Company lists · Data refreshed September 2026

Top 25 Oncology trial recruitment firms based in the United Kingdom

RevenueBase identified 120 company matches for oncology trial recruitment firms associated with the United Kingdom as of September 2026 and tracks 5,577 professional contacts across them, including 1,894 with verified work emails. London is the largest hub.

This list covers company matches for oncology trial recruitment 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 September 29, 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 29, 2026 How this list was built
120Companies
5,577Contacts tracked
1,894Verified emails
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The 25 largest oncology trial recruitment firms based in the United Kingdom

Ranked by team size
Top 25 of 120 company matches for oncology trial recruitment firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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 29, 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 29, 2026 · View company records in RevenueBase
2Exact matchNottingham, United KingdomHQ recorded Sep 29, 20261,001-5,000452 contacts →

Exact match

“Calyx and Invicro are now Perceptive!”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
4Exact matchMerthyr Tydfil, United KingdomHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
6Exact matchMacclesfield, United KingdomHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
8Exact matchBracknell, United KingdomHQ recorded Sep 29, 202651-200139 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 · Sep 29, 2026 · View company records in RevenueBase
9Exact matchLetchworth Garden City, United KingdomHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
10Exact matchBelfast, United KingdomHQ recorded Sep 29, 202611-5042 contacts →

Exact match

“ARC's purpose is to expedite access to precision medicine clinical trials for patients globally.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 29, 202651-20040 contacts →

Exact match

“Ellipses Pharma is an international drug development company, focused exclusively on the advancement of innovative cancer treatments through the clinic.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12Exact matchSurrey, United KingdomHQ recorded Sep 29, 202611-5036 contacts →

Exact match

“Founded in 2019, Apsida Life Science is a specialist recruitment business Headquartered in Surrey, with offices in London UK, Boston USA and Pretoria, SA.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13Exact matchIpswich, United KingdomHQ recorded Sep 29, 202651-20035 contacts →

Exact match

“End-to-end CRO services Strategic consultation for all aspects of your trial Customizing an optimal trial design Fit-for-purpose data End-to-end patient focused services Quick…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14Exact matchReading, United KingdomHQ recorded Sep 29, 202611-5032 contacts →

Exact match

“Global Perspectives, an IQVIA business, specialize in engaging large numbers of hard-to-reach patients, healthcare professionals and payers to take part in scientific studies.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15Exact matchMilton Keynes, United KingdomHQ recorded Sep 29, 202651-20025 contacts →

Exact match

“Orphan Reach was a leading Contract Research Organization (CRO) designed to navigate the complexity of trials in orphan indications.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchDartford, United KingdomHQ recorded Sep 29, 202651-20025 contacts →

Exact match

“Clinvigilant Research is a leading provider of comprehensive services to the life sciences industry, specializing in Contract Research Organization (CRO) services, eClinical…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17Exact matchBirmingham, United KingdomHQ recorded Sep 29, 202611-5024 contacts →

Exact match

“A not-for-profit company, any surplus income is reinvested for blood cancer patients’ benefit.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5023 contacts →

Exact match

“ROKC is an innovative CRO specialising in the bespoke design, management and delivery of Pan European multi-centre clinical trials to commercial, academic and non governmental…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19Exact matchBerkhamsted, United KingdomHQ recorded Sep 29, 202611-5021 contacts →

Exact match

“Founded in 2017, Verbatim Pharma is a specialist recruitment partner built exclusively for the global Pharma Services industry.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20Exact matchBrighton, United KingdomHQ recorded Sep 29, 202611-5020 contacts →

Exact match

“Upsilon Global provide consultancy advice and experts to the clinical research industry, supporting clinical trials around the world.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21Exact matchWelwyn Garden City, United KingdomHQ recorded Sep 29, 202611-5018 contacts →

Exact match

“PHARMExcel is an award-winning, ISO 9001:2015 certified, full-service Contract Research Organisation (CRO) providing a flexible and innovative approach to clinical trial delivery.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22Exact matchPeterborough, United KingdomHQ recorded Sep 29, 202651-20015 contacts →

Exact match

“About Expertise & Technology Simplified!”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5012 contacts →

Exact match

“Paspigioni is a full-service contract research organisation dedicated to excellence in clinical trials of pharmaceutical, biotech, and medical devices.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24Exact matchBelfast, United KingdomHQ recorded Sep 29, 202611-5012 contacts →

Exact match

“Since our establishment in 2009, O4 Research has been providing novel, intelligent Clinical Research Solutions proven to deliver studies for our Pharmaceutical, Biotech and…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Sep 29, 202611-5011 contacts →

Exact match

“Tailored Clinical Research Solutions (TCRS) is a CRO whose founders have detailed knowledge of the clinical research landscape across Europe and the US.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

Showing 25 of 120 oncology trial recruitment firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,894 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Oncology trial recruitment firms based in the United Kingdom at a glance

As of Sep 29, 2026
34.0%Verified-email coverage
46.5Average contacts per company
1-10Median size (employees)
27.5%Largest-city concentration · London
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
62
11-50
30
51-200
17
201-500
5
1,001-5,000
5
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 120 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 “oncology trial recruitment firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 1,894 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.

Oncology trial recruitment 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 “oncology trial recruitment firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many oncology trial recruitment firms are there based in the United Kingdom?

RevenueBase identified 120 company matches for oncology trial recruitment firms 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 oncology trial recruitment firms?

London leads with 33 company records, followed by Manchester (6) and Cambridge (4).

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 1,894 professional contacts with verified work emails tracked across these 120 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.

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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.