Company lists · Data refreshed September 2026

Top 25 International employment law firms based in the United States

RevenueBase identified 4,671 international employment law firms headquartered in the United States as of September 2026 and tracks 234,770 professional contacts across them, including 130,311 with verified work emails. New York is the largest hub.

This list covers international employment 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 28, 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 28, 2026 86% judged on-target in blind review
4,671Companies
234,770Contacts tracked
130,311Verified emails
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The 25 largest international employment law firms based in the United States

Ranked by team size
Top 25 of 4,671 international employment law firms based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to international employment 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceChicago, IL, United StatesHQ checked Sep 28, 202610001+9,815 contacts →

Indirect evidence

“Baker McKenzie empowers clients to compete in the global economy.”

Source: RevenueBase Database · checked Sep 28, 2026
2Partial evidenceNew York, United StatesHQ checked Sep 28, 20261,001-5,0008,191 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 28, 2026
3Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 20261,001-5,0007,485 contacts →

Partial evidence

“White & Case is a global law firm with longstanding offices in the markets that matter today.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceWashington, DC, United StatesHQ checked Sep 28, 20265,001-10,0005,941 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 28, 2026
5Partial evidenceChicago, IL, United StatesHQ checked Sep 28, 20261,001-5,0005,169 contacts →

Partial evidence

“Sidley is an elite global law firm.”

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidenceTampa, FL, United StatesHQ checked Sep 28, 20261,001-5,0004,317 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 28, 2026
7Strong evidenceChicago, IL, United StatesHQ checked Sep 28, 20261,001-5,0004,177 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 28, 2026
8Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 28, 20261,001-5,0003,735 contacts →

Partial evidence

“Gibson Dunn is a leading global law firm, advising clients on significant transactions and disputes.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceSeattle, WA, United StatesHQ checked Sep 28, 20261,001-5,0002,746 contacts →

Indirect evidence

“Perkins Coie has combined with Ashurst to form Ashurst Perkins Coie.”

Source: RevenueBase Database · checked Sep 28, 2026
10Strong evidenceAtlanta, GA, United StatesHQ checked Sep 28, 20261,001-5,0002,725 contacts →

Strong evidence

“King & Spalding is an international law firm that represents a broad array of clients, including half of the Fortune Global 100, with 1,300 lawyers in 26 offices in the United…”

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 20261,001-5,0002,721 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 28, 2026
12Strong evidenceAtlanta, GA, United StatesHQ checked Sep 28, 20261,001-5,0002,708 contacts →

Strong 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 28, 2026
13Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 20261,001-5,0002,555 contacts →

Strong evidence

“Littler is the largest global employment and labor law practice, representing management in all aspects of employment and labor law and serving as a single-source solution…”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidence20+ U.s. Offices, United StatesHQ checked Sep 28, 20261,001-5,0002,539 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 28, 2026
15Strong evidenceNew York, NY, United StatesHQ checked Sep 28, 20261,001-5,0002,488 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 28, 2026
16Partial evidenceAtlanta, GA, United StatesHQ checked Sep 28, 20261,001-5,0002,449 contacts →

Partial evidence

“At Alston & Bird, a leading international firm, our people trust the people they work for, take pride in what they do, enjoy the people they work with and serve the communities in…”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceWashington, DC, United StatesHQ checked Sep 28, 20261,001-5,0002,333 contacts →

Indirect evidence

“Arnold & Porter combines sophisticated regulatory, litigation, and transactional capabilities to resolve clients’ most complex issues.”

Source: RevenueBase Database · checked Sep 28, 2026
18Strong evidenceWashington, DC, United StatesHQ checked Sep 28, 20261,001-5,0002,333 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 28, 2026
19Strong evidenceNew York, United StatesHQ checked Sep 28, 20261,001-5,0002,285 contacts →

Strong evidence

“Focused on employment and labor law since 1958, Jackson Lewis P.C.’s attorneys located in major cities nationwide consistently identify and respond to new ways workplace law…”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 20261,001-5,0002,190 contacts →

Indirect evidence

“Willkie Farr & Gallagher LLP provides leading-edge legal solutions on complex, business critical issues spanning markets and industries.”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceManhattan, United StatesHQ checked Sep 28, 20261,001-5,0002,182 contacts →

Indirect evidence

“Sullivan & Cromwell LLP provides the highest quality legal advice and representation to clients around the world.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceChicago, IL, United StatesHQ checked Sep 28, 20261,001-5,0002,167 contacts →

Indirect evidence

“High stakes.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidencePhiladelphia, PA, United StatesHQ checked Sep 28, 20261,001-5,0002,139 contacts →

Indirect evidence

“With bold growth, Fox Rothschild brings together attorneys coast to coast.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 20261,001-5,0002,096 contacts →

Indirect evidence

“We are 800+ lawyers serving clients from offices located in the leading financial and business centers in the Americas, Europe and Asia.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceWashington, DC, United StatesHQ checked Sep 28, 20261,001-5,0002,073 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 28, 2026

Showing 25 of 4,671 international employment law firms based in the United States

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

As of Sep 28, 2026
55.5%Verified-email coverage
50.3Average contacts per company
1-10Median size (employees)
8.6%Largest-city concentration · New York
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
2,925
11-50
1,199
51-200
331
201-500
94
501-1,000
40
1,001-5,000
58
5,001-10,000
2
10001+
4

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 4,671 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 international employment 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 employment 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 employment 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 employment 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, 130,311 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 28, 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.

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 employment 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 employment law firms are there based in the United States?

RevenueBase identified 4,671 international employment 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 employment law firms?

New York leads with 404 headquartered companies, followed by Los Angeles (221) and Chicago (137).

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 130,311 verified decision-maker contacts tracked across these 4,671 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 28, 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.