Company lists · Data refreshed September 2026
Top 25 Rare disease patient recruitment companies worldwide
RevenueBase identified 920 company matches for rare disease patient recruitment companies worldwide as of September 2026 and tracks 49,494 professional contacts across them, including 21,637 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for rare disease patient recruitment companies worldwide, 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 29, 2026. Country and city lists for rare disease patient recruitment companies follow the table.
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.
The 25 largest rare disease patient recruitment companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 20,530 contacts → | ||||
Exact match “The PPD™ clinical research business of Thermo Fisher Scientific, the world leader in serving science, enables customers to accelerate innovation and drug development through…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 2 | 2,494 contacts → | ||||
Exact match “PSI is a leading full-service global Contract Research Organization whose key strength is predictable patient enrollment across multiple therapeutic areas.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 3 | 1,781 contacts → | ||||
Exact match “Precision for Medicine is an industry-leading global clinical research services organization, purpose-built to improve the clinical research and development process for new…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 4 | 1,778 contacts → | ||||
Exact match “Novotech is a globally recognized full-service clinical research organization (CRO) and scientific advisory company that provides biotech and small- to mid-sized pharma companies…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 5 | 1,043 contacts → | ||||
Exact match “CTI Clinical Trial and Consulting Services is a global, privately held, research service organization, delivering a complete spectrum of clinical trial and consulting services…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 6 | 971 contacts → | ||||
Exact match “Velocity is the world’s leading organization of fully integrated clinical research sites.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 7 | 847 contacts → | ||||
Exact match “CenExel is a leading integrated, wholly owned, nationwide clinical research site network comprised of 18 Centers of Excellence in major metropolitan areas across the U.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 8 | 770 contacts → | ||||
Exact match “MMG is a full-service global health communications group that specializes in patient recruitment and retention.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 9 | 590 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 29, 2026 · View company records in RevenueBase | |||||
| 10 | 568 contacts → | ||||
Exact match “Pharma Medica Research is a full service early phase contract research organization.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 11 | 561 contacts → | ||||
Exact match “Accelerated Enrollment Solutions (AES) is now Trialmed.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 12 | 367 contacts → | ||||
Exact match “Veristat is the science-first full-service drug and biologic CRO and consultancy that integrates strategic planning, regulatory expertise, and clinical trial execution to rapidly…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 13 | 312 contacts → | ||||
Exact match “Our passion for improving patients’ lives motivates us to apply our skills, experience, and knowledge to advance medicine.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 14 | 291 contacts → | ||||
Exact match “Science 37 is a modern clinical research site that delivers trials directly to patients’ homes.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 15 | 264 contacts → | ||||
Exact match “Accellacare delivers clinical trial services to pharmaceutical, biotechnology, medical device industries.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 16 | 254 contacts → | ||||
Exact match “Elligo Health Research is an integrated research organization founded to bridge the gap between cutting-edge clinical trials and the patients who need them-an idea that sparked…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 17 | 214 contacts → | ||||
Exact match “hVIVO plc (Ticker: HVO) is a science‑led early‑phase drug development company purpose‑built to meet the growing complexity of modern clinical research.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 18 | 201 contacts → | ||||
Exact match “EmVenio Clinical Research, a Professional Case Management subsidiary, operates from U.S.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 19 | 198 contacts → | ||||
Exact match “At Richmond, we're on a mission to transform healthcare by delivering faster answers and turning hope into tangible solutions.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 20 | 194 contacts → | ||||
Exact match “As the premier Patient Experience Platform, SubjectWell drives predictable clinical trial patient recruitment, improves patient engagement, and enhances retention by optimizing…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 21 | 189 contacts → | ||||
Exact match “Founded in 2003, CG Life is a specialized pharma agency built for the unique challenges of bringing therapies for rare and hard-to-treat diseases to market, where traditional…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 22 | 186 contacts → | ||||
Exact match “C&R Research is Korea’s first and leading CRO with over 29 years of experience.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 23 | 185 contacts → | ||||
Exact match “P95 Julius Clinical is a global, science-led contract research organization (CRO) supporting clinical development from early-phase trials through late-phase and real-world…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 24 | 171 contacts → | ||||
Exact match “Clinical Trial Media (CTM) is the largest full-service global patient enrollment organization, with three decades of experience supporting pharmaceutical and biotechnology…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 25 | 168 contacts → | ||||
Exact match “Dr.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “rare disease patient recruitment companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 920 rare disease patient recruitment companies worldwide
See the full list, filter by size, metro and specialty, and access 21,637 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Rare disease patient recruitment companies worldwide at a glance
As of Sep 29, 2026Companies by employee count
Email recency is reported on each country list linked below.
