Company lists · Data verified August 2026

Top 25 Drug development consulting firms based in the United States

Name: Drug development consulting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 4,857 companies tracked

There are 4,857 drug development consulting firms headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 222,914 professional contacts across them, including 91,219 with verified work emails and 56,664 with mobile numbers. Boston is the largest hub.

This list covers drug development consulting 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. Data current as of August 28, 2026.

4,857Companies

222,914Contacts tracked

91,219Verified emails

56,664Mobile numbers

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The 25 largest drug development consulting firms based in the United States

Ranked by team size

Top 25 of 4,857 drug development consulting firms based in the United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Parexel	Raleigh, NC	10001+	19,419	9,824
2	Syneos Health	Morrisville, NC	10001+	18,481	8,617
3	LONZA	Vacaville, CA	10001+	16,287	8,850
4	Fortrea	Research Triangle Park, NC	10001+	10,753	5,357
5	Covance	Madison, WI	10001+	5,244	852
6	SAI Life Sciences LTD	Cambridge, MA	1,001-5,000	3,861	312
7	Worldwide Clinical Trials	Research Triangle Park, NC	1,001-5,000	3,481	2,118
8	Wuxi Apptec	Austin, TX	10001+	3,099	266
9	CURIA	Albuquerque, NM	1,001-5,000	2,959	1,210
10	Medidata Solutions	Boston, MA	1,001-5,000	2,688	991
11	Signant Health	Blue Bell, PA	1,001-5,000	2,078	1,337
12	Arisglobal	Waltham, MA	1,001-5,000	1,903	476
13	Precision For Medicine	Cambridge, MA	1,001-5,000	1,763	1,200
14	TAPI	Woodcliff Lake, NJ	1,001-5,000	1,727	505
15	CYTEL	Cambridge, MA	1,001-5,000	1,571	932
16	Clinchoice	Horsham, PA	1,001-5,000	1,505	880
17	Cambrex	Charles City, IA	1,001-5,000	1,287	933
18	Certara	Blue Bell, PA	1,001-5,000	1,244	876
19	Lambda Therapeutic Research	Las Vegas, NV	1,001-5,000	1,229	399
20	BSP Pharmaceuticals S.P.A	Jersey, NJ	1,001-5,000	1,221	539
21	Norstella	New York Ny, NY	1,001-5,000	1,156	711
22	Avalere Health	Washington, DC	1,001-5,000	1,131	807
23	Inotiv	West Lafayette, IN	1,001-5,000	1,038	529
24	Navitas Life Sciences	Gaithersburg, MD	1,001-5,000	991	275
25	Envision Pharma Group	Powell, OH	1,001-5,000	950	433

Showing 25 of 4,857 drug development consulting firms based in the United States

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Drug development consulting firms based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

BostonLargest hub · 190 HQs

56,664Contacts with mobile numbers

195Emails re-verified in last 30 days

Companies by employee count

1-10

3,041

11-50

1,133

51-200

415

201-500

117

501-1,000

1,001-5,000

10001+

Drug development consulting firms by metro

Metro	Companies
Drug development consulting firms in Boston	190
Drug development consulting firms in New York	165
Drug development consulting firms in San Diego	152
Drug development consulting firms in Cambridge	88
Drug development consulting firms in San Francisco	81
Drug development consulting firms in Raleigh	78
Drug development consulting firms in Chicago	70

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “drug development consulting firms”, with match quality audited by blind human judging, and headquartered in the United States.
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: Contact records re-verify on a rolling cadence; 195 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many drug development consulting firms are there based in the United States?

There are 4,857 drug development consulting firms headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Parexel, headquartered in Raleigh, tops this list with the largest team on record.

Which city has the most drug development consulting firms?

Boston leads with 190 headquartered companies, followed by New York (165) and San Diego (152).

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 91,219 verified decision-maker contacts tracked across these 4,857 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.