Company lists · Data refreshed September 2026

Top 25 Pharmaceutical research outsourcing based in the United Kingdom

Name: Pharmaceutical research outsourcing based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 445 companies tracked

RevenueBase identified 445 pharmaceutical research outsourcing headquartered in the United Kingdom as of September 2026 and tracks 18,131 professional contacts across them, including 8,909 with verified work emails and 2,282 with mobile numbers. London is the largest hub.

This list covers pharmaceutical research outsourcing headquartered in the 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 5, 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 5, 2026 86% judged on-target in blind review

445Companies

18,131Contacts tracked

8,909Verified emails

2,282Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest pharmaceutical research outsourcing based in the United Kingdom

Ranked by team size

Top 25 of 445 pharmaceutical research outsourcing based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to pharmaceutical research outsourcing: 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	Almac Group	Indirect evidence	Craigavon, United KingdomHQ checked Sep 5, 2026	5,001-10,000	4,577 contacts →
	Indirect evidence “Partnering to Advance Human Health A unique culture delivering exceptional solutions: Almac is a financially secure, privately owned organisation with 7,800+ employees globally.” Source: RevenueBase Database · checked Sep 5, 2026
2	Perceptive INC	Strong evidence	London, United KingdomHQ checked Sep 5, 2026	1,001-5,000	1,197 contacts →
	Strong 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 5, 2026
3	Sygnature Discovery	Indirect evidence	Nottingham, United KingdomHQ checked Sep 5, 2026	501-1,000	582 contacts →
	Indirect evidence “At Sygnature Discovery, a global drug discovery CRO, we create exceptional scientific outcomes.” Source: RevenueBase Database · checked Sep 5, 2026
4	O2h Discovery	Partial evidence	Cambridge, United KingdomHQ checked Sep 5, 2026	501-1,000	521 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 5, 2026
5	CALYX	Indirect evidence	Nottingham, United KingdomHQ checked Sep 5, 2026	1,001-5,000	452 contacts →
	Indirect evidence “Calyx and Invicro are now Perceptive!” Source: RevenueBase Database · checked Sep 5, 2026
6	Veramed	Strong evidence	London, United KingdomHQ checked Sep 5, 2026	501-1,000	438 contacts →
	Strong 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 5, 2026
7	Clinigen Clinical Supplies Management	Indirect evidence	Burton-on-trent, United KingdomHQ checked Sep 5, 2026	501-1,000	405 contacts →
	Indirect evidence “Clinigen combines market-leading clinical trial supplies such as packaging and labelling, global storage and distribution, comparator sourcing, as well as biological sample…” Source: RevenueBase Database · checked Sep 5, 2026
8	Phastar	Indirect evidence	London, United KingdomHQ checked Sep 5, 2026	501-1,000	387 contacts →
	Indirect evidence “Phastar is an award-winning specialist biometrics and data science CRO, trusted by pharma, biotech, and medical device companies worldwide.” Source: RevenueBase Database · checked Sep 5, 2026
9	MAC Clinical Research	Partial evidence	Blackpool, United KingdomHQ checked Sep 5, 2026	201-500	333 contacts →
	Partial evidence “MAC Clinical Research is a leading full-service, global Contract Research Organisation (CRO) with over 30 years of experience in clinical trial management.” Source: RevenueBase Database · checked Sep 5, 2026
10	WEP Clinical	Indirect evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	321 contacts →
	Indirect evidence “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)…” Source: RevenueBase Database · checked Sep 5, 2026
11	Simbec-Orion	Indirect evidence	Merthyr Tydfil, United KingdomHQ checked Sep 5, 2026	201-500	312 contacts →
	Indirect evidence “Our passion for improving patients’ lives motivates us to apply our skills, experience, and knowledge to advance medicine.” Source: RevenueBase Database · checked Sep 5, 2026
12	Hammersmith Medicines Research LTD	Partial evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	230 contacts →
	Partial evidence “HMR is a Contract Research Organisation (CRO).” Source: RevenueBase Database · checked Sep 5, 2026
13	HVIVO	Partial evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	214 contacts →
	Partial 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 5, 2026
14	Concept Life Sciences	Strong evidence	High Peak, United KingdomHQ checked Sep 5, 2026	201-500	209 contacts →
	Strong evidence “Concept Life Sciences is a knowledge-based, science-led and customer-focused contract research and manufacturing organisation with world-leading expertise in the pharmaceutical…” Source: RevenueBase Database · checked Sep 5, 2026
15	Illingworth Research Group A Syneos Health Company	Partial evidence	Macclesfield, United KingdomHQ checked Sep 5, 2026	51-200	208 contacts →
	Partial evidence “Illingworth Research Group™, a Syneos Health® company, is a leading provider of clinical research home health services, providing highly trained, qualified and experienced…” Source: RevenueBase Database · checked Sep 5, 2026
16	Richmond Pharmacology	Indirect evidence	London, United KingdomHQ checked Sep 5, 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 5, 2026
17	Wasdell Group	Strong evidence	Swindon, United KingdomHQ checked Sep 5, 2026	501-1,000	192 contacts →
	Strong evidence “The Wasdell Group provides the pharmaceutical and nutraceutical industries with solutions to a range of outsourcing requirements.” Source: RevenueBase Database · checked Sep 5, 2026
18	Quanticate	Partial evidence	Hitchin, United KingdomHQ checked Sep 5, 2026	201-500	192 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 5, 2026
19	CHASE	Partial evidence	Edinburgh, United KingdomHQ checked Sep 5, 2026	201-500	155 contacts →
	Partial evidence “We are a leading provider of outsourced commercial, medical and recruitment services to pharmaceutical, biotech and healthcare companies.” Source: RevenueBase Database · checked Sep 5, 2026
20	Clintec	Strong evidence	Glasgow, United KingdomHQ checked Sep 5, 2026	501-1,000	136 contacts →
	Strong evidence “Clintec, an IQVIA company, is an innovative, medium-sized, global Contract Research Organization providing global full and functional service support to the pharmaceutical…” Source: RevenueBase Database · checked Sep 5, 2026
21	Adelphi Group	Partial evidence	Macclesfield, United KingdomHQ checked Sep 5, 2026	501-1,000	123 contacts →
	Partial evidence “The Adelphi provides a wide range of strategic support services and consulting for global pharmaceutical clients.” Source: RevenueBase Database · checked Sep 5, 2026
22	Transpharmation LTD	Partial evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	119 contacts →
	Partial evidence “Transpharmation is a contract research organisation led by scientists.” Source: RevenueBase Database · checked Sep 5, 2026
23	Huntingdon Life Sciences	Indirect evidence	Huntingdon, United KingdomHQ checked Sep 5, 2026	1,001-5,000	106 contacts →
	Indirect evidence “Huntingdon Life Sciences was founded in 1952.” Source: RevenueBase Database · checked Sep 5, 2026
24	Arcinova	Partial evidence	Alnwick, United KingdomHQ checked Sep 5, 2026	51-200	102 contacts →
	Partial evidence “Arcinova, A Quotient Sciences Company, is dedicated to providing innovative contract research, development, and manufacturing services.” Source: RevenueBase Database · checked Sep 5, 2026
25	Medicines Evaluation Unit Ltd, An Iqvia Business	Partial evidence	Manchester, United KingdomHQ checked Sep 5, 2026	51-200	97 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 5, 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: pharmaceutical research outsourcing. 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 pharmaceutical research outsourcing.
Partial evidence: Its own public description names part of pharmaceutical research outsourcing, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name pharmaceutical research outsourcing. 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 25 of 445 pharmaceutical research outsourcing based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 8,909 reachable decision-makers.

