Company lists · Data refreshed September 2026

Top 25 Pharmaceutical testing services companies based in the United Kingdom

Name: Pharmaceutical testing services companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 15, 2026 232 companies tracked

RevenueBase identified 232 pharmaceutical testing services companies headquartered in the United Kingdom as of September 2026 and tracks 11,154 professional contacts across them, including 6,455 with verified work emails. London is the largest hub.

This list covers pharmaceutical testing services companies 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 15, 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 15, 2026 86% judged on-target in blind review

232Companies

11,154Contacts tracked

6,455Verified emails

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The 25 largest pharmaceutical testing services companies based in the United Kingdom

Ranked by team size

Top 25 of 232 pharmaceutical testing services companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 15, 2026. RevenueBase Smart Search rates how each company's information relates to pharmaceutical testing services companies: 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 15, 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 15, 2026
2	Perceptive INC	Partial evidence	London, United KingdomHQ checked Sep 15, 2026	1,001-5,000	1,197 contacts →
	Partial 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 15, 2026
3	LGC	Indirect evidence	London, United KingdomHQ checked Sep 15, 2026	1,001-5,000	1,137 contacts →
	Indirect evidence “LGC is a global leader in life sciences, diagnostics and analytical solutions.” Source: RevenueBase Database · checked Sep 15, 2026
4	CALYX	Indirect evidence	Nottingham, United KingdomHQ checked Sep 15, 2026	1,001-5,000	452 contacts →
	Indirect evidence “Calyx and Invicro are now Perceptive!” Source: RevenueBase Database · checked Sep 15, 2026
5	Cyprotex	Indirect evidence	Macclesfield, United KingdomHQ checked Sep 15, 2026	51-200	192 contacts →
	Indirect evidence “Founded in Cyprotex has grown to become an industry leader in in vitro and in silico ADME-Tox.” Source: RevenueBase Database · checked Sep 15, 2026
6	Arcinova	Indirect evidence	Alnwick, United KingdomHQ checked Sep 15, 2026	51-200	102 contacts →
	Indirect evidence “Arcinova, A Quotient Sciences Company, is dedicated to providing innovative contract research, development, and manufacturing services.” Source: RevenueBase Database · checked Sep 15, 2026
7	Intertek Melbourn	Partial evidence	Cambridge, United KingdomHQ checked Sep 15, 2026	201-500	99 contacts →
	Partial evidence “A leading provider of pharmaceutical analysis and formulation support with 30+ years of experience in inhaled product development and Good Manufacturing Practice (GMP) compliant…” Source: RevenueBase Database · checked Sep 15, 2026
8	Domainex	Partial evidence	Saffron Walden, United KingdomHQ checked Sep 15, 2026	51-200	97 contacts →
	Partial evidence “Domainex is a fully integrated drug discovery service company based near Cambridge, UK serving pharmaceutical, biotechnology, academic and patient foundations globally.” Source: RevenueBase Database · checked Sep 15, 2026
9	Broughton	Partial evidence	Earby, United KingdomHQ checked Sep 15, 2026	51-200	96 contacts →
	Partial evidence “Broughton is a global Contract Research Organisation (CRO) partnering with future-focused organisations to bring safe, high-quality products to market across the pharmaceutical…” Source: RevenueBase Database · checked Sep 15, 2026
10	IPS Pharma	Partial evidence	West Molesey, United KingdomHQ checked Sep 15, 2026	51-200	91 contacts →
	Partial evidence “IPS Pharma is an independent international pharmaceutical services company operating in three main areas: Unlicensed medicines (Unlicensed Imports and Specials), Clinical Trials…” Source: RevenueBase Database · checked Sep 15, 2026
11	GFA	Indirect evidence	Ely, United KingdomHQ checked Sep 15, 2026	11-50	76 contacts →
	Indirect evidence “In September 2015, GFA became Envigo.” Source: RevenueBase Database · checked Sep 15, 2026
12	Normec Latis Scientific	Indirect evidence	Crayford, United KingdomHQ checked Sep 15, 2026	51-200	72 contacts →
	Indirect evidence “Normec Latis Scientific is a market leading provider of laboratory services for a wide range of industries.” Source: RevenueBase Database · checked Sep 15, 2026
13	Butterworth Laboratories	Indirect evidence	Teddington, United KingdomHQ checked Sep 15, 2026	51-200	71 contacts →
	Indirect evidence “Excellence in Analytical Chemistry Since 1974 With 50 years of experience, Butterworth Laboratories remains a fully independent UK contract analytical service that provides…” Source: RevenueBase Database · checked Sep 15, 2026
14	Adamas Consulting	Indirect evidence	Camberley, United KingdomHQ checked Sep 15, 2026	51-200	68 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 15, 2026
15	Wickham Micro Limited	Partial evidence	Gosport, United KingdomHQ checked Sep 15, 2026	51-200	65 contacts →
	Partial evidence “Wickham Micro Ltd, A Cormica Lab, is a GMP / GLP compliant contract testing laboratory based in the UK.” Source: RevenueBase Database · checked Sep 15, 2026
