Company lists · Data refreshed September 2026

Top 25 Big 5 law firms based in the United States

Name: Big 5 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 10,835 companies tracked

RevenueBase identified 10,835 company matches for big 5 law firms associated with the United States as of September 2026 and tracks 491,628 professional contacts across them, including 281,056 with verified work emails and 253,243 with mobile numbers. New York is the largest hub.

This list covers company matches for big 5 law firms associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 23, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 23, 2026 How this list was built

10,835Companies

491,628Contacts tracked

281,056Verified emails

253,243Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest big 5 law firms based in the United States

Ranked by team size

Top 25 of 10,835 company matches for big 5 law firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 23, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Baker Mckenzie	Exact match	Chicago, IL, United StatesHQ recorded Sep 23, 2026	10001+	9,815 contacts →
	Exact match “Baker McKenzie empowers clients to compete in the global economy.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
2	Kirkland & Ellis	Exact match	Chicago, IL, United StatesHQ recorded Sep 23, 2026	5,001-10,000	8,449 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
3	Latham & Watkins	Exact match	New York, United StatesHQ recorded Sep 23, 2026	1,001-5,000	8,191 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
4	White & Case LLP	Exact match	New York, NY, United StatesHQ recorded Sep 23, 2026	1,001-5,000	7,485 contacts →
	Exact match “White & Case is a global law firm with longstanding offices in the markets that matter today.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
5	Jones DAY	Exact match	Washington, DC, United StatesHQ recorded Sep 23, 2026	5,001-10,000	5,941 contacts →
	Exact match “With its singular tradition and widely recognized record of client service, Jones Day provides formidable legal talent across multiple disciplines and jurisdictions through the…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
6	Greenberg Traurig, LLP	Exact match	New York, NY, United StatesHQ recorded Sep 23, 2026	1,001-5,000	5,325 contacts →
	Exact match “Greenberg Traurig, LLP has more than 3,200 lawyers across 51 locations in the United States, Europe, the Middle East, Latin America, and Asia.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
7	Sidley Austin LLP	Exact match	Chicago, IL, United StatesHQ recorded Sep 23, 2026	1,001-5,000	5,169 contacts →
	Exact match “Sidley is an elite global law firm.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
8	K&l Gates	Exact match	Pittsburgh, PA, United StatesHQ recorded Sep 23, 2026	1,001-5,000	4,861 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
9	Morgan, Lewis & Bockius LLP	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 23, 2026	1,001-5,000	4,832 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
10	Skadden, Arps, Slate, Meagher & Flom LLP And Affiliates	Exact match	New York, NY, United StatesHQ recorded Sep 23, 2026	1,001-5,000	4,540 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
11	Holland & Knight LLP	Exact match	Tampa, FL, United StatesHQ recorded Sep 23, 2026	1,001-5,000	4,317 contacts →
	Exact match “Holland & Knight is a global law firm with more than 2,200 lawyers and other professionals in 35 offices throughout the world.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
12	Mayer Brown	Exact match	Chicago, IL, United StatesHQ recorded Sep 23, 2026	1,001-5,000	4,177 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
13	Gibson Dunn	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 23, 2026	1,001-5,000	3,735 contacts →
	Exact match “Gibson Dunn is a leading global law firm, advising clients on significant transactions and disputes.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
14	Goodwin	Exact match	Boston, MA, United StatesHQ recorded Sep 23, 2026	5,001-10,000	3,582 contacts →
	Exact match “At Goodwin, we live your business.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
15	Ropes & Gray LLP	Exact match	New York, NY, United StatesHQ recorded Sep 23, 2026	1,001-5,000	3,515 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
16	Simpson Thacher & Bartlett LLP	Exact match	New York, NY, United StatesHQ recorded Sep 23, 2026	1,001-5,000	3,429 contacts →
	Exact match “Simpson Thacher & Bartlett LLP is one of the world’s leading international law firms.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
17	Squire Patton Boggs	Exact match	Cleveland, OH, United StatesHQ recorded Sep 23, 2026	1,001-5,000	3,343 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
18	Cooley LLP	Exact match	Palo Alto, CA, United StatesHQ recorded Sep 23, 2026	1,001-5,000	3,341 contacts →
	Exact match “Clients partner with Cooley on transformative deals, complex IP and regulatory matters, and high-stakes litigation.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
19	Despacho DE Abogados	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 23, 2026	1,001-5,000	3,245 contacts →
	Exact match “The Gold Group is a top producing team within Keller Williams Beverly Hills family.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
20	Lewis Brisbois	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 23, 2026	1,001-5,000	3,079 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
21	Orrick, Herrington & Sutcliffe LLP	Exact match	San Francisco, CA, United StatesHQ recorded Sep 23, 2026	1,001-5,000	3,066 contacts →
	Exact match “Orrick is a global law firm focused on serving the Technology & Innovation, Energy & Infrastructure, Finance and Life Sciences & HealthTech sectors.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
22	Paul Hastings	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 23, 2026	1,001-5,000	3,045 contacts →
	Exact match “With widely recognized elite teams in finance, mergers & acquisitions, private equity, restructuring and special situations, litigation, employment and real estate, Paul Hastings…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
23	Foley & Lardner LLP	Exact match	Milwaukee, WI, United StatesHQ recorded Sep 23, 2026	1,001-5,000	2,884 contacts →
	Exact match “Foley & Lardner LLP stands at the nexus of the Energy & Infrastructure, Health Care & Life Sciences, Innovative Technology, and Manufacturing Sectors.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
24	Gordon Rees Scully Mansukhani, LLP	Exact match	San Francisco, CA, United StatesHQ recorded Sep 23, 2026	1,001-5,000	2,846 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
25	Perkins Coie	Exact match	Seattle, WA, United StatesHQ recorded Sep 23, 2026	1,001-5,000	2,746 contacts →
	Exact match “Perkins Coie has combined with Ashurst to form Ashurst Perkins Coie.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “big 5 law firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 10,835 big 5 law firms based in the United States

See the full list, filter by size, metro and specialty, and access 281,056 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Big 5 law firms based in the United States at a glance

As of Sep 23, 2026

57.2%Verified-email coverage

51.5%Mobile-number coverage

45.4Average contacts per company

1-10Median size (employees)

9.6%Largest-city concentration · New York

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

10,273

11-50

5,186

51-200

1,448

201-500

267

501-1,000

110

1,001-5,000

124

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

213,3510–30

61,60631–60

4,44961–90

29090–180

1,360180+

Company record updated

Median 83.0d

00–30

177,89031–60

232,41861–90

60,08890–180

21,232180+

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United States whose business descriptions match “big 5 law firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 281,056 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Big 5 law firms by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “big 5 law firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many big 5 law firms are there based in the United States?

RevenueBase identified 10,835 company matches for big 5 law firms associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Baker Mckenzie tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most big 5 law firms?

New York leads with 1038 company records, followed by Chicago (492) and Los Angeles (477).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 281,056 professional contacts with verified work emails tracked across these 10,835 companies; direct dials are available where recorded.

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.

Ready to reach these companies? Verified emails and direct dials for all 10,835 big 5 law firms based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Big 5 law firms by geography

Browse the directory

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 SmartSearch, 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.