Company lists · Data refreshed September 2026

Top 24 International business law firms based in the United States

Name: International business 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 4, 2026 10,903 companies tracked

RevenueBase identified 10,903 international business law firms headquartered in the United States as of September 2026 and tracks 351,427 professional contacts across them, including 187,340 with verified work emails and 166,291 with mobile numbers. New York is the largest hub.

This list covers international business 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 4, 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 4, 2026 86% judged on-target in blind review

10,903Companies

351,427Contacts tracked

187,340Verified emails

166,291Mobile numbers

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The 24 largest international business law firms based in the United States

Ranked by team size

Top 24 of 10,903 international business law firms based in the United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. RevenueBase Smart Search rates how each company's information relates to international business 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 4, 2026	10001+	9,837 contacts →
	Indirect evidence “Baker McKenzie empowers clients to compete in the global economy.” Source: RevenueBase Database · checked Sep 4, 2026
2	Sidley Austin LLP	Partial evidence	Chicago, TX, United StatesHQ checked Sep 4, 2026	1,001-5,000	5,122 contacts →
	Partial evidence “Sidley is an elite global law firm.” Source: RevenueBase Database · checked Sep 4, 2026
3	Morgan, Lewis & Bockius LLP	Partial evidence	Philadelphia, CA, United StatesHQ checked Sep 4, 2026	1,001-5,000	4,818 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 4, 2026
4	Mayer Brown	Strong evidence	Chicago, TX, United StatesHQ checked Sep 4, 2026	1,001-5,000	4,209 contacts →
	Strong 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 4, 2026
5	Simpson Thacher & Bartlett LLP	Strong evidence	New York, NY, United StatesHQ checked Sep 4, 2026	1,001-5,000	3,409 contacts →
	Strong evidence “Simpson Thacher & Bartlett LLP is one of the world’s leading international law firms.” Source: RevenueBase Database · checked Sep 4, 2026
6	Squire Patton Boggs	Partial evidence	Cleveland, CA, United StatesHQ checked Sep 4, 2026	1,001-5,000	3,335 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 4, 2026
7	Cooley LLP	Indirect evidence	Palo Alto, CA, United StatesHQ checked Sep 4, 2026	1,001-5,000	3,314 contacts →
	Indirect evidence “Clients partner with Cooley on transformative deals, complex IP and regulatory matters, and high-stakes litigation.” Source: RevenueBase Database · checked Sep 4, 2026
8	Despacho DE Abogados	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 4, 2026	1,001-5,000	3,244 contacts →
	Indirect evidence “The Gold Group is a top producing team within Keller Williams Beverly Hills family.” Source: RevenueBase Database · checked Sep 4, 2026
9	Paul Hastings	Indirect evidence	Worldwide, CA, United StatesHQ checked Sep 4, 2026	1,001-5,000	3,028 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 4, 2026
10	Gordon Rees Scully Mansukhani, LLP	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,807 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 4, 2026
11	Davis Polk & Wardwell LLP	Partial evidence	New York, NY, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,764 contacts →
	Partial evidence “Davis Polk & Wardwell LLP (including its associated entities) is an elite global law firm with world-class practices across the board.” Source: RevenueBase Database · checked Sep 4, 2026
12	Perkins Coie	Indirect evidence	Seattle, WI, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,734 contacts →
	Indirect evidence “Perkins Coie has combined with Ashurst to form Ashurst Perkins Coie.” Source: RevenueBase Database · checked Sep 4, 2026
13	Ogletree Deakins	Partial evidence	Atlanta, SC, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,716 contacts →
	Partial evidence “Ogletree Deakins is one of the largest labor and employment law firms representing management in all types of employment-related legal matters.” Source: RevenueBase Database · checked Sep 4, 2026
14	Morrison Foerster	Indirect evidence	San Francisco, DC, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,660 contacts →
	Indirect evidence “Morrison Foerster transforms complexity into advantage.” Source: RevenueBase Database · checked Sep 4, 2026
15	Paul, Weiss, Rifkind, Wharton & Garrison LLP	Partial evidence	New York, NY, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,652 contacts →
	Partial evidence “Paul, Weiss, Rifkind, Wharton & Garrison LLP is a global law firm of more than 1,500 lawyers focused on helping clients navigate their most complex legal and business challenges.” Source: RevenueBase Database · checked Sep 4, 2026
16	Husch Blackwell	Partial evidence	20+ U.s. Offices, TX, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,516 contacts →
