Company lists · Data refreshed November 2026
Top 20 Hvac efficiency upgrade providers based in Belgium
RevenueBase identified 46 company matches for hvac efficiency upgrade providers associated with Belgium as of November 2026 and tracks 198 professional contacts across them, including 92 with verified work emails. Ghent is the largest hub.
This list covers company matches for hvac efficiency upgrade providers 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.
The 20 largest hvac efficiency upgrade providers based in Belgium
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 24 contacts → | ||||
Exact match “Ecopuur bekijkt het verbruikspatroon van je huidige of nieuwe woning.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 20 contacts → | ||||
Exact match “Wattson maakt van gebouwen de gangmakers van de energietransitie.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 18 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 | |||||
| 4 | 14 contacts → | ||||
Exact match “nergie zonder zorgen Ga je bouwen?” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 12 contacts → | ||||
Exact match “Bewust omgaan met energie is voor zowel bedrijven als particulieren een hot topic.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 10 contacts → | ||||
Exact match “KLIMAPLAN is a construction company based out of 83 Blauwesteenstraat, Kontich, Belgium.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 10 contacts → | ||||
Exact match “Dauvister (170+ employees, 30M€ turnover) studies, installs and maintains energy efficency systems for homeowners as well as for large companies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 8 contacts → | ||||
Exact match “Fondée en 1969 par José et Nicole Grommet, l' entreprise n' a cessé d' évoluer rapidement dans les applications HVAC.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 7 contacts → | ||||
Exact match “Intéressé par- L'optimisation de vos ressources énergétiques- L'amélioration du confort de vos bâtiments- La valorisation de votre patrimoine immobilier- La maîtrise de vos coûts…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 7 contacts → | ||||
Exact match “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.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 6 contacts → | ||||
Exact match “BAUWENS ELEKTROMONTAGE is a construction company based out of 44 Oosteindeken, Lokeren, Belgium.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 4 contacts → | ||||
Exact match “Verwarmingsaudit - Airco Energie Audit - Conditiemeting NEN2767” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 3 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 3 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 2 contacts → | ||||
Exact match “INDUSTRIUM is an engineering & energy efficiency firm with expertise in technical challenges and is thé partner for industry and retail in ea.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 2 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 1 contacts → | ||||
Exact match “Absytech une société à portée de main située au 146 Rue d'Anderlues à Lobbes en Belgique.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 1 contacts → | ||||
Exact match “Premium Energy is een Warmtepompen / Airconditioning installateur in Houthalen.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 1 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 1 contacts → | ||||
Exact match “Zit u vast in een eindeloze cyclus van te warm, te koud, en nooit precies goed?” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “hvac efficiency upgrade providers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 20 of 46 hvac efficiency upgrade providers based in Belgium
See the full list, filter by size, metro and specialty, and access 92 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Hvac efficiency upgrade providers based in Belgium at a glance
As of Nov 6, 2026Companies by employee count
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 46 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 “hvac efficiency upgrade providers” 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 92 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 “hvac efficiency upgrade providers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many hvac efficiency upgrade providers are there based in Belgium?
RevenueBase identified 46 company matches for hvac efficiency upgrade providers 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?
Ecopuur tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most hvac efficiency upgrade providers?
Ghent leads with 3 company records, followed by Bilzen (2) and Aalter (1).
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 92 professional contacts with verified work emails tracked across these 46 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.
Ready to reach these companies? Verified emails and direct dials for all 46 hvac efficiency upgrade providers based in Belgium. Start with a free account, no credit card.
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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.
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Company intelligence · public preview
Top 20 hvac efficiency upgrade providers based in Belgium
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 46 matching company records for hvac efficiency upgrade providers based in Belgium, with 198 tracked contacts and 92 verified work emails.
