Company lists · Data verified August 2026

Top 25 Epidemiological consulting firms based in the United States

Name: Epidemiological 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 559 companies tracked

There are 559 epidemiological consulting firms headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 7,441 professional contacts across them, including 3,700 with verified work emails and 3,246 with mobile numbers. New York is the largest hub.

This list covers epidemiological 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.

559Companies

7,441Contacts tracked

3,700Verified emails

3,246Mobile numbers

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The 25 largest epidemiological consulting firms based in the United States

Ranked by team size

Top 25 of 559 epidemiological 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	Analysis Group	Boston, MA	1,001-5,000	1,815	1,104
2	Western Ecosystems Technology, Inc. West	Albuquerque, NM	201-500	411	237
3	The Lewin Group	Falls Church, VA	201-500	228	126
4	ICF Macro	Fairfax, VA	5,001-10,000	198	14
5	Gradient	Charlottesville, VA	51-200	158	111
6	Council Of State And Territorial Epidemiologists	Atlanta, GA	51-200	124	71
7	Econometrica, INC	Bethesda, MD	51-200	97	57
8	Neptune And Company, INC	Lakewood, CO	51-200	87	56
9	Inductivehealth	Atlanta, GA	51-200	83	52
10	BLH Technologies, INC	Rockville, MD	51-200	69	30
11	A-G Associates	Columbia, MD	11-50	63	47
12	Sigma Health Consulting, LLC	Mclean, VA	51-200	62	40
13	Pentara Corporation	Millcreek, UT	51-200	60	40
14	Ica, INC	Arlington, VA	51-200	52	23
15	Ihrc, INC	Atlanta, GA	51-200	46	16
16	Market Decisions Research	Portland, ME	11-50	45	17
17	Synectics For Management Decisions, INC	Arlington, VA	51-200	44	13
18	Cirque Analytics	Washington, DC	11-50	41	30
19	159 Solutions, INC	South San Francisco, CA	51-200	38	19
20	Horiana	Berkeley	11-50	32	24
21	Q-Q Research Consultants, LLC	Hialeah, FL	11-50	30	13
22	Medicus Economics, LLC	Boston, MA	11-50	29	26
23	Lecroy & Milligan Associates	Tucson	11-50	29	17
24	Knowli Data Science	Tallahassee, FL	11-50	22	14
25	Triwest Group	Boulder, CO	11-50	22	14

Showing 25 of 559 epidemiological consulting firms based in the United States

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Epidemiological consulting firms based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 19 HQs

3,246Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

371

11-50

146

51-200

201-500

1,001-5,000

5,001-10,000

10001+

Epidemiological consulting firms by metro

Metro	Companies
Epidemiological consulting firms in New York	19
Epidemiological consulting firms in Washington	16
Epidemiological consulting firms in Atlanta	14
Epidemiological consulting firms in Boston	11
Epidemiological consulting firms in Los Angeles	9
Epidemiological consulting firms in San Francisco	8
Epidemiological consulting firms in Austin	8
Epidemiological consulting firms in Miami	8

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 “epidemiological 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; 0 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 epidemiological consulting firms are there based in the United States?

There are 559 epidemiological consulting firms headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Analysis Group, headquartered in Boston, tops this list with the largest team on record.

Which city has the most epidemiological consulting firms?

New York leads with 19 headquartered companies, followed by Washington (16) and Atlanta (14).

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 3,700 verified decision-maker contacts tracked across these 559 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.