Company lists · Data refreshed October 2026
Top 25 Energy retrofitting companies based in Belgium
RevenueBase identified 149 company matches for energy retrofitting companies associated with Belgium as of October 2026 and tracks 2,596 professional contacts across them, including 1,008 with verified work emails. Brussels is the largest hub.
This list covers company matches for energy retrofitting 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 12, 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 energy retrofitting companies based in Belgium
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,705 contacts → | ||||
Exact match “Knauf Insulation is one of the world’s largest manufacturers of insulation products and solutions.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 2 | 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 12, 2026 · View company records in RevenueBase | |||||
| 3 | 53 contacts → | ||||
Exact match “EnergyKing werd in 2013 opgericht door twee ingenieurs: Lucas & Wiet.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 4 | 28 contacts → | ||||
Exact match “Goessens est une société spécialisée dans l'installation de systèmes de chauffage, de ventilation et de climatisation.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 5 | 24 contacts → | ||||
Exact match “Group VHC zorgt al meer dan 25 jaar voor slimme oplossingen in verwarming, koeling, ventilatie en zonne energie.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 6 | 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 12, 2026 · View company records in RevenueBase | |||||
| 7 | 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 12, 2026 · View company records in RevenueBase | |||||
| 8 | 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 12, 2026 · View company records in RevenueBase | |||||
| 9 | 22 contacts → | ||||
Exact match “Ecopuur bekijkt het verbruikspatroon van je huidige of nieuwe woning.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 10 | 20 contacts → | ||||
Exact match “Energieconcepten biedt duurzame energieoplossingen voor het verwarmen, ventileren, verlichten, sturen… van gebouwen.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 11 | 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 12, 2026 · View company records in RevenueBase | |||||
| 12 | 19 contacts → | ||||
Exact match “Wattson maakt van gebouwen de gangmakers van de energietransitie.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 13 | 13 contacts → | ||||
Exact match “nergie zonder zorgen Ga je bouwen?” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 14 | 11 contacts → | ||||
Exact match “Bewust omgaan met energie is voor zowel bedrijven als particulieren een hot topic.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 15 | 11 contacts → | ||||
Exact match “Wij helpen jouw bedrijf van A tot Z om maatschappelijk verantwoord te ondernemen en op drie cruciale vlakken winst te boeken.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 16 | 11 contacts → | ||||
Exact match “Ecosol+ is partner in je zoektocht naar de meest energie-onafhankelijke oplossingen voor HVAC.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 17 | 11 contacts → | ||||
Exact match “Proenergy is een bedrijf dat in 2010 werd opgericht door Steven Roels, gedreven door een grote passie voor groene energie-installaties zoals zonnepanelen, warmtepompen…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 18 | 10 contacts → | ||||
Exact match “We are planning the path to climate neutrality.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 19 | 10 contacts → | ||||
Exact match “BOWERS® creëert doordachte woon- en werkplekken door goed te isoleren, optimaal te ventileren, energiezuinig te verwarmen en alles ‘smart’ op elkaar af te stemmen.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 20 | 9 contacts → | ||||
Exact match “Bij Solitec zetten we ons in om bedrijven en particulieren te helpen in hun transitie naar een duurzamere toekomst, met oplossingen die niet alleen energie-efficiënt maar ook…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 21 | 9 contacts → | ||||
Exact match “KLIMAPLAN is a construction company based out of 83 Blauwesteenstraat, Kontich, Belgium.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 22 | 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 12, 2026 · View company records in RevenueBase | |||||
| 23 | 8 contacts → | ||||
Exact match “Cleys bv is jouw specialist in energetische renovaties.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 24 | 8 contacts → | ||||
Exact match “Sun Eco is de specialist in uw woning energie efficiënter te maken.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 25 | 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 12, 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 “energy retrofitting 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 149 energy retrofitting companies based in Belgium
See the full list, filter by size, metro and specialty, and access 1,008 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Energy retrofitting companies based in Belgium at a glance
As of Oct 12, 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 149 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 “energy retrofitting 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 1,008 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 12, 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 “energy retrofitting companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many energy retrofitting companies are there based in Belgium?
RevenueBase identified 149 company matches for energy retrofitting 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?
