Company lists · Data refreshed October 2026
Top 25 Building energy retrofit companies based in Belgium
RevenueBase identified 63 company matches for building energy retrofit companies associated with Belgium as of October 2026 and tracks 407 professional contacts across them, including 113 with verified work emails. Brussels is the largest hub.
This list covers company matches for building energy retrofit companies 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 October 9, 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 25 largest building energy retrofit companies based in Belgium
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 103 contacts → | ||||
Exact match “Reno Energy est une entreprise spécialisée dans le secteur de la rénovation énergétique mais aussi dans la nouvelle construction.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 2 | 24 contacts → | ||||
Exact match “Soltis est une entreprise créée en 2008 qui accompagne professionnels et particuliers dans la mise en place de solutions vertes et rentables avec un seul but: améliorer…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 3 | 24 contacts → | ||||
Exact match “Quito existe pour offrir une solution coordonnée aux propriétaires cherchant à améliorer la performance énergétique de leur bien le plus simplement et esthétiquement possible afin…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 4 | 24 contacts → | ||||
Exact match “Cozie | Durable Comfort Cozie is a vibrant company that works with ENGIE to combine the energy and dynamism of a start-up with the technical competence & long-term vision of an…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 5 | 19 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 · Oct 9, 2026 · View company records in RevenueBase | |||||
| 6 | 19 contacts → | ||||
Exact match “Wattson maakt van gebouwen de gangmakers van de energietransitie.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 7 | 13 contacts → | ||||
Exact match “nergie zonder zorgen Ga je bouwen?” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 8 | 9 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 · Oct 9, 2026 · View company records in RevenueBase | |||||
| 9 | 8 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 10 | 8 contacts → | ||||
Exact match “Cleys bv is jouw specialist in energetische renovaties.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 11 | 8 contacts → | ||||
Exact match “Expert en solutions énergétiques, nous offrons une solution complète et sur mesure pour les projets de rénovation durable de nos clients.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 12 | 7 contacts → | ||||
Exact match “Beter renoveren of BENOveren doe je samen met BENOTEC.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 13 | 6 contacts → | ||||
Exact match “New Tech Projects staat voor 'new technology project development'.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 14 | 6 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 · Oct 9, 2026 · View company records in RevenueBase | |||||
| 15 | 5 contacts → | ||||
Exact match “We are focused on accelerating the energy transition helping companies, cooperatives, and cities empower their clients, members, and citizen to reduce their energy footprint while…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 16 | 5 contacts → | ||||
Exact match “BAUWENS ELEKTROMONTAGE is a construction company based out of 44 Oosteindeken, Lokeren, Belgium.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 17 | 4 contacts → | ||||
Exact match “Group Globe bevat drie deelbedrijven, die elk focussen op oplossingen omtrent renovatie en/of energiebesparing.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 18 | 4 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 19 | 4 contacts → | ||||
Exact match “Onis est une entreprise spécialisée dans la rénovation énergétique des bâtiments à Bruxelles.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 20 | 3 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 21 | 3 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 22 | 2 contacts → | ||||
Exact match “L’enveloppe extérieure de votre bâtiment va jouer un rôle clé dans l’isolation thermique et est votre meilleure alliée pour éviter les ponts thermiques et différentes déperditions…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 23 | 2 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 24 | 1 contacts → | ||||
Exact match “Verbouwingsexpert en architect voor een duurzame thuis- Vernieuwende werkwijze - Verruimende inzichten en adviezen - Focus op energiezuinigheid” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 25 | 1 contacts → | ||||
Exact match “Bij Havacman zijn we toegewijd aan het creëren van een comfortabel, energiezuinig en duurzaam binnenklimaat.” Recorded in the RevenueBase company graph · Oct 9, 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 “building energy retrofit companies”. 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 25 of 63 building energy retrofit companies based in Belgium
See the full list, filter by size, metro and specialty, and access 113 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Building energy retrofit companies based in Belgium at a glance
As of Oct 9, 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 63 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 “building energy retrofit companies” 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 113 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 October 9, 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 “building energy retrofit companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many building energy retrofit companies are there based in Belgium?
RevenueBase identified 63 company matches for building energy retrofit companies associated with Belgium as of October 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?
