Company lists · Data refreshed September 2026

Top 25 Network security installation contractors based in Belgium

RevenueBase identified 132 network security installation contractors headquartered in Belgium as of September 2026 and tracks 632 professional contacts across them, including 195 with verified work emails. Genk is the largest hub.

This list covers network security installation contractors headquartered in Belgium, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review
132Companies
632Contacts tracked
195Verified emails
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The 25 largest network security installation contractors based in Belgium

Ranked by team size
Top 25 of 132 network security installation contractors based in Belgium, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to network security installation contractors: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceRoeselare, BelgiumHQ checked Sep 29, 202651-20085 contacts →

Indirect evidence

“Alertis NV is een van de belangrijkste spelers in branddetectie in Vlaanderen met een heldenteam van 125 gepassioneerde professionals.”

Source: RevenueBase Database · checked Sep 29, 2026
2Strong evidenceMechelen, BelgiumHQ checked Sep 29, 202611-5024 contacts →

Strong evidence

“Netleaf is your professional Network & Security integrator: A Single Point of Contact for Wired and Wireless Networking and its security.”

Source: RevenueBase Database · checked Sep 29, 2026
3Partial evidenceHulshout, BelgiumHQ checked Sep 29, 20261-1021 contacts →

Partial evidence

“DC Security staat reeds meer dan 30 jaar garant voor een totaaloplossing inzake de beveiliging van particulieren en bedrijven.”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceZaventem, BelgiumHQ checked Sep 29, 202611-5020 contacts →

Indirect evidence

“We are committed to developing solutions and services that secure and connect the increasingly complex digital landscape.”

Source: RevenueBase Database · checked Sep 29, 2026
5Partial evidenceBelgiumHQ checked Sep 29, 202611-5020 contacts →

Partial evidence

“At Thales Cyber Solutions Belgium, we strive for security & privacy.”

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceKontich, BelgiumHQ checked Sep 29, 202651-20019 contacts →

Indirect evidence

“Evip bestaat sinds 1972 en is sindsdien uitgegroeid tot een toonaangevend bedrijf in de elektriciteitsmarkt.”

Source: RevenueBase Database · checked Sep 29, 2026
7Partial evidenceSint-niklaas, BelgiumHQ checked Sep 29, 202611-5015 contacts →

Partial evidence

“MVH Security staat voor KWALITEIT – BETROUWBAARHEID – EERLIJKHEID - SOEPELHEID – SERVICE - SNELHEID Al deze troeven wensen wij dagelijks in te zetten voor zowel de particuliere…”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceZottegem, BelgiumHQ checked Sep 29, 202611-5015 contacts →

Partial evidence

“Telephony - Security - Electricity - Data Cabling De Sutter Electronics biedt een totaal oplossing aan voor telefonie, beveiliging, elektriciteit en data bekabeling.”

Source: RevenueBase Database · checked Sep 29, 2026
9Indirect evidenceNivelles, BelgiumHQ checked Sep 29, 202611-5015 contacts →

Indirect evidence

“Fondée en 1987, Alsec conçoit et installe des systèmes de sécurité adaptés aux besoins de ses clients, tant chez les particuliers que dans les entreprises.”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceForest, BelgiumHQ checked Sep 29, 202611-5013 contacts →

Indirect evidence

“Votre sécurité, notre métier!”

Source: RevenueBase Database · checked Sep 29, 2026
11Strong evidenceHoudeng-goegnies, BelgiumHQ checked Sep 29, 20261-108 contacts →

Strong evidence

“Cobatec alarm security, installation système d'alarme, système de camera, système incendie, câblage informatique.”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceHuy, BelgiumHQ checked Sep 29, 202611-507 contacts →

Indirect evidence

“Nous aidons les entreprises dans la conception et la réalisation de leurs infrastructures réseaux passives et actives (Layer 1-2-3).”

Source: RevenueBase Database · checked Sep 29, 2026
13Partial evidenceKuurne, BelgiumHQ checked Sep 29, 202611-507 contacts →

Partial evidence

“Korelec bvba is als erkende en INCERT-gecertificeerde beveiligingsonderneming B-1531 gespecialiseerd in ontwerp, installatie en onderhoud van inbraakbeveiliging, camerabewaking…”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceWestmeerbeek, BelgiumHQ checked Sep 29, 202611-507 contacts →

Indirect evidence

“DuraConnect is een innoverend bedrijf dat zich richt op het ontwerpen, plaatsen en optimaliseren van datanetwerken.”

