Company lists · Data refreshed September 2026

Top 25 Full-service business law firms based in Washington, United States

Name: Full-service business 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 30, 2026 446 companies tracked

RevenueBase identified 446 company matches for full-service business law firms associated with Washington, United States as of September 2026 and tracks 37,092 professional contacts across them, including 21,420 with verified work emails. Across the United States, New York is the largest hub for this category (1,625 companies); Washington has 446.

This list covers company matches for full-service business law firms associated with Washington, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 30, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 SmartSearch · Exact Recorded Sep 30, 2026 How this list was built

446Companies

37,092Contacts tracked

21,420Verified emails

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The 25 largest full-service business law firms based in Washington, United States

Ranked by team size

Top 25 of 446 company matches for full-service business law firms based in Washington, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 30, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Jones DAY	Exact match	Washington, DC, United StatesHQ recorded Sep 30, 2026	5,001-10,000	5,941 contacts →
	Exact match “With its singular tradition and widely recognized record of client service, Jones Day provides formidable legal talent across multiple disciplines and jurisdictions through the…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
2	Arnold & Porter	Exact match	Washington, DC, United StatesHQ recorded Sep 30, 2026	1,001-5,000	2,333 contacts →
	Exact match “Arnold & Porter combines sophisticated regulatory, litigation, and transactional capabilities to resolve clients’ most complex issues.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
3	Wilmerhale	Exact match	Washington, DC, United StatesHQ recorded Sep 30, 2026	1,001-5,000	2,333 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
4	Bakerhostetler	Exact match	Washington, DC, United StatesHQ recorded Sep 30, 2026	1,001-5,000	2,073 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
5	Venable LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 30, 2026	1,001-5,000	1,790 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
6	Crowell & Moring	Exact match	Washington, DC, United StatesHQ recorded Sep 30, 2026	1,001-5,000	1,602 contacts →
	Exact match “Crowell & Moring is an international law firm with operations in the United States, Europe, MENA, and Asia.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
7	Hunton Andrews Kurth LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 30, 2026	1,001-5,000	1,297 contacts →
	Exact match “For 125 years, Hunton has served clients across the globe with a collaborative and purposeful approach.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
8	Steptoe LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 30, 2026	1,001-5,000	1,207 contacts →
	Exact match “In more than 100 years of practice, Steptoe* has earned an international reputation for vigorous representation of clients before governmental agencies, successful advocacy in…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
9	Finnegan, Henderson, Farabow, Garrett & Dunner, LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 30, 2026	501-1,000	936 contacts →
	Exact match “When your most valuable assets are ideas, innovation, and brand-you need the best.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
10	Arentfox Schiff	Exact match	Washington, DC, United StatesHQ recorded Sep 30, 2026	1,001-5,000	934 contacts →
	Exact match “Your goals define our mission.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
11	Wiley Rein LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 30, 2026	501-1,000	576 contacts →
	Exact match “Founded in 1983, Wiley is a dominant presence in the nation’s capital.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
12	Sterne, Kessler, Goldstein & FOX	Exact match	Washington, DC, United StatesHQ recorded Sep 30, 2026	201-500	468 contacts →
	Exact match “Sterne, Kessler, Goldstein & Fox is a full-service intellectual property law firm that provides innovative solutions tailored to your business and industry.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
13	Williams & Connolly LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 30, 2026	501-1,000	425 contacts →
	Exact match “Williams & Connolly is recognized as one of the world’s premier litigation firms.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
14	Mckenna Long & Aldridge LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 30, 2026	1,001-5,000	313 contacts →
	Exact match “Dentons is proud to announce that the merger between Dentons US and McKenna Long & Aldridge is complete.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
15	Dickstein Shapiro LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 30, 2026	501-1,000	292 contacts →
	Exact match “Dickstein Shapiro LLP, Market Leading Specialty Firm (SM), is internationally recognized for its work with clients, from start-ups to Fortune 500 corporations.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
16	Kiernan Trebach LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 30, 2026	51-200	270 contacts →
	Exact match “Kiernan Trebach is a mid-sized law firm with offices throughout the Northeast and Mid-Atlantic regions of the United States – from Maine to Florida.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
17	Hausfeld	Exact match	Washington, DC, United StatesHQ recorded Sep 30, 2026	201-500	267 contacts →
	Exact match “Hausfeld successfully resolves disputes for its clients, driven by its bold approach and pioneering experience.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
18	Keller And Heckman LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 30, 2026	51-200	230 contacts →
	Exact match “Keller and Heckman, founded in 1962, has a broad practice in the areas of regulatory law, public policy, and litigation, serving both domestic and international clients.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
19	Kellogg, Hansen, Todd, Figel & Frederick Pllc	Exact match	Washington, DC, United StatesHQ recorded Sep 30, 2026	51-200	211 contacts →
	Exact match “Kellogg Hansen works in complex trial and appellate litigation.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
20	Price Benowitz LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 30, 2026	n/a	181 contacts →
	Exact match “Price Benowitz LLP is a law firm dedicated to fighting for its clients' rights.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
21	Groom LAW Group, Chartered	Exact match	Washington, DC, United StatesHQ recorded Sep 30, 2026	51-200	174 contacts →
	Exact match “Groom Law Group, Chartered is widely recognized as the leading benefits law firm in the United States with over 90 attorneys dedicated solely to the practice of employee benefits…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
22	Consilio Services LLC	Exact match	Washington, DC, United StatesHQ recorded Sep 30, 2026	1,001-5,000	168 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
23	Potomac LAW PLG	Exact match	Washington, DC, United StatesHQ recorded Sep 30, 2026	201-500	167 contacts →
	Exact match “Headquartered in Washington, DC with nearly 200 lawyers across 25 states, PLG is a new model law firm known nationally for its innovative business model and collaborative culture.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
24	Zuckerman Spaeder LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 30, 2026	51-200	155 contacts →
	Exact match “Zuckerman Spaeder LLP is consistently recognized as a leading national litigation boutique.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
25	Wilkinson Barker Knauer, LLP	Exact match	Washington, DC, United StatesHQ recorded Sep 30, 2026	51-200	138 contacts →
	Exact match “With offices in Washington, DC, Denver, Colorado, and Austin, Texas, Wilkinson Barker Knauer (WBK) is the nation’s largest stand-alone communications and technology law firm.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “full-service business law firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 446 full-service business law firms based in Washington, United States

See the full list, filter by size, metro and specialty, and access 21,420 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Full-service business law firms based in Washington, United States at a glance

As of Sep 30, 2026

57.7%Verified-email coverage

83.2Average contacts per company

1-10Median size (employees)

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

290

11-50

100

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 446 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Washington, United States whose business descriptions match “full-service business law firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 21,420 professional contacts with verified work emails across the full matched dataset. 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 30, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Full-service business law firms by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “full-service business law firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many full-service business law firms are there based in Washington, United States?

RevenueBase identified 446 company matches for full-service business law firms associated with Washington, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Jones DAY tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most full-service business law firms?

New York leads the United States with 1,625 company records, followed by Chicago (764) and Los Angeles (758). Washington has 446.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 21,420 professional contacts with verified work emails tracked across these 446 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 30, 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 SmartSearch, 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.