Company lists · Data refreshed September 2026

Top 25 Regulatory affairs consulting firms based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 2,123 companies tracked

RevenueBase identified 2,123 regulatory affairs consulting firms headquartered in the United States as of September 2026 and tracks 20,922 professional contacts across them, including 8,731 with verified work emails and 7,595 with mobile numbers. Washington is the largest hub.

This list covers regulatory affairs 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. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

2,123Companies

20,922Contacts tracked

8,731Verified emails

7,595Mobile numbers

Explore all 2,123 companies → Free signup · no credit card · 500 free credits

The 25 largest regulatory affairs consulting firms based in the United States

Ranked by team size

Top 25 of 2,123 regulatory affairs consulting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names regulatory affairs consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	PropharmaIndirect evidence	Raleigh, NC, United StatesHQ checked Sep 5, 2026	1,001-5,000	2,079
	“At ProPharma, we help pharmaceutical, biotechnology, and medical device companies bring life-changing therapies to market.” Source: company website · checked Sep 5, 2026
2	VeristatPartial evidence	Southborough, MA, United StatesHQ checked Sep 5, 2026	501-1,000	367
	“Veristat is the science-first full-service drug and biologic CRO and consultancy that integrates strategic planning, regulatory expertise, and clinical trial execution to rapidly…” Source: company website · checked Sep 5, 2026
3	Registrar CorpPartial evidence	Hampton, VA, United StatesHQ checked Sep 5, 2026	51-200	317
	“Registrar Corp is your trusted partner helping you navigate global regulatory requirements with expert services, innovative software solutions and comprehensive online compliance…” Source: company website · checked Sep 5, 2026
4	Techsol Life SciencesPartial evidence	Princeton, NJ, United StatesHQ checked Sep 5, 2026	201-500	294
	“Techsol Life Sciences is an integrated clinical development, medical affairs and post-marketing surveillance business solutions provider to global biopharmaceutical, medical…” Source: company website · checked Sep 5, 2026
5	Valsource INCIndirect evidence	Downingtown, PA, United StatesHQ checked Sep 5, 2026	201-500	245
	“Since 1996, ValSource has worked with hundreds of pharmaceutical, biopharma, and medical device organizations around the world.” Source: company website · checked Sep 5, 2026
6	KymanoxIndirect evidence	Morrisville, NC, United StatesHQ checked Sep 5, 2026	201-500	239
	“Kymanox (‘ki-mah-noks’), meaning Ideal Knowledge Transfer, is your trusted partner in advancing life science innovation.” Source: company website · checked Sep 5, 2026
7	Mcra, An Iqvia BusinessPartial evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	51-200	226
	“MCRA, an IQVIA business, is a leading full-service medical device, diagnostics, and biologics CRO and consulting advisory firm helping global healthcare companies maximize the…” Source: company website · checked Sep 5, 2026
8	Canopy Life SciencesIndirect evidence	Danbury, CT, United StatesHQ checked Sep 5, 2026	201-500	222
	“Canopy provides Clinical to Commercial services to 300+ Biotechnology, Pharmaceutical and Medical Device Companies.” Source: company website · checked Sep 5, 2026
9	SAIIndirect evidence	Reading, PA, United StatesHQ checked Sep 5, 2026	201-500	187
	“Welcome to the official SAI Corporate Page.” Source: company website · checked Sep 5, 2026
10	Lachman Consultant ServicesPartial evidence	Westbury, NY, United StatesHQ checked Sep 5, 2026	51-200	179
	“Quality & Compliance \| Regulatory Strategy \| Inspection Readiness & Remediation \| Data Integrity.” Source: company website · checked Sep 5, 2026
11	4c Pharma SolutionsPartial evidence	Piscataway, NJ, United StatesHQ checked Sep 5, 2026	51-200	172
	“A comprehensive global healthcare solutions company specializing in end to end of Pharmacovigilance, Materiovigilance, Medical Information Call Center, Hosting, Regulatory…” Source: company website · checked Sep 5, 2026
12	SSI StrategyIndirect evidence	Parsippany, NJ, United StatesHQ checked Sep 5, 2026	51-200	169
	“At SSI Strategy, we're strategic partners deeply invested in our clients' success.” Source: company website · checked Sep 5, 2026
13	CelegenceStrong evidence	Downers Grove, IL, United StatesHQ checked Sep 5, 2026	51-200	164
	“Celegence provides services and solutions to support the Life Sciences industry with regulatory affairs operations and strategy.” Source: company website · checked Sep 5, 2026
14	G&l ScientificPartial evidence	Madison, NJ, United StatesHQ checked Sep 5, 2026	201-500	155
	“Built upon the strong foundation of delivering decades of industry-leading regulatory and quality services, G&L Scientific has evolved into a leading Integrated Product…” Source: company website · checked Sep 5, 2026
15	Citrus Health GroupIndirect evidence	Chicago, IL, United StatesHQ checked Sep 5, 2026	51-200	141
	“Citrus Health Group is a dynamic, boutique strategic consultancy that supports our clients along the science-to-value continuum to optimize effective commercial development of…” Source: company website · checked Sep 5, 2026
16	ValidantPartial evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	201-500	120
	“Validant has joined forces with our partner consultancy groups to reposition as one global regulatory brand: ELIQUENT Life Sciences.” Source: company website · checked Sep 5, 2026
17	XogenePartial evidence	Englewood, NJ, United StatesHQ checked Sep 5, 2026	51-200	113
	“Offering flexibility, in-depth regulatory knowledge, and technical expertise in the area of Transparency and Clinical Trial disclosure, Xogene offers quality outsourcing of…” Source: company website · checked Sep 5, 2026
18	Opus Regulatory INCStrong evidence	Boston, MA, United StatesHQ checked Sep 5, 2026	51-200	113
	“Opus Regulatory is a niche consulting firm headquartered in the Seaport district of Boston.” Source: company website · checked Sep 5, 2026
19	Ediphy Advisors, LLCIndirect evidence	Birmingham, AL, United StatesHQ checked Sep 5, 2026	51-200	109
	“MedManagement announces the launch of EdiPhy Advisors, a new name for our Physician Advisor & Education Services.” Source: company website · checked Sep 5, 2026
20	Masuu Global SolutionsIndirect evidence	Miami, FL, United StatesHQ checked Sep 5, 2026	201-500	106
	“Masuu with over 280 Subject Matter Experts (SMEs) and a leadership/scientific advisory team featuring former personnel from health authorities like the USFDA, EMA, MHRA, ANVISA…” Source: company website · checked Sep 5, 2026
21	Tunnell Consulting, INCPartial evidence	Berwyn, PA, United StatesHQ checked Sep 5, 2026	51-200	97
	“With a strong focus on the life sciences industry, Tunnell Consulting designs and implements sustainable solutions that improve the operating performance of each unique client we…” Source: company website · checked Sep 5, 2026
22	CMK SelectPartial evidence	Parsippany, NJ, United StatesHQ checked Sep 5, 2026	51-200	90
	“CMK Select is a life sciences consulting partner specializing in strategic guidance and hands on project leadership.” Source: company website · checked Sep 5, 2026
23	NERACPartial evidence	Tolland, CT, United StatesHQ checked Sep 5, 2026	11-50	78
	“WHAT WE DO: We’ve spent the past 60 years as a trusted research partner, medical device regulatory compliance, IP advisory and risk mitigation expert for the biggest brands and…” Source: company website · checked Sep 5, 2026
24	Biologics ConsultingStrong evidence	Alexandria, VA, United StatesHQ checked Sep 5, 2026	51-200	76
	“ABOUT Biologics Consulting is a complete FDA regulatory and product development consulting firm for cell & gene therapy, biologics, pharmaceuticals, and medical devices.” Source: company website · checked Sep 5, 2026
25	ScendeaStrong evidence	Washington, DC, United StatesHQ checked Sep 5, 2026	51-200	76
	“Scendea is an international product development, regulatory, and compliance consulting group serving the pharmaceutical and biotechnology industry.” Source: company website · checked Sep 5, 2026

