Company lists · Data refreshed September 2026

Top 25 Regulatory affairs consulting services based in Washington, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 55 companies tracked

RevenueBase identified 55 regulatory affairs consulting services headquartered in Washington, United States as of September 2026 and tracks 971 professional contacts across them, including 429 with verified work emails. Boston is the largest hub.

This list covers regulatory affairs consulting services headquartered in Washington, 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 21, 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 21, 2026 86% judged on-target in blind review

55Companies

971Contacts tracked

429Verified emails

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The 25 largest regulatory affairs consulting services based in Washington, United States

Ranked by team size

Top 25 of 55 regulatory affairs consulting services based in Washington, United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to regulatory affairs consulting services: 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	Mcra, An Iqvia Business	Partial evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	51-200	226 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 21, 2026
2	Public & Government Affairs At Edelman	Partial evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	201-500	121 contacts →
	Partial evidence “Edelman’s public and government affairs team of consultants are trusted and experienced public affairs advisors-including former government officials, political advisors, policy…” Source: RevenueBase Database · checked Sep 21, 2026
3	Scendea	Strong evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	51-200	76 contacts →
	Strong evidence “Scendea is an international product development, regulatory, and compliance consulting group serving the pharmaceutical and biotechnology industry.” Source: RevenueBase Database · checked Sep 21, 2026
4	Oriel Stat A Matrix	Partial evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	11-50	62 contacts →
	Partial evidence “Oriel STAT-A-MATRIX has joined forces with our Validant Group partners to reposition as one global regulatory brand: ELIQUENT Life Sciences.” Source: RevenueBase Database · checked Sep 21, 2026
5	NDA Partners, A Propharma Company	Strong evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	51-200	53 contacts →
	Strong evidence “NDA Partners, a ProPharma Company, is a life sciences management consulting organization focused on providing product development and regulatory services to the pharmaceutical…” Source: RevenueBase Database · checked Sep 21, 2026
6	Carmen Group	Strong evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	51-200	51 contacts →
	Strong evidence “Carmen Group is Washington’s leading government affairs consulting firm.” Source: RevenueBase Database · checked Sep 21, 2026
7	Olsson Frank Weeda Terman Matz PC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	11-50	49 contacts →
	Indirect evidence “Olsson Frank Weeda Terman Matz PC The nation’s premier FDA, USDA, and health care law firm, serving clients before federal agencies, courts, and Congress.” Source: RevenueBase Database · checked Sep 21, 2026
8	Jeffrey J. Kimbell & Associates	Indirect evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	11-50	31 contacts →
	Indirect evidence “Jeffrey J.” Source: RevenueBase Database · checked Sep 21, 2026
9	Todd Strategy Group	Partial evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	1-10	28 contacts →
	Partial evidence “The Todd Strategy Group (TSG), founded in 2014, is a boutique Federal government affairs firm.” Source: RevenueBase Database · checked Sep 21, 2026
10	The Acta Group	Partial evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	11-50	19 contacts →
	Partial evidence “The Acta Group (Acta) is a global consulting firm established to control the spiraling costs and inefficiencies encountered by clients seeking approvals to market chemicals…” Source: RevenueBase Database · checked Sep 21, 2026
11	The Weinberg Group	Partial evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	51-200	17 contacts →
	Partial evidence “The Weinberg Group, a ProPharma Group company, is the global leader in regulatory and compliance services, with headquarters in Washington, D.C.” Source: RevenueBase Database · checked Sep 21, 2026
12	Greenleaf Health, INC	Partial evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	11-50	14 contacts →
	Partial evidence “Greenleaf Health has joined forces with our Validant Group partners to reposition as one global regulatory brand: ELIQUENT Life Sciences.” Source: RevenueBase Database · checked Sep 21, 2026
13	TSG Consulting	Partial evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	51-200	11 contacts →
	Partial evidence “For over 30 years, TSG has provided companies around the world with regulatory guidance and scientific expertise.” Source: RevenueBase Database · checked Sep 21, 2026
14	Kleinfeld, Kaplan & Becker, LLP	Indirect evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	11-50	10 contacts →
	Indirect evidence “Kleinfeld, Kaplan & Becker is one of the most distinguished and experienced law firms in the country specializing in FDA law.” Source: RevenueBase Database · checked Sep 21, 2026
15	Assemble	Indirect evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	1-10	6 contacts →
	Indirect evidence “We provide experienced counsel to advocacy organizations and the pharmaceutical and biotech industries.” Source: RevenueBase Database · checked Sep 21, 2026
16	Smart Policy Group	Partial evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	1-10	5 contacts →
	Partial evidence “SMART Policy Group's team (SPG) has extensive experience and knowledge about the processes and leverage points in federal and state policy and regulatory actions, reflecting…” Source: RevenueBase Database · checked Sep 21, 2026
17	Massie Partners	Strong evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	1-10	5 contacts →
	Strong evidence “Massie Partners is a bicameral, bipartisan government affairs consulting firm that ensures its clients receive personalized strategic advice and attention.” Source: RevenueBase Database · checked Sep 21, 2026
18	Capitol Partners, INC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	1-10	5 contacts →
	Indirect evidence “Capitol Partners, Inc, is a full service, Washington, D.C.” Source: RevenueBase Database · checked Sep 21, 2026
19	KPM Group DC	Partial evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	1-10	4 contacts →
	Partial evidence “KPM Group provides strategic guidance to clients in need of a range of government affairs solutions to drive business success.” Source: RevenueBase Database · checked Sep 21, 2026
20	Innovative Policy, Pllc	Strong evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	1-10	4 contacts →
	Strong evidence “Innovative Policy provides government affairs, public policy, and strategic consulting services to help clients navigate Washington and make a lasting impact.” Source: RevenueBase Database · checked Sep 21, 2026
21	Indigo Hill Strategies	Strong evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	1-10	4 contacts →
	Strong evidence “Indigo Hill Strategies is a boutique government affairs and public policy consulting firm that helps mission driven organizations navigate the federal legislative and regulatory…” Source: RevenueBase Database · checked Sep 21, 2026
22	Aegis LLC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	1-10	4 contacts →
	Indirect evidence “AEGIS (Anne Esposito Government Insights & Strategies) has a proven track record in policy advocacy, strategic communications, and issue management.” Source: RevenueBase Database · checked Sep 21, 2026
23	Smartpharma LLC	Partial evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	1-10	4 contacts →
	Partial evidence “SmartPharma specializes in commercial and strategic consulting for emerging pharmaceutical companies, big pharma, and investors, focused on products in development.” Source: RevenueBase Database · checked Sep 21, 2026
24	Brassard Pesticide Regulatory Solutions	Indirect evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	1-10	2 contacts →
	Indirect evidence “As a Washington DC based company, we have a combined total of 73 years’ experience working in U.S.” Source: RevenueBase Database · checked Sep 21, 2026
25	Origin Advocacy	Indirect evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	1-10	2 contacts →
	Indirect evidence “Origin is a Washington, D.C.” Source: RevenueBase Database · checked Sep 21, 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: regulatory affairs consulting services. 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 regulatory affairs consulting services.
Partial evidence: Its own public description names part of regulatory affairs consulting services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name regulatory affairs consulting services. 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 55 regulatory affairs consulting services based in Washington, United States

