Company lists · Data refreshed September 2026

Top 25 Clinical trial law firms worldwide

Name: Clinical trial law firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 4,902 companies tracked

RevenueBase identified 4,902 clinical trial law firms worldwide as of September 2026 and tracks 109,227 professional contacts across them, including 46,415 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers clinical trial 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 27, 2026. Country and city lists for clinical trial 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 27, 2026 86% judged on-target in blind review

4,902Companies

109,227Contacts tracked

46,415Verified emails

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The 25 largest clinical trial law firms worldwide

Ranked by team size

Top 25 of 4,902 clinical trial law firms worldwide, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to clinical trial 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	PPD	Partial evidence	Waltham, MA, United StatesHQ checked Sep 27, 2026	10001+	20,530 contacts →
	Partial evidence “The PPD™ clinical research business of Thermo Fisher Scientific, the world leader in serving science, enables customers to accelerate innovation and drug development through…” Source: RevenueBase Database · checked Sep 27, 2026
2	Premier Research	Partial evidence	Morrisville, NC, United StatesHQ checked Sep 27, 2026	1,001-5,000	2,584 contacts →
	Partial evidence “Premier Research International LLC (Premier) is a global leader in clinical research and consulting services with expertise in driving an efficient and effective path to market…” Source: RevenueBase Database · checked Sep 27, 2026
3	Propharma	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 27, 2026	1,001-5,000	2,079 contacts →
	Indirect evidence “At ProPharma, we help pharmaceutical, biotechnology, and medical device companies bring life-changing therapies to market.” Source: RevenueBase Database · checked Sep 27, 2026
4	Novotech	Partial evidence	Singapore, AustraliaHQ checked Sep 27, 2026	1,001-5,000	1,778 contacts →
	Partial evidence “Novotech is a globally recognized full-service clinical research organization (CRO) and scientific advisory company that provides biotech and small- to mid-sized pharma companies…” Source: RevenueBase Database · checked Sep 27, 2026
5	Veeda Lifesciences	Strong evidence	Ahmedabad, IndiaHQ checked Sep 27, 2026	501-1,000	1,320 contacts →
	Strong evidence “We partner with innovator and generic companies using our high-quality infrastructure and a global network of clinical trial sites, to launch novel therapies and new products for…” Source: RevenueBase Database · checked Sep 27, 2026
6	Vimta Labs LTD	Indirect evidence	Hyderabad, IndiaHQ checked Sep 27, 2026	1,001-5,000	1,239 contacts →
	Indirect evidence “Founded in 1984 with headquarters in Hyderabad, India, VIMTA LABS LTD.” Source: RevenueBase Database · checked Sep 27, 2026
7	Lambda Therapeutic Research	Partial evidence	Ahmedabad, IndiaHQ checked Sep 27, 2026	1,001-5,000	1,235 contacts →
	Partial evidence “Lambda Therapeutic Research is a leading full-service Global Clinical Research Organization (CRO) headquartered in Ahmedabad (India), with facilities and operations in Mehsana…” Source: RevenueBase Database · checked Sep 27, 2026
8	Perceptive INC	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	1,001-5,000	1,197 contacts →
	Partial evidence “Expanding on their combined 50-year history, Perceptive provides best-in-class specialist support to global pharmaceutical, biotech, and clinical research organizations, spanning…” Source: RevenueBase Database · checked Sep 27, 2026
9	WCG	Partial evidence	Cary, NC, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,103 contacts →
	Partial evidence “WCG is a true partner to research sponsors, CROs, sites and participants in navigating the clinical research journey.” Source: RevenueBase Database · checked Sep 27, 2026
10	CTI Clinical Trial And Consulting Services	Strong evidence	Covington, KY, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,043 contacts →
	Strong evidence “CTI Clinical Trial and Consulting Services is a global, privately held, research service organization, delivering a complete spectrum of clinical trial and consulting services…” Source: RevenueBase Database · checked Sep 27, 2026
11	Navitas Life Sciences	Partial evidence	Gaithersburg, MD, United StatesHQ checked Sep 27, 2026	1,001-5,000	990 contacts →
	Partial evidence “Navitas Life Sciences is a global Clinical Research partner with over 35 years of expertise in Clinical, Regulatory, Safety, and Data Management solutions.” Source: RevenueBase Database · checked Sep 27, 2026
12	EMMES	Strong evidence	Rockville, MD, United StatesHQ checked Sep 27, 2026	1,001-5,000	961 contacts →
	Strong evidence “Emmes is a Contract Research Organization delivering complex clinical trials through therapeutic expertise, scientific rigor, and technology-enabled execution.” Source: RevenueBase Database · checked Sep 27, 2026
13	Bioagilytix	Indirect evidence	Durham, NC, United StatesHQ checked Sep 27, 2026	1,001-5,000	915 contacts →
	Indirect evidence “BioAgilytix is a leading global contract research organization focused on supporting pharmaceutical and biotech partners in all phases of drug development.” Source: RevenueBase Database · checked Sep 27, 2026
14	Caidya	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 27, 2026	1,001-5,000	758 contacts →