Showing 25 of 2,123 regulatory affairs consulting firms based in the United States

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Regulatory affairs consulting firms based in the United States at a glance

As of Sep 5, 2026

1-10Median size (employees)

WashingtonLargest hub · 84 HQs

7,595Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

1,543

11-50

431

51-200

109

201-500

501-1,000

1,001-5,000

10001+

Verified emails by last verification

0–30

8,184

31–60

506

61–90

90–180

180+

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 regulatory affairs consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “regulatory affairs consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among regulatory affairs consulting 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 an evidence 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, 8,731 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 5, 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.

Regulatory affairs consulting firms by metro

Regulatory affairs consulting firms in Washington84
Regulatory affairs consulting firms in Boston60
Regulatory affairs consulting firms in New York50
Regulatory affairs consulting firms in San Diego48
Regulatory affairs consulting firms in Raleigh36
Regulatory affairs consulting firms in Chicago27
Regulatory affairs consulting firms in Atlanta25
Regulatory affairs consulting firms in Austin25

Frequently asked

How many regulatory affairs consulting firms are there based in the United States?

RevenueBase identified 2,123 regulatory affairs consulting 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?

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

Which city has the most regulatory affairs consulting firms?

Washington leads with 84 headquartered companies, followed by Boston (60) and New York (50).

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 8,731 verified decision-maker contacts tracked across these 2,123 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 5, 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 SmartSearch, 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.