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.
- Coverage
- Every country. Country and city lists for rare disease patient recruitment companies are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “rare disease patient recruitment companies” 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. 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 21,637 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 29, 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.
Rare disease patient recruitment companies by location
2 lists · largest firstEvery Rare disease patient recruitment companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 “rare disease patient recruitment companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many rare disease patient recruitment companies are there worldwide?
RevenueBase identified 920 company matches for rare disease patient recruitment companies worldwide 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?
PPD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most rare disease patient recruitment companies?
The United States leads with 442 companies, followed by the United Kingdom (81). Every rare disease patient recruitment companies list by country and city is linked on this page.
Which city has the most rare disease patient recruitment companies?
London leads with 20 company records, followed by New York (15) and Boston (13).
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 21,637 professional contacts with verified work emails tracked across these 920 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 29, 2026.
Ready to reach these companies? Verified emails and direct dials for all 920 rare disease patient recruitment companies worldwide. Start with a free account, no credit card.
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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.
More company lists
Company intelligence · public preview
Top 25 rare disease patient recruitment companies worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 920 matching company records for rare disease patient recruitment companies worldwide, with 49,494 tracked contacts and 21,637 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 29, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 rare disease patient recruitment companies worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  PPDppd.comHQ: Waltham, MA, United StatesReported employees: 10001+ | Waltham, MA, United States | 10001+ | Exact match | 20,530 contacts → |
“The PPD™ clinical research business of Thermo Fisher Scientific, the world leader in serving science, enables customers to accelerate innovation and drug development through…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  PSI CROpsi-cro.comHQ: Zug, SwitzerlandReported employees: 1,001-5,000 | Zug, Switzerland | 1,001-5,000 | Exact match | 2,494 contacts → |
“PSI is a leading full-service global Contract Research Organization whose key strength is predictable patient enrollment across multiple therapeutic areas.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Precision For Medicineprecisionformedicine.comHQ: Bethesda, MD, United StatesReported employees: 1,001-5,000 | Bethesda, MD, United States | 1,001-5,000 | Exact match | 1,781 contacts → |
“Precision for Medicine is an industry-leading global clinical research services organization, purpose-built to improve the clinical research and development process for new…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Novotechnovotech-cro.comHQ: Singapore, AustraliaReported employees: 1,001-5,000 | Singapore, Australia | 1,001-5,000 | Exact match | 1,778 contacts → |
“Novotech is a globally recognized full-service clinical research organization (CRO) and scientific advisory company that provides biotech and small- to mid-sized pharma companies…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  CTI Clinical Trial And Consulting Servicesctifacts.comHQ: Covington, KY, United StatesReported employees: 1,001-5,000 | Covington, KY, United States | 1,001-5,000 | Exact match | 1,043 contacts → |
“CTI Clinical Trial and Consulting Services is a global, privately held, research service organization, delivering a complete spectrum of clinical trial and consulting services…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Velocity Clinical Research, INCvelocityclinical.comHQ: Durham, NC, United StatesReported employees: 1,001-5,000 | Durham, NC, United States | 1,001-5,000 | Exact match | 971 contacts → |
“Velocity is the world’s leading organization of fully integrated clinical research sites.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Cenexelcenexel.comHQ: Salt Lake City, UT, United StatesReported employees: 1,001-5,000 | Salt Lake City, UT, United States | 1,001-5,000 | Exact match | 847 contacts → |
“CenExel is a leading integrated, wholly owned, nationwide clinical research site network comprised of 18 Centers of Excellence in major metropolitan areas across the U.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  MMGmmgct.comHQ: Rockville, MD, United StatesReported employees: Not recorded | Rockville, MD, United States | Not recorded | Exact match | 770 contacts → |
“MMG is a full-service global health communications group that specializes in patient recruitment and retention.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  DM Clinical Researchdmclinical.comHQ: Houston, TX, United StatesReported employees: 501-1,000 | Houston, TX, United States | 501-1,000 | Exact match | 590 contacts → |
“DM Clinical Research is a network of clinical trial investigator sites with headquarters based out of Houston, Texas.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Pharma Medica Research INCpharmamedica.comHQ: Mississauga, ON, CanadaReported employees: 201-500 | Mississauga, ON, Canada | 201-500 | Exact match | 568 contacts → |