	Partial evidence “Caidya is a multi-therapeutic clinical research organization (CRO) serving innovators worldwide.” Source: RevenueBase Database · checked Sep 27, 2026
15	Frontage Laboratories, INC	Indirect evidence	Exton, PA, United StatesHQ checked Sep 27, 2026	1,001-5,000	727 contacts →
	Indirect evidence “Frontage Laboratories is a US-based Contract Research Organization (CRO) that was initially established in New Jersey in April 2001 and later relocated to Pennsylvania in 2004.” Source: RevenueBase Database · checked Sep 27, 2026
16	Thomas J. Henry LAW	Indirect evidence	Corpus Christi, TX, United StatesHQ checked Sep 27, 2026	201-500	696 contacts →
	Indirect evidence “Thomas J.” Source: RevenueBase Database · checked Sep 27, 2026
17	Pharma Medica Research INC	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 27, 2026	201-500	568 contacts →
	Indirect evidence “Pharma Medica Research is a full service early phase contract research organization.” Source: RevenueBase Database · checked Sep 27, 2026
18	Bowman And Brooke	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 27, 2026	501-1,000	537 contacts →
	Partial evidence “Bowman and Brooke LLP is a nationally recognized trial firm with one of the largest product liability practices in the country.” Source: RevenueBase Database · checked Sep 27, 2026
19	Axis Clinicals LTD	Partial evidence	Hyderabad, IndiaHQ checked Sep 27, 2026	201-500	535 contacts →
	Partial evidence “AXIS Clinicals Limited is one of the most experienced and fastest growing Clinical Research Organization.” Source: RevenueBase Database · checked Sep 27, 2026
20	Chiltern	Indirect evidence	Durham, NC, United StatesHQ checked Sep 27, 2026	10001+	532 contacts →
	Indirect evidence “THIS PAGE IS NOT MONITORED.” Source: RevenueBase Database · checked Sep 27, 2026
21	Weitz & Luxenberg PC	Partial evidence	New York, NY, United StatesHQ checked Sep 27, 2026	201-500	530 contacts →
	Partial evidence “Weitz & Luxenberg is New York City’s largest personal injury and mass-tort plaintiffs’ law firm.” Source: RevenueBase Database · checked Sep 27, 2026
22	Tigermed	Partial evidence	Hangzhou, ChinaHQ checked Sep 27, 2026	5,001-10,000	522 contacts →
	Partial evidence “Tigermed (Stock code: 300347.SZ/3347.HK) is a leading provider of innovative clinical research solutions across the full life cycle of biopharmaceutical and medical device…” Source: RevenueBase Database · checked Sep 27, 2026
23	Everest Clinical Research	Partial evidence	Toronto, ON, CanadaHQ checked Sep 27, 2026	501-1,000	498 contacts →
	Partial evidence “Everest Clinical Research ("Everest") is a full-service contract research organization (CRO) providing a broad range of expertise-based clinical research services to worldwide…” Source: RevenueBase Database · checked Sep 27, 2026
24	Raptim Research Pvt. LTD	Indirect evidence	Mumbai, IndiaHQ checked Sep 27, 2026	201-500	471 contacts →
	Indirect evidence “Welcome to Raptim Research Pvt.” Source: RevenueBase Database · checked Sep 27, 2026
25	Continuum India LLP	Partial evidence	Chandigarh, IndiaHQ checked Sep 27, 2026	501-1,000	449 contacts →
	Partial evidence “CONTINUUM is a contract research organization offering services Pharmacovigilance, Regulatory, Clinical and Technology domains.” Source: RevenueBase Database · checked Sep 27, 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: clinical trial 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 clinical trial law firms.
Partial evidence: Its own public description names part of clinical trial law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name clinical trial 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 4,902 clinical trial law firms worldwide

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Clinical trial law firms worldwide at a glance

As of Sep 27, 2026

42.5%Verified-email coverage

22.3Average contacts per company

1-10Median size (employees)

1.9%Largest-city concentration · Houston

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

2,681

11-50

1,519

51-200

513

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 clinical trial 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 clinical trial law firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “clinical trial 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 clinical trial 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 clinical trial 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, 46,415 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 27, 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.

Clinical trial law firms by location

32 lists · largest first

Every Clinical trial 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 clinical trial 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 clinical trial law firms are there worldwide?

RevenueBase identified 4,902 clinical trial 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?

PPD, headquartered in Waltham, tops this list with the largest team on record.

Which country has the most clinical trial law firms?

The United States leads with 2,596 companies, followed by India (333) and the United Kingdom (134). Every clinical trial law firms list by country and city is linked on this page.

Which city has the most clinical trial law firms?

Houston leads with 95 headquartered companies, followed by Chicago (77) and New York (75).

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 46,415 verified decision-maker contacts tracked across these 4,902 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 27, 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.