Company lists · Data refreshed November 2026

Top 25 Indoor environmental consultants based in Belgium

RevenueBase identified 89 company matches for indoor environmental consultants associated with Belgium as of November 2026 and tracks 645 professional contacts across them, including 315 with verified work emails. Ghent is the largest hub.

This list covers company matches for indoor environmental consultants associated with Belgium, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
89Companies
645Contacts tracked
315Verified emails
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The 25 largest indoor environmental consultants based in Belgium

Ranked by team size
Top 25 of 89 company matches for indoor environmental consultants based in Belgium, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchGentbrugge, BelgiumHQ recorded Nov 6, 202651-200104 contacts →

Exact match

“Trevi Environmental Solutions is a Belgian environmental technology company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchLeuven (wijgmaal), BelgiumHQ recorded Nov 6, 202651-20082 contacts →

Exact match

“We shape a vital living environment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchGembloux, BelgiumHQ recorded Nov 6, 202611-5037 contacts →

Exact match

“We create the world's best indoor climate for people and environment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchWevelgem, BelgiumHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“Waarom kiezen voor de ORA Group?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchMerelbeke, BelgiumHQ recorded Nov 6, 2026501-1,00029 contacts →

Exact match

“Studibo is a specialist in multidisciplinary solutions and certification.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchNamur, BelgiumHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“ISOLUTION est une société spécialisée dans l'isolation et la ventilation de bâtiment pour particuliers et professionnels, et ce depuis plus de 12 ans Aujourd'hui, Isolution compte…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchGhent, BelgiumHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“MijnEPB helpt architect en bouwheer met de nodige engineering voor hun project.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchGhent, BelgiumHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“Since the successful merge of OLFASCAN and ECOSCAN, MILVUS consulting has grown into a multidisciplinary firm offering independent, science-driven environmental advice.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchGlabbeek, BelgiumHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Ingenieurs en adviesbureau gespecialiseerd in de bouwsector en actief over heel België.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchTielt, BelgiumHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“Comfort Home is gespecialiseerd in het plaatsen van ventilatie in woningen, appartementen en kantoren.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLouvain-la-neuve, BelgiumHQ recorded Nov 6, 20261-1012 contacts →

Exact match

“ADVISTA est un bureau d’études et de conseils en environnement et développement durable.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchDestelbergen, BelgiumHQ recorded Nov 6, 20261-1011 contacts →

Exact match

“Technisch studiebureau, actief in de bouwsector en gespecialiseerd in HVAC, Elektriciteit, EPB, Hernieuwbare energie, Veiligheid, Milieu”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchEcaussinnes, BelgiumHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“Wascos has been offering high quality services of consulting engineering for 20 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchGenk, BelgiumHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Bij B-EA (Bouw & Energie Advies) ondersteunen we bouwheren, architecten en ontwikkelaars met praktisch energieadvies voor nieuwbouw- en renovatieprojecten.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchTongerlo, BelgiumHQ recorded Nov 6, 20261-108 contacts →

Exact match

“Studiebureau Cobbaut EPB Veiligheidscoördinatie Stabiliteitsstudies Ventilatie verslaggeving Blowerdoor”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBrussels, BelgiumHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Airscan delivers actionable services across buildings and cities to protect health and drive sustainability- Indoor air quality assessments: short-term diagnostics, source…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchGhent, BelgiumHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Studiebureau Tecclem is gespecialiseerd in EPB- & Ventilatieverslaggeving, Veiligheidscoördinatie, Stabiliteitsstudies, EPC en Blowerdoortesten.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchHerentals, BelgiumHQ recorded Nov 6, 20261-105 contacts →

Exact match

“AQ International is gespecialiseerd in het optimaliseren van lucht- en waterkwaliteit.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchChaudfontaine, BelgiumHQ recorded Nov 6, 20261-105 contacts →

Exact match

“Votre partenaire dans la gestion de votre environnement SBS Environnement : plus qu'un bureau d'études, LE partenaire dans la gestion de votre environnement.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchHeule, BelgiumHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Uw gezonde lucht, onze zorg!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBoortmeerbeek, BelgiumHQ recorded Nov 6, 20261-103 contacts →

Exact match

“Grondverontreinigingen kunnen, net als de terreinen, van allerlei aard zijn.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchWaregem, BelgiumHQ recorded Nov 6, 20261-103 contacts →

Exact match

“energieverslaggeving veiligheidscoördinatie bouwbegeleiding bouwexpertise BlowerDoor keuring privé riolering”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchLint, BelgiumHQ recorded Nov 6, 20261-103 contacts →

Exact match

“Bestbuildingconcept is een ingenieursbureau gespecialiseerd in het optimaliseren van het comfort, het binnenklimaat en het energieverbruik van niet-residentiële gebouwen gebaseerd…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchArdooie, BelgiumHQ recorded Nov 6, 20261-103 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchSt-gillis-waas, BelgiumHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Cotebo bvba is een bedrijf actief in inspecties en advies omtrent Veiligheid & Milieu.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 89 indoor environmental consultants based in Belgium

See the full list, filter by size, metro and specialty, and access 315 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Indoor environmental consultants based in Belgium at a glance

As of Nov 6, 2026
48.8%Verified-email coverage
7.2Average contacts per company
1-10Median size (employees)
4.5%Largest-city concentration · Ghent
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
67
11-50
18
51-200
3
501-1,000
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 89 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Belgium whose business descriptions match “indoor environmental consultants” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 315 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “indoor environmental consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many indoor environmental consultants are there based in Belgium?

RevenueBase identified 89 company matches for indoor environmental consultants associated with Belgium as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Trevi NV tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most indoor environmental consultants?

Ghent leads with 4 company records, followed by Brussels (3) and Boortmeerbeek (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 315 professional contacts with verified work emails tracked across these 89 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.