Knauf Insulation tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most energy retrofitting companies?
Brussels leads with 5 company records, followed by Arendonk (4) and Bilzen (4).
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 1,008 professional contacts with verified work emails tracked across these 149 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 12, 2026.
Ready to reach these companies? Verified emails and direct dials for all 149 energy retrofitting companies based in Belgium. Start with a free account, no credit card.
Download this list →Related lists
Energy retrofitting companies by geography
- Energy retrofitting companies based in Toronto, Canada
- Energy retrofitting companies based in Paris, France
- Energy retrofitting companies based in Berlin, Germany
- Energy retrofitting companies based in Milan, Italy
- Energy retrofitting companies based in London, United Kingdom
- Energy retrofitting companies based in Chicago, United States
- Energy retrofitting companies based in New York, United States
- Energy retrofitting companies based in Australia
- Energy retrofitting companies based in Austria
- Energy retrofitting companies based in Brazil
- Energy retrofitting companies based in Canada
- Energy retrofitting companies based in Czechia
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
- Energy retrofitting companies based in Toronto, Canada
- Energy retrofitting companies based in Paris, France
- Energy retrofitting companies based in Berlin, Germany
- Energy retrofitting companies based in Milan, Italy
- Energy retrofitting companies based in London, United Kingdom
- Energy retrofitting companies based in Chicago, United States
Company intelligence · public preview
Top 25 energy retrofitting 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 149 matching company records for energy retrofitting companies based in Belgium, with 2,596 tracked contacts and 1,008 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 12, 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 energy retrofitting 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 | Knauf Insulationknaufinsulation.com HQ: Vise, BelgiumReported employees: 5,001-10,000 | Vise, Belgium | 5,001-10,000 | Exact match | 1,705 contacts → |
“Knauf Insulation is one of the world’s largest manufacturers of insulation products and solutions.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Energykingenergyking.beHQ: Herent, BelgiumReported employees: 51-200 | Herent, Belgium | 51-200 | Exact match | 53 contacts → |
“EnergyKing werd in 2013 opgericht door twee ingenieurs: Lucas & Wiet.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Goessensgoessens.beHQ: Hannut, BelgiumReported employees: 51-200 | Hannut, Belgium | 51-200 | Exact match | 28 contacts → |
“Goessens est une société spécialisée dans l'installation de systèmes de chauffage, de ventilation et de climatisation.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Group VHCgroupvhc.beHQ: Overijse, BelgiumReported employees: 51-200 | Overijse, Belgium | 51-200 | Exact match | 24 contacts → |
“Group VHC zorgt al meer dan 25 jaar voor slimme oplossingen in verwarming, koeling, ventilatie en zonne energie.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | 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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Ecopuurecopuur.beHQ: 9850, BelgiumReported employees: 11-50 | 9850, Belgium | 11-50 | Exact match | 22 contacts → |
“Ecopuur bekijkt het verbruikspatroon van je huidige of nieuwe woning.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Energieconceptenenergieconcepten.be HQ: Arendonk, BelgiumReported employees: 11-50 | Arendonk, Belgium | 11-50 | Exact match | 20 contacts → |
“Energieconcepten biedt duurzame energieoplossingen voor het verwarmen, ventileren, verlichten, sturen… van gebouwen.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | 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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  VDB Engineeringvdbengineering.comHQ: Mechelen, BelgiumReported employees: 11-50 | Mechelen, Belgium | 11-50 | Exact match | 11 contacts → |
“Bewust omgaan met energie is voor zowel bedrijven als particulieren een hot topic.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Ensatecensatec.beHQ: Genk, BelgiumReported employees: 1-10 | Genk, Belgium | 1-10 | Exact match | 11 contacts → |
“Wij helpen jouw bedrijf van A tot Z om maatschappelijk verantwoord te ondernemen en op drie cruciale vlakken winst te boeken.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Ecosolecosolplus.be HQ: Peer, BelgiumReported employees: 11-50 | Peer, Belgium | 11-50 | Exact match | 11 contacts → |
“Ecosol+ is partner in je zoektocht naar de meest energie-onafhankelijke oplossingen voor HVAC.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Proenergyproenergy.beHQ: Ruiselede, BelgiumReported employees: 11-50 | Ruiselede, Belgium | 11-50 | Exact match | 11 contacts → |
“Proenergy is een bedrijf dat in 2010 werd opgericht door Steven Roels, gedreven door een grote passie voor groene energie-installaties zoals zonnepanelen, warmtepompen…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Factor4factor4.euHQ: Antwerp, BelgiumReported employees: 1-10 | Antwerp, Belgium | 1-10 | Exact match | 10 contacts → |