Source: RevenueBase Database · checked Sep 29, 2026
15Partial evidenceBrugge, BelgiumHQ checked Sep 29, 20261-107 contacts →

Partial evidence

“Goozz is gespecialiseerd in de installatie en het onderhoud van inbraak- en branddetectiesystemen, camerabewaking en toegangscontrole.”

Source: RevenueBase Database · checked Sep 29, 2026
16Strong evidencePaal-beringen, BelgiumHQ checked Sep 29, 20261-106 contacts →

Strong evidence

“Highly skilled IT consultants with focus on network & security.”

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidenceDendermonde, BelgiumHQ checked Sep 29, 20261-106 contacts →

Indirect evidence

“Venerit- beveiligt en beschermt het netwerk en de data van jouw kmo voor cyberaanvallen- stelt je (internationale) netwerk op punt en vereenvoudigt het beheer zodat je dat…”

Source: RevenueBase Database · checked Sep 29, 2026
18Partial evidenceBeerse, BelgiumHQ checked Sep 29, 202611-505 contacts →

Partial evidence

“Sterkens Security biedt u meer dan 40 jaar ervaring in beveiliging.”

Source: RevenueBase Database · checked Sep 29, 2026
19Strong evidenceSchoten, BelgiumHQ checked Sep 29, 202611-505 contacts →

Strong evidence

“Failsafe Security is voornamelijk actief in de industrie voor de installatie en onderhoud van elektronische beveiligingsoplossingen zoals o.a.”

Source: RevenueBase Database · checked Sep 29, 2026
20Partial evidenceOupeye, BelgiumHQ checked Sep 29, 20261-105 contacts →

Partial evidence

“Avec plus de 10 ans d'expérience, MMi Solution est spécialisée dans l'installation, la configuration, la gestion et la maintenance de réseaux et parcs informatiques pour de…”

Source: RevenueBase Database · checked Sep 29, 2026
21Indirect evidenceBraine L'alleud, BelgiumHQ checked Sep 29, 20261-105 contacts →

Indirect evidence

“Depuis plus de 25 ans, Dejitronic se spécialise dans le domaine de la sécurité électronique pour particulier et professionnel-Système d'alarme -Caméra de surveillance -Détection…”

Source: RevenueBase Database · checked Sep 29, 2026
22Indirect evidenceWingene, BelgiumHQ checked Sep 29, 20261-104 contacts →

Indirect evidence

“Een goed werkend netwerk is voor elk bedrijf van cruciaal belang.”

Source: RevenueBase Database · checked Sep 29, 2026
23Partial evidenceMerksem, BelgiumHQ checked Sep 29, 20261-104 contacts →

Partial evidence

“D'Tral is the oldest security company in Antwerp, Belgium.”

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidenceAarschot, BelgiumHQ checked Sep 29, 202611-504 contacts →

Indirect evidence

“ENS kan u als ervaren installateur een uitgebreid gamma van technieken aanbieden.”

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidenceSint-katelijne-waver, BelgiumHQ checked Sep 29, 20261-104 contacts →

Indirect evidence

“Wij plaatsen onderhouden en herstellen : Alarmsystemen - camerabewaking - branddetectiesystemen - toegangscontrole en kluizen 24u/24u bereikbaar voor dringende zaken Tel…”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 132 network security installation contractors based in Belgium

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Network security installation contractors based in Belgium at a glance

As of Sep 29, 2026
30.9%Verified-email coverage
4.8Average contacts per company
1-10Median size (employees)
2.3%Largest-city concentration · Genk
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
95
11-50
33
51-200
4

Email recency for this list is measured worldwide rather than for Belgium, so it is reported there. Company counts and contact totals on this page are exact for Belgium, over 132 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among network security installation contractors, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Belgium whose own description of what they do matches “network security installation contractors”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names network security installation contractors), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among network security installation contractors, and records with no verified work email. Companies headquartered outside Belgium are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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
Every listed company carries at least one verified work email, 195 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 29, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names network security installation contractors, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many network security installation contractors are there based in Belgium?

RevenueBase identified 132 network security installation contractors headquartered in Belgium as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Alertis NV, headquartered in Roeselare, tops this list with the largest team on record.

Which city has the most network security installation contractors?

Genk leads with 3 headquartered companies, followed by Schilde (3) and Waterloo (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 195 verified decision-maker contacts tracked across these 132 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 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 with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.