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Regulatory affairs consulting services based in Washington, United States at a glance

As of Sep 21, 2026

44.2%Verified-email coverage

17.7Average contacts per company

1-10Median size (employees)

132.7%Largest-city concentration · Boston

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole United States list rather than for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 55 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 regulatory affairs consulting services, 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 Washington, United States whose own description of what they do matches “regulatory affairs consulting services”. 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 regulatory affairs consulting services), 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 regulatory affairs consulting services, and records with no verified work email. Companies headquartered outside Washington 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, 429 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 21, 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 services by metro in the United States

Regulatory affairs consulting services in Boston73
Regulatory affairs consulting services in San Diego56
Regulatory affairs consulting services in Washington55
Regulatory affairs consulting services in New York48
Regulatory affairs consulting services in Raleigh42
Regulatory affairs consulting services in Chicago32
Regulatory affairs consulting services in San Francisco26
Regulatory affairs consulting services in Philadelphia25

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 regulatory affairs consulting services, 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 regulatory affairs consulting services are there based in Washington, United States?

RevenueBase identified 55 regulatory affairs consulting services headquartered in Washington, 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?

Mcra, An Iqvia Business, headquartered in Washington, tops this list with the largest team on record.

Which city has the most regulatory affairs consulting services?

Boston leads with 73 headquartered companies, followed by San Diego (56) and Washington (55).

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 429 verified decision-maker contacts tracked across these 55 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 21, 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.