Company lists · Data refreshed September 2026
Top 17 Energy efficient building contractors based in Luxembourg
RevenueBase identified 26 company matches for energy efficient building contractors associated with Luxembourg as of September 2026 and tracks 265 professional contacts across them, including 137 with verified work emails. Luxembourg is the largest hub.
This list covers company matches for energy efficient building contractors associated with Luxembourg, 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 September 16, 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 17 largest energy efficient building contractors based in Luxembourg
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 31 contacts → | ||||
Exact match “Jim Clemes Associates has made a lasting impression on the architectural culture of Luxembourg.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 2 | 30 contacts → | ||||
Exact match “Mission CLK propose un accompagnement personnalisé pour la création d'un cadre de vie unique, fonctionnel et inspirant.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 3 | 28 contacts → | ||||
Exact match “STEINMETZDEMEYER est un atelier d'architecture et d'urbanisme situé à Luxembourg-Bonnevoie.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 4 | 23 contacts → | ||||
Exact match “Steligence® is a global construction concept initiated by ArcelorMittal, designed to approach buildings as integrated, living systems rather than a collection of separate parts.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 5 | 19 contacts → | ||||
Exact match “BuildTec est un bureau d’étude spécialisé dans les énergies et dans les techniques du bâtiment.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 6 | 17 contacts → | ||||
Exact match “ENG] We believe that only conscious and responsible actions will help us ensure a safe and stable energy future.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 7 | 14 contacts → | ||||
Exact match “Crée en 2011, E3Consult est une jeune entreprise composée d'une équipe multidisciplinaire d'architectes, d'ingénieurs, de scientifiques et de spécialistes en biologie de l’habitat.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 8 | 9 contacts → | ||||
Exact match “Bureau d'études” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 9 | 7 contacts → | ||||
Exact match “ASARS Real Estate Development Company has been originally established in 1998 and is today operated by a group of highly qualified engineers, specialized in the area of…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 10 | 5 contacts → | ||||
Exact match “Architektur, Innenarchitektur, Städtebau, Landschaftsarchitektur, Energiepässe (CPE's)” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 11 | 5 contacts → | ||||
Exact match “FAT ARCHITECTS SARL We – an association of architects and engineers – develop and create future-oriented, socially acceptable building concepts in harmony with natural…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 12 | 4 contacts → | ||||
Exact match “atelier b architectes – christian barsotti et associés s.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 13 | 4 contacts → | ||||
Exact match “Active au Grand-Duché de Luxembourg et en Wallonie, EG Energy est un bureau d’ingénieurs-conseils spécialisé dans l’étude énergétique des bâtiments pour les entreprises publiques…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 14 | 4 contacts → | ||||
Exact match “Les experts de l'agence pour l'efficacité énergétique des bâtiments COCERT vous accompagnent dans la réalisation de constructions plus durables et énergétiquement efficaces, de la…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 15 | 3 contacts → | ||||
Exact match “Den Energie- und Ressourcenverbrauch minimieren, den Flächenverbrauch reduzieren und die Natur durch ein Gebäude während des gesamten Lebenszyklus (Bau, Nutzung und Rückbau)…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 16 | 3 contacts → | ||||
Exact match “IDES Engineering is a green building "boutique" engineering firm, dedicated to energy-efficient and sustainable real estate projects since 2008.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 17 | 2 contacts → | ||||
Exact match “Entreprise générale de constructions et rénovations durables clés en mains– la société Wansart – construit des maisons basse énergie et passive selon son propre concept.” Recorded in the RevenueBase company graph · Sep 16, 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 efficient building contractors”. 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 17 of 26 energy efficient building contractors based in Luxembourg
See the full list, filter by size, metro and specialty, and access 137 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Energy efficient building contractors based in Luxembourg at a glance
As of Sep 16, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Luxembourg, so it is reported there. Company counts and contact totals on this page are exact for Luxembourg, over 26 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 Luxembourg whose business descriptions match “energy efficient building contractors” 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 137 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 September 16, 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 efficient building contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many energy efficient building contractors are there based in Luxembourg?
