Company lists · Data refreshed September 2026

Top 25 Building systems maintenance contractors based in Belgium

Name: Building systems maintenance contractors based in Belgium
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 161 companies tracked

RevenueBase identified 161 building systems maintenance contractors headquartered in Belgium as of September 2026 and tracks 6,327 professional contacts across them, including 2,013 with verified work emails. Bruxelles is the largest hub.

This list covers building systems maintenance 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 16, 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 16, 2026 86% judged on-target in blind review

161Companies

6,327Contacts tracked

2,013Verified emails

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The 25 largest building systems maintenance contractors based in Belgium

Ranked by team size

Top 25 of 161 building systems maintenance contractors based in Belgium, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to building systems maintenance 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Equans Belux	Indirect evidence	Brussels, BelgiumHQ checked Sep 16, 2026	5,001-10,000	5,297 contacts →
	Indirect evidence “What if you could use your talent to contribute to the great challenges of tomorrow?” Source: RevenueBase Database · checked Sep 16, 2026
2	Vinci Facilities Belgium	Partial evidence	Brussels, BelgiumHQ checked Sep 16, 2026	201-500	151 contacts →
	Partial evidence “VINCI Facilities, a brand of VINCI Energies, is a leading provider of Facility Management and multi-technical maintenance.” Source: RevenueBase Database · checked Sep 16, 2026
3	Senec S.A	Indirect evidence	Sint-pieters-leeuw, BelgiumHQ checked Sep 16, 2026	51-200	63 contacts →
	Indirect evidence “At Senec, we support both private individuals and professionals with their heating, air conditioning, ventilation, and energy projects.” Source: RevenueBase Database · checked Sep 16, 2026
4	The Energy Circle	Partial evidence	Hasselt, BelgiumHQ checked Sep 16, 2026	201-500	40 contacts →
	Partial evidence “Van onderhoud & monitoring, elektrische installaties & groene stroom, tot waterbeheer & HVAC-systemen: The Energy Circle heeft alle expertise in huis om grote gebouwen en…” Source: RevenueBase Database · checked Sep 16, 2026
5	Iris Cleaning Services SA	Indirect evidence	Bruxelles, BelgiumHQ checked Sep 16, 2026	51-200	36 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
6	SIX Izegem	Indirect evidence	Izegem, BelgiumHQ checked Sep 16, 2026	201-500	35 contacts →
	Indirect evidence “SIX staat voor kwaliteit en standvastigheid, zoveel is zeker.” Source: RevenueBase Database · checked Sep 16, 2026
7	Comtis Services	Indirect evidence	Herentals, BelgiumHQ checked Sep 16, 2026	51-200	33 contacts →
	Indirect evidence “Op zoek naar een vaste onderhoudspartner?” Source: RevenueBase Database · checked Sep 16, 2026
8	CTSM	Indirect evidence	Mont-saint-guibert, BelgiumHQ checked Sep 16, 2026	11-50	21 contacts →
	Indirect evidence “CTSM is a construction company based in 45/34 Rue des Sablières, 1435 Mont-Saint-Guibert, Belgium.” Source: RevenueBase Database · checked Sep 16, 2026
9	VAN Cauter Multitechnieken	Indirect evidence	Lede, BelgiumHQ checked Sep 16, 2026	51-200	18 contacts →
	Indirect evidence “Algemene Elektriciteit HVAC Beveiliging Energiebeheer Project en Onderhoud” Source: RevenueBase Database · checked Sep 16, 2026
10	Bluebridge Services	Indirect evidence	Hasselt, BelgiumHQ checked Sep 16, 2026	51-200	17 contacts →
	Indirect evidence “Bluebridge Services is a Technical Facilities Services company based in Belgium.” Source: RevenueBase Database · checked Sep 16, 2026
11	Faciliteam	Indirect evidence	Braine L’alleud, BelgiumHQ checked Sep 16, 2026	11-50	17 contacts →
	Indirect evidence “Beginning 2023, Laurent Pestiau, founder of FaciliTeam in 2010, retook FaciliTeam Belgium from the main shareholder EMALEC and this with the support of two partners.” Source: RevenueBase Database · checked Sep 16, 2026
12	Climawest NV	Indirect evidence	Zwevegem, BelgiumHQ checked Sep 16, 2026	11-50	16 contacts →
	Indirect evidence “Climawest NV is an installation company specialized in HVAC applications for businesses, offices, industry, retail, and private construction.” Source: RevenueBase Database · checked Sep 16, 2026
13	Homeserve Belgium	Indirect evidence	Bruxelles, BelgiumHQ checked Sep 16, 2026	1-10	15 contacts →
	Indirect evidence “Aware that homeowners and tenants around the world face similar needs in the event of a breakdown within their home, HomeServe has been deploying its international expertise for…” Source: RevenueBase Database · checked Sep 16, 2026
14	VAN Roey Services	Indirect evidence	Rijkevorsel, BelgiumHQ checked Sep 16, 2026	11-50	14 contacts →
	Indirect evidence “Gebouwen praten, maar niet iedereen luistert - en dat zorgt ervoor dat vandaag zo’n 75% van de kosten over de hele levenscyclus naar onderhoud gaat.” Source: RevenueBase Database · checked Sep 16, 2026
15	Delta Maintenance	Partial evidence	Fernelmont, BelgiumHQ checked Sep 16, 2026	11-50	13 contacts →
	Partial evidence “Delta Maintenance propose à ses clients des contrats de maintenance de leurs installations HVAC intégrant, à la demande, d’autres services indispensables à la gestion des…” Source: RevenueBase Database · checked Sep 16, 2026
