Company lists · Data verified August 2026

Top 25 Law firms based in Washington, United States

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 533 companies tracked

This directory lists 533 law firms based in Washington, United States, with 22,349 professional contacts and 12,115 email addresses. As of August 2026, New York is the single most-represented city among the companies listed.

Law firms are professional service organizations that provide legal advice, representation, and related services through licensed attorneys. This list covers companies that provide legal advice, legal representation, or related legal services through licensed attorneys. Ranked by team size, largest first. Data current as of August 28, 2026.

533Companies

22,349Contacts tracked

12,115Verified emails

11,631Mobile numbers

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The 25 largest law firms based in Washington, United States

Ranked by team size

Top 25 of 533 law firms based in Washington, United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Morrison Foerster	Washington, DC	1,001-5,000	2,660	1,590
2	Arnold & Porter	Washington, DC	1,001-5,000	2,324	1,648
3	Venable LLP	Washington, DC	1,001-5,000	1,791	1,184
4	Finnegan, Henderson, Farabow, Garrett & Dunner, LLP	Washington, DC	501-1,000	942	534
5	Adams & Reese	Washington, DC	501-1,000	766	356
6	Bass, Berry & Sims	Washington, DC	501-1,000	576	401
7	Wiley Rein LLP	Washington, DC	501-1,000	576	395
8	Goulston & Storrs	Washington, DC	201-500	494	419
9	Schulte Roth & Zabel LLP	Washington, DC	501-1,000	479	1
10	Sterne, Kessler, Goldstein & FOX	Washington, DC	201-500	474	309
11	Arnall Golden Gregory LLP	Washington, DC	201-500	440	287
12	Williams & Connolly LLP	Washington, DC	501-1,000	424	318
13	Sullivan & Worcester LLP	Washington, DC	201-500	356	202
14	Robbins Geller Rudman & Dowd LLP	Washington, DC	201-500	339	220
15	Beveridge & Diamond PC	Washington, DC	201-500	324	236
16	Gibbons P.C	Washington, DC	201-500	319	192
17	Dickstein Shapiro LLP	Washington, DC	501-1,000	292	52
18	Hausfeld	Washington, DC	201-500	267	207
19	Tully Rinckey Pllc	Washington, DC	51-200	230	157
20	Kellogg, Hansen, Todd, Figel & Frederick Pllc	Washington, DC	51-200	219	132
21	Bose Mckinney & Evans LLP	Washington, DC	201-500	213	155
22	Preti Flaherty	Washington, DC	201-500	198	130
23	The Cochran Firm	Washington, DC	51-200	184	2
24	Semmes, Bowen & Semmes	Washington, DC	51-200	172	73
25	Consilio Services LLC	Washington, DC	1,001-5,000	167	38

Showing 25 of 533 law firms based in Washington, United States

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Law firms based in Washington, United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 2060 HQs

11,631Contacts with mobile numbers

59Emails re-verified in last 30 days

Companies by employee count

1-10

333

11-50

130

51-200

201-500

501-1,000

1,001-5,000

Law firms by metro in the United States

Metro	Companies
Law firms in New York	2060
Law firms in Los Angeles	993
Law firms in Chicago	956
Law firms in Houston	948
Law firms in Atlanta	668
Law firms in Dallas	655
Law firms in Miami	636
Law firms in Washington	552

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “law firms”, with match quality audited by blind human judging, and headquartered in Washington, United States.
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: Contact records re-verify on a rolling cadence; 59 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many law firms are listed based in Washington, United States?

The directory includes 533 law firms based in Washington, United States as of August 2026.

Where are most of the listed law firms located?

New York is the single most-represented city among the law firms on the list.

How many contacts and email addresses are available for these law firms?

The list includes 22,349 professional contacts and 12,115 email addresses for the listed law firms.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.