Company lists · Data refreshed September 2026

Top 25 Psychopharmacology research firms based in the United Kingdom

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

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 118 companies tracked

RevenueBase identified 118 psychopharmacology research firms headquartered in the United Kingdom as of September 2026 and tracks 10,508 professional contacts across them, including 5,687 with verified work emails. London is the largest hub.

This list covers psychopharmacology research firms 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 20, 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 20, 2026 86% judged on-target in blind review

118Companies

10,508Contacts tracked

5,687Verified emails

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The 25 largest psychopharmacology research firms based in the United Kingdom

Ranked by team size

Top 25 of 118 psychopharmacology research firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to psychopharmacology research 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	Almac Group	Indirect evidence	Craigavon, United KingdomHQ checked Sep 20, 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 20, 2026
2	Perceptive INC	Partial evidence	London, United KingdomHQ checked Sep 20, 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 20, 2026
3	CALYX	Indirect evidence	Nottingham, United KingdomHQ checked Sep 20, 2026	1,001-5,000	452 contacts →
	Indirect evidence “Calyx and Invicro are now Perceptive!” Source: RevenueBase Database · checked Sep 20, 2026
4	MAC Clinical Research	Partial evidence	Blackpool, United KingdomHQ checked Sep 20, 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 20, 2026
5	Simbec-Orion	Indirect evidence	Merthyr Tydfil, United KingdomHQ checked Sep 20, 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 20, 2026
6	Hammersmith Medicines Research LTD	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	201-500	230 contacts →
	Partial evidence “HMR is a Contract Research Organisation (CRO).” Source: RevenueBase Database · checked Sep 20, 2026
7	HVIVO	Partial evidence	London, United KingdomHQ checked Sep 20, 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 20, 2026
8	Richmond Pharmacology	Indirect evidence	London, United KingdomHQ checked Sep 20, 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 20, 2026
9	Clintec	Partial evidence	Glasgow, United KingdomHQ checked Sep 20, 2026	501-1,000	136 contacts →
	Partial 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 20, 2026
10	Transpharmation LTD	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	119 contacts →
	Partial evidence “Transpharmation is a contract research organisation led by scientists.” Source: RevenueBase Database · checked Sep 20, 2026
11	Huntingdon Life Sciences	Indirect evidence	Huntingdon, United KingdomHQ checked Sep 20, 2026	1,001-5,000	106 contacts →
	Indirect evidence “Huntingdon Life Sciences was founded in 1952.” Source: RevenueBase Database · checked Sep 20, 2026
12	Arcinova	Partial evidence	Alnwick, United KingdomHQ checked Sep 20, 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 20, 2026
13	Medicines Evaluation Unit Ltd, An Iqvia Business	Partial evidence	Manchester, United KingdomHQ checked Sep 20, 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 20, 2026
14	IXICO	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	92 contacts →
	Partial evidence “IXICO is no ordinary Imaging Contract Research Organisation (iCRO).” Source: RevenueBase Database · checked Sep 20, 2026
15	Sequani	Indirect evidence	Ledbury, United KingdomHQ checked Sep 20, 2026	51-200	87 contacts →
	Indirect evidence “great people, great work, real results Sequani’s heritage spans more than 50 years when a company called Toxicol Laboratories opened for business in London.” Source: RevenueBase Database · checked Sep 20, 2026
16	Seda Pharmaceutical Development & Clinical Manufacturing Services	Indirect evidence	Cheadle, United KingdomHQ checked Sep 20, 2026	11-50	60 contacts →
	Indirect 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 20, 2026
17	Clerkenwell Health	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	57 contacts →
	Indirect evidence “Clerkenwell Health is building the UK’s leading specialist neuro and psychiatry site network, created to raise the standard of how CNS clinical trials are run.” Source: RevenueBase Database · checked Sep 20, 2026
18	Protas	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	57 contacts →
	Indirect evidence “Protas is transforming clinical trials for the benefit of patients worldwide.” Source: RevenueBase Database · checked Sep 20, 2026
19	Labcorp Limited	Indirect evidence	Princes Risborough, United KingdomHQ checked Sep 20, 2026	11-50	48 contacts →
	Indirect evidence “We believe in harnessing science for human good.” Source: RevenueBase Database · checked Sep 20, 2026
20	BDD	Indirect evidence	84 Castle Street, United KingdomHQ checked Sep 20, 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 20, 2026
21	Sylphid Analytics	Partial evidence	Reading, United KingdomHQ checked Sep 20, 2026	51-200	37 contacts →
	Partial evidence “Sylphid Analytics is a specialized Clinical Research Organization (CRO) delivering high-quality, end-to-end support to the Pharmaceutical and Biopharmaceutical industries.” Source: RevenueBase Database · checked Sep 20, 2026
22	Weatherden	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	29 contacts →
	Indirect 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 20, 2026
23	Excellerate Bioscience LTD	Partial evidence	Nottingham, United KingdomHQ checked Sep 20, 2026	11-50	27 contacts →
	Partial evidence “Excellerate Bioscience is a dynamic and innovative contract research organization built on a worldwide reputation for excellence in the field of molecular and cellular…” Source: RevenueBase Database · checked Sep 20, 2026
24	Numerus	Partial evidence	Wokingham, United KingdomHQ checked Sep 20, 2026	11-50	23 contacts →
	Partial evidence “Numerus is a statistical contract research organisation (CRO) with a proven track record in clinical trials, a specialised skillset for health technology assessment, and…” Source: RevenueBase Database · checked Sep 20, 2026
25	TRN	Indirect evidence	Sandwich, United KingdomHQ checked Sep 20, 2026	11-50	22 contacts →
	Indirect evidence “Drug discovery and development requires in-depth multi-disciplinary expertise which organisations may not always have in-house.” Source: RevenueBase Database · checked Sep 20, 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: psychopharmacology research 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 psychopharmacology research firms.
Partial evidence: Its own public description names part of psychopharmacology research firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name psychopharmacology research 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 25 of 118 psychopharmacology research firms based in the United Kingdom

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Psychopharmacology research firms based in the United Kingdom at a glance

As of Sep 20, 2026

54.1%Verified-email coverage

89.1Average contacts per company

11-50Median size (employees)

32.2%Largest-city concentration · London

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

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 118 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 psychopharmacology research 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 the United Kingdom whose own description of what they do matches “psychopharmacology research 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 psychopharmacology research 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 psychopharmacology research firms, 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, 5,687 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 20, 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.

Psychopharmacology research firms by metro

Psychopharmacology research firms in London38

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 psychopharmacology research 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 psychopharmacology research firms are there based in the United Kingdom?

RevenueBase identified 118 psychopharmacology research firms 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 psychopharmacology research firms?

London leads with 38 headquartered companies, followed by Nottingham (5) and Cambridge (4).

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 5,687 verified decision-maker contacts tracked across these 118 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 20, 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.