RevenueBase identified 26 company matches for energy efficient building contractors associated with Luxembourg as of September 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?
JIM Clemes Associates tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most energy efficient building contractors?
Luxembourg leads with 4 company records, followed by Esch-Sur-Alzette (3) and Steinfort (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 137 professional contacts with verified work emails tracked across these 26 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 September 16, 2026.
Ready to reach these companies? Verified emails and direct dials for all 26 energy efficient building contractors based in Luxembourg. Start with a free account, no credit card.
Download this list →Related lists
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
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- New lists
- Energy efficient building contractors based in Toronto, Canada
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Company intelligence · public preview
Top 17 energy efficient building contractors based in Luxembourg
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 26 matching company records for energy efficient building contractors based in Luxembourg, with 265 tracked contacts and 137 verified work emails.
This public preview shows 17 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 16, 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 17 energy efficient building contractors based in Luxembourg
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 |  JIM Clemes Associatesjimclemes.comHQ: Esch-sur-alzette, LuxembourgReported employees: 51-200 | Esch-sur-alzette, Luxembourg | 51-200 | Exact match | 31 contacts → |
“Jim Clemes Associates has made a lasting impression on the architectural culture of Luxembourg.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  CLK Constructionsclk.luHQ: Mertzig, LuxembourgReported employees: 51-200 | Mertzig, Luxembourg | 51-200 | Exact match | 30 contacts → |
“Mission CLK propose un accompagnement personnalisé pour la création d'un cadre de vie unique, fonctionnel et inspirant.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HQ: LuxembourgReported employees: 11-50 | Luxembourg | 11-50 | Exact match | 28 contacts → |
“STEINMETZDEMEYER est un atelier d'architecture et d'urbanisme situé à Luxembourg-Bonnevoie.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Arcelormittal Steligencesteligence.arcelormittal.comHQ: Esch-sur-alzette, LuxembourgReported employees: 51-200 | Esch-sur-alzette, Luxembourg | 51-200 | Exact match | 23 contacts → |
“Steligence® is a global construction concept initiated by ArcelorMittal, designed to approach buildings as integrated, living systems rather than a collection of separate parts.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Buildtecbuildtec.luHQ: Steinfort, LuxembourgReported employees: 1-10 | Steinfort, Luxembourg | 1-10 | Exact match | 19 contacts → |
“BuildTec est un bureau d’étude spécialisé dans les énergies et dans les techniques du bâtiment.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Voltmax Sarlvoltmax.luHQ: Soleuvre, LuxembourgReported employees: 11-50 | Soleuvre, Luxembourg | 11-50 | Exact match | 17 contacts → |
“ENG] We believe that only conscious and responsible actions will help us ensure a safe and stable energy future.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  E3consulte3consult.luHQ: Mertert, LuxembourgReported employees: 11-50 | Mertert, Luxembourg | 11-50 | Exact match | 14 contacts → |
“Crée en 2011, E3Consult est une jeune entreprise composée d'une équipe multidisciplinaire d'architectes, d'ingénieurs, de scientifiques et de spécialistes en biologie de l’habitat.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Betatec Ingénieurs-Conseils S.À R.Lbetatec.luHQ: Heiderscheid, LuxembourgReported employees: 1-10 | Heiderscheid, Luxembourg | 1-10 | Exact match | 9 contacts → |
“Bureau d'études” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Asars Constructions S.Aasars.luHQ: LuxembourgReported employees: 1-10 | Luxembourg | 1-10 | Exact match | 7 contacts → |
“ASARS Real Estate Development Company has been originally established in 1998 and is today operated by a group of highly qualified engineers, specialized in the area of…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  GAP Architectesgap-architectes.luHQ: Machtum, LuxembourgReported employees: 11-50 | Machtum, Luxembourg | 11-50 | Exact match | 5 contacts → |
“Architektur, Innenarchitektur, Städtebau, Landschaftsarchitektur, Energiepässe (CPE's)” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | FAT Architects Sarlfat.lu HQ: Munsbach, LuxembourgReported employees: 1-10 | Munsbach, Luxembourg | 1-10 | Exact match | 5 contacts → |
