Company lists · Data refreshed 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 Data refreshed Aug 31, 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 31, 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 RevenueBase Smart Search rating on every row Refreshed Aug 31, 2026 86% judged on-target in blind review

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 refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to 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	Morrison Foerster	Indirect evidence	Washington, DC, United States	1,001-5,000	2,660 contacts →
	Indirect evidence “Morrison Foerster transforms complexity into advantage.” Source: RevenueBase Database · checked Aug 31, 2026
2	Arnold & Porter	Indirect evidence	Washington, DC, United States	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 Aug 31, 2026
3	Venable LLP	Strong evidence	Washington, DC, United States	1,001-5,000	1,791 contacts →
	Strong evidence “Committed to Your Success – As a law firm of more than 900 professionals, Venable delivers legal services globally in every area of regulatory compliance, government affairs…” Source: RevenueBase Database · checked Aug 31, 2026
4	Finnegan, Henderson, Farabow, Garrett & Dunner, LLP	Indirect evidence	Washington, DC, United States	501-1,000	942 contacts →
	Indirect evidence “When your most valuable assets are ideas, innovation, and brand-you need the best.” Source: RevenueBase Database · checked Aug 31, 2026
5	Adams & Reese	Indirect evidence	Washington, DC, United States	501-1,000	766 contacts →
	Indirect evidence “At Adams & Reese, we take things personally.” Source: RevenueBase Database · checked Aug 31, 2026
6	Bass, Berry & Sims	Strong evidence	Washington, DC, United States	501-1,000	576 contacts →
	Strong evidence “Bass, Berry & Sims is an independent, nationally recognized law firm dedicated to helping clients go confidently through complex legal challenges.” Source: RevenueBase Database · checked Aug 31, 2026
7	Wiley Rein LLP	Indirect evidence	Washington, DC, United States	501-1,000	576 contacts →
	Indirect evidence “Founded in 1983, Wiley is a dominant presence in the nation’s capital.” Source: RevenueBase Database · checked Aug 31, 2026
8	Goulston & Storrs	Indirect evidence	Washington, DC, United States	201-500	494 contacts →
	Indirect evidence “Collaboration is not just a pillar of our strategy; it is the key to our competitive advantage and approach to clients, community, and each other.” Source: RevenueBase Database · checked Aug 31, 2026
9	Schulte Roth & Zabel LLP	Indirect evidence	Washington, DC, United States	501-1,000	479 contacts →
	Indirect evidence “We are now McDermott Will & Schulte.” Source: RevenueBase Database · checked Aug 31, 2026
10	Sterne, Kessler, Goldstein & FOX	Strong evidence	Washington, DC, United States	201-500	474 contacts →
	Strong evidence “Sterne, Kessler, Goldstein & Fox is a full-service intellectual property law firm that provides innovative solutions tailored to your business and industry.” Source: RevenueBase Database · checked Aug 31, 2026
11	Arnall Golden Gregory LLP	Strong evidence	Washington, DC, United States	201-500	440 contacts →
	Strong evidence “Arnall Golden Gregory (AGG) is an Am Law 200 law firm with offices in Atlanta and Washington, DC.” Source: RevenueBase Database · checked Aug 31, 2026
12	Williams & Connolly LLP	Indirect evidence	Washington, DC, United States	501-1,000	424 contacts →
	Indirect evidence “Williams & Connolly is recognized as one of the world’s premier litigation firms.” Source: RevenueBase Database · checked Aug 31, 2026
13	Sullivan & Worcester LLP	Strong evidence	Washington, DC, United States	201-500	356 contacts →
	Strong evidence “As an international law firm with innovation in our DNA, we attract clients that are visionaries, trailblazers and game changers.” Source: RevenueBase Database · checked Aug 31, 2026
14	Robbins Geller Rudman & Dowd LLP	Indirect evidence	Washington, DC, United States	201-500	339 contacts →
	Indirect evidence “Robbins Geller Rudman & Dowd LLP is one of the world’s leading complex class action firms representing plaintiffs in securities fraud, antitrust, breach of fiduciary duty…” Source: RevenueBase Database · checked Aug 31, 2026
15	Beveridge & Diamond PC	Indirect evidence	Washington, DC, United States	201-500	324 contacts →
	Indirect evidence “Beveridge & Diamond’s 160+ lawyers in 7 U.S.” Source: RevenueBase Database · checked Aug 31, 2026
16	Gibbons P.C	Indirect evidence	Washington, DC, United States	201-500	319 contacts →
	Indirect evidence “Gibbons has combined with Frost Brown Todd to launch FBT Gibbons LLP, a mid-market legal powerhouse with approximately 800 attorneys across 25 offices nationwide.” Source: RevenueBase Database · checked Aug 31, 2026
17	Dickstein Shapiro LLP	Indirect evidence	Washington, DC, United States	501-1,000	292 contacts →
	Indirect 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 Aug 31, 2026
18	Hausfeld	Indirect evidence	Washington, DC, United States	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 Aug 31, 2026
19	Tully Rinckey Pllc	Strong evidence	Washington, DC, United States	51-200	230 contacts →
	Strong evidence “Tully Rinckey PLLC is a full-service law firm dedicated to providing superior legal representation and customer service to its clients throughout the country.” Source: RevenueBase Database · checked Aug 31, 2026
20	Kellogg, Hansen, Todd, Figel & Frederick Pllc	Indirect evidence	Washington, DC, United States	51-200	219 contacts →
	Indirect evidence “Kellogg Hansen works in complex trial and appellate litigation.” Source: RevenueBase Database · checked Aug 31, 2026
21	Bose Mckinney & Evans LLP	Indirect evidence	Washington, DC, United States	201-500	213 contacts →
	Indirect evidence “At Bose McKinney & Evans, we understand that our clients need sound legal advice, but we also realize they want to work with attorneys who are approachable, responsive and…” Source: RevenueBase Database · checked Aug 31, 2026
22	Preti Flaherty	Indirect evidence	Washington, DC, United States	201-500	198 contacts →
	Indirect evidence “Throughout New England, Preti Flaherty builds momentum for its clients.” Source: RevenueBase Database · checked Aug 31, 2026
23	The Cochran Firm	Strong evidence	Washington, DC, United States	51-200	184 contacts →
	Strong evidence “The Cochran Firm is a national personal injury and criminal defense law firm founded by legendary attorney Johnnie L.” Source: RevenueBase Database · checked Aug 31, 2026
24	Semmes, Bowen & Semmes	Strong evidence	Washington, DC, United States	51-200	172 contacts →
	Strong evidence “Semmes is one of the oldest and largest full-service law firms in the State of Maryland.” Source: RevenueBase Database · checked Aug 31, 2026
25	Consilio Services LLC	Strong evidence	Washington, DC, United States	1,001-5,000	167 contacts →
	Strong 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 Aug 31, 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: 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 law firms.
Partial evidence: Its own public description names part of law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name 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 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 31, 2026

54.2%Verified-email coverage

52.0%Mobile-number coverage

41.9Average contacts per company

1-10Median size (employees)

386.5%Largest-city concentration · New York

Aug 31, 2026Page data refreshed

Companies by employee count

1-10

333

11-50

130

51-200

201-500

501-1,000

1,001-5,000

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 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 “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 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 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, 12,115 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 August 31, 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.

Law firms by metro in the United States

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 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.