Company lists · Data refreshed September 2026

Top 25 Big law firms based in the United States

Name: Big law firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 16,675 companies tracked

RevenueBase identified 16,675 big law firms headquartered in the United States as of September 2026 and tracks 569,274 professional contacts across them, including 321,932 with verified work emails and 286,627 with mobile numbers. New York is the largest hub.

This list covers big law firms headquartered in the 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 23, 2026 86% judged on-target in blind review

16,675Companies

569,274Contacts tracked

321,932Verified emails

286,627Mobile numbers

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The 25 largest big law firms based in the United States

Ranked by team size

Top 25 of 16,675 big law firms based in the United States, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to big law firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Baker Mckenzie	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	10001+	9,815 contacts →
	Indirect evidence “Baker McKenzie empowers clients to compete in the global economy.” Source: RevenueBase Database · checked Sep 23, 2026
2	Kirkland & Ellis	Partial evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	5,001-10,000	8,449 contacts →
	Partial evidence “As one of the world’s leading law firms, we serve a broad range of clients with market-leading practices in private equity, M&A and other complex corporate transactions…” Source: RevenueBase Database · checked Sep 23, 2026
3	Latham & Watkins	Partial evidence	New York, United StatesHQ checked Sep 23, 2026	1,001-5,000	8,191 contacts →
	Partial evidence “Latham & Watkins is a global law firm with more than 3,500 lawyers in its offices located in Asia, Europe, the Middle East and the United States.” Source: RevenueBase Database · checked Sep 23, 2026
4	White & Case LLP	Partial evidence	New York, NY, United StatesHQ checked Sep 23, 2026	1,001-5,000	7,485 contacts →
	Partial evidence “White & Case is a global law firm with longstanding offices in the markets that matter today.” Source: RevenueBase Database · checked Sep 23, 2026
5	Jones DAY	Indirect evidence	Washington, DC, United StatesHQ checked Sep 23, 2026	5,001-10,000	5,941 contacts →
	Indirect evidence “With its singular tradition and widely recognized record of client service, Jones Day provides formidable legal talent across multiple disciplines and jurisdictions through the…” Source: RevenueBase Database · checked Sep 23, 2026
6	Greenberg Traurig, LLP	Indirect evidence	New York, NY, United StatesHQ checked Sep 23, 2026	1,001-5,000	5,325 contacts →
	Indirect evidence “Greenberg Traurig, LLP has more than 3,200 lawyers across 51 locations in the United States, Europe, the Middle East, Latin America, and Asia.” Source: RevenueBase Database · checked Sep 23, 2026
7	Sidley Austin LLP	Partial evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	1,001-5,000	5,169 contacts →
	Partial evidence “Sidley is an elite global law firm.” Source: RevenueBase Database · checked Sep 23, 2026
8	K&l Gates	Indirect evidence	Pittsburgh, PA, United StatesHQ checked Sep 23, 2026	1,001-5,000	4,861 contacts →
	Indirect evidence “At K&L Gates, we foster an inclusive and collaborative environment across our fully integrated global platform that enables us to diligently combine the knowledge and expertise of…” Source: RevenueBase Database · checked Sep 23, 2026
9	Morgan, Lewis & Bockius LLP	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 23, 2026	1,001-5,000	4,832 contacts →
	Partial evidence “From our offices in strategic hubs of commerce, law, and government across North America, Asia, Europe, and the Middle East, we work with clients ranging from established, global…” Source: RevenueBase Database · checked Sep 23, 2026
10	Skadden, Arps, Slate, Meagher & Flom LLP And Affiliates	Indirect evidence	New York, NY, United StatesHQ checked Sep 23, 2026	1,001-5,000	4,540 contacts →
	Indirect evidence “Skadden, Arps, Slate, Meagher & Flom LLP and Affiliates delivers the highest quality advice and novel solutions to legal challenges, enabling clients to achieve their business…” Source: RevenueBase Database · checked Sep 23, 2026
11	Holland & Knight LLP	Partial evidence	Tampa, FL, United StatesHQ checked Sep 23, 2026	1,001-5,000	4,317 contacts →
	Partial evidence “Holland & Knight is a global law firm with more than 2,200 lawyers and other professionals in 35 offices throughout the world.” Source: RevenueBase Database · checked Sep 23, 2026
12	Mayer Brown	Partial evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	1,001-5,000	4,177 contacts →
	Partial evidence “Mayer Brown is a leading international law firm, positioned to represent the world’s major corporations, funds and financial institutions in their most important and complex…” Source: RevenueBase Database · checked Sep 23, 2026
13	Gibson Dunn	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 2026	1,001-5,000	3,735 contacts →
	Partial evidence “Gibson Dunn is a leading global law firm, advising clients on significant transactions and disputes.” Source: RevenueBase Database · checked Sep 23, 2026
14	Goodwin	Indirect evidence	Boston, MA, United StatesHQ checked Sep 23, 2026	5,001-10,000	3,582 contacts →
	Indirect evidence “At Goodwin, we live your business.” Source: RevenueBase Database · checked Sep 23, 2026
15	Ropes & Gray LLP	Partial evidence	New York, NY, United StatesHQ checked Sep 23, 2026	1,001-5,000	3,515 contacts →
