Company lists · Data verified August 2026

Top 22 Clinical trial recruitment firms based in Belgium

Name: Clinical trial recruitment firms based in Belgium
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 39 companies tracked

There are 39 clinical trial recruitment firms headquartered in Belgium (RevenueBase, August 2026). RevenueBase tracks 341 professional contacts across them, including 143 with verified work emails and 20 with mobile numbers. Brussels is the largest hub.

This list covers clinical trial recruitment firms headquartered in Belgium, 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.

39Companies

341Contacts tracked

143Verified emails

20Mobile numbers

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The 22 largest clinical trial recruitment firms based in Belgium

Ranked by team size

Top 22 of 39 clinical trial recruitment firms based in Belgium, 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	Firstwave Clinical Consultancy	Brussels	51-200	46	5
2	Fern Valley	Kontich	11-50	22	12
3	HEMEX	Leuven	11-50	21	10
4	Xper Research	Gent	11-50	20	13
5	Meclinas	Mechelen	1-10	19	12
6	Curewiki	Brussels	1-10	16	12
7	Solcur	Kontich	11-50	15	13
8	Dice-Cro	n/a	11-50	15	13
9	Siron Clinical	Antwerp	11-50	12	9
10	Deltaclinical	Willebroek	11-50	12	3
11	Sillar Clinical	Sint-Martens-Latem	11-50	9	6
12	Ecsor SA NV	n/a	11-50	8	2
13	AD HOC Clinical	Ypres	11-50	7	5
14	ULALO	Limal	11-50	6	4
15	Aesculape CRO	Belsele	11-50	6	2
16	QBD Clinical	Lier	11-50	5	4
17	Clintrial-Net Ct-N	Leuven	1-10	5	2
18	Frame By Jessa Ziekenhuis	Herk-De-Stad	1-10	4	3
19	Harmony Clinical Research BV	Melle	11-50	3	2
20	Medex15	Antwerp	1-10	3	2
21	Arensia	Mechelen	1-10	3	1
22	Cliniresearch	Merelbeke	1-10	1	1

Showing 22 of 39 clinical trial recruitment firms based in Belgium

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Clinical trial recruitment firms based in Belgium at a glance

As of Aug 28, 2026

11-50Median size (employees)

BrusselsLargest hub · 5 HQs

20Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

Clinical trial recruitment firms by metro

Metro	Companies
Clinical trial recruitment firms in Brussels	5
Clinical trial recruitment firms in Antwerp	2
Clinical trial recruitment firms in Mechelen	2
Clinical trial recruitment firms in Leuven	2
Clinical trial recruitment firms in Hasselt	2
Clinical trial recruitment firms in Kontich	2
Clinical trial recruitment firms in Zwijndrecht	1

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 recruitment firms”, with match quality audited by blind human judging, and headquartered in Belgium.
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; 0 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 recruitment firms are there based in Belgium?

There are 39 clinical trial recruitment firms headquartered in Belgium as of August 2026 (RevenueBase).

What is the largest company on this list?

Firstwave Clinical Consultancy, headquartered in Brussels, tops this list with the largest team on record.

Which city has the most clinical trial recruitment firms?

Brussels leads with 5 headquartered companies, followed by Antwerp (2) and Mechelen (2).

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 143 verified decision-maker contacts tracked across these 39 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.