“Pharma Medica Research is a full service early phase contract research organization.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Accelerated Enrollment Solutionstrialmed.comHQ: Horsham, PA, United StatesReported employees: 1,001-5,000 | Horsham, PA, United States | 1,001-5,000 | Exact match | 561 contacts → |
“Accelerated Enrollment Solutions (AES) is now Trialmed.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Veristatveristat.comHQ: Southborough, MA, United StatesReported employees: 501-1,000 | Southborough, MA, United States | 501-1,000 | Exact match | 367 contacts → |
“Veristat is the science-first full-service drug and biologic CRO and consultancy that integrates strategic planning, regulatory expertise, and clinical trial execution to rapidly…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Simbec-Orionsimbecorion.comHQ: Merthyr Tydfil, United KingdomReported employees: 201-500 | Merthyr Tydfil, United Kingdom | 201-500 | Exact match | 312 contacts → |
“Our passion for improving patients’ lives motivates us to apply our skills, experience, and knowledge to advance medicine.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Science 37science37.comHQ: Morrisville, NC, United StatesReported employees: 201-500 | Morrisville, NC, United States | 201-500 | Exact match | 291 contacts → |
“Science 37 is a modern clinical research site that delivers trials directly to patients’ homes.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Accellacareaccellacare.com HQ: United StatesReported employees: 501-1,000 | United States | 501-1,000 | Exact match | 264 contacts → |
“Accellacare delivers clinical trial services to pharmaceutical, biotechnology, medical device industries.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Elligo Health Researchelligo.comHQ: Austin, TX, United StatesReported employees: 201-500 | Austin, TX, United States | 201-500 | Exact match | 254 contacts → |
“Elligo Health Research is an integrated research organization founded to bridge the gap between cutting-edge clinical trials and the patients who need them-an idea that sparked…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  HVIVOhvivo.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 214 contacts → |
“hVIVO plc (Ticker: HVO) is a science‑led early‑phase drug development company purpose‑built to meet the growing complexity of modern clinical research.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Emvenioemvenio.comHQ: Denver, CO, United StatesReported employees: 1,001-5,000 | Denver, CO, United States | 1,001-5,000 | Exact match | 201 contacts → |
“EmVenio Clinical Research, a Professional Case Management subsidiary, operates from U.S.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Richmond Pharmacologyrichmondpharmacology.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 198 contacts → |
“At Richmond, we're on a mission to transform healthcare by delivering faster answers and turning hope into tangible solutions.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Subjectwellsubjectwell.comHQ: Austin, TX, United StatesReported employees: 51-200 | Austin, TX, United States | 51-200 | Exact match | 194 contacts → |
“As the premier Patient Experience Platform, SubjectWell drives predictable clinical trial patient recruitment, improves patient engagement, and enhances retention by optimizing…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  CG Lifecglife.comHQ: Chicago, IL, United StatesReported employees: 51-200 | Chicago, IL, United States | 51-200 | Exact match | 189 contacts → |
“Founded in 2003, CG Life is a specialized pharma agency built for the unique challenges of bringing therapies for rare and hard-to-treat diseases to market, where traditional…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  C&r Research INCcnrres.comHQ: Seoul, South KoreaReported employees: 501-1,000 | Seoul, South Korea | 501-1,000 | Exact match | 186 contacts → |
“C&R Research is Korea’s first and leading CRO with over 29 years of experience.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Julius Clinicaljuliusclinical.comHQ: Zeist, NetherlandsReported employees: 201-500 | Zeist, Netherlands | 201-500 | Exact match | 185 contacts → |
“P95 Julius Clinical is a global, science-led contract research organization (CRO) supporting clinical development from early-phase trials through late-phase and real-world…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Clinical Trial Mediaclinicaltrialmedia.comHQ: Hauppauge, NY, United StatesReported employees: 51-200 | Hauppauge, NY, United States | 51-200 | Exact match | 171 contacts → |
“Clinical Trial Media (CTM) is the largest full-service global patient enrollment organization, with three decades of experience supporting pharmaceutical and biotechnology…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Dr. Vince Clinical Researchdrvincecro.comHQ: Overland Park, KS, United StatesReported employees: 201-500 | Overland Park, KS, United States | 201-500 | Exact match | 168 contacts → |
“Dr.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 920 company matches
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Rare disease patient recruitment companies: dataset insights
September 29, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
919 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 920 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 29, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Rare disease patient recruitment companies by location
2 lists · largest firstEvery Rare disease patient recruitment companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for rare disease patient recruitment companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many rare disease patient recruitment companies did RevenueBase find worldwide?
