Company lists · Data refreshed September 2026

Top 25 Biopharmaceutical contract research organizations based in Houston, United States

Name: Biopharmaceutical contract research organizations based in Houston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 66 companies tracked

RevenueBase identified 66 biopharmaceutical contract research organizations headquartered in Houston, United States as of September 2026 and tracks 2,048 professional contacts across them, including 427 with verified work emails. San Diego is the largest hub.

This list covers biopharmaceutical contract research organizations headquartered in Houston, 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 16, 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 16, 2026 86% judged on-target in blind review

66Companies

2,048Contacts tracked

427Verified emails

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The 25 largest biopharmaceutical contract research organizations based in Houston, United States

Ranked by team size

Top 25 of 66 biopharmaceutical contract research organizations based in Houston, United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to biopharmaceutical contract research organizations: 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	DM Clinical Research	Partial evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	501-1,000	590 contacts →
	Partial evidence “DM Clinical Research is a network of clinical trial investigator sites with headquarters based out of Houston, Texas.” Source: RevenueBase Database · checked Sep 16, 2026
2	Pharm-Olam, LLC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	501-1,000	561 contacts →
	Indirect evidence “Pharm-Olam is now Allucent.” Source: RevenueBase Database · checked Sep 16, 2026
3	EAGLE	Indirect evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	51-200	112 contacts →
	Indirect evidence “Eagle Analytical is an FDA- and DEA-registered, A2LA ISO 17025-accredited laboratory that provides analytical chemistry, microbiological testing, consulting, and technical…” Source: RevenueBase Database · checked Sep 16, 2026
4	Packgene Biotech, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	201-500	59 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
5	Medsource NOW Ergomed	Partial evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	51-200	59 contacts →
	Partial evidence “MedSource, now part of Ergomed, is an award-winning clinical research organization (CRO) that delivers high-quality clinical trials through strong relationships and specializes in…” Source: RevenueBase Database · checked Sep 16, 2026
6	Avance Biosciences, INC	Strong evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	51-200	57 contacts →
	Strong evidence “Avance Biosciences is a leading Contract Research Organization (CRO) and Contract Testing Organization (CTO) providing CGMP and GLP-compliant analytical and bioanalytical services…” Source: RevenueBase Database · checked Sep 16, 2026
7	Audubon Bioscience	Partial evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	51-200	50 contacts →
	Partial evidence “Audubon Bioscience is an innovative biomedical research services provider.” Source: RevenueBase Database · checked Sep 16, 2026
8	Proxima CRO	Indirect evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	51-200	45 contacts →
	Indirect evidence “Proxima CRO works with the new class of rising stars in drugs, devices, diagnostics and digital therapeutics.” Source: RevenueBase Database · checked Sep 16, 2026
9	Clinical Trial Network, LLC	Partial evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	n/a	37 contacts →
	Partial evidence “Clinical Trial Network offers quality medical attention to the Houston area, while gathering data to generate industry-leading clinical research to pharmaceutical, bio-technology…” Source: RevenueBase Database · checked Sep 16, 2026
10	Labtopia, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	51-200	27 contacts →
	Indirect evidence “Labtopia is a technical services company providing staffing, consulting, training and informatics.” Source: RevenueBase Database · checked Sep 16, 2026
11	Pioneer Research Solutions, INC	Partial evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	51-200	27 contacts →
	Partial evidence “Pioneer Research Solutions, Inc.(PRS) was founded in 2007 with the idea of enlisting community physicians as a nationwide network to conduct clinical research.” Source: RevenueBase Database · checked Sep 16, 2026
12	CEBIS	Partial evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	51-200	26 contacts →
	Partial evidence “CEBIS, a full-service CRO headquartered in Houston, Texas, will provide a comprehensive integrated solution for clinical research (including start-up to CSR, phase I to IV)…” Source: RevenueBase Database · checked Sep 16, 2026
13	Renovatio Clinical	Partial evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	11-50	20 contacts →
	Partial evidence “OUR MISSION Renovatio Clinical delivers innovative treatment options to patients through clinical research and guarantees quick and efficient execution of clinical trial timelines…” Source: RevenueBase Database · checked Sep 16, 2026
14	K2bio	Strong evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	11-50	14 contacts →
	Strong evidence “K2bio is a Preclinical Contract Research Organization (CRO) located in Houston Texas.” Source: RevenueBase Database · checked Sep 16, 2026
15	HGI Clinical	Indirect evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	11-50	11 contacts →
	Indirect evidence “HGI Clinical is a relationship focused CRO with not only a wide range of therapeutic experience, but also experience with investigational product types, study designs and…” Source: RevenueBase Database · checked Sep 16, 2026