16	TMC Pharma Services LTD	Indirect evidence	Hartley Wintney, United KingdomHQ checked Sep 15, 2026	501-1,000	63 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 15, 2026
17	CEMAS	Indirect evidence	Wokingham, United KingdomHQ checked Sep 15, 2026	51-200	63 contacts →
	Indirect evidence “CEMAS is an independent analytical laboratory with over 35 years’ experience supporting the agrochemical, biocide and life science sectors.” Source: RevenueBase Database · checked Sep 15, 2026
18	Malvern Panalytical Pharmaceuticals	Indirect evidence	Malvern, United KingdomHQ checked Sep 15, 2026	1,001-5,000	62 contacts →
	Indirect evidence “We are Malvern Panalytical.” Source: RevenueBase Database · checked Sep 15, 2026
19	Biopharma Group	Indirect evidence	Winchester, United KingdomHQ checked Sep 15, 2026	51-200	61 contacts →
	Indirect evidence “Biopharma Group has dedicated divisions covering the UK, France, Ireland, and USA.” Source: RevenueBase Database · checked Sep 15, 2026
20	ONE Scientific A Tentamus Company	Partial evidence	Bristol, United KingdomHQ checked Sep 15, 2026	11-50	61 contacts →
	Partial evidence “One Scientific - A Tentamus Company is an independent food and water testing laboratory, UKAS accredited (No.” Source: RevenueBase Database · checked Sep 15, 2026
21	Seda Pharmaceutical Development & Clinical Manufacturing Services	Partial evidence	Cheadle, United KingdomHQ checked Sep 15, 2026	11-50	60 contacts →
	Partial evidence “Seda Pharmaceutical Development Services provide Integrated Pharmaceutical Development and Clinical Pharmacology services and consultancy to the Pharma and Biotechnology…” Source: RevenueBase Database · checked Sep 15, 2026
22	Labcorp Limited	Indirect evidence	Princes Risborough, United KingdomHQ checked Sep 15, 2026	11-50	48 contacts →
	Indirect evidence “We believe in harnessing science for human good.” Source: RevenueBase Database · checked Sep 15, 2026
23	BDD	Indirect evidence	84 Castle Street, United KingdomHQ checked Sep 15, 2026	51-200	46 contacts →
	Indirect evidence “BDD combines drug delivery expertise and clinical capabilities to accelerate product development pipelines, enable life cycle management and create new value-added products.” Source: RevenueBase Database · checked Sep 15, 2026
24	EPP Edinburgh Pharmaceutical Processes LTD	Indirect evidence	Penicuik, United KingdomHQ checked Sep 15, 2026	11-50	44 contacts →
	Indirect evidence “Your GLP Contract Research Organisation of Choice EPP specialises in analytical and research & development to help companies achieve product registration around the world with…” Source: RevenueBase Database · checked Sep 15, 2026
25	Pharmidex	Indirect evidence	London, United KingdomHQ checked Sep 15, 2026	11-50	39 contacts →
	Indirect evidence “Pharmidex is a UK-based, GLP and GCP-compliant preclinical Contract Research Organisation (CRO) founded in 2002.” Source: RevenueBase Database · checked Sep 15, 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 testing services companies. 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 testing services companies.
Partial evidence: Its own public description names part of pharmaceutical testing services companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name pharmaceutical testing services companies. 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 232 pharmaceutical testing services companies based in the United Kingdom

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Pharmaceutical testing services companies based in the United Kingdom at a glance

As of Sep 15, 2026

57.9%Verified-email coverage

48.1Average contacts per company

11-50Median size (employees)

12.1%Largest-city concentration · London

Sep 15, 2026Page data refreshed

Companies by employee count

1-10

105

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 232 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 pharmaceutical testing services companies, 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 testing services companies”. 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 testing services companies), 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 testing services companies, 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, 6,455 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 15, 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 testing services companies by metro

Pharmaceutical testing services companies in London28

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 testing services companies, 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 testing services companies are there based in the United Kingdom?

RevenueBase identified 232 pharmaceutical testing services companies 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 testing services companies?

London leads with 28 headquartered companies, followed by Cambridge (7) and Manchester (7).

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 6,455 verified decision-maker contacts tracked across these 232 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 15, 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.