Company lists · Data refreshed September 2026

Top 25 Healthcare law firms based in Washington, United States

Name: Healthcare 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 12, 2026 78 companies tracked

RevenueBase identified 78 healthcare law firms headquartered in Washington, United States as of September 2026 and tracks 3,733 professional contacts across them, including 2,385 with verified work emails and 2,148 with mobile numbers. Across the United States, New York is the largest hub for this category (94 companies); Washington has 66.

This list covers healthcare 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 12, 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 12, 2026 86% judged on-target in blind review

78Companies

3,733Contacts tracked

2,385Verified emails

2,148Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

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

Ranked by team size

Top 25 of 78 healthcare law firms based in Washington, United States, ranked by team size, largest first. Data refreshed Sep 12, 2026. RevenueBase Smart Search rates how each company's information relates to healthcare 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	Venable LLP	Partial evidence	Washington, DC, United StatesHQ checked Sep 12, 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 12, 2026
2	Wiley Rein LLP	Indirect evidence	Washington, DC, United StatesHQ checked Sep 12, 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 12, 2026
3	Keller And Heckman LLP	Partial evidence	Washington, DC, United StatesHQ checked Sep 12, 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 12, 2026
4	Groom LAW Group, Chartered	Partial evidence	Washington, DC, United StatesHQ checked Sep 12, 2026	51-200	174 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 12, 2026
5	Powers LAW	Strong evidence	Washington, DC, United StatesHQ checked Sep 12, 2026	51-200	101 contacts →
	Strong evidence “Powers Pyles Sutter & Verville PC is a Washington, DC-based law firm that began with a strong focus on healthcare law and healthcare policy and has gradually expanded capabilities…” Source: RevenueBase Database · checked Sep 12, 2026
6	American Health LAW Association	Partial evidence	Washington, DC, United StatesHQ checked Sep 12, 2026	11-50	86 contacts →
	Partial evidence “Excellence in health care requires excellence in health law.” Source: RevenueBase Database · checked Sep 12, 2026
7	Hyman, Phelps & Mcnamara, P.C	Indirect evidence	Washington, DC, United StatesHQ checked Sep 12, 2026	51-200	82 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 12, 2026
8	Reno & Cavanaugh, Pllc	Partial evidence	Washington, DC, United StatesHQ checked Sep 12, 2026	51-200	73 contacts →
	Partial evidence “Since 1977, Reno & Cavanaugh has been a national law firm dedicated to strengthening communities through strategic use of public and private resources.” Source: RevenueBase Database · checked Sep 12, 2026
9	Mcdermott	Indirect evidence	Washington, DC, United StatesHQ checked Sep 12, 2026	11-50	60 contacts →
	Indirect evidence “McDermott+ serves health industry clients with one-stop lobbying services, data analytics and modeling and policy advice.” Source: RevenueBase Database · checked Sep 12, 2026
10	Olsson Frank Weeda Terman Matz PC	Partial evidence	Washington, DC, United StatesHQ checked Sep 12, 2026	11-50	49 contacts →
	Partial evidence “Olsson Frank Weeda Terman Matz PC The nation’s premier FDA, USDA, and health care law firm, serving clients before federal agencies, courts, and Congress.” Source: RevenueBase Database · checked Sep 12, 2026
11	Healthsperien LLC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 12, 2026	51-200	36 contacts →
	Indirect evidence “Healthsperien, LLC is a nationally recognized, Washington, D.C.–based policy and health care consulting firm focused on strategic, regulatory, legislative, and implementation…” Source: RevenueBase Database · checked Sep 12, 2026
12	Tiber Hudson LLC	Partial evidence	Washington, DC, United StatesHQ checked Sep 12, 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 12, 2026
13	Jeffrey J. Kimbell & Associates	Indirect evidence	Washington, DC, United StatesHQ checked Sep 12, 2026	11-50	31 contacts →
	Indirect evidence “Jeffrey J.” Source: RevenueBase Database · checked Sep 12, 2026
14	Nigh Goldenberg Raso & Vaughn Pllc	Partial evidence	Washington, DC, United StatesHQ checked Sep 12, 2026	11-50	28 contacts →
	Partial evidence “Nationwide law firm with a focus on personal injuries due to dangerous pharmaceutical medications, defective medical devices, and sexual assault.” Source: RevenueBase Database · checked Sep 12, 2026
15	Duncan, Weinberg, Genzer & Pembroke, P.C. Dwgp	Indirect evidence	Washington, DC, United StatesHQ checked Sep 12, 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 12, 2026
16	Slevin & Hart P.C	Indirect evidence	Washington, DC, United StatesHQ checked Sep 12, 2026	51-200	26 contacts →
	Indirect evidence “Slevin & Hart, P.C.” Source: RevenueBase Database · checked Sep 12, 2026
17	Stein Mitchell Beato & Missner LLP	Partial evidence	Washington, DC, United StatesHQ checked Sep 12, 2026	51-200	26 contacts →
