Company lists · Data refreshed September 2026

Top 25 Pharmaceutical development services companies based in the United Kingdom

Name: Pharmaceutical development 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 17, 2026 850 companies tracked

RevenueBase identified 850 pharmaceutical development services companies headquartered in the United Kingdom as of September 2026 and tracks 33,209 professional contacts across them, including 14,722 with verified work emails. London is the largest hub.

This list covers pharmaceutical development 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 17, 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 17, 2026 86% judged on-target in blind review

850Companies

33,209Contacts tracked

14,722Verified emails

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

Ranked by team size

Top 25 of 850 pharmaceutical development services companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to pharmaceutical development 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 17, 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 17, 2026
2	Primevigilance	Indirect evidence	Guildford, United KingdomHQ checked Sep 17, 2026	1,001-5,000	1,295 contacts →
	Indirect evidence “PrimeVigilance, an Ergomed Group company, was established in 2008 by Dr.” Source: RevenueBase Database · checked Sep 17, 2026
3	Perceptive INC	Partial evidence	London, United KingdomHQ checked Sep 17, 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 17, 2026
4	Apcer Life Sciences	Indirect evidence	London, United KingdomHQ checked Sep 17, 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 17, 2026
5	Envision Pharma Group	Indirect evidence	Wilmslow, United KingdomHQ checked Sep 17, 2026	1,001-5,000	933 contacts →
	Indirect evidence “Founded in 2001, Envision Pharma Group is a leading global technology-enabled strategic solutions partner for the life sciences industry, working with over 200 pharma and biotech…” Source: RevenueBase Database · checked Sep 17, 2026
6	Sygnature Discovery	Indirect evidence	Nottingham, United KingdomHQ checked Sep 17, 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 17, 2026
7	Bespak	Partial evidence	Holmes Chapel, United KingdomHQ checked Sep 17, 2026	1,001-5,000	536 contacts →
	Partial evidence “Bespak is a global contract development and manufacturing organisation (CDMO) focused on inhaled and nasal drug delivery devices and drug-device combination products.” Source: RevenueBase Database · checked Sep 17, 2026
8	O2h Discovery	Indirect evidence	Cambridge, United KingdomHQ checked Sep 17, 2026	501-1,000	521 contacts →
	Indirect 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 17, 2026
9	CALYX	Indirect evidence	Nottingham, United KingdomHQ checked Sep 17, 2026	1,001-5,000	452 contacts →
	Indirect evidence “Calyx and Invicro are now Perceptive!” Source: RevenueBase Database · checked Sep 17, 2026
10	Roslinct	Partial evidence	Edinburgh, United KingdomHQ checked Sep 17, 2026	201-500	437 contacts →
	Partial evidence “RoslinCT is a leading global contract development and manufacturing services organization (CDMO) focused on Advanced Cell Therapies.” Source: RevenueBase Database · checked Sep 17, 2026
11	Simbec-Orion	Indirect evidence	Merthyr Tydfil, United KingdomHQ checked Sep 17, 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 17, 2026
12	Pharmanovia	Partial evidence	Basildon, United KingdomHQ checked Sep 17, 2026	201-500	300 contacts →
	Partial evidence “Pharmanovia is an innovative specialty pharmaceutical company with a clear purpose: helping patients lead fuller lives today and tomorrow.” Source: RevenueBase Database · checked Sep 17, 2026
13	B&s Group	Partial evidence	Perivale, United KingdomHQ checked Sep 17, 2026	501-1,000	250 contacts →
	Partial evidence “Operating since B&S Group with its global presence has become one of the leading Pharmaceutical suppliers in the UK, experts in nationwide distribution and at the forefront of…” Source: RevenueBase Database · checked Sep 17, 2026
14	Vectura Group	Indirect evidence	Chippenham, United KingdomHQ checked Sep 17, 2026	201-500	238 contacts →
	Indirect evidence “Vectura is a provider of innovative inhaled drug delivery services that enable partners to bring their medicines to patients.” Source: RevenueBase Database · checked Sep 17, 2026
15	Hammersmith Medicines Research LTD	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	201-500	230 contacts →
	Indirect evidence “HMR is a Contract Research Organisation (CRO).” Source: RevenueBase Database · checked Sep 17, 2026
16	Rosemont Pharmaceuticals	Indirect evidence	Leeds, United KingdomHQ checked Sep 17, 2026	51-200	227 contacts →