This public preview shows 20 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 20 hvac efficiency upgrade providers based in Belgium
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Ecopuurecopuur.beHQ: 9850, BelgiumReported employees: 11-50 | 9850, Belgium | 11-50 | Exact match | 24 contacts → |
“Ecopuur bekijkt het verbruikspatroon van je huidige of nieuwe woning.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Wattson NVwattson.beHQ: Ghent, BelgiumReported employees: 11-50 | Ghent, Belgium | 11-50 | Exact match | 20 contacts → |
“Wattson maakt van gebouwen de gangmakers van de energietransitie.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Isolutionisolution.beHQ: Namur, BelgiumReported employees: 11-50 | Namur, Belgium | 11-50 | Exact match | 18 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Alfasunalfasun.beHQ: Ninove, BelgiumReported employees: 11-50 | Ninove, Belgium | 11-50 | Exact match | 14 contacts → |
“nergie zonder zorgen Ga je bouwen?” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  VDB Engineeringvdbengineering.comHQ: Mechelen, BelgiumReported employees: 11-50 | Mechelen, Belgium | 11-50 | Exact match | 12 contacts → |
“Bewust omgaan met energie is voor zowel bedrijven als particulieren een hot topic.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Klimaplanklimaplan.euHQ: Kontich, BelgiumReported employees: 11-50 | Kontich, Belgium | 11-50 | Exact match | 10 contacts → |
“KLIMAPLAN is a construction company based out of 83 Blauwesteenstraat, Kontich, Belgium.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Dauvisterdauvister.com HQ: Stavelot, BelgiumReported employees: 51-200 | Stavelot, Belgium | 51-200 | Exact match | 10 contacts → |
“Dauvister (170+ employees, 30M€ turnover) studies, installs and maintains energy efficency systems for homeowners as well as for large companies.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  grommet.begrommet.beHQ: Battice, BelgiumReported employees: 11-50 | Battice, Belgium | 11-50 | Exact match | 8 contacts → |
“Fondée en 1969 par José et Nicole Grommet, l' entreprise n' a cessé d' évoluer rapidement dans les applications HVAC.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Optiwatt Scrloptiwatt.beHQ: Wauthier-braine, BelgiumReported employees: 1-10 | Wauthier-braine, Belgium | 1-10 | Exact match | 7 contacts → |
“Intéressé par- L'optimisation de vos ressources énergétiques- L'amélioration du confort de vos bâtiments- La valorisation de votre patrimoine immobilier- La maîtrise de vos coûts…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Econergy Sprleconergy.beHQ: Soignies, BelgiumReported employees: 11-50 | Soignies, Belgium | 11-50 | Exact match | 7 contacts → |
“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.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Bauwens Elektromontagebauwens-elektromontage.beHQ: Lokeren, BelgiumReported employees: 1-10 | Lokeren, Belgium | 1-10 | Exact match | 6 contacts → |
“BAUWENS ELEKTROMONTAGE is a construction company based out of 44 Oosteindeken, Lokeren, Belgium.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Crescon BVcrescon-bv.beHQ: Pittem, BelgiumReported employees: 1-10 | Pittem, Belgium | 1-10 | Exact match | 4 contacts → |
“Verwarmingsaudit - Airco Energie Audit - Conditiemeting NEN2767” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | A2 Conseilsa2conseils.be HQ: Habay, BelgiumReported employees: 1-10 | Habay, Belgium | 1-10 | Exact match | 3 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 14 | Isoprotectisoprotect.be HQ: Brussels, BelgiumReported employees: 1-10 | Brussels, Belgium | 1-10 | Exact match | 3 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 15 | Industriumindustrium.be HQ: Ghent, BelgiumReported employees: 11-50 | Ghent, Belgium | 11-50 | Exact match | 2 contacts → |
“INDUSTRIUM is an engineering & energy efficiency firm with expertise in technical challenges and is thé partner for industry and retail in ea.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Favor Coolfavor-cool.beHQ: Dilsen-stokkem, BelgiumReported employees: 1-10 | Dilsen-stokkem, Belgium | 1-10 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 17 |  Absytechabsytech.beHQ: Lobbes, BelgiumReported employees: 11-50 | Lobbes, Belgium | 11-50 | Exact match | 1 contacts → |
“Absytech une société à portée de main située au 146 Rue d'Anderlues à Lobbes en Belgique.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Premium Energypremium-energy.beHQ: Genk, BelgiumReported employees: 1-10 | Genk, Belgium | 1-10 | Exact match | 1 contacts → |
“Premium Energy is een Warmtepompen / Airconditioning installateur in Houthalen.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Matthys EN Zoonmatthys-en-zoon.be HQ: Laarne, BelgiumReported employees: 1-10 | Laarne, Belgium | 1-10 | Exact match | 1 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 20 |  Clima-Tes Airco & Warmtepompenclima-tes.beHQ: Beersel, BelgiumReported employees: 1-10 | Beersel, Belgium | 1-10 | Exact match | 1 contacts → |
“Zit u vast in een eindeloze cyclus van te warm, te koud, en nooit precies goed?” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 20 of 46 company matches
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Hvac efficiency upgrade providers: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
43 records in the displayed employee bands.