16	Lightsource Research LLC	Partial evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	1-10	10 contacts →
	Partial evidence “LSR is a research services firm supporting clinical product research and development.” Source: RevenueBase Database · checked Sep 16, 2026
17	Trialwise, INC	Strong evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	11-50	6 contacts →
	Strong evidence “Trialwise is a woman-owned, boutique contract research organization (CRO) specializing in early phase clinical studies and niche consulting.” Source: RevenueBase Database · checked Sep 16, 2026
18	Apocell, Inc. NOW Precision For Medicine	Partial evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	11-50	4 contacts →
	Partial evidence “Precision is the first global precision medicine clinical research services organization, purpose-built to improve the clinical research and development process for new…” Source: RevenueBase Database · checked Sep 16, 2026
19	Accelsobio	Indirect evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	1-10	4 contacts →
	Indirect evidence “At Accelsobio we understand that emerging Biotech & MedTech companies have unique needs, and one-size-fits-all solutions won't cut it.” Source: RevenueBase Database · checked Sep 16, 2026
20	Comprehensive Research Associates	Indirect evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	1-10	3 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
21	Roger Trinh Talent Solutions	Indirect evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	1-10	2 contacts →
	Indirect evidence “Your Dedicated Partner in Staffing Solutions Roger Trinh is a full-service employment firm that focuses on job placement in the life sciences and health industries.” Source: RevenueBase Database · checked Sep 16, 2026
22	Trio Clinical Trials LLC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	201-500	1 contacts →
	Indirect evidence “Our streamlined and organized processes allow us to perform rapid enrollment and fast startup while maintaining a high level of quality source data.” Source: RevenueBase Database · checked Sep 16, 2026
23	Aurora Pharmaceutical Consulting	Indirect evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	1-10	1 contacts →
	Indirect evidence “Aurora Pharmaceutical Consulting is a certified minority and woman-owned, small disadvantaged business located in Houston, TX.” Source: RevenueBase Database · checked Sep 16, 2026
24	Etcetera Bioprocess Services, LLC	Strong evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	1-10	1 contacts →
	Strong evidence “Introducing Etcetera BioProcess Services, LLC: Serving the biopharmaceutical, biotechnology, biologics and supporting industries by providing quality contract and consulting…” Source: RevenueBase Database · checked Sep 16, 2026
25	Corallis Consulting	Indirect evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	1-10	1 contacts →
	Indirect evidence “We work hands-on with executive teams of biotech and life science companies that are experiencing significant growth in their R&D and clinical assets.” Source: RevenueBase Database · checked Sep 16, 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: biopharmaceutical contract research organizations. 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 biopharmaceutical contract research organizations.
Partial evidence: Its own public description names part of biopharmaceutical contract research organizations, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name biopharmaceutical contract research organizations. 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 66 biopharmaceutical contract research organizations based in Houston, United States

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Biopharmaceutical contract research organizations based in Houston, United States at a glance

As of Sep 16, 2026

20.8%Verified-email coverage

31.0Average contacts per company

1-10Median size (employees)

218.2%Largest-city concentration · San Diego

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole United States list rather than for Houston, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 66 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 biopharmaceutical contract research organizations, 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 Houston, United States whose own description of what they do matches “biopharmaceutical contract research organizations”. 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 biopharmaceutical contract research organizations), 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 biopharmaceutical contract research organizations, and records with no verified work email. Companies headquartered outside Houston 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, 427 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 16, 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.

Biopharmaceutical contract research organizations 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 biopharmaceutical contract research organizations, 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 biopharmaceutical contract research organizations are there based in Houston, United States?

RevenueBase identified 66 biopharmaceutical contract research organizations headquartered in Houston, 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?

DM Clinical Research, headquartered in Houston, tops this list with the largest team on record.

Which city has the most biopharmaceutical contract research organizations?

San Diego leads with 144 headquartered companies, followed by Boston (125) and New York (106).

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 427 verified decision-maker contacts tracked across these 66 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 16, 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.