Company lists · Data refreshed October 2026

Top 25 Clinical trial compliance firms based in the United Kingdom

RevenueBase identified 635 company matches for clinical trial compliance firms associated with the United Kingdom as of October 2026 and tracks 17,599 professional contacts across them, including 8,694 with verified work emails. London is the largest hub.

This list covers company matches for clinical trial compliance firms 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 October 9, 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 Oct 9, 2026 How this list was built
635Companies
17,599Contacts tracked
8,694Verified emails
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The 25 largest clinical trial compliance firms based in the United Kingdom

Ranked by team size
Top 25 of 635 company matches for clinical trial compliance firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 9, 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 matchCraigavon, United KingdomHQ recorded Oct 9, 20265,001-10,0004,686 contacts →

Exact match

“Partnering to Advance Human Health A unique culture delivering exceptional solutions: Almac is a financially secure, privately owned organisation with 7,800+ employees globally.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Oct 9, 20261,001-5,0001,238 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 · Oct 9, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Oct 9, 2026501-1,0001,044 contacts →

Exact match

“APCER Life Sciences, established in 2007, is a trusted global leader in pharmacovigilance, medical information, medical writing, and regulatory affairs.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Oct 9, 2026501-1,000514 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 · Oct 9, 2026 · View company records in RevenueBase
5Exact matchNottingham, United KingdomHQ recorded Oct 9, 20261,001-5,000424 contacts →

Exact match

“Calyx and Invicro are now Perceptive!”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
6Exact matchBurton-on-trent, United KingdomHQ recorded Oct 9, 2026501-1,000416 contacts →

Exact match

“Clinigen combines market-leading clinical trial supplies such as packaging and labelling, global storage and distribution, comparator sourcing, as well as biological sample…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Oct 9, 2026501-1,000386 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 · Oct 9, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Oct 9, 2026501-1,000359 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 · Oct 9, 2026 · View company records in RevenueBase
9Exact matchBlackpool, United KingdomHQ recorded Oct 9, 2026201-500317 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 · Oct 9, 2026 · View company records in RevenueBase
10Exact matchWilmslow, United KingdomHQ recorded Oct 9, 20261,001-5,000313 contacts →

Exact match

“The Citation Group offer unrivalled compliance and quality services to over businesses across the UK, Australia, New Zealand, and Canada.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
11Exact matchMerthyr Tydfil, United KingdomHQ recorded Oct 9, 2026201-500308 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 · Oct 9, 2026 · View company records in RevenueBase
12Exact matchLiverpool, United KingdomHQ recorded Oct 9, 2026501-1,000303 contacts →

Exact match

“FutureMeds is an independent, fully-owned European Site Network and DCT service provider dedicated to running patient-centric clinical trials and delivering quality data for the…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Oct 9, 202651-200235 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 · Oct 9, 2026 · View company records in RevenueBase
14Exact matchMacclesfield, United KingdomHQ recorded Oct 9, 202651-200195 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 · Oct 9, 2026 · View company records in RevenueBase
15Exact matchHitchin, United KingdomHQ recorded Oct 9, 2026201-500183 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 · Oct 9, 2026 · View company records in RevenueBase
16Exact matchRuislip, United KingdomHQ recorded Oct 9, 202651-200152 contacts →

Exact match

“We are Vigilare BioPharma, a global Regulatory partner for Pharmaceuticals, Generics, Consumer Healthcare Products and Medical Devices.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
17Exact matchGlasgow, United KingdomHQ recorded Oct 9, 2026501-1,000137 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 · Oct 9, 2026 · View company records in RevenueBase
18Exact matchBracknell, United KingdomHQ recorded Oct 9, 202651-200132 contacts →

Exact match

“We’re on a mission to make life better for patients taking part in clinical trials around the world-and for the caregivers who support them.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
19Exact matchLetchworth Garden City, United KingdomHQ recorded Oct 9, 202651-200107 contacts →

Exact match

“Bringing your product to market is complex; DLRC helps simplify the journey.”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
20Exact matchLetchworth Garden City, United KingdomHQ recorded Oct 9, 202651-200100 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 · Oct 9, 2026 · View company records in RevenueBase
21Exact matchEarby, United KingdomHQ recorded Oct 9, 202651-20097 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 · Oct 9, 2026 · View company records in RevenueBase
22Exact matchHartley Wintney, United KingdomHQ recorded Oct 9, 2026501-1,00088 contacts →

Exact match

“TMC is a global pharma services company, partnering with small to mid-sized biotech and pharma companies to accelerate drug development timelines and maximise value across the…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
23Exact matchAshford, United KingdomHQ recorded Oct 9, 202611-5078 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 · Oct 9, 2026 · View company records in RevenueBase
24Exact matchCamberley, United KingdomHQ recorded Oct 9, 202651-20068 contacts →

Exact match

“ADAMAS Consulting is a global specialist consultancy offering a full range of independent GCP, GVP, GLP, CSC and GMP Quality Assurance and Quality Management services on a global…”

Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Oct 9, 202651-20068 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 · Oct 9, 2026 · View company records in RevenueBase

Showing 25 of 635 clinical trial compliance firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 8,694 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Clinical trial compliance firms based in the United Kingdom at a glance

As of Oct 9, 2026
49.4%Verified-email coverage
27.7Average contacts per company
1-10Median size (employees)
23.5%Largest-city concentration · London
Oct 9, 2026Page data refreshed

Companies by employee count

1-10
427
11-50
126
51-200
52
201-500
13
501-1,000
9
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 635 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 “clinical trial compliance 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 8,694 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 October 9, 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.

Clinical trial compliance firms by metro

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 compliance firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many clinical trial compliance firms are there based in the United Kingdom?

RevenueBase identified 635 company matches for clinical trial compliance firms associated with the United Kingdom as of October 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?

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

Which city has the most clinical trial compliance firms?

London leads with 149 company records, followed by Cambridge (14) and Manchester (14).

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 8,694 professional contacts with verified work emails tracked across these 635 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 October 9, 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.