3 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 46 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for hvac efficiency upgrade providers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many hvac efficiency upgrade providers did RevenueBase find based in Belgium?
The saved snapshot records 46 matching company records, 198 tracked contacts and 92 verified emails. The public preview displays 20 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Hvac efficiency upgrade providers by geography
- Hvac efficiency upgrade providers based in Toronto, Canada
- Hvac efficiency upgrade providers based in Austin, United States
- Hvac efficiency upgrade providers based in Houston, United States
- Hvac efficiency upgrade providers based in New York, United States
- Hvac efficiency upgrade providers based in Australia
- Hvac efficiency upgrade providers based in Canada
- Hvac efficiency upgrade providers based in France
- Hvac efficiency upgrade providers based in Germany
- Hvac efficiency upgrade providers based in India
- Hvac efficiency upgrade providers based in Ireland
- Hvac efficiency upgrade providers based in Italy
- Hvac efficiency upgrade providers based in the Netherlands
Cite this list
RevenueBase Data Team. Top 20 hvac efficiency upgrade providers based in Belgium. Snapshot: November 6, 2026. https://revenuebase.ai/companies/hvac-efficiency-upgrade-providers/belgium.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Hvac efficiency upgrade providers based in Toronto, Canada
- Hvac efficiency upgrade providers based in Austin, United States
- Hvac efficiency upgrade providers based in Houston, United States
- Hvac efficiency upgrade providers based in New York, United States
- Hvac efficiency upgrade providers based in Australia
- Hvac efficiency upgrade providers based in Canada
Company intelligence · public preview
Top 20 hvac efficiency upgrade providers based in Belgium
RevenueBase records 46 matching company records for hvac efficiency upgrade providers based in Belgium, with 198 tracked contacts and 92 verified work emails.
This public preview shows 20 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 20 hvac efficiency upgrade providers based in Belgium
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Ecopuurecopuur.be HQ: 9850, BelgiumReported employees: 11-50 | 9850, Belgium | 11-50 | Exact match | 24 contacts → |
“Ecopuur bekijkt het verbruikspatroon van je huidige of nieuwe woning.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Wattson NVwattson.be HQ: Ghent, BelgiumReported employees: 11-50 | Ghent, Belgium | 11-50 | Exact match | 20 contacts → |
“Wattson maakt van gebouwen de gangmakers van de energietransitie.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Isolutionisolution.be HQ: Namur, BelgiumReported employees: 11-50 | Namur, Belgium | 11-50 | Exact match | 18 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Alfasunalfasun.be HQ: Ninove, BelgiumReported employees: 11-50 | Ninove, Belgium | 11-50 | Exact match | 14 contacts → |
“nergie zonder zorgen Ga je bouwen?” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | VDB Engineeringvdbengineering.com HQ: Mechelen, BelgiumReported employees: 11-50 | Mechelen, Belgium | 11-50 | Exact match | 12 contacts → |
“Bewust omgaan met energie is voor zowel bedrijven als particulieren een hot topic.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Klimaplanklimaplan.eu HQ: Kontich, BelgiumReported employees: 11-50 | Kontich, Belgium | 11-50 | Exact match | 10 contacts → |
“KLIMAPLAN is a construction company based out of 83 Blauwesteenstraat, Kontich, Belgium.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Dauvisterdauvister.com HQ: Stavelot, BelgiumReported employees: 51-200 | Stavelot, Belgium | 51-200 | Exact match | 10 contacts → |
“Dauvister (170+ employees, 30M€ turnover) studies, installs and maintains energy efficency systems for homeowners as well as for large companies.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | grommet.begrommet.be HQ: Battice, BelgiumReported employees: 11-50 | Battice, Belgium | 11-50 | Exact match | 8 contacts → |
