Company lists · Data refreshed September 2026

Top 25 Healthcare tax law firms worldwide

RevenueBase identified 3,949 healthcare tax law firms worldwide as of September 2026 and tracks 28,557 professional contacts across them, including 10,833 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers healthcare tax law firms worldwide, 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. Country and city lists for healthcare tax law firms follow the table.

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
3,949Companies
28,557Contacts tracked
10,833Verified emails
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The 25 largest healthcare tax law firms worldwide

Ranked by team size
Top 25 of 3,949 healthcare tax law firms worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to healthcare tax 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
1Indirect evidenceParis, FranceHQ checked Sep 28, 2026501-1,000735 contacts →

Indirect evidence

“EY Société d’avocats se mobilise pour concrétiser les potentiels: c’est ainsi que nous faisons la différence pour nos clients, nos équipes et tous nos interlocuteurs.”

Source: RevenueBase Database · checked Sep 28, 2026
2Strong evidenceParis La Défense, FranceHQ checked Sep 28, 2026501-1,000690 contacts →

Strong evidence

“Deloitte Société d'Avocats is one of the leading French law firms, specializing in international tax and legal strategies.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceCiudad De Mexico, MexicoHQ checked Sep 28, 2026501-1,000683 contacts →

Indirect evidence

“Chevez Ruiz Zamarripa, es una firma especializada en la Asesoría y Consultoría Fiscal de alto nivel, que se distingue por prestar servicios personalizados con total…”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceCourbevoie, FranceHQ checked Sep 28, 2026501-1,000669 contacts →

Indirect evidence

“Les entreprises de toutes tailles sont exposées à des dispositions de plus en plus complexes en matière de réglementations fiscales et juridiques sur leur territoire national et…”

Source: RevenueBase Database · checked Sep 28, 2026
5Partial 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
6Partial 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
7Partial 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
8Strong evidenceBerlin, GermanyHQ checked Sep 28, 2026201-500279 contacts →

Strong evidence

“POELLATH is a leading German law firm with an international reach, specializing in business and tax law.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceWarsaw, PolandHQ checked Sep 28, 2026201-500248 contacts →

Indirect evidence

“Domański Zakrzewski Palinka was established in 1993.”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceWichita, KS, United StatesHQ checked Sep 28, 202651-200191 contacts →

Partial evidence

“As the largest law firm based in Kansas, with offices in Topeka, Kansas City, and Wichita, Foulston Siefkin LLP provides legal services to a broad range of clients, from large…”

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidenceUtrecht, NetherlandsHQ checked Sep 28, 2026201-500191 contacts →

Partial evidence

“In a society that poses a plethora of legal challenges to businesses, public authorities and healthcare providers, Nysingh has been a reliable legal partner for 150 years.”

Source: RevenueBase Database · checked Sep 28, 2026
12Strong evidenceZurich, SwitzerlandHQ checked Sep 28, 2026201-500175 contacts →

Strong evidence

“VISCHER is a leading Swiss law firm offering integrated legal and tax expertise.”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceHannover, GermanyHQ checked Sep 28, 20261,001-5,000154 contacts →

Indirect evidence

“Als bundesweit tätige Steuerberatungsgesellschaft hat sich die Treuhand Hannover auf die Beratung von Heilberufen spezialisiert.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceGarden City, NY, United StatesHQ checked Sep 28, 2026201-500136 contacts →

Indirect evidence

“Garfunkel Wild was founded over 40 years ago with a single purpose in mind – attend to the specific business and legal needs of our clients in the health care industry.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceGoiania, BrazilHQ checked Sep 28, 202651-200121 contacts →

Indirect evidence

“A KBL Accounting foi fundada em 2007, oferecendo soluções nas áreas de contabilidade empresarial e assessoria jurídica tributária.Atualmente, atendemos clientes do segmento…”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 28, 202651-200113 contacts →

Indirect evidence

“Meeting the Health Care Industry’s Legal and Government Relations Needs.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceMéxico, MexicoHQ checked Sep 28, 2026201-500111 contacts →

Indirect evidence

“Skatt es una de las pocas Firmas de origen mexicano con presencia internacional, contamos con oficinas estratégicamente ubicadas en las principales ciudades de México, Estados…”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceBirmingham, AL, United StatesHQ checked Sep 28, 202651-200109 contacts →

Indirect evidence

“MedManagement announces the launch of EdiPhy Advisors, a new name for our Physician Advisor & Education Services.”

Source: RevenueBase Database · checked Sep 28, 2026
19Strong evidenceVancouver, BC, CanadaHQ checked Sep 28, 202651-200106 contacts →

Strong evidence

“Thorsteinssons is the largest Canadian law firm practicing exclusively in Tax.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceÉpron, FranceHQ checked Sep 28, 202651-200105 contacts →

Indirect evidence

“Créé en 1998, LLA EXPERTS COMPTABLES compte aujourd'hui plus de 130 collaborateurs et intervient dans des missions d'expertise comptable et de conseils auprès de clients situés…”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceGlen Allen, VA, United StatesHQ checked Sep 28, 202611-50104 contacts →

Partial evidence

“Goodman Allen Donnelly was founded in 1998 by eight partners who decided to leave established Virginia law firms to create a firm where they could combine their extensive…”

Source: RevenueBase Database · checked Sep 28, 2026
22Partial evidenceGlen Allen, VA, United StatesHQ checked Sep 28, 202651-200102 contacts →

Partial evidence

“Serving healthcare legal departments across the country, Hancock, Daniel, Johnson, LLC is one of the largest healthcare firms in the U.S.”

Source: RevenueBase Database · checked Sep 28, 2026
23Strong evidenceWashington, DC, United StatesHQ checked Sep 28, 202651-200101 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
24Partial evidenceParamus, NJ, United StatesHQ checked Sep 28, 202651-200100 contacts →

Partial evidence

“Callagy Law is a multifaceted law firm committed to providing legal representation and executive coaching services and advice to our clients in New York, New Jersey, Arizona and…”

Source: RevenueBase Database · checked Sep 28, 2026
25Strong evidenceCosta Mesa, CA, United StatesHQ checked Sep 28, 202651-20099 contacts →

Strong evidence

“Helton Law Group is a forward-thinking law firm dedicated to improving healthcare by supporting hospitals in the complex challenge of payor-provider dispute dispute resolution.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 3,949 healthcare tax law firms worldwide

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Healthcare tax law firms worldwide at a glance

As of Sep 28, 2026
37.9%Verified-email coverage
7.2Average contacts per company
1-10Median size (employees)
5.9%Largest-city concentration · Sao Paulo
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
2,654
11-50
1,101
51-200
136
201-500
17
501-1,000
7
1,001-5,000
3
5,001-10,000
1
10001+
3

Email recency is reported on each country list linked below.

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 tax 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.
Coverage
Every country. Country and city lists for healthcare tax law firms are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “healthcare tax 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 tax 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 tax law firms, and records with no verified work email.
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, 10,833 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 tax law firms by location

28 lists · largest first

Every Healthcare tax law firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 tax 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 tax law firms are there worldwide?

RevenueBase identified 3,949 healthcare tax law firms worldwide 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?

EY Société D'avocats, headquartered in Paris, tops this list with the largest team on record.

Which country has the most healthcare tax law firms?

The United States leads with 1,039 companies, followed by Brazil (906) and Germany (470). Every healthcare tax law firms list by country and city is linked on this page.

Which city has the most healthcare tax law firms?

Sao Paulo leads with 232 headquartered companies, followed by Paris (101) and Rio De Janeiro (60).

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 10,833 verified decision-maker contacts tracked across these 3,949 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.