Company lists · Data refreshed September 2026

Top 22 Clinical trial recruitment firms based in Houston, United States

RevenueBase identified 46 company matches for clinical trial recruitment firms associated with Houston, United States as of September 2026 and tracks 1,094 professional contacts across them, including 242 with verified work emails and 293 with mobile numbers. Across the United States, Miami is the largest hub for this category (66 companies); Houston has 42.

This list covers company matches for clinical trial recruitment firms associated with Houston, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 8, 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 RevenueBase SmartSearch · Exact Recorded Sep 8, 2026 How this list was built
46Companies
1,094Contacts tracked
242Verified emails
293Mobile numbers
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The 22 largest clinical trial recruitment firms based in Houston, United States

Ranked by team size
Top 22 of 46 company matches for clinical trial recruitment firms based in Houston, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 8, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchHouston, TX, United StatesHQ recorded Sep 8, 2026501-1,000590 contacts →

Exact match

“DM Clinical Research is a network of clinical trial investigator sites with headquarters based out of Houston, Texas.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
2Exact matchHouston, TX, United StatesHQ recorded Sep 8, 202651-20088 contacts →

Exact match

“Biopharma Informatic is a Clinical Research Investigator Network which provides clinical trial management for interested Physicians, Medical Practices and Health Care Organization.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
3Exact matchHouston, TX, United StatesHQ recorded Sep 8, 202651-20059 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
4Exact matchHouston, TX, United StatesHQ recorded Sep 8, 202611-5045 contacts →

Exact match

“We are a patient-focused, doctor-driven, physician-integrated network of thought leaders who focus on quality and efficiency in the conduct of clinical research.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
5Exact matchHouston, TX, United StatesHQ recorded Sep 8, 202651-20045 contacts →

Exact match

“Proxima CRO works with the new class of rising stars in drugs, devices, diagnostics and digital therapeutics.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
6Exact matchHouston, TX, United StatesHQ recorded Sep 8, 202651-20027 contacts →

Exact match

“Pioneer Research Solutions, Inc.(PRS) was founded in 2007 with the idea of enlisting community physicians as a nationwide network to conduct clinical research.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
7Exact matchHouston, TX, United StatesHQ recorded Sep 8, 202651-20026 contacts →

Exact match

“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)…”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
8Exact matchHouston, TX, United StatesHQ recorded Sep 8, 202611-5020 contacts →

Exact match

“OUR MISSION Renovatio Clinical delivers innovative treatment options to patients through clinical research and guarantees quick and efficient execution of clinical trial timelines…”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
9Exact matchHouston, TX, United StatesHQ recorded Sep 8, 202611-5017 contacts →

Exact match

“Prolato Clinical Research Center is dedicated to advancing medical innovation through high-quality clinical trials and patient-centered care.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
10Exact matchHouston, TX, United StatesHQ recorded Sep 8, 20261-1014 contacts →

Exact match

“Clinical trials often offer the best hope for many patients whose standard of care is failing.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
11Exact matchHouston, TX, United StatesHQ recorded Sep 8, 202611-5012 contacts →

Exact match

“Does your organization need more nurses?”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
12Exact matchHouston, TX, United StatesHQ recorded Sep 8, 202611-5011 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
13Exact matchHouston, TX, United StatesHQ recorded Sep 8, 202611-509 contacts →

Exact match

“We help recruit patients both from within your database and target new outside patients through targeted digital marketing campaigns.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
14Exact matchHouston, TX, United StatesHQ recorded Sep 8, 202611-507 contacts →

Exact match

“Specializing in clinical trials (phase 2,3, & 4), Synergy Groups Medical brings trusted clinical trial experience to the greater Houston area.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
15Exact matchHouston, TX, United StatesHQ recorded Sep 8, 202611-506 contacts →

Exact match

“Trialwise is a woman-owned, boutique contract research organization (CRO) specializing in early phase clinical studies and niche consulting.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
16Exact matchHouston, TX, United StatesHQ recorded Sep 8, 20261-106 contacts →

Exact match

“Sieve is a B2B SaaS platform leveraging artificial intelligence technology (medical NLP + ML) to enhance operational efficiencies for multiple Clinical Research Stakeholders by…”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
17Exact matchHouston, TX, United StatesHQ recorded Sep 8, 202611-504 contacts →

Exact match

“Precision is the first global precision medicine clinical research services organization, purpose-built to improve the clinical research and development process for new…”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
18Exact matchHouston, TX, United StatesHQ recorded Sep 8, 20261-104 contacts →

Exact match

“At Accelsobio we understand that emerging Biotech & MedTech companies have unique needs, and one-size-fits-all solutions won't cut it.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
19Exact matchHouston, TX, United StatesHQ recorded Sep 8, 20261-103 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
20Exact matchHouston, TX, United StatesHQ recorded Sep 8, 20261-103 contacts →

Exact match

“HERC), established in is an independent, multi-specialty research site that conducts clinical trials for major research pharmaceutical companies for new and approved medications…”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
21Exact matchHouston, TX, United StatesHQ recorded Sep 8, 2026201-5001 contacts →

Exact match

“Our streamlined and organized processes allow us to perform rapid enrollment and fast startup while maintaining a high level of quality source data.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase
22Exact matchHouston, TX, United StatesHQ recorded Sep 8, 20261-101 contacts →

Exact match

“CliniCore International (“CliniCore”) is a value and mission-driven organization with a wealth of domestic and international experience in clinical research.”

Recorded in the RevenueBase company graph · Sep 8, 2026 · View company records in RevenueBase

Showing 22 of 46 clinical trial recruitment firms based in Houston, United States

See the full list, filter by size, metro and specialty, and access 242 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Clinical trial recruitment firms based in Houston, United States at a glance

As of Sep 8, 2026
22.1%Verified-email coverage
26.8%Mobile-number coverage
23.8Average contacts per company
11-50Median size (employees)
Sep 8, 2026Page data refreshed

Companies by employee count

1-10
19
11-50
17
51-200
8
201-500
1
501-1,000
1

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with Houston, United States whose business descriptions match “clinical trial recruitment firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 242 professional contacts with verified work emails across the full matched dataset. 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 8, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “clinical trial recruitment firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many clinical trial recruitment firms are there based in Houston, United States?

RevenueBase identified 46 company matches for clinical trial recruitment firms associated with Houston, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

DM Clinical Research tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most clinical trial recruitment firms?

Miami leads the United States with 66 company records, followed by New York (47) and Boston (43). Houston has 42.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 242 professional contacts with verified work emails tracked across these 46 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 8, 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.