Company lists · Data refreshed September 2026

Top 25 Niche law firms based in Washington, United States

Name: Niche 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 14, 2026 127 companies tracked

RevenueBase identified 127 niche law firms headquartered in Washington, United States as of September 2026 and tracks 9,812 professional contacts across them, including 6,434 with verified work emails. New York is the largest hub.

This list covers niche 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 14, 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 14, 2026 86% judged on-target in blind review

127Companies

9,812Contacts tracked

6,434Verified emails

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The 25 largest niche law firms based in Washington, United States

Ranked by team size

Top 25 of 127 niche law firms based in Washington, United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to niche 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	Arnold & Porter	Indirect evidence	Washington, DC, United StatesHQ checked Sep 14, 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 14, 2026
2	Bakerhostetler	Partial evidence	Washington, DC, United StatesHQ checked Sep 14, 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 14, 2026
3	Venable LLP	Partial evidence	Washington, DC, United StatesHQ checked Sep 14, 2026	1,001-5,000	1,790 contacts →
	Partial 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 Sep 14, 2026
4	Crowell & Moring	Partial evidence	Washington, DC, United StatesHQ checked Sep 14, 2026	1,001-5,000	1,602 contacts →
	Partial evidence “Crowell & Moring is an international law firm with operations in the United States, Europe, MENA, and Asia.” Source: RevenueBase Database · checked Sep 14, 2026
5	Wiley Rein LLP	Indirect evidence	Washington, DC, United StatesHQ checked Sep 14, 2026	501-1,000	576 contacts →
	Indirect evidence “Founded in 1983, Wiley is a dominant presence in the nation’s capital.” Source: RevenueBase Database · checked Sep 14, 2026
6	Keller And Heckman LLP	Partial evidence	Washington, DC, United StatesHQ checked Sep 14, 2026	51-200	230 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 14, 2026
7	Sughrue Mion Pllc	Partial evidence	Washington, DC, United StatesHQ checked Sep 14, 2026	201-500	211 contacts →
	Partial evidence “From Sughrue’s inception in 1957 to the present, we have focused solely on intellectual property law.” Source: RevenueBase Database · checked Sep 14, 2026
8	Wilkinson Stekloff LLP	Indirect evidence	Washington, DC, United StatesHQ checked Sep 14, 2026	51-200	77 contacts →
	Indirect evidence “In just over four years, Wilkinson Stekloff has established itself as the leading trial litigation boutique in the country.” Source: RevenueBase Database · checked Sep 14, 2026
9	DOW Lohnes	Indirect evidence	Washington, DC, United StatesHQ checked Sep 14, 2026	201-500	73 contacts →
	Indirect evidence “On January 1, 2014, Dow Lohnes merged with Cooley LLP.” Source: RevenueBase Database · checked Sep 14, 2026
10	Pilieromazza Pllc	Partial evidence	Washington, DC, United StatesHQ checked Sep 14, 2026	51-200	70 contacts →
	Partial evidence “PilieroMazza – a business law firm – serves as a strategic partner to government contractors and commercial businesses from across the United States in numerous industries.” Source: RevenueBase Database · checked Sep 14, 2026
11	HWG LLP	Partial evidence	Washington, DC, United StatesHQ checked Sep 14, 2026	51-200	70 contacts →
	Partial evidence “HWG LLP is a boutique law firm designed to offer clients access to top tier legal talent without unnecessary overhead.” Source: RevenueBase Database · checked Sep 14, 2026
12	Cooper & Kirk Pllc	Indirect evidence	Washington, DC, United StatesHQ checked Sep 14, 2026	11-50	38 contacts →
	Indirect evidence “Cooper & Kirk is a litigation boutique specializing in commercial, regulatory, and constitutional disputes in both federal and state courts.” Source: RevenueBase Database · checked Sep 14, 2026
13	Tiber Hudson LLC	Partial evidence	Washington, DC, United StatesHQ checked Sep 14, 2026	11-50	36 contacts →
	Partial evidence “Tiber Hudson LLC is a boutique law firm focused in providing legal services including complex commercial litigation, complex commercial transactions, corporate structure and…” Source: RevenueBase Database · checked Sep 14, 2026
14	Kelly Ip, LLP	Partial evidence	Washington, DC, United StatesHQ checked Sep 14, 2026	11-50	34 contacts →
	Partial evidence “Kelly IP is a leading IP law boutique focusing on litigation and counseling in trademark, unfair competition, false advertising, right-of-publicity, copyright, design protection…” Source: RevenueBase Database · checked Sep 14, 2026
15	Duncan, Weinberg, Genzer & Pembroke, P.C. Dwgp	Indirect evidence	Washington, DC, United StatesHQ checked Sep 14, 2026	11-50	28 contacts →