Reno Energy tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most building energy retrofit companies?
Brussels leads with 4 company records, followed by Kuurne (2) and Liege (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 113 professional contacts with verified work emails tracked across these 63 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 October 9, 2026.
Ready to reach these companies? Verified emails and direct dials for all 63 building energy retrofit companies based in Belgium. Start with a free account, no credit card.
Download this list →Related lists
Building energy retrofit companies by geography
- Building energy retrofit companies based in Paris, France
- Building energy retrofit companies based in London, United Kingdom
- Building energy retrofit companies based in New York, United States
- Building energy retrofit companies based in Australia
- Building energy retrofit companies based in Brazil
- Building energy retrofit companies based in Canada
- Building energy retrofit companies based in France
- Building energy retrofit companies based in Germany
- Building energy retrofit companies based in Ireland
- Building energy retrofit companies based in Italy
- Building energy retrofit companies based in the Netherlands
- Building energy retrofit companies based in Spain
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Building energy retrofit companies based in Paris, France
- Building energy retrofit companies based in London, United Kingdom
- Building energy retrofit companies based in New York, United States
- Building energy retrofit companies based in Australia
- Building energy retrofit companies based in Brazil
- Building energy retrofit companies based in Canada
Company intelligence · public preview
Top 25 building energy retrofit companies 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 63 matching company records for building energy retrofit companies based in Belgium, with 407 tracked contacts and 113 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 9, 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 25 building energy retrofit companies 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 |  Reno Energyreno.energyHQ: Liège (angleur), BelgiumReported employees: 51-200 | Liège (angleur), Belgium | 51-200 | Exact match | 103 contacts → |
“Reno Energy est une entreprise spécialisée dans le secteur de la rénovation énergétique mais aussi dans la nouvelle construction.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Soltissoltis.beHQ: Evere, BelgiumReported employees: 11-50 | Evere, Belgium | 11-50 | Exact match | 24 contacts → |
“Soltis est une entreprise créée en 2008 qui accompagne professionnels et particuliers dans la mise en place de solutions vertes et rentables avec un seul but: améliorer…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | QUITOquito.be HQ: Noville-les-bois, BelgiumReported employees: 1-10 | Noville-les-bois, Belgium | 1-10 | Exact match | 24 contacts → |
“Quito existe pour offrir une solution coordonnée aux propriétaires cherchant à améliorer la performance énergétique de leur bien le plus simplement et esthétiquement possible afin…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  cozie.becozie.beHQ: België, BelgiumReported employees: 51-200 | België, Belgium | 51-200 | Exact match | 24 contacts → |
“Cozie | Durable Comfort Cozie is a vibrant company that works with ENGIE to combine the energy and dynamism of a start-up with the technical competence & long-term vision of an…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Isolutionisolution.be HQ: Namur, BelgiumReported employees: 11-50 | Namur, Belgium | 11-50 | Exact match | 19 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 · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Wattson NVwattson.beHQ: Ghent, BelgiumReported employees: 11-50 | Ghent, Belgium | 11-50 | Exact match | 19 contacts → |
“Wattson maakt van gebouwen de gangmakers van de energietransitie.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Alfasunalfasun.beHQ: Ninove, BelgiumReported employees: 11-50 | Ninove, Belgium | 11-50 | Exact match | 13 contacts → |
“nergie zonder zorgen Ga je bouwen?” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Dauvisterdauvister.com HQ: Stavelot, BelgiumReported employees: 51-200 | Stavelot, Belgium | 51-200 | Exact match | 9 contacts → |
“Dauvister (170+ employees, 30M€ turnover) studies, installs and maintains energy efficency systems for homeowners as well as for large companies.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Alfa Cooling Technicsalfact.be HQ: Lokeren, BelgiumReported employees: 11-50 | Lokeren, Belgium | 11-50 | Exact match | 8 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 | CLEYScleys.be HQ: Waasmunster, BelgiumReported employees: 11-50 | Waasmunster, Belgium | 11-50 | Exact match | 8 contacts → |