The saved snapshot records 920 matching company records, 49,494 tracked contacts and 21,637 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 29, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 rare disease patient recruitment companies worldwide. Snapshot: September 29, 2026. https://revenuebase.ai/companies/browse/rare-disease-patient-recruitment-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 rare disease patient recruitment companies worldwide
RevenueBase records 920 matching company records for rare disease patient recruitment companies worldwide, with 49,494 tracked contacts and 21,637 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 29, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 rare disease patient recruitment companies worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | PPDppd.com HQ: Waltham, MA, United StatesReported employees: 10001+ | Waltham, MA, United States | 10001+ | Exact match | 20,530 contacts → |
“The PPD™ clinical research business of Thermo Fisher Scientific, the world leader in serving science, enables customers to accelerate innovation and drug development through…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | PSI CROpsi-cro.com HQ: Zug, SwitzerlandReported employees: 1,001-5,000 | Zug, Switzerland | 1,001-5,000 | Exact match | 2,494 contacts → |
“PSI is a leading full-service global Contract Research Organization whose key strength is predictable patient enrollment across multiple therapeutic areas.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Precision For Medicineprecisionformedicine.com HQ: Bethesda, MD, United StatesReported employees: 1,001-5,000 | Bethesda, MD, United States | 1,001-5,000 | Exact match | 1,781 contacts → |
“Precision for Medicine is an industry-leading global clinical research services organization, purpose-built to improve the clinical research and development process for new…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Novotechnovotech-cro.com HQ: Singapore, AustraliaReported employees: 1,001-5,000 | Singapore, Australia | 1,001-5,000 | Exact match | 1,778 contacts → |
“Novotech is a globally recognized full-service clinical research organization (CRO) and scientific advisory company that provides biotech and small- to mid-sized pharma companies…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | CTI Clinical Trial And Consulting Servicesctifacts.com HQ: Covington, KY, United StatesReported employees: 1,001-5,000 | Covington, KY, United States | 1,001-5,000 | Exact match | 1,043 contacts → |
“CTI Clinical Trial and Consulting Services is a global, privately held, research service organization, delivering a complete spectrum of clinical trial and consulting services…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Velocity Clinical Research, INCvelocityclinical.com HQ: Durham, NC, United StatesReported employees: 1,001-5,000 | Durham, NC, United States | 1,001-5,000 | Exact match | 971 contacts → |
“Velocity is the world’s leading organization of fully integrated clinical research sites.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Cenexelcenexel.com HQ: Salt Lake City, UT, United StatesReported employees: 1,001-5,000 | Salt Lake City, UT, United States | 1,001-5,000 | Exact match | 847 contacts → |
“CenExel is a leading integrated, wholly owned, nationwide clinical research site network comprised of 18 Centers of Excellence in major metropolitan areas across the U.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | MMGmmgct.com HQ: Rockville, MD, United StatesReported employees: Not recorded | Rockville, MD, United States | Not recorded | Exact match | 770 contacts → |
“MMG is a full-service global health communications group that specializes in patient recruitment and retention.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | DM Clinical Researchdmclinical.com HQ: Houston, TX, United StatesReported employees: 501-1,000 | Houston, TX, United States | 501-1,000 | Exact match | 590 contacts → |
“DM Clinical Research is a network of clinical trial investigator sites with headquarters based out of Houston, Texas.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Pharma Medica Research INCpharmamedica.com HQ: Mississauga, ON, CanadaReported employees: 201-500 | Mississauga, ON, Canada | 201-500 | Exact match | 568 contacts → |
“Pharma Medica Research is a full service early phase contract research organization.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Accelerated Enrollment Solutionstrialmed.com HQ: Horsham, PA, United StatesReported employees: 1,001-5,000 | Horsham, PA, United States | 1,001-5,000 | Exact match | 561 contacts → |
“Accelerated Enrollment Solutions (AES) is now Trialmed.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Veristatveristat.com HQ: Southborough, MA, United StatesReported employees: 501-1,000 | Southborough, MA, United States | 501-1,000 | Exact match | 367 contacts → |
“Veristat is the science-first full-service drug and biologic CRO and consultancy that integrates strategic planning, regulatory expertise, and clinical trial execution to rapidly…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Simbec-Orionsimbecorion.com HQ: Merthyr Tydfil, United KingdomReported employees: 201-500 | Merthyr Tydfil, United Kingdom | 201-500 | Exact match | 312 contacts → |
