Company lists · Data verified August 2026

Top 9 Business process outsourcing firms based in Belgium

Name: Business process outsourcing firms based in Belgium
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

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

There are 28 business process outsourcing firms headquartered in Belgium (RevenueBase, August 2026). RevenueBase tracks 209 professional contacts across them, including 99 with verified work emails and 2 with mobile numbers. Turnhout is the largest hub.

This list covers business process outsourcing 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.

28Companies

209Contacts tracked

99Verified emails

2Mobile numbers

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The 9 largest business process outsourcing firms based in Belgium

Ranked by team size

Top 9 of 28 business process outsourcing 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	Crefius	Saint-Josse-Ten-Noode Brussels	201-500	114	77
2	Simplify HR	Hasselt	1-10	11	8
3	The House Of Support	Mechelen	51-200	11	4
4	Soludoc Scrl	Sint-Agatha-Berchem Brussels	11-50	5	3
5	Core-S-Ad	Oud-Turnhout	11-50	5	1
6	Kamari Communications	Brasschaat	51-200	4	1
7	Flying Office	Dadizele	1-10	2	2
8	Emisha	n/a	1-10	1	1
9	HR Transform And Optimize For Performance HR T.O.P	Temse	1-10	1	1

Showing 9 of 28 business process outsourcing firms based in Belgium

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Business process outsourcing firms based in Belgium at a glance

As of Aug 28, 2026

1-10Median size (employees)

TurnhoutLargest hub · 1 HQs

2Contacts with mobile numbers

1Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Business process outsourcing firms by metro

Metro	Companies
Business process outsourcing firms in Turnhout	1
Business process outsourcing firms in Oud-Turnhout	1
Business process outsourcing firms in Waremme	1
Business process outsourcing firms in Stokrooie	1
Business process outsourcing firms in Mechelen	1
Business process outsourcing firms in Anderlecht Brussels	1
Business process outsourcing firms in Ternat	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 “business process outsourcing 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; 1 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 business process outsourcing firms are there based in Belgium?

There are 28 business process outsourcing firms headquartered in Belgium as of August 2026 (RevenueBase).

What is the largest company on this list?

Crefius, headquartered in Saint-Josse-Ten-Noode Brussels, tops this list with the largest team on record.

Which city has the most business process outsourcing firms?

Turnhout leads with 1 headquartered companies, followed by Oud-Turnhout (1) and Waremme (1).

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 99 verified decision-maker contacts tracked across these 28 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.