	Partial evidence “Ropes & Gray, a preeminent, global law firm, has been ranked in the top-three on The American Lawyer's prestigious "A-List" for eight consecutive years and listed on Law.com’s UK…” Source: RevenueBase Database · checked Sep 23, 2026
16	Simpson Thacher & Bartlett LLP	Partial evidence	New York, NY, United StatesHQ checked Sep 23, 2026	1,001-5,000	3,429 contacts →
	Partial evidence “Simpson Thacher & Bartlett LLP is one of the world’s leading international law firms.” Source: RevenueBase Database · checked Sep 23, 2026
17	Squire Patton Boggs	Partial evidence	Cleveland, OH, United StatesHQ checked Sep 23, 2026	1,001-5,000	3,343 contacts →
	Partial evidence “Squire Patton Boggs is a full service global law firm providing insight at the point where law, business and government meet, giving you a voice, supporting your ambitions and…” Source: RevenueBase Database · checked Sep 23, 2026
18	Cooley LLP	Indirect evidence	Palo Alto, CA, United StatesHQ checked Sep 23, 2026	1,001-5,000	3,341 contacts →
	Indirect evidence “Clients partner with Cooley on transformative deals, complex IP and regulatory matters, and high-stakes litigation.” Source: RevenueBase Database · checked Sep 23, 2026
19	Despacho DE Abogados	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 2026	1,001-5,000	3,245 contacts →
	Indirect evidence “The Gold Group is a top producing team within Keller Williams Beverly Hills family.” Source: RevenueBase Database · checked Sep 23, 2026
20	Lewis Brisbois	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 2026	1,001-5,000	3,079 contacts →
	Partial evidence “Established in 1979, Lewis Brisbois Bisgaard & Smith LLP is a national, full-service law firm with more than 1,600 attorneys and 54 offices in 30 states and the District of…” Source: RevenueBase Database · checked Sep 23, 2026
21	Orrick, Herrington & Sutcliffe LLP	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 23, 2026	1,001-5,000	3,066 contacts →
	Partial evidence “Orrick is a global law firm focused on serving the Technology & Innovation, Energy & Infrastructure, Finance and Life Sciences & HealthTech sectors.” Source: RevenueBase Database · checked Sep 23, 2026
22	Paul Hastings	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 2026	1,001-5,000	3,045 contacts →
	Indirect evidence “With widely recognized elite teams in finance, mergers & acquisitions, private equity, restructuring and special situations, litigation, employment and real estate, Paul Hastings…” Source: RevenueBase Database · checked Sep 23, 2026
23	Foley & Lardner LLP	Indirect evidence	Milwaukee, WI, United StatesHQ checked Sep 23, 2026	1,001-5,000	2,884 contacts →
	Indirect evidence “Foley & Lardner LLP stands at the nexus of the Energy & Infrastructure, Health Care & Life Sciences, Innovative Technology, and Manufacturing Sectors.” Source: RevenueBase Database · checked Sep 23, 2026
24	Gordon Rees Scully Mansukhani, LLP	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 23, 2026	1,001-5,000	2,846 contacts →
	Partial evidence “As the only full-service law firm with offices and attorneys in all 50 states, Gordon Rees Scully Mansukhani delivers maximum value to our clients by combining the resources of a…” Source: RevenueBase Database · checked Sep 23, 2026
25	Perkins Coie	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 23, 2026	1,001-5,000	2,746 contacts →
	Indirect evidence “Perkins Coie has combined with Ashurst to form Ashurst Perkins Coie.” Source: RevenueBase Database · checked Sep 23, 2026

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 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 law firms.
Partial evidence: Its own public description names part of big 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 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 16,675 big law firms based in the United States

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Big law firms based in the United States at a glance

As of Sep 23, 2026

56.6%Verified-email coverage

50.3%Mobile-number coverage

34.1Average contacts per company

1-10Median size (employees)

7.3%Largest-city concentration · New York

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

12,144

11-50

5,664

51-200

1,513

201-500

273

501-1,000

113

1,001-5,000

127

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 26.0d

244,4190–30

70,52731–60

5,11361–90

33090–180

1,543180+

Company record updated

Median 83.0d

00–30

202,75631–60

268,18361–90

73,44590–180

24,890180+

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 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 the United States whose own description of what they do matches “big 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 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 law firms, and records with no verified work email. Companies headquartered outside United States 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, 321,932 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 law firms by metro

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 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 law firms are there based in the United States?

RevenueBase identified 16,675 big law firms headquartered in the 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?

Baker Mckenzie, headquartered in Chicago, tops this list with the largest team on record.

Which city has the most big law firms?

New York leads with 1216 headquartered companies, followed by Los Angeles (580) and Chicago (540).

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 321,932 verified decision-maker contacts tracked across these 16,675 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.