Company lists · Data refreshed September 2026

Top 25 Drug development staffing firms based in the United Kingdom

RevenueBase identified 1,142 company matches for drug development staffing firms associated with the United Kingdom as of September 2026 and tracks 27,295 professional contacts across them, including 11,970 with verified work emails. London is the largest hub.

This list covers company matches for drug development staffing 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 28, 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 28, 2026 How this list was built
1,142Companies
27,295Contacts tracked
11,970Verified emails
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The 25 largest drug development staffing firms based in the United Kingdom

Ranked by team size
Top 25 of 1,142 company matches for drug development staffing firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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 Sep 28, 20265,001-10,0004,577 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 · Sep 28, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 28, 2026501-1,0001,079 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 · Sep 28, 2026 · View company records in RevenueBase
4Exact matchNottingham, United KingdomHQ recorded Sep 28, 2026501-1,000582 contacts →

Exact match

“At Sygnature Discovery, a global drug discovery CRO, we create exceptional scientific outcomes.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchCambridge, United KingdomHQ recorded Sep 28, 2026501-1,000521 contacts →

Exact match

“Founded in 2005, o2h discovery is a Contract Research Organisation which has an integrated drug discovery platform operating from our state-of-the-art research centre in India and…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchNottingham, United KingdomHQ recorded Sep 28, 20261,001-5,000452 contacts →

Exact match

“Calyx and Invicro are now Perceptive!”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 28, 20261,001-5,000364 contacts →

Exact match

“SRG delivers next-generation talent solutions that power discovery and shape the future of Life Sciences.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchSutton, United KingdomHQ recorded Sep 28, 2026201-500355 contacts →

Exact match

“A24 Group is a leading international provider of medical staffing and personnel management services.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchHuddersfield, United KingdomHQ recorded Sep 28, 2026201-500323 contacts →

Exact match

“Our Approach Major Recruitment offers 34 years of experience within multi-specialist recruitment.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchMerthyr Tydfil, United KingdomHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 28, 20261,001-5,000257 contacts →

Exact match

“3D printing.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchUk, United KingdomHQ recorded Sep 28, 202651-200227 contacts →

Exact match

“We have been providing recruitment services to Life Sciences, Renewable Energy, Heavy Lift, Data Centre and IT clients in more than 30 countries since 1992.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
15Exact matchHigh Peak, United KingdomHQ recorded Sep 28, 2026201-500209 contacts →

Exact match

“Concept Life Sciences is a knowledge-based, science-led and customer-focused contract research and manufacturing organisation with world-leading expertise in the pharmaceutical…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchWhiteley, United KingdomHQ recorded Sep 28, 2026501-1,000209 contacts →

Exact match

“Always Ahead.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchMacclesfield, United KingdomHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
18Exact matchCity Of London, United KingdomHQ recorded Sep 28, 202651-200203 contacts →

Exact match

“At Proclinical Staffing, our life science recruitment services support our partners with permanent and contract vacancies by connecting them with specialist talent across the…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
20Exact matchHitchin, United KingdomHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
21Exact matchChesterfield, United KingdomHQ recorded Sep 28, 202651-200173 contacts →

Exact match

“CK Group has officially rebranded to Talentmark.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchLuton, United KingdomHQ recorded Sep 28, 2026201-500161 contacts →

Exact match

“With over 30 years experience of serving clients Internationally and filling their IT and Life Sciences staffing vacancies, both Contract and Permanent, you can be assured we will…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchRugby, United KingdomHQ recorded Sep 28, 2026501-1,000160 contacts →

Exact match

“Part of Uniphar, we are the strategic recruitment and outsourced partner for pharma, medtech, and biotech companies looking to maximise their commercial success through tailored…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchEdinburgh, United KingdomHQ recorded Sep 28, 2026201-500155 contacts →

Exact match

“We are a leading provider of outsourced commercial, medical and recruitment services to pharmaceutical, biotech and healthcare companies.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchGlasgow, United KingdomHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase

Showing 25 of 1,142 drug development staffing firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 11,970 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Drug development staffing firms based in the United Kingdom at a glance

As of Sep 28, 2026
43.9%Verified-email coverage
23.9Average contacts per company
1-10Median size (employees)
31.2%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
635
11-50
336
51-200
114
201-500
29
501-1,000
11
1,001-5,000
9
5,001-10,000
3
10001+
2

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 1,142 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 “drug development staffing 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 11,970 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 28, 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 “drug development staffing firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many drug development staffing firms are there based in the United Kingdom?

RevenueBase identified 1,142 company matches for drug development staffing 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?

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

Which city has the most drug development staffing firms?

London leads with 356 company records, followed by Manchester (33) and Leeds (27).

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 11,970 professional contacts with verified work emails tracked across these 1,142 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 28, 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.