Free signup · no credit card

View the full list →

Pharmaceutical research outsourcing based in the United Kingdom at a glance

As of Sep 5, 2026

49.1%Verified-email coverage

12.6%Mobile-number coverage

40.7Average contacts per company

1-10Median size (employees)

25.2%Largest-city concentration · London

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

226

11-50

126

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

8,3880–30

48631–60

361–90

590–180

27180+

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 pharmaceutical research outsourcing, 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 the United Kingdom whose own description of what they do matches “pharmaceutical research outsourcing”. 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 pharmaceutical research outsourcing), 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 pharmaceutical research outsourcing, and records with no verified work email. Companies headquartered outside United Kingdom 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, 8,909 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 5, 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.

Pharmaceutical research outsourcing by metro

Pharmaceutical research outsourcing in London112

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 pharmaceutical research outsourcing, 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 pharmaceutical research outsourcing are there based in the United Kingdom?

RevenueBase identified 445 pharmaceutical research outsourcing headquartered in the 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?

Almac Group, headquartered in Craigavon, tops this list with the largest team on record.

Which city has the most pharmaceutical research outsourcing?

London leads with 112 headquartered companies, followed by Cambridge (14) and Nottingham (14).

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 8,909 verified decision-maker contacts tracked across these 445 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 5, 2026.

Ready to reach these companies? Verified emails and direct dials for all 445 pharmaceutical research outsourcing based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Pharmaceutical research outsourcing by geography

Browse the directory

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.