“Cleys bv is jouw specialist in energetische renovaties.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | OXIRAoxira.be HQ: Louvain-la-neuve, BelgiumReported employees: 11-50 | Louvain-la-neuve, Belgium | 11-50 | Exact match | 8 contacts → |
“Expert en solutions énergétiques, nous offrons une solution complète et sur mesure pour les projets de rénovation durable de nos clients.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Benotecbenotec.be HQ: Mechelen, BelgiumReported employees: 11-50 | Mechelen, Belgium | 11-50 | Exact match | 7 contacts → |
“Beter renoveren of BENOveren doe je samen met BENOTEC.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | NEW Tech Projectsnewtechprojects.be HQ: Tongeren, BelgiumReported employees: 1-10 | Tongeren, Belgium | 1-10 | Exact match | 6 contacts → |
“New Tech Projects staat voor 'new technology project development'.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Optiwatt Scrloptiwatt.beHQ: Wauthier-braine, BelgiumReported employees: 1-10 | Wauthier-braine, Belgium | 1-10 | Exact match | 6 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 · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Impact US Todayimpactus.today HQ: Kortrijk, BelgiumReported employees: 1-10 | Kortrijk, Belgium | 1-10 | Exact match | 5 contacts → |
“We are focused on accelerating the energy transition helping companies, cooperatives, and cities empower their clients, members, and citizen to reduce their energy footprint while…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Bauwens Elektromontagebauwens-elektromontage.be HQ: Lokeren, BelgiumReported employees: 1-10 | Lokeren, Belgium | 1-10 | Exact match | 5 contacts → |
“BAUWENS ELEKTROMONTAGE is a construction company based out of 44 Oosteindeken, Lokeren, Belgium.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Group Globegroupglobe.be HQ: Diepenbeek, BelgiumReported employees: 11-50 | Diepenbeek, Belgium | 11-50 | Exact match | 4 contacts → |
“Group Globe bevat drie deelbedrijven, die elk focussen op oplossingen omtrent renovatie en/of energiebesparing.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Willems Tecnowillems-tecno.be HQ: Kortenberg, BelgiumReported employees: 1-10 | Kortenberg, Belgium | 1-10 | Exact match | 4 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 19 | ONISbe-onis.com HQ: Etterbeek, BelgiumReported employees: 1-10 | Etterbeek, Belgium | 1-10 | Exact match | 4 contacts → |
“Onis est une entreprise spécialisée dans la rénovation énergétique des bâtiments à Bruxelles.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | 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. | |||||
| 21 | 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. | |||||
| 22 | House UP SRLhouseup.be HQ: Schaerbeek, BelgiumReported employees: 1-10 | Schaerbeek, Belgium | 1-10 | Exact match | 2 contacts → |
“L’enveloppe extérieure de votre bâtiment va jouer un rôle clé dans l’isolation thermique et est votre meilleure alliée pour éviter les ponts thermiques et différentes déperditions…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Facilitusfacilitus.be HQ: Wommelgem, BelgiumReported employees: 1-10 | Wommelgem, Belgium | 1-10 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 24 | KVD Architectuur BVkvdarchitectuur.be HQ: Edegem, BelgiumReported employees: 1-10 | Edegem, Belgium | 1-10 | Exact match | 1 contacts → |
“Verbouwingsexpert en architect voor een duurzame thuis- Vernieuwende werkwijze - Verruimende inzichten en adviezen - Focus op energiezuinigheid” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Havacmanhavacman.beHQ: Antwerp, BelgiumReported employees: 1-10 | Antwerp, Belgium | 1-10 | Exact match | 1 contacts → |
“Bij Havacman zijn we toegewijd aan het creëren van een comfortabel, energiezuinig en duurzaam binnenklimaat.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 63 company matches
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Building energy retrofit companies: dataset insights
October 9, 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
62 records in the displayed employee bands.
1 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 63 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: October 9, 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 building energy retrofit companies?
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 building energy retrofit companies did RevenueBase find based in Belgium?
