Company lists · Data refreshed September 2026
Top 25 Patient recruitment software companies based in the United States
RevenueBase identified 736 patient recruitment software companies headquartered in the United States as of September 2026 and tracks 64,155 professional contacts across them, including 28,412 with verified work emails. San Francisco is the largest hub.
This list covers patient recruitment software companies headquartered in the 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 29, 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.
The 25 largest patient recruitment software companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 20,530 contacts → | ||||
Indirect evidence “The PPD™ clinical research business of Thermo Fisher Scientific, the world leader in serving science, enables customers to accelerate innovation and drug development through…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 4,708 contacts → | ||||
Indirect evidence “PRA is now an ICON plc company.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 3,790 contacts → | ||||
Indirect evidence “Clario, part of Thermo Fisher Scientific, is a leading provider of endpoint data solutions to the life sciences industry.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 2,704 contacts → | ||||
Indirect evidence “Medidata is powering smarter treatments and healthier people through digital solutions to support clinical trials.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 2,083 contacts → | ||||
Indirect evidence “For 25+ years, Signant Health has been pioneering solutions and methodologies that propel clinical research programs toward regulatory success.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,781 contacts → | ||||
Indirect evidence “Precision for Medicine is an industry-leading global clinical research services organization, purpose-built to improve the clinical research and development process for new…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,293 contacts → | ||||
Indirect evidence “ERT, the global clinical endpoint technology leader, and Bioclinica, a technological and scientific leader in medical imaging, is now the combined company of Clario.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,255 contacts → | ||||
Indirect evidence “Suvoda is a global clinical trial technology company, now strengthened by our merger with Greenphire.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 990 contacts → | ||||
Indirect evidence “Navitas Life Sciences is a global Clinical Research partner with over 35 years of expertise in Clinical, Regulatory, Safety, and Data Management solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 985 contacts → | ||||
Partial evidence “AssistRx has engineered the perfect blend of technology and talent to provide life sciences organizations with an advanced therapy initiation and patient support solution that…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 971 contacts → | ||||
Indirect evidence “Velocity is the world’s leading organization of fully integrated clinical research sites.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 960 contacts → | ||||
Indirect evidence “Advanced Clinical is a clinical development and strategic resourcing organization committed to providing a better clinical experience across the drug development journey.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 770 contacts → | ||||
Strong evidence “MMG is a full-service global health communications group that specializes in patient recruitment and retention.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 614 contacts → | ||||
Indirect evidence “Centauri Health Solutions aims to attract and retain the industry’s top talent as we continue to create and deliver the most flexible and innovative tools in the market.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 590 contacts → | ||||
Indirect evidence “DM Clinical Research is a network of clinical trial investigator sites with headquarters based out of Houston, Texas.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 561 contacts → | ||||
Indirect evidence “Accelerated Enrollment Solutions (AES) is now Trialmed.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 475 contacts → | ||||
Indirect evidence “At Citeline (a Norstella company), we are a global leader in clinical trial intelligence, data, and insights for the life sciences and pharmaceutical industries.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 455 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 389 contacts → | ||||
Indirect evidence “Sitero is a next-generation, site-focused clinical research organization (CRO) for life sciences and institutional research organizations that helps get treatments to market safer…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 387 contacts → | ||||
Partial evidence “4G Clinical’s suite of innovative RTSM and clinical supply optimization software provides the right-sized support for any phase or trial complexity.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 370 contacts → | ||||
Partial evidence “nference leverages the top academic minds, world-class researchers, and real-time access to multimodal, patient-level data to accelerate drug development innovation, generate…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 348 contacts → | ||||
Partial evidence “Medable's mission is to get effective therapies to patients faster.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 322 contacts → | ||||
Indirect evidence “YPrime simplifies clinical trials with eCOA, IRT, and eConsent solutions that combine speed, flexibility, and quality.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 301 contacts → | ||||
Partial evidence “Clinical ink is the global life science company that brings data, technology, and patient-centric research together.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 295 contacts → | ||||
Indirect evidence “Florence is a purpose-built platform that connects sponsors and sites to accelerate clinical trials, improve operational capacity, and reduce risk.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
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: patient recruitment software companies. 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 patient recruitment software companies.
- Partial evidence
- Its own public description names part of patient recruitment software companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name patient recruitment software companies. 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 736 patient recruitment software companies based in the United States
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Patient recruitment software companies based in the United States at a glance
As of Sep 29, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 736 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 patient recruitment software companies, 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 the United States whose own description of what they do matches “patient recruitment software companies”. 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 patient recruitment software companies), 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 patient recruitment software companies, and records with no verified work email. Companies headquartered outside United States 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, 28,412 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 29, 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.
Patient recruitment software companies by metro
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 patient recruitment software companies, 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 patient recruitment software companies are there based in the United States?
RevenueBase identified 736 patient recruitment software companies headquartered in the 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?
PPD, headquartered in Waltham, tops this list with the largest team on record.
Which city has the most patient recruitment software companies?
San Francisco leads with 31 headquartered companies, followed by New York (30) and Boston (23).
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 28,412 verified decision-maker contacts tracked across these 736 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 29, 2026.
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Patient recruitment software companies by geography
- Patient recruitment software companies based in New York, United States
- Patient recruitment software companies based in San Francisco, United States
- Patient recruitment software companies based in Australia
- Patient recruitment software companies based in Canada
- Patient recruitment software companies based in France
- Patient recruitment software companies based in Germany
- Patient recruitment software companies based in India
- Patient recruitment software companies based in the United Kingdom
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.
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- Patient recruitment software companies based in New York, United States
- Patient recruitment software companies based in San Francisco, United States
- Patient recruitment software companies based in Australia
- Patient recruitment software companies based in Canada
- Patient recruitment software companies based in France
- Patient recruitment software companies based in Germany