Company lists · Data refreshed September 2026

Top 25 Clinical research consulting firms based in Chicago, United States

Name: Clinical research consulting firms based in Chicago, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 76 companies tracked

RevenueBase identified 76 clinical research consulting firms headquartered in Chicago, United States as of September 2026 and tracks 4,243 professional contacts across them, including 2,720 with verified work emails. Across the United States, Boston is the largest hub for this category (158 companies); Chicago has 76.

This list covers clinical research consulting firms headquartered in Chicago, 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 27, 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 27, 2026 86% judged on-target in blind review

76Companies

4,243Contacts tracked

2,720Verified emails

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The 25 largest clinical research consulting firms based in Chicago, United States

Ranked by team size

Top 25 of 76 clinical research consulting firms based in Chicago, United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to clinical research consulting 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	Eversana	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	5,001-10,000	3,149 contacts →
	Indirect evidence “EVERSANA® is a leading independent provider of global services to the life sciences industry.” Source: RevenueBase Database · checked Sep 27, 2026
2	Blackstone Group	Strong evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	51-200	229 contacts →
	Strong evidence “Blackstone Group is a full-service custom marketing research and consulting firm providing clients with actionable insights for over 25 years.” Source: RevenueBase Database · checked Sep 27, 2026
3	IIT Research Institute Iitri	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	51-200	188 contacts →
	Partial evidence “IITRI was founded in 1936 as the research arm of the Illinois Institute of Technology (IIT).” Source: RevenueBase Database · checked Sep 27, 2026
4	Citrus Health Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	51-200	141 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 27, 2026
5	P&k Research	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	201-500	100 contacts →
	Partial evidence “More than 60 years ago, our founders were instrumental in developing the research methods that helped lay the groundwork for sensory science and consumer testing.” Source: RevenueBase Database · checked Sep 27, 2026
6	Eversana Consulting	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	201-500	71 contacts →
	Partial evidence “EVERSANA CONSULTING delivers global consulting services to address challenges across the product lifecycle in the pharmaceutical and biotechnology industries.” Source: RevenueBase Database · checked Sep 27, 2026
7	Great Lakes Clinical Trials, A Flourish Research Site	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	51-200	34 contacts →
	Partial evidence “Great Lakes Clinical Trials is a network of 5 clinical trial centers located throughout the Chicago area, specializing in the testing of new medications, vaccines and treatments…” Source: RevenueBase Database · checked Sep 27, 2026
8	Sword BIO	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	11-50	29 contacts →
	Indirect evidence “Sword Bio is a bioanalytical CRO committed to delivering projects with the best-in-class quality, science, service, and speed.” Source: RevenueBase Database · checked Sep 27, 2026
9	Uptown Research Institute	Strong evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	11-50	19 contacts →
	Strong evidence “The Uptown Research Institute is Chicagoland's premier private clinical trials site.” Source: RevenueBase Database · checked Sep 27, 2026
10	M1 Health	Strong evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	11-50	11 contacts →
	Strong evidence “M1 Health is an Integrated Research Organization IRO focused on delivering excellence in clinical trials and building trust in local communities through its growing number of…” Source: RevenueBase Database · checked Sep 27, 2026
11	Thinkpiece	Partial evidence	Chicago, United StatesHQ checked Sep 27, 2026	11-50	9 contacts →
	Partial evidence “We help tech and healthcare companies break through surface level insights with our “Expertise-First Research Method” so their research shows what’s working, what’s not, and how…” Source: RevenueBase Database · checked Sep 27, 2026
12	Investigator Support Services, INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	11-50	9 contacts →
	Indirect evidence “Investigator Support Services streamlines site selection and optimizes consumer and provider communications.” Source: RevenueBase Database · checked Sep 27, 2026
13	Eagle Clinical Research	Strong evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	11-50	7 contacts →
	Strong evidence “Eagle Clinical Research was founded to carry out reliable and meaningful clinical research for Chicago and Chicagoland residents.” Source: RevenueBase Database · checked Sep 27, 2026
14	Denova Research	Strong evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	1-10	6 contacts →
	Strong evidence “DeNova Research is a clinical research center specializing in the fields of aesthetic medicine, plastic surgery and dermatology.” Source: RevenueBase Database · checked Sep 27, 2026
