Company lists · Data refreshed September 2026

Top 25 Healthcare antitrust law firms based in the United States

RevenueBase identified 1,041 healthcare antitrust law firms headquartered in the United States as of September 2026 and tracks 28,877 professional contacts across them, including 16,920 with verified work emails. New York is the largest hub.

This list covers healthcare antitrust law firms headquartered in the 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
1,041Companies
28,877Contacts tracked
16,920Verified emails
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The 25 largest healthcare antitrust law firms based in the United States

Ranked by team size
Top 25 of 1,041 healthcare antitrust law firms based in the 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 antitrust 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceKansas City, MO, United StatesHQ checked Sep 28, 20261,001-5,0002,085 contacts →

Partial evidence

“Polsinelli is an Am Law 100 firm with more than 1,200 attorneys in over 25 offices nationwide.”

Source: RevenueBase Database · checked Sep 28, 2026
2Partial evidenceColumbia, SC, United StatesHQ checked Sep 28, 20261,001-5,0002,012 contacts →

Partial evidence

“Established in 1897, Nelson Mullins is an Am Law 100 firm of more than attorneys, policy advisors and professionals with 33 offices in 17 states and Washington, D.C.”

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceWashington, DC, United StatesHQ checked Sep 28, 20261,001-5,0001,790 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
4Partial evidencePhiladelphia, PA, United StatesHQ checked Sep 28, 20261,001-5,0001,682 contacts →

Partial evidence

“Ballard Spahr LLP, an Am Law 100 law firm with more than 750 lawyers in 19 U.S.”

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidencePittsburgh, PA, United StatesHQ checked Sep 28, 2026501-1,0001,197 contacts →

Partial evidence

“Buchanan Ingersoll & Rooney is a national law firm with a proven reputation for providing progressive, industry-leading legal, business, regulatory and government relations advice…”

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 2026501-1,000701 contacts →

Partial evidence

“Clients turn to Epstein Becker Green for strategic counsel in employment and labor law, health care and life sciences, and complex litigation.”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceWashington, DC, United StatesHQ checked Sep 28, 2026501-1,000576 contacts →

Indirect evidence

“Founded in 1983, Wiley is a dominant presence in the nation’s capital.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceNashville, TN, United StatesHQ checked Sep 28, 2026501-1,000573 contacts →

Partial evidence

“Bass, Berry & Sims is an independent, nationally recognized law firm dedicated to helping clients go confidently through complex legal challenges.”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceLouisville, KY, United StatesHQ checked Sep 28, 2026201-500426 contacts →

Partial evidence

“A full-service law firm representing clients across the United States and internationally, Stites & Harbison, PLLC is known as a preeminent firm managing sophisticated…”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceSt Louis, MO, United StatesHQ checked Sep 28, 2026201-500387 contacts →

Indirect evidence

“Over 45 years providing superior legal services to clients of every size throughout the Midwest and across the country, Sandberg Phoenix is consistently rated as one of St.”

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidenceIndianapolis, IN, United StatesHQ checked Sep 28, 2026201-500366 contacts →

Partial evidence

“As a national health care-focused law firm, Hall Render is distinguished by its attorneys' extensive knowledge and experience.”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidencePhiladelphia, PA, United StatesHQ checked Sep 28, 2026201-500336 contacts →

Indirect evidence

“For over 50 years, Post & Schell’s attorneys have combined the operational knowledge and insight into the industries they represent with creative legal solutions – and helped…”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceNew Orleans, LA, United StatesHQ checked Sep 28, 2026201-500328 contacts →

Indirect evidence

“Galloway Johnson Tompkins Burr & Smith stands ready as a premier corporate defense and litigation firm in the Gulf South and Midwest to be your strategic advisor.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 28, 2026201-500310 contacts →

Indirect evidence

“At Burns White LLC, we are committed to representing our clients with excellence.”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceDetroit, MI, United StatesHQ checked Sep 28, 2026201-500303 contacts →

Partial evidence

“Bodman PLC is one of the Midwest's leading business law firms with more than 170 lawyers.”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidencePhiladelphia, PA, United StatesHQ checked Sep 28, 2026201-500277 contacts →

Indirect evidence

“Margolis Edelstein was founded in Philadelphia over 65 years ago.”

Source: RevenueBase Database · checked Sep 28, 2026
17Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 28, 2026201-500272 contacts →

Partial evidence

“Econic Partners is a leading economic consulting firm focused on complex antitrust, regulatory, litigation, and policy matters.”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 2026201-500237 contacts →

Indirect evidence

“Kaufman Borgeest & Ryan LLP was founded over twenty years ago, by experienced and nationally recognized defense attorneys dedicated to providing the highest quality legal services…”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceWashington, DC, United StatesHQ checked Sep 28, 202651-200211 contacts →

Indirect evidence

“Kellogg Hansen works in complex trial and appellate litigation.”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceHouston, TX, United StatesHQ checked Sep 28, 202651-200208 contacts →

Partial evidence

“For over 25 years, Johnson Law Group has been committed to delivering exceptional legal services with integrity, professionalism, and a client-focused approach.”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidencePhiladelphia, PA, United StatesHQ checked Sep 28, 202651-200204 contacts →

Partial evidence

“Rawle & Henderson, LLP, is a Mid-Atlantic regional law firm whose attorneys engage in civil trial litigation.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 202651-200196 contacts →

Indirect evidence

“A firm to turn to when all seems hopeless"-Chambers USA Axinn combines the skills, experience and dedication of the world's largest firms with the focus, responsiveness…”

Source: RevenueBase Database · checked Sep 28, 2026
23Partial evidenceRichmond, VA, United StatesHQ checked Sep 28, 202651-200173 contacts →

Partial evidence

“Hirschler is a national-caliber law firm based in Virginia.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceRichmond, VA, United StatesHQ checked Sep 28, 202651-200166 contacts →

Indirect evidence

“Sands Anderson's Virginia and North Carolina attorneys offer a comprehensive range of transactional and litigation legal services to businesses, business owners and company…”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceChattanooga, TN, United StatesHQ checked Sep 28, 202651-200164 contacts →

Indirect evidence

“Nationally recognized for client service, Chambliss has provided legal counsel locally, regionally, and nationally for over 135 years.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 1,041 healthcare antitrust law firms based in the United States

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Healthcare antitrust law firms based in the United States at a glance

As of Sep 28, 2026
58.6%Verified-email coverage
27.7Average contacts per company
1-10Median size (employees)
5.4%Largest-city concentration · New York
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
557
11-50
354
51-200
102
201-500
15
501-1,000
5
1,001-5,000
4

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,041 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 antitrust 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 the United States whose own description of what they do matches “healthcare antitrust 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 antitrust 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 antitrust law firms, and records with no verified work email. Companies headquartered outside United States 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, 16,920 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.

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 antitrust 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 antitrust law firms are there based in the United States?

RevenueBase identified 1,041 healthcare antitrust law firms headquartered in the 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?

Polsinelli, headquartered in Kansas City, tops this list with the largest team on record.

Which city has the most healthcare antitrust law firms?

New York leads with 56 headquartered companies, followed by Los Angeles (38) and Chicago (35).

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 16,920 verified decision-maker contacts tracked across these 1,041 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.