Company lists · Data refreshed September 2026

Top 25 Hospital law firms based in Washington, United States

Name: Hospital 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 28, 2026 73 companies tracked

RevenueBase identified 73 hospital law firms headquartered in Washington, United States as of September 2026 and tracks 3,533 professional contacts across them, including 2,282 with verified work emails. Across the United States, New York is the largest hub for this category (204 companies); Washington has 73.

This list covers hospital 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 28, 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 28, 2026 86% judged on-target in blind review

73Companies

3,533Contacts tracked

2,282Verified emails

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

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

Ranked by team size

Top 25 of 73 hospital law firms based in Washington, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to hospital 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 28, 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 28, 2026
2	Wiley Rein LLP	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 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 28, 2026
3	Groom LAW Group, Chartered	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 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 28, 2026
4	Powers LAW	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	51-200	101 contacts →
	Partial 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 28, 2026
5	American Health LAW Association	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	86 contacts →
	Partial evidence “Excellence in health care requires excellence in health law.” Source: RevenueBase Database · checked Sep 28, 2026
6	Reno & Cavanaugh, Pllc	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 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 28, 2026
7	Pilieromazza Pllc	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 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 28, 2026
8	Rueb Stoller Daniel, LLP	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	51-200	60 contacts →
	Partial evidence “Rueb Stoller Daniel, LLP is a law firm made up of nationally recognized trial attorneys whom have successfully represented tens of thousands of clients throughout the United…” Source: RevenueBase Database · checked Sep 28, 2026
9	Olsson Frank Weeda Terman Matz PC	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 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 28, 2026
10	Conn Maciel Carey LLP	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	46 contacts →
	Partial evidence “Conn Maciel Carey LLP is a boutique law firm focused on Labor & Employment, Workplace Safety - OSHA/MSHA, and Litigation.” Source: RevenueBase Database · checked Sep 28, 2026
11	Peacock Keller, LLP	Partial evidence	Washington, PA, United StatesHQ checked Sep 28, 2026	51-200	38 contacts →
	Partial evidence “Peacock Keller is a full service law firm headquartered in Washington, Pennsylvania.” Source: RevenueBase Database · checked Sep 28, 2026
12	Tiber Hudson LLC	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 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 28, 2026
13	Jeffrey J. Kimbell & Associates	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	31 contacts →
	Indirect evidence “Jeffrey J.” Source: RevenueBase Database · checked Sep 28, 2026
14	Nigh Goldenberg Raso & Vaughn Pllc	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 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 28, 2026
15	Duncan, Weinberg, Genzer & Pembroke, P.C. Dwgp	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 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 28, 2026
16	Slevin & Hart P.C	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	51-200	26 contacts →
	Indirect evidence “Slevin & Hart, P.C.” Source: RevenueBase Database · checked Sep 28, 2026
17	Liles Parker Pllc	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 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 28, 2026
18	Koonz Mckenney Johnson & Depaolis LLP	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	51-200	20 contacts →
	Indirect evidence “Since 1979, the personal injury attorneys at Koonz McKenney Johnson & DePaolis LLP have fought aggressively to uphold justice on behalf of our clients.” Source: RevenueBase Database · checked Sep 28, 2026
19	Veritas LAW	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 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 28, 2026
20	Friedlander Misler Pllc	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	14 contacts →
	Indirect evidence “Founded in 1964, we are a Washington, D.C.” Source: RevenueBase Database · checked Sep 28, 2026
21	TDY FGS Global	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 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 28, 2026
22	Eyman Partners, LLC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 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 28, 2026
23	O Riordan Bethel LAW Firm, LLP	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 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 28, 2026
24	Mills Black LLP	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 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 28, 2026
25	Verma & Waters, LLP	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	6 contacts →
	Partial evidence “Verma & Waters, LLP is a specialty law firm dedicated to the representation of employers and executives on a wide variety of workplace-related issues.” Source: RevenueBase Database · checked Sep 28, 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: hospital 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 hospital law firms.
Partial evidence: Its own public description names part of hospital law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name hospital 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 73 hospital 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 2,282 reachable decision-makers.

Free signup · no credit card

View the full list →

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

As of Sep 28, 2026

64.6%Verified-email coverage

48.4Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 73 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 hospital 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 “hospital 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 hospital 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 hospital 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, 2,282 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 28, 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.

Hospital 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 hospital 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 hospital law firms are there based in Washington, United States?

RevenueBase identified 73 hospital 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 hospital law firms?

New York leads the United States with 204 headquartered companies, followed by Chicago (173) and Houston (154). Washington has 73.

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 2,282 verified decision-maker contacts tracked across these 73 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 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 73 hospital law firms based in Washington, United States. Start with a free account, no credit card.

Download this list →

Related lists

Hospital 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.