Company lists · Data verified August 2026

Top 25 Api security companies based in Belgium

Name: Api security companies based in Belgium
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 64 companies tracked

There are 64 api security companies headquartered in Belgium (RevenueBase, August 2026). RevenueBase tracks 356 professional contacts across them, including 150 with verified work emails and 11 with mobile numbers. Brussels is the largest hub.

This list covers api security companies 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.

64Companies

356Contacts tracked

150Verified emails

11Mobile numbers

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The 25 largest api security companies based in Belgium

Ranked by team size

Top 25 of 64 api security companies 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	Xalient Benelux	Asse	201-500	74	53
2	Secwise	Leuven	11-50	29	19
3	Thales Cyber Solutions Belgium	n/a	11-50	20	1
4	The Security Factory	Niel	11-50	19	12
5	Actwise	Kontich	11-50	18	10
6	Redsystem	Froyennes	11-50	18	7
7	MCG	Ottignies-Louvain-La-Neuve	1-10	16	8
8	Splynter	Kontich	1-10	10	8
9	Curios	n/a	1-10	10	4
10	Sectricity Outsmart Hackers	Belgium Netherlands	1-10	5	3
11	Resilix	n/a	1-10	5	3
12	Guardis	Hannut	1-10	5	2
13	Apex Networks	Wingene	1-10	4	3
14	Icteryus	Gentbrugge	1-10	4	2
15	Cybervalue	Leuven	1-10	3	2
16	Threatproof	n/a	11-50	2	2
17	Odsc Sprl	Namur	1-10	2	1
18	Layer 9 Networks	Sint-Amandsberg	1-10	2	1
19	Blue Canary	Bruges	1-10	1	1
20	Flowz-It Cyberprotection For Smes	n/a	1-10	1	1
21	Shift Left Security	Leuven	1-10	1	1
22	Cyberinit	Waremme	1-10	1	1
23	Securenza	Genk	1-10	1	1
24	Cybertronica	Kontich	1-10	1	1
25	Achillex BV	Brussels	1-10	1	1

Showing 25 of 64 api security companies based in Belgium

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Api security companies based in Belgium at a glance

As of Aug 28, 2026

1-10Median size (employees)

BrusselsLargest hub · 4 HQs

11Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

Api security companies by metro

Metro	Companies
Api security companies in Brussels	4
Api security companies in Kontich	3
Api security companies in Leuven	3
Api security companies in Kortrijk	2
Api security companies in Brussel	2
Api security companies in Genk	2
Api security companies in Erpe-Mere	2

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 “api security companies”, 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 api security companies are there based in Belgium?

There are 64 api security companies headquartered in Belgium as of August 2026 (RevenueBase).

What is the largest company on this list?

Xalient Benelux, headquartered in Asse, tops this list with the largest team on record.

Which city has the most api security companies?

Brussels leads with 4 headquartered companies, followed by Kontich (3) and Leuven (3).

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 150 verified decision-maker contacts tracked across these 64 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.