Company lists · Data refreshed September 2026

Top 25 Healthcare compliance law firms based in Washington, United States

Name: Healthcare compliance 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 44 companies tracked

RevenueBase identified 44 healthcare compliance law firms headquartered in Washington, United States as of September 2026 and tracks 2,211 professional contacts across them, including 1,422 with verified work emails. Across the United States, Washington is the largest hub for this category.

This list covers healthcare compliance 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

44Companies

2,211Contacts tracked

1,422Verified emails

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

Ranked by team size

Top 25 of 44 healthcare compliance 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 healthcare compliance 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	Strong evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,790 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 Sep 28, 2026
2	Powers LAW	Strong evidence	Washington, DC, United StatesHQ checked Sep 28, 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 28, 2026
3	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
4	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
5	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
6	Sirona Strategies	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 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 28, 2026
7	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
8	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
9	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
10	American Redwood Consulting	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	6 contacts →
	Partial evidence “OUR MISSION:" To promote organizational culture that encourages a commitment to local, state, and federal regulatory compliance" info@arcglobalteam.com 1-833-TEAM ARC…” Source: RevenueBase Database · checked Sep 28, 2026
11	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
12	Feldesman Leifer LLP	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	11-50	5 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
13	Kinner & Mcgowan, Pllc	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	5 contacts →
	Partial evidence “Established in 2015, Kinner & McGowan specializes in regulatory compliance and civil litigation in the cannabis industry.” Source: RevenueBase Database · checked Sep 28, 2026
14	Mcintyre & Lemon, Pllc	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	5 contacts →
	Partial evidence “McIntyre & Lemon, PLLC helps clients efficiently navigate the complex maze of federal and state laws and regulations.” Source: RevenueBase Database · checked Sep 28, 2026
15	Diceros LAW	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “Providing group health plan sponsors and fiduciaries sophisticated legal solutions to assure their plans’ fiscal integrity and regulatory compliance.” Source: RevenueBase Database · checked Sep 28, 2026
16	Compliance Systems Legal Group Cslg	Strong evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	3 contacts →
	Strong evidence “Compliance Systems Legal Group (CSLG) was a boutique law firm that focused exclusively on corporate compliance, ethics and governance.” Source: RevenueBase Database · checked Sep 28, 2026
17	G2z LAW Group, Pllc	Strong evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Strong evidence “At G2Z Law Group, PLLC, our attorneys counsel clients in different aspects of Health Law, including, healthcare regulations, licensing or certification of providers, relations…” Source: RevenueBase Database · checked Sep 28, 2026
18	Bruch Hanna LLP	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
19	Contract In-House Counsel And Consultants, LLC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence “Marc represents FDA-regulated companies in the food, dietary supplement, beverage, cosmetic, medical device and drug industries.” Source: RevenueBase Database · checked Sep 28, 2026
20	FDA Regulatory Counsel LLP	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence “FDA Regulatory Counsel is the nation's premier life science boutique for consumer product companies, private equity, and commercial lenders/investors in FDA-regulated spaces.” Source: RevenueBase Database · checked Sep 28, 2026
21	Lanton, Lanton & Sosa LAW Pllc	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Partial evidence “Where innovators in healthcare, tech and clean energy come for advice.” Source: RevenueBase Database · checked Sep 28, 2026
22	Highbridge LAW Firm	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Partial evidence “HBL Business Attorneys empowers small to mid-cap technology and healthcare companies by delivering timely, focused, and exceptional counseling and legal services in litigation…” Source: RevenueBase Database · checked Sep 28, 2026
23	Penn Avenue LAW & Policy	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Partial evidence “Penn Avenue Law & Policy is proudly focused on select areas of FDA law.” Source: RevenueBase Database · checked Sep 28, 2026
24	Bull Owen LAW Pllc	Strong evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Strong evidence “Bull Owen Law, PLLC was founded with the goal of providing experienced and affordable counsel to healthcare providers and suppliers.” Source: RevenueBase Database · checked Sep 28, 2026
25	Seldenlindeke LLP	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence “At SeldenLindeke, our mission is to deliver the most effective regulatory legal advice to our clients, underpinned by the unique expertise of our team.” 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: healthcare compliance 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 compliance law firms.
Partial evidence: Its own public description names part of healthcare compliance 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 compliance 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 44 healthcare compliance law firms based in Washington, United States

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

As of Sep 28, 2026

64.3%Verified-email coverage

50.2Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 44 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 healthcare compliance 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 compliance 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 compliance 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 compliance 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, 1,422 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.

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

RevenueBase identified 44 healthcare compliance 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 compliance law firms?

Washington leads the United States with 44 headquartered companies, followed by New York (34) and Los Angeles (31).

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 1,422 verified decision-maker contacts tracked across these 44 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.

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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.