Company lists · Data verified August 2026

Top 25 Clinical trial software companies based in the United Kingdom

Name: Clinical trial software companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 155 companies tracked

There are 155 clinical trial software companies headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 9,072 professional contacts across them, including 4,468 with verified work emails and 1,918 with mobile numbers. London is the largest hub.

This list covers clinical trial software 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. Data current as of August 28, 2026.

155Companies

9,072Contacts tracked

4,468Verified emails

1,918Mobile numbers

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The 25 largest clinical trial software companies based in the United Kingdom

Ranked by team size

Top 25 of 155 clinical trial software companies based in the United Kingdom, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Premier Research	Wokingham	1,001-5,000	2,637	1,223
2	Perceptive INC	London	1,001-5,000	1,197	736
3	Endpoint Clinical	London	501-1,000	623	463
4	Pharm-Olam, LLC	Bracknell	501-1,000	560	118
5	Citeline	London	501-1,000	475	190
6	CALYX	Nottingham	1,001-5,000	457	117
7	Phastar	Glasgow	501-1,000	383	298
8	Simbec-Orion	Tydfil	201-500	308	168
9	Theorem NOW Fortrea	Slough	10001+	286	1
10	IDBS	Woking	201-500	282	175
11	Richmond Pharmacology	London	51-200	203	116
12	Lorenz Life Sciences Group	Guildford	51-200	175	121
13	SCOUT	London	201-500	168	107
14	Thread	Cheltenham	51-200	95	54
15	NWEH	Manchester	51-200	57	40
16	Protas	London	51-200	57	30
17	Vodori	London	51-200	53	33
18	Woodley Trial Solutions	Bolton	51-200	46	36
19	Image Analysis Group	London	51-200	44	24
20	ARC Regulatory	Belfast	11-50	43	9
21	Ellipses Pharma	London	51-200	40	32
22	Ignitedata	Reading	11-50	38	4
23	Atlantic Research Group	Leatherhead	51-200	33	21
24	Research Grid R.Grid	Norwich	51-200	25	11
25	Aparito	Wrexham	11-50	24	13

Showing 25 of 155 clinical trial software companies based in the United Kingdom

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Clinical trial software companies based in the United Kingdom at a glance

As of Aug 28, 2026

11-50Median size (employees)

LondonLargest hub · 45 HQs

1,918Contacts with mobile numbers

23Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Clinical trial software companies by metro

Metro	Companies
Clinical trial software companies in London	45
Clinical trial software companies in Glasgow	7
Clinical trial software companies in Cambridge	6
Clinical trial software companies in Manchester	4
Clinical trial software companies in Oxford	3
Clinical trial software companies in Slough	3
Clinical trial software companies in Nottingham	3
Clinical trial software companies in Leeds	3

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “clinical trial software companies”, with match quality audited by blind human judging, and headquartered in the United Kingdom.
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: Contact records re-verify on a rolling cadence; 23 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many clinical trial software companies are there based in the United Kingdom?

There are 155 clinical trial software companies headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

Premier Research, headquartered in Wokingham, tops this list with the largest team on record.

Which city has the most clinical trial software companies?

London leads with 45 headquartered companies, followed by Glasgow (7) and Cambridge (6).

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 4,468 verified decision-maker contacts tracked across these 155 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.