“Our passion for improving patients’ lives motivates us to apply our skills, experience, and knowledge to advance medicine.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Science 37science37.com HQ: Morrisville, NC, United StatesReported employees: 201-500 | Morrisville, NC, United States | 201-500 | Exact match | 291 contacts → |
“Science 37 is a modern clinical research site that delivers trials directly to patients’ homes.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Accellacareaccellacare.com HQ: United StatesReported employees: 501-1,000 | United States | 501-1,000 | Exact match | 264 contacts → |
“Accellacare delivers clinical trial services to pharmaceutical, biotechnology, medical device industries.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Elligo Health Researchelligo.com HQ: Austin, TX, United StatesReported employees: 201-500 | Austin, TX, United States | 201-500 | Exact match | 254 contacts → |
“Elligo Health Research is an integrated research organization founded to bridge the gap between cutting-edge clinical trials and the patients who need them-an idea that sparked…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HVIVOhvivo.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 214 contacts → |
“hVIVO plc (Ticker: HVO) is a science‑led early‑phase drug development company purpose‑built to meet the growing complexity of modern clinical research.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Emvenioemvenio.com HQ: Denver, CO, United StatesReported employees: 1,001-5,000 | Denver, CO, United States | 1,001-5,000 | Exact match | 201 contacts → |
“EmVenio Clinical Research, a Professional Case Management subsidiary, operates from U.S.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Richmond Pharmacologyrichmondpharmacology.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 198 contacts → |
“At Richmond, we're on a mission to transform healthcare by delivering faster answers and turning hope into tangible solutions.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Subjectwellsubjectwell.com HQ: Austin, TX, United StatesReported employees: 51-200 | Austin, TX, United States | 51-200 | Exact match | 194 contacts → |
“As the premier Patient Experience Platform, SubjectWell drives predictable clinical trial patient recruitment, improves patient engagement, and enhances retention by optimizing…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | CG Lifecglife.com HQ: Chicago, IL, United StatesReported employees: 51-200 | Chicago, IL, United States | 51-200 | Exact match | 189 contacts → |
“Founded in 2003, CG Life is a specialized pharma agency built for the unique challenges of bringing therapies for rare and hard-to-treat diseases to market, where traditional…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | C&r Research INCcnrres.com HQ: Seoul, South KoreaReported employees: 501-1,000 | Seoul, South Korea | 501-1,000 | Exact match | 186 contacts → |
“C&R Research is Korea’s first and leading CRO with over 29 years of experience.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Julius Clinicaljuliusclinical.com HQ: Zeist, NetherlandsReported employees: 201-500 | Zeist, Netherlands | 201-500 | Exact match | 185 contacts → |
“P95 Julius Clinical is a global, science-led contract research organization (CRO) supporting clinical development from early-phase trials through late-phase and real-world…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Clinical Trial Mediaclinicaltrialmedia.com HQ: Hauppauge, NY, United StatesReported employees: 51-200 | Hauppauge, NY, United States | 51-200 | Exact match | 171 contacts → |
“Clinical Trial Media (CTM) is the largest full-service global patient enrollment organization, with three decades of experience supporting pharmaceutical and biotechnology…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Dr. Vince Clinical Researchdrvincecro.com HQ: Overland Park, KS, United StatesReported employees: 201-500 | Overland Park, KS, United States | 201-500 | Exact match | 168 contacts → |
“Dr.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 920 company matches
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Rare disease patient recruitment companies: dataset insights
September 29, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
919 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 920 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 29, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Rare disease patient recruitment companies by location
2 lists · largest firstEvery Rare disease patient recruitment companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for rare disease patient recruitment companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many rare disease patient recruitment companies did RevenueBase find worldwide?
The saved snapshot records 920 matching company records, 49,494 tracked contacts and 21,637 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 29, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 rare disease patient recruitment companies worldwide. Snapshot: September 29, 2026. https://revenuebase.ai/companies/browse/rare-disease-patient-recruitment-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