“FAT ARCHITECTS SARL We – an association of architects and engineers – develop and create future-oriented, socially acceptable building concepts in harmony with natural…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Atelier B Architectesatelierb.luHQ: Bereldange, LuxembourgReported employees: 11-50 | Bereldange, Luxembourg | 11-50 | Exact match | 4 contacts → |
“atelier b architectes – christian barsotti et associés s.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  EG Energyegenergy.euHQ: Beckerich, LuxembourgReported employees: 1-10 | Beckerich, Luxembourg | 1-10 | Exact match | 4 contacts → |
“Active au Grand-Duché de Luxembourg et en Wallonie, EG Energy est un bureau d’ingénieurs-conseils spécialisé dans l’étude énergétique des bâtiments pour les entreprises publiques…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Cocert S.Acocert.lu HQ: Bettembourg, LuxembourgReported employees: 1-10 | Bettembourg, Luxembourg | 1-10 | Exact match | 4 contacts → |
“Les experts de l'agence pour l'efficacité énergétique des bâtiments COCERT vous accompagnent dans la réalisation de constructions plus durables et énergétiquement efficaces, de la…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Goca Constructions S.Àr.Lgoca.lu HQ: Essingen, LuxembourgReported employees: 51-200 | Essingen, Luxembourg | 51-200 | Exact match | 3 contacts → |
“Den Energie- und Ressourcenverbrauch minimieren, den Flächenverbrauch reduzieren und die Natur durch ein Gebäude während des gesamten Lebenszyklus (Bau, Nutzung und Rückbau)…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Ides Sàrlides.luHQ: Steinfort, LuxembourgReported employees: 1-10 | Steinfort, Luxembourg | 1-10 | Exact match | 3 contacts → |
“IDES Engineering is a green building "boutique" engineering firm, dedicated to energy-efficient and sustainable real estate projects since 2008.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: L-9164 Lipperscheid, LuxembourgReported employees: 1-10 | L-9164 Lipperscheid, Luxembourg | 1-10 | Exact match | 2 contacts → |
“Entreprise générale de constructions et rénovations durables clés en mains– la société Wansart – construit des maisons basse énergie et passive selon son propre concept.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 17 of 26 company matches
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Energy efficient building contractors: dataset insights
September 16, 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
26 records in the displayed employee bands.
0 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 Luxembourg, so it is reported there. Company counts and contact totals on this page are exact for Luxembourg, over 26 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: September 16, 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 efficient building contractors?
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 efficient building contractors did RevenueBase find based in Luxembourg?
The saved snapshot records 26 matching company records, 265 tracked contacts and 137 verified emails. The public preview displays 17 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: September 16, 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 efficient building contractors by geography
- Energy efficient building contractors based in Toronto, Canada
- Energy efficient building contractors based in Vancouver, Canada
- Energy efficient building contractors based in Berlin, Germany
- Energy efficient building contractors based in Hamburg, Germany
- Energy efficient building contractors based in Stuttgart, Germany
- Energy efficient building contractors based in Bangalore, India
- Energy efficient building contractors based in Chennai, India
- Energy efficient building contractors based in Mumbai, India
- Energy efficient building contractors based in Pune, India
- Energy efficient building contractors based in Barcelona, Spain
- Energy efficient building contractors based in Madrid, Spain
- Energy efficient building contractors based in Atlanta, United States
Cite this list
RevenueBase Data Team. Top 17 energy efficient building contractors based in Luxembourg. Snapshot: September 16, 2026. https://revenuebase.ai/companies/energy-efficient-building-contractors/luxembourg.
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 efficient building contractors based in Toronto, Canada
- Energy efficient building contractors based in Vancouver, Canada
- Energy efficient building contractors based in Berlin, Germany
- Energy efficient building contractors based in Hamburg, Germany
- Energy efficient building contractors based in Stuttgart, Germany
- Energy efficient building contractors based in Bangalore, India
Company intelligence · public preview
Top 17 energy efficient building contractors based in Luxembourg
RevenueBase records 26 matching company records for energy efficient building contractors based in Luxembourg, with 265 tracked contacts and 137 verified work emails.
