Company lists · Data refreshed September 2026

Top 25 Medical practice research organizations based in the United Kingdom

RevenueBase identified 281 company matches for medical practice research organizations associated with the United Kingdom as of September 2026 and tracks 9,656 professional contacts across them, including 4,012 with verified work emails. London is the largest hub.

This list covers company matches for medical practice research organizations associated with the United Kingdom, 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 15, 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 15, 2026 How this list was built
281Companies
9,656Contacts tracked
4,012Verified emails
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The 25 largest medical practice research organizations based in the United Kingdom

Ranked by team size
Top 25 of 281 company matches for medical practice research organizations based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 15, 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 matchLondon, United KingdomHQ recorded Sep 15, 20261,001-5,0001,197 contacts →

Exact match

“Expanding on their combined 50-year history, Perceptive provides best-in-class specialist support to global pharmaceutical, biotech, and clinical research organizations, spanning…”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
2Exact matchNottingham, United KingdomHQ recorded Sep 15, 20261,001-5,000452 contacts →

Exact match

“Calyx and Invicro are now Perceptive!”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 15, 2026501-1,000438 contacts →

Exact match

“Veramed is a Clinical Research Organization (CRO) that provides expert data management, biostatistics and programming services to the pharmaceutical and biotech industry.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 15, 2026501-1,000387 contacts →

Exact match

“Phastar is an award-winning specialist biometrics and data science CRO, trusted by pharma, biotech, and medical device companies worldwide.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
5Exact matchBlackpool, United KingdomHQ recorded Sep 15, 2026201-500333 contacts →

Exact match

“MAC Clinical Research is a leading full-service, global Contract Research Organisation (CRO) with over 30 years of experience in clinical trial management.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 15, 2026201-500321 contacts →

Exact match

“At WEP Clinical, we operate as a specialist CRO with a proven track record of excellence in designing, managing, and executing Clinical Trials, Expanded Access Programs (EAPs)…”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
7Exact matchMerthyr Tydfil, United KingdomHQ recorded Sep 15, 2026201-500312 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 15, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 15, 202651-200214 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 15, 2026 · View company records in RevenueBase
9Exact matchHorsforth, United KingdomHQ recorded Sep 15, 2026201-500209 contacts →

Exact match

“Interface Clinical Services, an IQVIA business was established over 21 years ago and has grown to become a leading independent clinical services provider, completing clinical…”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
10Exact matchMacclesfield, United KingdomHQ recorded Sep 15, 202651-200208 contacts →

Exact match

“Illingworth Research Group™, a Syneos Health® company, is a leading provider of clinical research home health services, providing highly trained, qualified and experienced…”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 15, 202651-200198 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 15, 2026 · View company records in RevenueBase
12Exact matchHitchin, United KingdomHQ recorded Sep 15, 2026201-500192 contacts →

Exact match

“Quanticate is a leading global data focused clinical research organisation (CRO) primarily focused on the management, analysis and reporting of data from clinical trials and…”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
13Exact matchGlasgow, United KingdomHQ recorded Sep 15, 2026501-1,000136 contacts →

Exact match

“Clintec, an IQVIA company, is an innovative, medium-sized, global Contract Research Organization providing global full and functional service support to the pharmaceutical…”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
14Exact matchManchester, United KingdomHQ recorded Sep 15, 202651-20097 contacts →

Exact match

“The Medicines Evaluation Unit (MEU) Ltd, an IQVIA business, is one of the UK’s leading contract research organisations, a facility where commitment to excellence is paramount.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
15Exact matchEarby, United KingdomHQ recorded Sep 15, 202651-20096 contacts →

Exact match

“Broughton is a global Contract Research Organisation (CRO) partnering with future-focused organisations to bring safe, high-quality products to market across the pharmaceutical…”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
16Exact matchLetchworth Garden City, United KingdomHQ recorded Sep 15, 202651-20095 contacts →

Exact match

“Innovative Trials was built around a simple belief, patient recruitment works better when people feel supported.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
17Exact matchAshford, United KingdomHQ recorded Sep 15, 202611-5094 contacts →

Exact match

“Providing independent medical expert evidence to insurers, healthcare providers, law firms, regulators, and public bodies to help resolve complex clinical negligence claims.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
18Exact matchCambridge, United KingdomHQ recorded Sep 15, 202651-20065 contacts →

Exact match

“We're Cambridge Healthcare Research, the trusted partner for every healthcare decision maker.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 15, 202651-20060 contacts →

Exact match

“OXON Epidemiology is a European full-service Contract Research Organization (CRO) specialised in real-world evidence (RWE) and observational research across all major therapeutic…”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 15, 202651-20057 contacts →

Exact match

“Protas is transforming clinical trials for the benefit of patients worldwide.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
21Exact matchLeeds, United KingdomHQ recorded Sep 15, 202611-5056 contacts →

Exact match

“GRC Health specialises in patient-centred research for all stages of product development and marketing.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 15, 202611-5052 contacts →

Exact match

“Purdie Pascoe is a privately owned market research firm specialising in delivering quality insights and regulatory support to the medical technology industry.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
23Exact matchPrinces Risborough, United KingdomHQ recorded Sep 15, 202611-5048 contacts →

Exact match

“We believe in harnessing science for human good.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
24Exact matchHorwich, United KingdomHQ recorded Sep 15, 202651-20046 contacts →

Exact match

“Our expertise supports clinical trials in over 150 countries worldwide.”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase
25Exact matchRipley, United KingdomHQ recorded Sep 15, 202651-20046 contacts →

Exact match

“Founded in 2003 by Dr Graeme Ladds, PharSafer® is a specialist Contract Research Organisation (CRO) in Global Clinical and Post Marketing Drug Safety, and Medical Services, with a…”

Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase

Showing 25 of 281 medical practice research organizations based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 4,012 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Medical practice research organizations based in the United Kingdom at a glance

As of Sep 15, 2026
41.5%Verified-email coverage
34.4Average contacts per company
11-50Median size (employees)
28.1%Largest-city concentration · London
Sep 15, 2026Page data refreshed

Companies by employee count

1-10
136
11-50
79
51-200
41
201-500
13
501-1,000
4
1,001-5,000
6
5,001-10,000
1
10001+
1

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 281 companies.

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 the United Kingdom whose business descriptions match “medical practice research organizations” 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 4,012 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 15, 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 “medical practice research organizations”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many medical practice research organizations are there based in the United Kingdom?

RevenueBase identified 281 company matches for medical practice research organizations associated with the United Kingdom 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?

Perceptive INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most medical practice research organizations?

London leads with 79 company records, followed by Cambridge (11) and Manchester (10).

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 4,012 professional contacts with verified work emails tracked across these 281 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 15, 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.