Company lists · Data refreshed September 2026

Top 25 Thermal systems integrators based in Belgium

RevenueBase identified 44 thermal systems integrators headquartered in Belgium as of September 2026 and tracks 572 professional contacts across them, including 242 with verified work emails. Brasschaat is the largest hub.

This list covers thermal systems integrators 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
44Companies
572Contacts tracked
242Verified emails
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The 25 largest thermal systems integrators based in Belgium

Ranked by team size
Top 25 of 44 thermal systems integrators 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 thermal systems integrators: 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
1Partial evidenceBrussels, BelgiumHQ checked Sep 29, 2026501-1,000150 contacts →

Partial evidence

“SPG Dry Cooling is an engineering company headquartered in Belgium and specializing in air-cooled heat rejection systems for power generation, industrial applications, and data…”

Source: RevenueBase Database · checked Sep 29, 2026
2Indirect evidenceOverijse, BelgiumHQ checked Sep 29, 202651-20024 contacts →

Indirect evidence

“Group VHC zorgt al meer dan 25 jaar voor slimme oplossingen in verwarming, koeling, ventilatie en zonne energie.”

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceWaarloos, BelgiumHQ checked Sep 29, 202611-5024 contacts →

Indirect evidence

“Operating from the Benelux, we are the preferred partner for customers in the oil, gas and chemical industry for whom accurate measuring, uptime and expertise are of key…”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceDison, BelgiumHQ checked Sep 29, 202651-20022 contacts →

Indirect evidence

“BTN presentation : the company is specialized in the manufacture of heat exchangers meant for air-conditioning, refrigeration and ventilation equipment.”

Source: RevenueBase Database · checked Sep 29, 2026
5Indirect evidenceEvergem, BelgiumHQ checked Sep 29, 202611-5021 contacts →

Indirect evidence

“At Fixsus, we make technology work together.”

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceBornem, BelgiumHQ checked Sep 29, 202611-5018 contacts →

Indirect evidence

“Brelco is een totaalintegrator van elektrotechnieken.”

Source: RevenueBase Database · checked Sep 29, 2026
7Indirect evidenceAntwerp, BelgiumHQ checked Sep 29, 202611-5015 contacts →

Indirect evidence

“Your Safety & Security partner!”

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

Partial evidence

“Thermia est spécialisée dans la régulation HVAC, la fabrication de tableaux de régulation et l’intégration des systèmes techniques du bâtiment.”

Source: RevenueBase Database · checked Sep 29, 2026
9Indirect evidenceGenk, BelgiumHQ checked Sep 29, 202611-5014 contacts →

Indirect evidence

“At POSETRON, we help you make your business sustainable.”

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

Indirect evidence

“DTplan is een merkonafhankelijke programmeur binnen gebouwenmanagement, energiemanagement en automatische regelingen met als doel een totaalpakket betreffende technieken aan te…”

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceWingles, BelgiumHQ checked Sep 29, 20261,001-5,00011 contacts →

Indirect evidence

“Heat exchangers are our business.”

Source: RevenueBase Database · checked Sep 29, 2026
12Partial evidenceHouthalen, BelgiumHQ checked Sep 29, 202611-509 contacts →

Partial evidence

“Met een sterk 14-koppig team van integratoren staat Smart Building Controls jou met raad en daad bij voor de sturing, automatisatie en programmering van ELEK tot HVAC en zelfs…”

Source: RevenueBase Database · checked Sep 29, 2026
13Strong evidencePaal-beringen, BelgiumHQ checked Sep 29, 202611-508 contacts →

Strong evidence

“Easing is a system integrator specialised in the integration of all technical installations in buildings.”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceLauwe, BelgiumHQ checked Sep 29, 202611-508 contacts →

Indirect evidence

“Dubois Control is een professionele high-tech installateur voor residentiële en commerciële toepassingen in de HVAC, Elektrotechniek en high-end domotica.”

Source: RevenueBase Database · checked Sep 29, 2026
15Indirect evidenceHamont-achel, BelgiumHQ checked Sep 29, 202611-508 contacts →

Indirect evidence

“VDL Klima Belgium is a computer software company based out of 13 Industriestraat, Hamont-Achel, Belgium.”

Source: RevenueBase Database · checked Sep 29, 2026
16Strong evidenceGhent, BelgiumHQ checked Sep 29, 20261-107 contacts →

Strong evidence

“System integrator of drives, power controllers for special loads, PLC systems with HMI interfaces and PID control loops.”

Source: RevenueBase Database · checked Sep 29, 2026
17Partial evidenceBeveren-leie, BelgiumHQ checked Sep 29, 20261-107 contacts →

Partial evidence

“We L-inc® thermal process installations to the world’s climate and energy challenge of today and tomorrow by leveraging waste and energy process, incorporating craftsmanship.”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceKontich, BelgiumHQ checked Sep 29, 202611-506 contacts →

Indirect evidence

“Installation cabling and controls for HVAC installations, refrigeration, proces heating, proces cooling.”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceHouffalize, BelgiumHQ checked Sep 29, 20261-105 contacts →

Indirect evidence

“La société O.Controls sprl est active dans le domaine de la régulation HVAC.”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceBrasschaat, BelgiumHQ checked Sep 29, 20261-104 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
21Indirect evidenceZwevegem, BelgiumHQ checked Sep 29, 202611-504 contacts →

Indirect evidence

“Cliver… of Clever: gewoon slim en Westvlaams.”

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

Indirect evidence

“Société spécialisée dans l'intégration de l'HVAC en partenariat avec Schneider Electric”

Source: RevenueBase Database · checked Sep 29, 2026
23Partial evidenceBonheiden, BelgiumHQ checked Sep 29, 20261-103 contacts →

Partial evidence

“Blue Heat was born in 2011 as an engineering team specialised in industrial thermal applications.”

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidenceTessenderlo, BelgiumHQ checked Sep 29, 20261-103 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidenceHasselt, BelgiumHQ checked Sep 29, 202651-2003 contacts →

Indirect evidence

“Van Cleven NV in Hasselt, Limburg, staat al meer dan 50 jaar aan de top van de Belgische sector voor industriële koeling en industriële luchtfilters dankzij ontwerp en realisatie…”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 44 thermal systems integrators based in Belgium

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Thermal systems integrators based in Belgium at a glance

As of Sep 29, 2026
42.3%Verified-email coverage
13.0Average contacts per company
11-50Median size (employees)
4.5%Largest-city concentration · Brasschaat
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
18
11-50
21
51-200
3
501-1,000
1
1,001-5,000
1

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 44 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 thermal systems integrators, 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 “thermal systems integrators”. 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 thermal systems integrators), 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 thermal systems integrators, 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, 242 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 thermal systems integrators, 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 thermal systems integrators are there based in Belgium?

RevenueBase identified 44 thermal systems integrators 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?

SPG DRY Cooling, headquartered in Belgium, tops this list with the largest team on record.

Which city has the most thermal systems integrators?

Brasschaat leads with 2 headquartered companies, followed by Kortrijk (2) and Oudenaarde (2).

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 242 verified decision-maker contacts tracked across these 44 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.