“Fondée en 1969 par José et Nicole Grommet, l' entreprise n' a cessé d' évoluer rapidement dans les applications HVAC.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Optiwatt Scrloptiwatt.be HQ: Wauthier-braine, BelgiumReported employees: 1-10 | Wauthier-braine, Belgium | 1-10 | Exact match | 7 contacts → |
“Intéressé par- L'optimisation de vos ressources énergétiques- L'amélioration du confort de vos bâtiments- La valorisation de votre patrimoine immobilier- La maîtrise de vos coûts…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Econergy Sprleconergy.be HQ: Soignies, BelgiumReported employees: 11-50 | Soignies, Belgium | 11-50 | Exact match | 7 contacts → |
“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.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Bauwens Elektromontagebauwens-elektromontage.be HQ: Lokeren, BelgiumReported employees: 1-10 | Lokeren, Belgium | 1-10 | Exact match | 6 contacts → |
“BAUWENS ELEKTROMONTAGE is a construction company based out of 44 Oosteindeken, Lokeren, Belgium.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Crescon BVcrescon-bv.be HQ: Pittem, BelgiumReported employees: 1-10 | Pittem, Belgium | 1-10 | Exact match | 4 contacts → |
“Verwarmingsaudit - Airco Energie Audit - Conditiemeting NEN2767” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | A2 Conseilsa2conseils.be HQ: Habay, BelgiumReported employees: 1-10 | Habay, Belgium | 1-10 | Exact match | 3 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 14 | Isoprotectisoprotect.be HQ: Brussels, BelgiumReported employees: 1-10 | Brussels, Belgium | 1-10 | Exact match | 3 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 15 | Industriumindustrium.be HQ: Ghent, BelgiumReported employees: 11-50 | Ghent, Belgium | 11-50 | Exact match | 2 contacts → |
“INDUSTRIUM is an engineering & energy efficiency firm with expertise in technical challenges and is thé partner for industry and retail in ea.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Favor Coolfavor-cool.be HQ: Dilsen-stokkem, BelgiumReported employees: 1-10 | Dilsen-stokkem, Belgium | 1-10 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 17 | Absytechabsytech.be HQ: Lobbes, BelgiumReported employees: 11-50 | Lobbes, Belgium | 11-50 | Exact match | 1 contacts → |
“Absytech une société à portée de main située au 146 Rue d'Anderlues à Lobbes en Belgique.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Premium Energypremium-energy.be HQ: Genk, BelgiumReported employees: 1-10 | Genk, Belgium | 1-10 | Exact match | 1 contacts → |
“Premium Energy is een Warmtepompen / Airconditioning installateur in Houthalen.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Matthys EN Zoonmatthys-en-zoon.be HQ: Laarne, BelgiumReported employees: 1-10 | Laarne, Belgium | 1-10 | Exact match | 1 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 20 | Clima-Tes Airco & Warmtepompenclima-tes.be HQ: Beersel, BelgiumReported employees: 1-10 | Beersel, Belgium | 1-10 | Exact match | 1 contacts → |
“Zit u vast in een eindeloze cyclus van te warm, te koud, en nooit precies goed?” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 20 of 46 company matches
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Hvac efficiency upgrade providers: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
43 records in the displayed employee bands.
3 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 46 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for hvac efficiency upgrade providers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many hvac efficiency upgrade providers did RevenueBase find based in Belgium?
The saved snapshot records 46 matching company records, 198 tracked contacts and 92 verified emails. The public preview displays 20 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 20 hvac efficiency upgrade providers based in Belgium. Snapshot: November 6, 2026. https://revenuebase.ai/companies/hvac-efficiency-upgrade-providers/belgium.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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