	Indirect evidence “At Rosemont our mission is to be a rapid developer, reliable manufacturer and global supplier of novel-delivery, patient-focused medicines.” Source: RevenueBase Database · checked Sep 17, 2026
17	GW Pharmaceuticals PLC	Partial evidence	Cambridge, United KingdomHQ checked Sep 17, 2026	1,001-5,000	218 contacts →
	Partial evidence “GW Pharmaceuticals is now part of Jazz Pharmaceuticals.” Source: RevenueBase Database · checked Sep 17, 2026
18	HVIVO	Partial evidence	London, United KingdomHQ checked Sep 17, 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 17, 2026
19	Concept Life Sciences	Partial evidence	High Peak, United KingdomHQ checked Sep 17, 2026	201-500	209 contacts →
	Partial 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 17, 2026
20	Wasdell Group	Partial evidence	Swindon, United KingdomHQ checked Sep 17, 2026	501-1,000	192 contacts →
	Partial evidence “The Wasdell Group provides the pharmaceutical and nutraceutical industries with solutions to a range of outsourcing requirements.” Source: RevenueBase Database · checked Sep 17, 2026
21	Aspire Pharma LTD	Partial evidence	Petersfield, United KingdomHQ checked Sep 17, 2026	51-200	176 contacts →
	Partial evidence “Aspire Pharma is an innovative, privately owned British pharmaceutical company established in 2009.” Source: RevenueBase Database · checked Sep 17, 2026
22	Aesica Pharmaceuticals LTD	Strong evidence	Hemel Hempstead, United KingdomHQ checked Sep 17, 2026	1,001-5,000	157 contacts →
	Strong evidence “Aesica is a leading pharmaceutical contract development and manufacturing organisation (CDMO) for both APIs and finished dose forms.” Source: RevenueBase Database · checked Sep 17, 2026
23	CHASE	Partial evidence	Edinburgh, United KingdomHQ checked Sep 17, 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 17, 2026
24	Bioscript Group	Partial evidence	Macclesfield, United KingdomHQ checked Sep 17, 2026	51-200	149 contacts →
	Partial evidence “Established in 2005, Bioscript Group is formed from multiple, specialist businesses to support our global pharmaceutical clients; we draw on their multidisciplinary expertise to…” Source: RevenueBase Database · checked Sep 17, 2026
25	Symbiosis Pharmaceutical Services	Strong evidence	Stirling, United KingdomHQ checked Sep 17, 2026	51-200	140 contacts →
	Strong evidence “Symbiosis Pharmaceutical Services is a contract development and manufacturing organisation (CDMO) that specialises in the GMP manufacture and sterile fill/finish of vials for…” Source: RevenueBase Database · checked Sep 17, 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 development 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 development services companies.
Partial evidence: Its own public description names part of pharmaceutical development 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 development 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 850 pharmaceutical development services companies based in the United Kingdom

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

As of Sep 17, 2026

44.3%Verified-email coverage

39.1Average contacts per company

1-10Median size (employees)

23.6%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

464

11-50

207

51-200

103

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 850 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 development 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 development 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 development 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 development 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, 14,722 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 17, 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 development services companies by metro

Pharmaceutical development services companies in London201
Pharmaceutical development services companies in Cambridge31

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 development 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 development services companies are there based in the United Kingdom?

RevenueBase identified 850 pharmaceutical development 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 development services companies?

London leads with 201 headquartered companies, followed by Cambridge (31) and Nottingham (19).

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 14,722 verified decision-maker contacts tracked across these 850 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 17, 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.