15	Definitive Health Partners	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	1-10	5 contacts →
	Partial evidence “Definitive Health Partners is a trusted strategic consulting partner that empowers life science companies to ensure their patients have access to transformative therapies.” Source: RevenueBase Database · checked Sep 27, 2026
16	Foodservice IP	Strong evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	1-10	5 contacts →
	Strong evidence “Foodservice IP works one on one with its food and beverage clients to produce: research-based management consulting service, multiclient studies, proprietary research, and more.” Source: RevenueBase Database · checked Sep 27, 2026
17	Extendhealth Consultants INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	1-10	4 contacts →
	Partial evidence “ExtendHealth Consulting delivers strategic value across the healthcare ecosystem – providing expertise when and how you need it.” Source: RevenueBase Database · checked Sep 27, 2026
18	Brand Riffs	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	1-10	3 contacts →
	Partial evidence “From tactical testing of marketing, to more strategic, multi-phase innovation and brand building assignments, Brand Riffs uses proven research tools and proprietary techniques to…” Source: RevenueBase Database · checked Sep 27, 2026
19	Chicago Research Center, INC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	11-50	3 contacts →
	Strong evidence “Since 2005, the Chicago Research Center’s dedicated team of qualified, board certified physicians, licensed clinicians, psychometricians and trained support staff have taken part…” Source: RevenueBase Database · checked Sep 27, 2026
20	Tower Hill Consulting	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	1-10	3 contacts →
	Partial evidence “Most consulting firms deliver recommendations.” Source: RevenueBase Database · checked Sep 27, 2026
21	Supernova Clinical Research, INC	Strong evidence	Chicago, United StatesHQ checked Sep 27, 2026	1-10	2 contacts →
	Strong evidence “Welcome to SuperNOVA Clinical Research, a game-changer in the world of biotech innovation.” Source: RevenueBase Database · checked Sep 27, 2026
22	Oleabio	Strong evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	1-10	2 contacts →
	Strong evidence “OleaBio is a veterinary consulting firm and preclinical contract research organization specializing in advanced surgical models.” Source: RevenueBase Database · checked Sep 27, 2026
23	Loran Marketing Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	11-50	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026
24	The Medical Device Hub, LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	1-10	2 contacts →
	Partial evidence “The Medical Device Hub, LLC is a consulting practice specializing in medical device development and commercialization.” Source: RevenueBase Database · checked Sep 27, 2026
25	HIQ Analytics, LLC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	1-10	1 contacts →
	Indirect evidence 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 research consulting 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 research consulting firms.
Partial evidence: Its own public description names part of clinical research consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name clinical research consulting 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 76 clinical research consulting firms based in Chicago, United States

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Clinical research consulting firms based in Chicago, United States at a glance

As of Sep 27, 2026

64.1%Verified-email coverage

55.8Average contacts per company

1-10Median size (employees)

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

5,001-10,000

Email recency for this list is measured across the whole United States list rather than for Chicago, so it is reported there. Company counts and contact totals on this page are exact for Chicago, over 76 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 clinical research consulting 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.
What qualifies: Companies headquartered in Chicago, United States whose own description of what they do matches “clinical research consulting 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 research consulting 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 research consulting firms, and records with no verified work email. Companies headquartered outside Chicago 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, 2,720 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 research consulting firms by metro in the United States

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 research consulting 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 research consulting firms are there based in Chicago, United States?

RevenueBase identified 76 clinical research consulting firms headquartered in Chicago, 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?

Eversana, headquartered in Chicago, tops this list with the largest team on record.

Which city in the United States has the most clinical research consulting firms?

Boston leads the United States with 158 headquartered companies, followed by New York (153) and San Diego (137). Chicago has 76.

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 2,720 verified decision-maker contacts tracked across these 76 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.