Company lists · Data refreshed September 2026

Top 25 International employment law firms based in Washington, United States

Name: International employment law firms based in Washington, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 126 companies tracked

RevenueBase identified 126 international employment law firms headquartered in Washington, United States as of September 2026 and tracks 26,495 professional contacts across them, including 14,849 with verified work emails. Across the United States, New York is the largest hub for this category (404 companies); Washington has 126.

This list covers international employment law firms headquartered in Washington, 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

126Companies

26,495Contacts tracked

14,849Verified emails

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The 25 largest international employment law firms based in Washington, United States

Ranked by team size

Top 25 of 126 international employment law firms based in Washington, 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Jones DAY	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 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 28, 2026
2	Arnold & Porter	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,333 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
3	Wilmerhale	Strong evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,333 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
4	Bakerhostetler	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,073 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
5	Crowell & Moring	Strong evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,602 contacts →
	Strong evidence “Crowell & Moring is an international law firm with operations in the United States, Europe, MENA, and Asia.” Source: RevenueBase Database · checked Sep 28, 2026
6	Steptoe LLP	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,207 contacts →
	Partial evidence “In more than 100 years of practice, Steptoe* has earned an international reputation for vigorous representation of clients before governmental agencies, successful advocacy in…” Source: RevenueBase Database · checked Sep 28, 2026
7	Williams & Connolly LLP	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	501-1,000	425 contacts →
	Indirect evidence “Williams & Connolly is recognized as one of the world’s premier litigation firms.” Source: RevenueBase Database · checked Sep 28, 2026
8	Dickstein Shapiro LLP	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	501-1,000	292 contacts →
	Partial evidence “Dickstein Shapiro LLP, Market Leading Specialty Firm (SM), is internationally recognized for its work with clients, from start-ups to Fortune 500 corporations.” Source: RevenueBase Database · checked Sep 28, 2026
9	Hausfeld	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	201-500	267 contacts →
	Indirect evidence “Hausfeld successfully resolves disputes for its clients, driven by its bold approach and pioneering experience.” Source: RevenueBase Database · checked Sep 28, 2026
10	Consilio Services LLC	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1,001-5,000	168 contacts →
	Partial evidence “It all starts with our mission: To be a trusted advisor that brings expertise to tackle any legal challenge that multinational corporations and law firms face, whenever and…” Source: RevenueBase Database · checked Sep 28, 2026
11	Cassidy Levy Kent	Strong evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	51-200	79 contacts →
	Strong evidence “Cassidy Levy Kent (CLK) is an international law firm that focuses on legal and policy issues raised by cross-border transactions, trade controls, trade remedy litigation…” Source: RevenueBase Database · checked Sep 28, 2026
12	Lewis Baach Kaufmann Middlemiss Pllc	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	64 contacts →
	Partial evidence “Lewis Baach Kaufmann Middlemiss is a premier international firm with extensive practices in insurance, reinsurance, international financial disputes and global commercial…” Source: RevenueBase Database · checked Sep 28, 2026
13	The Employment LAW Group, P.C	Strong evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	51-200	55 contacts →
	Strong evidence “The Employment Law Group® law firm is a litigation boutique concentrating on the representation of employees and whistleblowers.” Source: RevenueBase Database · checked Sep 28, 2026
14	Maggio Kattar Nahajzer Alexander PC	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	55 contacts →
	Partial evidence “Maggio Kattar has been recognized as one of the top Immigration Law firms in the U.S.” Source: RevenueBase Database · checked Sep 28, 2026
15	Grossman Young & Hammond, LLC	Strong evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	50 contacts →
	Strong evidence “Grossman Young & Hammond (GYH) is an internationally recognized, woman-owned law firm providing the full spectrum of immigration services, from employment- and family-based…” Source: RevenueBase Database · checked Sep 28, 2026
16	Conn Maciel Carey LLP	Strong evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	46 contacts →
	Strong evidence “Conn Maciel Carey LLP is a boutique law firm focused on Labor & Employment, Workplace Safety - OSHA/MSHA, and Litigation.” Source: RevenueBase Database · checked Sep 28, 2026
17	Berliner Corcoran & Rowe LLP	Strong evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	44 contacts →
	Strong evidence “Berliner Corcoran & Rowe LLP is a boutique law firm focused on international law, export controls/sanctions/customs/OFAC/CFIUS, litigation, corporate and intellectual property law.” Source: RevenueBase Database · checked Sep 28, 2026
18	Katz Banks Kumin LLP	Strong evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	42 contacts →
	Strong evidence “The lawyers of Katz Banks Kumin are nationally recognized leaders in the areas of whistleblower law, discrimination and sexual harassment law, wage and hour law, employment law…” Source: RevenueBase Database · checked Sep 28, 2026
19	O'donoghue & O'donoghue LLP	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	35 contacts →
	Partial evidence “O'Donoghue & O'Donoghue LLP is one of the largest and oldest union-side law firms in the United States, with offices in Washington, D.C, Philadelphia, Pennsylvania, and Annapolis…” Source: RevenueBase Database · checked Sep 28, 2026
20	Federal Practice Group, LLP	Strong evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	33 contacts →
	Strong evidence “Federal Practice Group is a nationally recognized law firm specializing in federal employment, military law, government contracts, security clearance, litigation, and more.” Source: RevenueBase Database · checked Sep 28, 2026
21	Picard Kentz & Rowe LLP	Strong evidence	Washington, United StatesHQ checked Sep 28, 2026	11-50	28 contacts →
	Strong evidence “Picard Kentz & Rowe is a firm expert in international law, international litigation and arbitration, international trade and investment, and advocacy on behalf of clients…” Source: RevenueBase Database · checked Sep 28, 2026
22	Slevin & Hart P.C	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	51-200	26 contacts →
	Indirect evidence “Slevin & Hart, P.C.” Source: RevenueBase Database · checked Sep 28, 2026
23	Trister, Ross, Schadler & Gold, Pllc	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	26 contacts →
	Indirect evidence “Trister, Ross, Schadler & Gold, PLLC combines personalized client service with decades of broad experience and specialized legal expertise.” Source: RevenueBase Database · checked Sep 28, 2026
24	GKG Law, P.C	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	26 contacts →
	Partial evidence “Beginning in 1955, GKG Law remains dedicated to crafting the best approach to meet our clients’ needs.” Source: RevenueBase Database · checked Sep 28, 2026
25	NT Lakis	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	24 contacts →
	Indirect evidence “Business-minded lawyers helping employers manage workplace risk.” Source: RevenueBase Database · checked Sep 28, 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 employment 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 employment law firms.
Partial evidence: Its own public description names part of international employment 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 employment 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 126 international employment law firms based in Washington, United States

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International employment law firms based in Washington, United States at a glance

As of Sep 28, 2026

56.0%Verified-email coverage

210.3Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency for this list is measured across the whole United States list rather than for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 126 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 Washington, 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 Washington 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, 14,849 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.

International employment law firms by metro in the United States

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 Washington, United States?

RevenueBase identified 126 international employment law firms headquartered in Washington, 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?

Jones DAY, headquartered in Washington, tops this list with the largest team on record.

Which city in the United States has the most international employment law firms?

New York leads the United States with 404 headquartered companies, followed by Los Angeles (221) and Chicago (137). Washington has 126.

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 14,849 verified decision-maker contacts tracked across these 126 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.