	Partial evidence “Stein Mitchell Beato & Missner LLP is a law firm located in Washington, D.C.” Source: RevenueBase Database · checked Sep 12, 2026
18	Liles Parker Pllc	Partial evidence	Washington, DC, United StatesHQ checked Sep 12, 2026	11-50	24 contacts →
	Partial evidence “Liles Parker PLLC is a full service law firm that focuses its practice in the regulatory health law space.” Source: RevenueBase Database · checked Sep 12, 2026
19	Sirona Strategies	Indirect evidence	Washington, DC, United StatesHQ checked Sep 12, 2026	1-10	14 contacts →
	Indirect evidence “Sirona Strategies is a proactive, strategic health care consulting firm that consistently delivers results for clients seeking to succeed and grow in an evolving health care…” Source: RevenueBase Database · checked Sep 12, 2026
20	TDY FGS Global	Indirect evidence	Washington, DC, United StatesHQ checked Sep 12, 2026	1-10	10 contacts →
	Indirect evidence “Tarplin, Downs & Young, LLC (TDY) opened its doors in 2006 and continues to be a leader in strategic consulting and policy development, with a specific focus on health care.” Source: RevenueBase Database · checked Sep 12, 2026
21	Impact Health	Indirect evidence	Washington, DC, United StatesHQ checked Sep 12, 2026	1-10	8 contacts →
	Indirect evidence “At Impact Health, it’s our mission to help people be healthy.” Source: RevenueBase Database · checked Sep 12, 2026
22	Eyman Partners, LLC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 12, 2026	1-10	7 contacts →
	Indirect evidence “At Eyman Partners, we share a passion for addressing the issues that shape our health care system, and a commitment to our clients engaged in transforming that system and making…” Source: RevenueBase Database · checked Sep 12, 2026
23	O Riordan Bethel LAW Firm, LLP	Indirect evidence	Washington, DC, United StatesHQ checked Sep 12, 2026	11-50	7 contacts →
	Indirect evidence “Nationally-recognized and award-winning economists, lawyers and public policy experts providing public policy analysis; business process improvement; research and analysis…” Source: RevenueBase Database · checked Sep 12, 2026
24	Mills Black LLP	Partial evidence	Washington, DC, United StatesHQ checked Sep 12, 2026	1-10	6 contacts →
	Partial evidence “Mills Black LLP’s practice focuses on all aspects of health care and maritime law and practice, including transactional, regulatory, and litigation matters.” Source: RevenueBase Database · checked Sep 12, 2026
25	Blue Ridge LAW & Policy	Partial evidence	Washington, DC, United StatesHQ checked Sep 12, 2026	1-10	6 contacts →
	Partial evidence “Blue Ridge Law & Policy, P.C.” Source: RevenueBase Database · checked Sep 12, 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: healthcare 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 healthcare law firms.
Partial evidence: Its own public description names part of healthcare law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name healthcare 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 78 healthcare law firms based in Washington, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 2,385 reachable decision-makers.

Free signup · no credit card

View the full list →

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

As of Sep 12, 2026

63.9%Verified-email coverage

57.5%Mobile-number coverage

47.9Average contacts per company

1-10Median size (employees)

Sep 12, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 14.0d

1,9610–30

40331–60

1161–90

190–180

9180+

Company record updated

Median 57.0d

00–30

1,92531–60

1,38761–90

29590–180

126180+

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 healthcare 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 “healthcare 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 healthcare 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 healthcare 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, 2,385 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 12, 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.

Healthcare 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 healthcare 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 healthcare law firms are there based in Washington, United States?

RevenueBase identified 78 healthcare 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?

Venable LLP, headquartered in Washington, tops this list with the largest team on record.

Which city in the United States has the most healthcare law firms?

New York leads the United States with 94 headquartered companies, followed by Chicago (89) and Washington (66).

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 2,385 verified decision-maker contacts tracked across these 78 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 12, 2026.

Ready to reach these companies? Verified emails and direct dials for all 78 healthcare law firms based in Washington, United States. Start with a free account, no credit card.

Download this list →

Related lists

Healthcare law firms by geography

Browse the directory

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.