“We are planning the path to climate neutrality.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Bowersbowers.be HQ: Gistel, BelgiumReported employees: 11-50 | Gistel, Belgium | 11-50 | Exact match | 10 contacts → |
“BOWERS® creëert doordachte woon- en werkplekken door goed te isoleren, optimaal te ventileren, energiezuinig te verwarmen en alles ‘smart’ op elkaar af te stemmen.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Solitecsolitec.be HQ: 9000, BelgiumReported employees: 11-50 | 9000, Belgium | 11-50 | Exact match | 9 contacts → |
“Bij Solitec zetten we ons in om bedrijven en particulieren te helpen in hun transitie naar een duurzamere toekomst, met oplossingen die niet alleen energie-efficiënt maar ook…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Klimaplanklimaplan.eu HQ: Kontich, BelgiumReported employees: 11-50 | Kontich, Belgium | 11-50 | Exact match | 9 contacts → |
“KLIMAPLAN is a construction company based out of 83 Blauwesteenstraat, Kontich, Belgium.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | 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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | 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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  SUN ECOsuneco.beHQ: Herentals, BelgiumReported employees: 51-200 | Herentals, Belgium | 51-200 | Exact match | 8 contacts → |
“Sun Eco is de specialist in uw woning energie efficiënter te maken.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | 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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 149 company matches
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Energy retrofitting companies: dataset insights
October 12, 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
148 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 149 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 12, 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 energy retrofitting 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 energy retrofitting companies did RevenueBase find based in Belgium?
The saved snapshot records 149 matching company records, 2,596 tracked contacts and 1,008 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 12, 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
Energy retrofitting companies by geography
- Energy retrofitting companies based in Toronto, Canada
- Energy retrofitting companies based in Paris, France
- Energy retrofitting companies based in Berlin, Germany
- Energy retrofitting companies based in Milan, Italy
- Energy retrofitting companies based in London, United Kingdom
- Energy retrofitting companies based in Chicago, United States
- Energy retrofitting companies based in New York, United States
- Energy retrofitting companies based in Australia
- Energy retrofitting companies based in Austria
- Energy retrofitting companies based in Brazil
- Energy retrofitting companies based in Canada
- Energy retrofitting companies based in Czechia
Cite this list
RevenueBase Data Team. Top 25 energy retrofitting companies based in Belgium. Snapshot: October 12, 2026. https://revenuebase.ai/companies/energy-retrofitting-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
- Energy retrofitting companies based in Toronto, Canada
- Energy retrofitting companies based in Paris, France
- Energy retrofitting companies based in Berlin, Germany
- Energy retrofitting companies based in Milan, Italy
- Energy retrofitting companies based in London, United Kingdom
- Energy retrofitting companies based in Chicago, United States
Company intelligence · public preview
Top 25 energy retrofitting companies based in Belgium
RevenueBase records 149 matching company records for energy retrofitting companies based in Belgium, with 2,596 tracked contacts and 1,008 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 12, 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 energy retrofitting 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 | Knauf Insulationknaufinsulation.com HQ: Vise, BelgiumReported employees: 5,001-10,000 | Vise, Belgium | 5,001-10,000 | Exact match | 1,705 contacts → |
“Knauf Insulation is one of the world’s largest manufacturers of insulation products and solutions.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | 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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Energykingenergyking.be HQ: Herent, BelgiumReported employees: 51-200 | Herent, Belgium | 51-200 | Exact match | 53 contacts → |
“EnergyKing werd in 2013 opgericht door twee ingenieurs: Lucas & Wiet.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Goessensgoessens.be HQ: Hannut, BelgiumReported employees: 51-200 | Hannut, Belgium | 51-200 | Exact match | 28 contacts → |
“Goessens est une société spécialisée dans l'installation de systèmes de chauffage, de ventilation et de climatisation.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Group VHCgroupvhc.be HQ: Overijse, BelgiumReported employees: 51-200 | Overijse, Belgium | 51-200 | Exact match | 24 contacts → |
