Company lists · Data refreshed September 2026

Top 23 Drug development staffing firms based in London, United Kingdom

Name: Drug development staffing firms based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 356 companies tracked

RevenueBase identified 356 drug development staffing firms headquartered in London, United Kingdom as of September 2026 and tracks 8,465 professional contacts across them, including 3,783 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers drug development staffing firms headquartered in London, United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

356Companies

8,465Contacts tracked

3,783Verified emails

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The 23 largest drug development staffing firms based in London, United Kingdom

Ranked by team size

Top 23 of 356 drug development staffing firms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to drug development staffing firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Perceptive INC	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	1,197 contacts →
	Indirect evidence “Expanding on their combined 50-year history, Perceptive provides best-in-class specialist support to global pharmaceutical, biotech, and clinical research organizations, spanning…” Source: RevenueBase Database · checked Sep 28, 2026
2	Apcer Life Sciences	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	501-1,000	1,079 contacts →
	Indirect evidence “APCER Life Sciences, established in 2007, is a trusted global leader in pharmacovigilance, medical information, medical writing, and regulatory affairs.” Source: RevenueBase Database · checked Sep 28, 2026
3	Veramed	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	501-1,000	438 contacts →
	Indirect evidence “Veramed is a Clinical Research Organization (CRO) that provides expert data management, biostatistics and programming services to the pharmaceutical and biotech industry.” Source: RevenueBase Database · checked Sep 28, 2026
4	SRG	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	364 contacts →
	Indirect evidence “SRG delivers next-generation talent solutions that power discovery and shape the future of Life Sciences.” Source: RevenueBase Database · checked Sep 28, 2026
5	EPM Scientific	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	257 contacts →
	Indirect evidence “3D printing.” Source: RevenueBase Database · checked Sep 28, 2026
6	HVIVO	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	214 contacts →
	Strong evidence “hVIVO plc (Ticker: HVO) is a science‑led early‑phase drug development company purpose‑built to meet the growing complexity of modern clinical research.” Source: RevenueBase Database · checked Sep 28, 2026
7	Richmond Pharmacology	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	198 contacts →
	Indirect evidence “At Richmond, we're on a mission to transform healthcare by delivering faster answers and turning hope into tangible solutions.” Source: RevenueBase Database · checked Sep 28, 2026
8	Skills Alliance	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	131 contacts →
	Indirect evidence “Skills Alliance is a leading specialist Global Life Science and STEM workforce solutions company.” Source: RevenueBase Database · checked Sep 28, 2026
9	Discover International	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	118 contacts →
	Indirect evidence “Discover International has a clear vision: to build the most outstanding life sciences recruitment partner in the industry.” Source: RevenueBase Database · checked Sep 28, 2026
10	Thor Companies	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	94 contacts →
	Indirect evidence “Thor Companies® is a specialist recruitment agency that focuses its efforts on sourcing the very best talent across the Life Science, Engineering and Technology industries.” Source: RevenueBase Database · checked Sep 28, 2026
11	Wesolutions	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	77 contacts →
	Indirect evidence “WESolutions was founded by a team of Healthcare professional who believed that the Healthcare sector needed partners in creating cost effective recruitment solutions for the…” Source: RevenueBase Database · checked Sep 28, 2026
12	Biotalent	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	71 contacts →
	Indirect evidence “BioTalent connects the global life sciences and technology community with the talent, leadership and workforce intelligence to push the boundaries of innovation in STEM and…” Source: RevenueBase Database · checked Sep 28, 2026
13	I-Pharm Consulting	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	70 contacts →
	Indirect evidence “Since 2008, i-Pharm’s independent, expert, and ethical approach to procuring talent has helped power the pioneering progress made by Pharmaceutical, Biotech and MedTech companies…” Source: RevenueBase Database · checked Sep 28, 2026
14	Pure Healthcare Group	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	45 contacts →
	Indirect evidence “Pure Healthcare Group is a recruitment service for the healthcare industry.” Source: RevenueBase Database · checked Sep 28, 2026
15	HLX Life Sciences	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	42 contacts →
	Indirect evidence “We are Hlx Life Sciences.” Source: RevenueBase Database · checked Sep 28, 2026
16	POP Science	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	37 contacts →
	Indirect evidence “We are delighted to be a part of Coronado Research.” Source: RevenueBase Database · checked Sep 28, 2026
17	Daytime Healthcare	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	33 contacts →
	Indirect evidence “Daytime Healthcare is a Dynamic Healthcare Recruitment Business with an emphasis on providing highly skilled healthcare professionals into Public and Private sector Healthcare…” Source: RevenueBase Database · checked Sep 28, 2026
18	Walker Cole International	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	33 contacts →
	Indirect evidence “Walker Cole International offers Executive Search, Talent and Interim solutions to the Pharmaceutical, Life Science and Digital Health industries.” Source: RevenueBase Database · checked Sep 28, 2026
19	Kripson Staffing	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	n/a	30 contacts →
	Partial evidence “Kripson Staffing is offering full range of staffing options for, IT, Healthcare (travel), local contract, and direct hire in UK, Europe and US.Our experienced recruiting and…” Source: RevenueBase Database · checked Sep 28, 2026
20	Resources Group	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	30 contacts →
	Indirect evidence “Whether you are looking for a career move or searching for talent in Market Research, Insights or Data Analytics, no-one knows the sector better than Resources Group.” Source: RevenueBase Database · checked Sep 28, 2026
21	Weatherden	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	29 contacts →
	Partial evidence “Weatherden is a global clinical development consultancy helping biotech and pharma realize the full potential of their science and investment.” Source: RevenueBase Database · checked Sep 28, 2026
22	Synergy Medical Recruitment	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	28 contacts →
	Indirect evidence “Since 1997 Synergy Medical has been providing nationwide recruitment support across specialist healthcare sectors; matching the right people to the right roles to deliver the best…” Source: RevenueBase Database · checked Sep 28, 2026
23	Dune Technology LTD	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	25 contacts →
	Partial evidence “We can help you build your dream development team.” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: drug development staffing firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names drug development staffing firms.
Partial evidence: Its own public description names part of drug development staffing firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name drug development staffing firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 23 of 356 drug development staffing firms based in London, United Kingdom

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Drug development staffing firms based in London, United Kingdom at a glance

As of Sep 28, 2026

44.7%Verified-email coverage

23.8Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

214

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 356 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among drug development staffing firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in London, United Kingdom whose own description of what they do matches “drug development staffing firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names drug development staffing firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among drug development staffing firms, and records with no verified work email. Companies headquartered outside London are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 3,783 across the full list. 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.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Drug development staffing firms by metro in the United Kingdom

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names drug development staffing firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

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

RevenueBase identified 356 drug development staffing firms headquartered in London, United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Perceptive INC, headquartered in London, tops this list with the largest team on record.

Which city in the United Kingdom has the most drug development staffing firms?

London leads the United Kingdom with 356 headquartered companies, 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 the top results, verified emails and direct dials included. Upgrading unlocks all 3,783 verified decision-maker contacts tracked across these 356 companies.

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 Smart Search, 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.