these 163 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 23, 2026.
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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 Smart Search, 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.