“Group VHC zorgt al meer dan 25 jaar voor slimme oplossingen in verwarming, koeling, ventilatie en zonne energie.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | 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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | 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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | 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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Ecopuurecopuur.be HQ: 9850, BelgiumReported employees: 11-50 | 9850, Belgium | 11-50 | Exact match | 22 contacts → |
“Ecopuur bekijkt het verbruikspatroon van je huidige of nieuwe woning.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Energieconceptenenergieconcepten.be HQ: Arendonk, BelgiumReported employees: 11-50 | Arendonk, Belgium | 11-50 | Exact match | 20 contacts → |
“Energieconcepten biedt duurzame energieoplossingen voor het verwarmen, ventileren, verlichten, sturen… van gebouwen.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | 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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | 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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | 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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | VDB Engineeringvdbengineering.com HQ: Mechelen, BelgiumReported employees: 11-50 | Mechelen, Belgium | 11-50 | Exact match | 11 contacts → |
“Bewust omgaan met energie is voor zowel bedrijven als particulieren een hot topic.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Ensatecensatec.be HQ: Genk, BelgiumReported employees: 1-10 | Genk, Belgium | 1-10 | Exact match | 11 contacts → |
“Wij helpen jouw bedrijf van A tot Z om maatschappelijk verantwoord te ondernemen en op drie cruciale vlakken winst te boeken.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Ecosolecosolplus.be HQ: Peer, BelgiumReported employees: 11-50 | Peer, Belgium | 11-50 | Exact match | 11 contacts → |
“Ecosol+ is partner in je zoektocht naar de meest energie-onafhankelijke oplossingen voor HVAC.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Proenergyproenergy.be HQ: Ruiselede, BelgiumReported employees: 11-50 | Ruiselede, Belgium | 11-50 | Exact match | 11 contacts → |
“Proenergy is een bedrijf dat in 2010 werd opgericht door Steven Roels, gedreven door een grote passie voor groene energie-installaties zoals zonnepanelen, warmtepompen…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Factor4factor4.eu HQ: Antwerp, BelgiumReported employees: 1-10 | Antwerp, Belgium | 1-10 | Exact match | 10 contacts → |
“We are planning the path to climate neutrality.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Bowersbowers.be HQ: Gistel, BelgiumReported employees: 11-50 | Gistel, Belgium | 11-50 | Exact match | 10 contacts → |
“BOWERS® creëert doordachte woon- en werkplekken door goed te isoleren, optimaal te ventileren, energiezuinig te verwarmen en alles ‘smart’ op elkaar af te stemmen.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Solitecsolitec.be HQ: 9000, BelgiumReported employees: 11-50 | 9000, Belgium | 11-50 | Exact match | 9 contacts → |
“Bij Solitec zetten we ons in om bedrijven en particulieren te helpen in hun transitie naar een duurzamere toekomst, met oplossingen die niet alleen energie-efficiënt maar ook…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Klimaplanklimaplan.eu HQ: Kontich, BelgiumReported employees: 11-50 | Kontich, Belgium | 11-50 | Exact match | 9 contacts → |
“KLIMAPLAN is a construction company based out of 83 Blauwesteenstraat, Kontich, Belgium.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | 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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | 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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | SUN ECOsuneco.be HQ: Herentals, BelgiumReported employees: 51-200 | Herentals, Belgium | 51-200 | Exact match | 8 contacts → |
“Sun Eco is de specialist in uw woning energie efficiënter te maken.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | 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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 149 company matches
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Energy retrofitting companies: dataset insights
October 12, 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
148 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 149 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 12, 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 energy retrofitting 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 energy retrofitting companies did RevenueBase find based in Belgium?
The saved snapshot records 149 matching company records, 2,596 tracked contacts and 1,008 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 12, 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
Energy retrofitting companies by geography
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Cite this list
RevenueBase Data Team. Top 25 energy retrofitting companies based in Belgium. Snapshot: October 12, 2026. https://revenuebase.ai/companies/energy-retrofitting-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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