The saved snapshot records 63 matching company records, 407 tracked contacts and 113 verified emails. The public preview displays 25 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: October 9, 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
Building energy retrofit companies by geography
- Building energy retrofit companies based in Paris, France
- Building energy retrofit companies based in London, United Kingdom
- Building energy retrofit companies based in New York, United States
- Building energy retrofit companies based in Australia
- Building energy retrofit companies based in Brazil
- Building energy retrofit companies based in Canada
- Building energy retrofit companies based in France
- Building energy retrofit companies based in Germany
- Building energy retrofit companies based in Ireland
- Building energy retrofit companies based in Italy
- Building energy retrofit companies based in the Netherlands
- Building energy retrofit companies based in Spain
Cite this list
RevenueBase Data Team. Top 25 building energy retrofit companies based in Belgium. Snapshot: October 9, 2026. https://revenuebase.ai/companies/building-energy-retrofit-companies/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
- Building energy retrofit companies based in Paris, France
- Building energy retrofit companies based in London, United Kingdom
- Building energy retrofit companies based in New York, United States
- Building energy retrofit companies based in Australia
- Building energy retrofit companies based in Brazil
- Building energy retrofit companies based in Canada
Company intelligence · public preview
Top 25 building energy retrofit companies based in Belgium
RevenueBase records 63 matching company records for building energy retrofit companies based in Belgium, with 407 tracked contacts and 113 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 9, 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 25 building energy retrofit companies 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 | Reno Energyreno.energy HQ: Liège (angleur), BelgiumReported employees: 51-200 | Liège (angleur), Belgium | 51-200 | Exact match | 103 contacts → |
“Reno Energy est une entreprise spécialisée dans le secteur de la rénovation énergétique mais aussi dans la nouvelle construction.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Soltissoltis.be HQ: Evere, BelgiumReported employees: 11-50 | Evere, Belgium | 11-50 | Exact match | 24 contacts → |
“Soltis est une entreprise créée en 2008 qui accompagne professionnels et particuliers dans la mise en place de solutions vertes et rentables avec un seul but: améliorer…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | QUITOquito.be HQ: Noville-les-bois, BelgiumReported employees: 1-10 | Noville-les-bois, Belgium | 1-10 | Exact match | 24 contacts → |
“Quito existe pour offrir une solution coordonnée aux propriétaires cherchant à améliorer la performance énergétique de leur bien le plus simplement et esthétiquement possible afin…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | cozie.becozie.be HQ: België, BelgiumReported employees: 51-200 | België, Belgium | 51-200 | Exact match | 24 contacts → |
“Cozie | Durable Comfort Cozie is a vibrant company that works with ENGIE to combine the energy and dynamism of a start-up with the technical competence & long-term vision of an…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Isolutionisolution.be HQ: Namur, BelgiumReported employees: 11-50 | Namur, Belgium | 11-50 | Exact match | 19 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 · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Wattson NVwattson.be HQ: Ghent, BelgiumReported employees: 11-50 | Ghent, Belgium | 11-50 | Exact match | 19 contacts → |
“Wattson maakt van gebouwen de gangmakers van de energietransitie.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Alfasunalfasun.be HQ: Ninove, BelgiumReported employees: 11-50 | Ninove, Belgium | 11-50 | Exact match | 13 contacts → |
“nergie zonder zorgen Ga je bouwen?” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Dauvisterdauvister.com HQ: Stavelot, BelgiumReported employees: 51-200 | Stavelot, Belgium | 51-200 | Exact match | 9 contacts → |
“Dauvister (170+ employees, 30M€ turnover) studies, installs and maintains energy efficency systems for homeowners as well as for large companies.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Alfa Cooling Technicsalfact.be HQ: Lokeren, BelgiumReported employees: 11-50 | Lokeren, Belgium | 11-50 | Exact match | 8 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 | CLEYScleys.be HQ: Waasmunster, BelgiumReported employees: 11-50 | Waasmunster, Belgium | 11-50 | Exact match | 8 contacts → |
“Cleys bv is jouw specialist in energetische renovaties.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | OXIRAoxira.be HQ: Louvain-la-neuve, BelgiumReported employees: 11-50 | Louvain-la-neuve, Belgium | 11-50 | Exact match | 8 contacts → |
“Expert en solutions énergétiques, nous offrons une solution complète et sur mesure pour les projets de rénovation durable de nos clients.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Benotecbenotec.be HQ: Mechelen, BelgiumReported employees: 11-50 | Mechelen, Belgium | 11-50 | Exact match | 7 contacts → |