16	HUUST	Indirect evidence	Hasselt, BelgiumHQ checked Sep 16, 2026	1-10	12 contacts →
	Indirect evidence “Huust blinkt uit in het renoveren, herstellen, onderhouden en reinigen van alle denkbare gebouwen.” Source: RevenueBase Database · checked Sep 16, 2026
17	Thermoco Equans	Indirect evidence	Antwerpen, BelgiumHQ checked Sep 16, 2026	51-200	12 contacts →
	Indirect evidence “Thermoco is uw uniek aanspreekpunt voor al uw projecten in HVAC, centrale verwarming, regeltechniek, ventilatie, sanitair, koeling en elektriciteit.” Source: RevenueBase Database · checked Sep 16, 2026
18	Desauw	Partial evidence	Zwevegem, BelgiumHQ checked Sep 16, 2026	11-50	10 contacts →
	Partial evidence “Desauw NV werd opgericht in 1862 en is intussen de 4de generatie van een installatiebedrijf voor alle technieken: Elektriciteit - Beveiliging - HVAC & Sanitair - Systeemintegratie…” Source: RevenueBase Database · checked Sep 16, 2026
19	Smart Solutions	Indirect evidence	Roeselare, BelgiumHQ checked Sep 16, 2026	201-500	10 contacts →
	Indirect evidence “Smart Solutions is de partner voor elektrische installaties op werven, elektrisch en mechanisch onderhoud in de industrie, constructiewerk, installaties HVAC, plaatsen van…” Source: RevenueBase Database · checked Sep 16, 2026
20	EEG Namur	Indirect evidence	Naninne, BelgiumHQ checked Sep 16, 2026	501-1,000	9 contacts →
	Indirect evidence “EEG Namur (Ex Danneels SA) est une entreprise active dans les travaux d'installation de chauffage/sanitaire/HVAC et électricité.” Source: RevenueBase Database · checked Sep 16, 2026
21	ABC Technics Sprl	Indirect evidence	Zellik, BelgiumHQ checked Sep 16, 2026	11-50	9 contacts →
	Indirect evidence “ABC Technics est spécialisée dans les installations techniques comme le chauffage, le sanitaire, la ventilation, la climatisation, les installations électriques et les réseaux…” Source: RevenueBase Database · checked Sep 16, 2026
22	Alfa Cooling Technics	Indirect evidence	Lokeren, BelgiumHQ checked Sep 16, 2026	11-50	8 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
23	Econergy Sprl	Indirect evidence	Soignies, BelgiumHQ checked Sep 16, 2026	11-50	7 contacts →
	Indirect evidence “Nous regroupons, au sein d'une même équipe, les compétences en terme d’études, d’installation et d’entretien de vos projets de chauffage, de ventilation et de climatisation.” Source: RevenueBase Database · checked Sep 16, 2026
24	Innotech BV	Indirect evidence	Wielsbeke, BelgiumHQ checked Sep 16, 2026	11-50	6 contacts →
	Indirect evidence “De firma Innotech levert op basis van jarenlange kennis en ervaring, kwaliteitsvol en op maat gemaakt werk, voor een democratische prijs.” Source: RevenueBase Database · checked Sep 16, 2026
25	E&m Projects BV	Indirect evidence	Oostkamp, BelgiumHQ checked Sep 16, 2026	1-10	6 contacts →
	Indirect evidence “Wij zijn een servicebedrijf voor alles wat te maken heeft met uw productie en industriële installaties- Technische interventies - Preventief en regulier onderhoud - Verbouwen en…” Source: RevenueBase Database · checked Sep 16, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: building systems maintenance contractors. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names building systems maintenance contractors.
Partial evidence: Its own public description names part of building systems maintenance contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name building systems maintenance contractors. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 161 building systems maintenance contractors based in Belgium

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Building systems maintenance contractors based in Belgium at a glance

As of Sep 16, 2026

31.8%Verified-email coverage

39.3Average contacts per company

1-10Median size (employees)

6.2%Largest-city concentration · Bruxelles

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

5,001-10,000

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 161 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 building systems maintenance 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 “building systems maintenance 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 building systems maintenance 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 building systems maintenance 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, 2,013 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 16, 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 building systems maintenance 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 building systems maintenance contractors are there based in Belgium?

RevenueBase identified 161 building systems maintenance 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?

Equans Belux, headquartered in Belgium, tops this list with the largest team on record.

Which city has the most building systems maintenance contractors?

Bruxelles leads with 10 headquartered companies, followed by Antwerpen (4) and Molenbeek-Saint-Jean (4).

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 2,013 verified decision-maker contacts tracked across these 161 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 16, 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.