Company lists · Data verified August 2026

Top 25 Custom software development agencies based in Belgium

Name: Custom software development agencies based in Belgium
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 533 companies tracked

There are 533 custom software development agencies headquartered in Belgium (RevenueBase, August 2026). RevenueBase tracks 3,727 professional contacts across them, including 1,499 with verified work emails and 89 with mobile numbers. Brussels is the largest hub.

This list covers custom software development agencies 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.

533Companies

3,727Contacts tracked

1,499Verified emails

89Mobile numbers

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The 25 largest custom software development agencies based in Belgium

Ranked by team size

Top 25 of 533 custom software development agencies 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	SFEIR	Bruxelles	501-1,000	916	359
2	Allphi	Westerlo	51-200	96	56
3	Peopleware	Lier	51-200	75	34
4	Euricom	Mechelen	51-200	70	54
5	PHPRO	Hasselt	51-200	59	42
6	advance.io	Antwerp	51-200	54	4
7	Kunlabora	Leuven	51-200	51	40
8	Nish Tech BV	n/a	51-200	46	1
9	DJM Digital	Vise	11-50	45	33
10	Linkare TI	n/a	51-200	43	34
11	Synchrone	Barchon	11-50	41	21
12	Endare	Ghent	11-50	29	18
13	Licquid	Borgerhout	11-50	28	15
14	ATA IT BV	Onze-Lieve-Vrouw-Waver	11-50	26	8
15	Digitalize Advisory Certified B Corp	n/a	11-50	24	4
16	Collide	Herentals	11-50	23	20
17	Delta Source	Aartselaar	11-50	23	13
18	Brainsolutions	n/a	11-50	21	13
19	Lodestar	Gent	11-50	20	1
20	Pulsar Consulting SA	Wavre	11-50	19	12
21	We ARE	Gent	11-50	19	10
22	SELAS	Lille	11-50	17	6
23	Novation	n/a	11-50	15	11
24	Tactics	Kapellen	11-50	15	10
25	Narato	Kontich	11-50	15	9

Showing 25 of 533 custom software development agencies based in Belgium

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,499 reachable decision-makers.

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Custom software development agencies based in Belgium at a glance

As of Aug 28, 2026

1-10Median size (employees)

BrusselsLargest hub · 29 HQs

89Contacts with mobile numbers

5Emails re-verified in last 30 days

Companies by employee count

1-10

413

11-50

51-200

501-1,000

1,001-5,000

Custom software development agencies by metro

Metro	Companies
Custom software development agencies in Brussels	29
Custom software development agencies in Bruxelles	18
Custom software development agencies in Ghent	10
Custom software development agencies in Gent	10
Custom software development agencies in Mechelen	9
Custom software development agencies in Liege	9
Custom software development agencies in Antwerpen	8

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 “custom software development agencies”, 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; 5 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 custom software development agencies are there based in Belgium?

There are 533 custom software development agencies headquartered in Belgium as of August 2026 (RevenueBase).

What is the largest company on this list?

SFEIR, headquartered in Bruxelles, tops this list with the largest team on record.

Which city has the most custom software development agencies?

Brussels leads with 29 headquartered companies, followed by Bruxelles (18) and Ghent (10).

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 1,499 verified decision-maker contacts tracked across these 533 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.