“Beter renoveren of BENOveren doe je samen met BENOTEC.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | NEW Tech Projectsnewtechprojects.be HQ: Tongeren, BelgiumReported employees: 1-10 | Tongeren, Belgium | 1-10 | Exact match | 6 contacts → |
“New Tech Projects staat voor 'new technology project development'.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Optiwatt Scrloptiwatt.be HQ: Wauthier-braine, BelgiumReported employees: 1-10 | Wauthier-braine, Belgium | 1-10 | Exact match | 6 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 · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Impact US Todayimpactus.today HQ: Kortrijk, BelgiumReported employees: 1-10 | Kortrijk, Belgium | 1-10 | Exact match | 5 contacts → |
“We are focused on accelerating the energy transition helping companies, cooperatives, and cities empower their clients, members, and citizen to reduce their energy footprint while…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Bauwens Elektromontagebauwens-elektromontage.be HQ: Lokeren, BelgiumReported employees: 1-10 | Lokeren, Belgium | 1-10 | Exact match | 5 contacts → |
“BAUWENS ELEKTROMONTAGE is a construction company based out of 44 Oosteindeken, Lokeren, Belgium.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Group Globegroupglobe.be HQ: Diepenbeek, BelgiumReported employees: 11-50 | Diepenbeek, Belgium | 11-50 | Exact match | 4 contacts → |
“Group Globe bevat drie deelbedrijven, die elk focussen op oplossingen omtrent renovatie en/of energiebesparing.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Willems Tecnowillems-tecno.be HQ: Kortenberg, BelgiumReported employees: 1-10 | Kortenberg, Belgium | 1-10 | Exact match | 4 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 19 | ONISbe-onis.com HQ: Etterbeek, BelgiumReported employees: 1-10 | Etterbeek, Belgium | 1-10 | Exact match | 4 contacts → |
“Onis est une entreprise spécialisée dans la rénovation énergétique des bâtiments à Bruxelles.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | 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. | |||||
| 21 | 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. | |||||
| 22 | House UP SRLhouseup.be HQ: Schaerbeek, BelgiumReported employees: 1-10 | Schaerbeek, Belgium | 1-10 | Exact match | 2 contacts → |
“L’enveloppe extérieure de votre bâtiment va jouer un rôle clé dans l’isolation thermique et est votre meilleure alliée pour éviter les ponts thermiques et différentes déperditions…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Facilitusfacilitus.be HQ: Wommelgem, BelgiumReported employees: 1-10 | Wommelgem, Belgium | 1-10 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 24 | KVD Architectuur BVkvdarchitectuur.be HQ: Edegem, BelgiumReported employees: 1-10 | Edegem, Belgium | 1-10 | Exact match | 1 contacts → |
“Verbouwingsexpert en architect voor een duurzame thuis- Vernieuwende werkwijze - Verruimende inzichten en adviezen - Focus op energiezuinigheid” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Havacmanhavacman.be HQ: Antwerp, BelgiumReported employees: 1-10 | Antwerp, Belgium | 1-10 | Exact match | 1 contacts → |
“Bij Havacman zijn we toegewijd aan het creëren van een comfortabel, energiezuinig en duurzaam binnenklimaat.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 63 company matches
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Building energy retrofit companies: dataset insights
October 9, 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
62 records in the displayed employee bands.
1 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 63 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: October 9, 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 building energy retrofit companies?
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 building energy retrofit companies did RevenueBase find based in Belgium?
The saved snapshot records 63 matching company records, 407 tracked contacts and 113 verified emails. The public preview displays 25 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: October 9, 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
Building energy retrofit companies by geography
- Building energy retrofit companies based in Paris, France
- Building energy retrofit companies based in London, United Kingdom
- Building energy retrofit companies based in New York, United States
- Building energy retrofit companies based in Australia
- Building energy retrofit companies based in Brazil
- Building energy retrofit companies based in Canada
- Building energy retrofit companies based in France
- Building energy retrofit companies based in Germany
- Building energy retrofit companies based in Ireland
- Building energy retrofit companies based in Italy
- Building energy retrofit companies based in the Netherlands
- Building energy retrofit companies based in Spain
Cite this list
RevenueBase Data Team. Top 25 building energy retrofit companies based in Belgium. Snapshot: October 9, 2026. https://revenuebase.ai/companies/building-energy-retrofit-companies/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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