	Indirect evidence “Since its founding in 1971, DWG & P, has provided a broad range of counseling, regulatory, litigation and legislative services to clients in every region of the country.” Source: RevenueBase Database · checked Sep 14, 2026
16	Trister, Ross, Schadler & Gold, Pllc	Indirect evidence	Washington, DC, United StatesHQ checked Sep 14, 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 14, 2026
17	GKG Law, P.C	Partial evidence	Washington, DC, United StatesHQ checked Sep 14, 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 14, 2026
18	Weisbrod Matteis & Copley Pllc	Indirect evidence	Washington, DC, United StatesHQ checked Sep 14, 2026	51-200	25 contacts →
	Indirect evidence “You can count on Weisbrod Matteis & Copley when the stakes are high.” Source: RevenueBase Database · checked Sep 14, 2026
19	Garrison	Partial evidence	Washington, DC, United StatesHQ checked Sep 14, 2026	11-50	22 contacts →
	Partial evidence “Elite attorneys, law firms, and corporations align with Garrison because of our approach: a blend of intellectual rigor and emotional understanding.” Source: RevenueBase Database · checked Sep 14, 2026
20	Schaerr Jaffe LLP	Indirect evidence	Washington, DC, United StatesHQ checked Sep 14, 2026	11-50	20 contacts →
	Indirect evidence “Schaerr \| Jaffe LLP is a Washington D.C.” Source: RevenueBase Database · checked Sep 14, 2026
21	Veritas LAW	Partial evidence	Washington, DC, United StatesHQ checked Sep 14, 2026	1-10	16 contacts →
	Partial evidence “A full-service business law firm, Veritas Law has expertise in corporate and transactional law, litigation, and licensing.” Source: RevenueBase Database · checked Sep 14, 2026
22	Stein IP LLC	Partial evidence	Washington, DC, United StatesHQ checked Sep 14, 2026	11-50	16 contacts →
	Partial evidence “Stein IP LLC is a full service intellectual property law firm with an emphasis on intellectual property creation and maximization.” Source: RevenueBase Database · checked Sep 14, 2026
23	Secil LAW Pllc	Indirect evidence	Washington, DC, United StatesHQ checked Sep 14, 2026	11-50	15 contacts →
	Indirect evidence “As a premier, D.C-based boutique firm, we regularly take on the government in high-stakes litigation and investigations.” Source: RevenueBase Database · checked Sep 14, 2026
24	Friedlander Misler Pllc	Indirect evidence	Washington, DC, United StatesHQ checked Sep 14, 2026	11-50	14 contacts →
	Indirect evidence “Founded in 1964, we are a Washington, D.C.” Source: RevenueBase Database · checked Sep 14, 2026
25	MEI & Mark LLP	Partial evidence	Washington, DC, United StatesHQ checked Sep 14, 2026	11-50	13 contacts →
	Partial evidence “Founded in February 2009, Mei & Mark LLP is a minority-owned law firm based in Washington, DC, and has been recognized as one of the Go-To Law Firms at the Top 500 Companies by…” Source: RevenueBase Database · checked Sep 14, 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: niche 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 niche law firms.
Partial evidence: Its own public description names part of niche law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name niche 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 127 niche law firms based in Washington, United States

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Niche law firms based in Washington, United States at a glance

As of Sep 14, 2026

65.6%Verified-email coverage

77.3Average contacts per company

1-10Median size (employees)

338.6%Largest-city concentration · New York

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 127 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 niche 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 “niche 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 niche 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 niche 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, 6,434 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 14, 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.

Niche 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 niche 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 niche law firms are there based in Washington, United States?

RevenueBase identified 127 niche 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?

Arnold & Porter, headquartered in Washington, tops this list with the largest team on record.

Which city has the most niche law firms?

New York leads with 430 headquartered companies, followed by Chicago (219) and Los Angeles (214).

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 6,434 verified decision-maker contacts tracked across these 127 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 14, 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.