	Partial evidence “Husch Blackwell is a different kind of law firm–structured around our clients’ industries and built on a culture of selfless service.” Source: RevenueBase Database · checked Sep 4, 2026
17	Cleary Gottlieb Steen & Hamilton LLP	Strong evidence	New York, CA, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,485 contacts →
	Strong evidence “Cleary Gottlieb is a leading international law firm, with 14 offices located in major financial centers around the world, that has helped shape the globalization of the legal…” Source: RevenueBase Database · checked Sep 4, 2026
18	Wilmerhale	Strong evidence	Washington, CO, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,329 contacts →
	Strong evidence “Wilmer Cutler Pickering Hale and Dorr LLP (WilmerHale) is a leading international law firm with more than 1,200 lawyers located throughout 12 offices in the United States and…” Source: RevenueBase Database · checked Sep 4, 2026
19	Arnold & Porter	Indirect evidence	Washington, DC, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,324 contacts →
	Indirect evidence “Arnold & Porter combines sophisticated regulatory, litigation, and transactional capabilities to resolve clients’ most complex issues.” Source: RevenueBase Database · checked Sep 4, 2026
20	Winston & Strawn LLP	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,197 contacts →
	Indirect evidence “On June 1, 2026, Winston & Strawn and Taylor Wessing’s U.K-led business officially launched as a single combined firm, creating Winston Taylor.” Source: RevenueBase Database · checked Sep 4, 2026
21	Sullivan & Cromwell LLP	Indirect evidence	Manhattan, CA, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,181 contacts →
	Indirect evidence “Sullivan & Cromwell LLP provides the highest quality legal advice and representation to clients around the world.” Source: RevenueBase Database · checked Sep 4, 2026
22	Seyfarth Shaw LLP	Indirect evidence	Chicago, NC, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,176 contacts →
	Indirect evidence “High stakes.” Source: RevenueBase Database · checked Sep 4, 2026
23	FOX Rothschild	Indirect evidence	Philadelphia, FL, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,161 contacts →
	Indirect evidence “With bold growth, Fox Rothschild brings together attorneys coast to coast.” Source: RevenueBase Database · checked Sep 4, 2026
24	Bakerhostetler	Partial evidence	Washington, CO, United StatesHQ checked Sep 4, 2026	1,001-5,000	2,097 contacts →
	Partial evidence “Recognized as one of the top firms for client service and quality of legal services, BakerHostetler is a leading law firm that helps clients around the world address their most…” Source: RevenueBase Database · checked Sep 4, 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: international business 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 international business law firms.
Partial evidence: Its own public description names part of international business law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name international business 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 24 of 10,903 international business law firms based in the United States

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International business law firms based in the United States at a glance

As of Sep 4, 2026

53.3%Verified-email coverage

47.3%Mobile-number coverage

32.2Average contacts per company

1-10Median size (employees)

7.6%Largest-city concentration · New York

Sep 4, 2026Page data refreshed

Companies by employee count

1-10

6,913

11-50

2,852

51-200

761

201-500

165

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

16,39131–60

99,40861–90

70,57790–180

964180+

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 international business 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 “international business 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 international business 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 international business 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, 187,340 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 4, 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.

International business 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 international business 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 international business law firms are there based in the United States?

RevenueBase identified 10,903 international business 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 international business law firms?

New York leads with 825 headquartered companies, followed by Chicago (321) and Los Angeles (302).

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 187,340 verified decision-maker contacts tracked across these 10,903 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 4, 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.