This public preview shows 17 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 16, 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 17 energy efficient building contractors based in Luxembourg
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 | JIM Clemes Associatesjimclemes.com HQ: Esch-sur-alzette, LuxembourgReported employees: 51-200 | Esch-sur-alzette, Luxembourg | 51-200 | Exact match | 31 contacts → |
“Jim Clemes Associates has made a lasting impression on the architectural culture of Luxembourg.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | CLK Constructionsclk.lu HQ: Mertzig, LuxembourgReported employees: 51-200 | Mertzig, Luxembourg | 51-200 | Exact match | 30 contacts → |
“Mission CLK propose un accompagnement personnalisé pour la création d'un cadre de vie unique, fonctionnel et inspirant.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HQ: LuxembourgReported employees: 11-50 | Luxembourg | 11-50 | Exact match | 28 contacts → |
“STEINMETZDEMEYER est un atelier d'architecture et d'urbanisme situé à Luxembourg-Bonnevoie.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Arcelormittal Steligencesteligence.arcelormittal.com HQ: Esch-sur-alzette, LuxembourgReported employees: 51-200 | Esch-sur-alzette, Luxembourg | 51-200 | Exact match | 23 contacts → |
“Steligence® is a global construction concept initiated by ArcelorMittal, designed to approach buildings as integrated, living systems rather than a collection of separate parts.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Buildtecbuildtec.lu HQ: Steinfort, LuxembourgReported employees: 1-10 | Steinfort, Luxembourg | 1-10 | Exact match | 19 contacts → |
“BuildTec est un bureau d’étude spécialisé dans les énergies et dans les techniques du bâtiment.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Voltmax Sarlvoltmax.lu HQ: Soleuvre, LuxembourgReported employees: 11-50 | Soleuvre, Luxembourg | 11-50 | Exact match | 17 contacts → |
“ENG] We believe that only conscious and responsible actions will help us ensure a safe and stable energy future.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | E3consulte3consult.lu HQ: Mertert, LuxembourgReported employees: 11-50 | Mertert, Luxembourg | 11-50 | Exact match | 14 contacts → |
“Crée en 2011, E3Consult est une jeune entreprise composée d'une équipe multidisciplinaire d'architectes, d'ingénieurs, de scientifiques et de spécialistes en biologie de l’habitat.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Betatec Ingénieurs-Conseils S.À R.Lbetatec.lu HQ: Heiderscheid, LuxembourgReported employees: 1-10 | Heiderscheid, Luxembourg | 1-10 | Exact match | 9 contacts → |
“Bureau d'études” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Asars Constructions S.Aasars.lu HQ: LuxembourgReported employees: 1-10 | Luxembourg | 1-10 | Exact match | 7 contacts → |
“ASARS Real Estate Development Company has been originally established in 1998 and is today operated by a group of highly qualified engineers, specialized in the area of…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | GAP Architectesgap-architectes.lu HQ: Machtum, LuxembourgReported employees: 11-50 | Machtum, Luxembourg | 11-50 | Exact match | 5 contacts → |
“Architektur, Innenarchitektur, Städtebau, Landschaftsarchitektur, Energiepässe (CPE's)” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | FAT Architects Sarlfat.lu HQ: Munsbach, LuxembourgReported employees: 1-10 | Munsbach, Luxembourg | 1-10 | Exact match | 5 contacts → |
“FAT ARCHITECTS SARL We – an association of architects and engineers – develop and create future-oriented, socially acceptable building concepts in harmony with natural…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Atelier B Architectesatelierb.lu HQ: Bereldange, LuxembourgReported employees: 11-50 | Bereldange, Luxembourg | 11-50 | Exact match | 4 contacts → |
“atelier b architectes – christian barsotti et associés s.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | EG Energyegenergy.eu HQ: Beckerich, LuxembourgReported employees: 1-10 | Beckerich, Luxembourg | 1-10 | Exact match | 4 contacts → |
“Active au Grand-Duché de Luxembourg et en Wallonie, EG Energy est un bureau d’ingénieurs-conseils spécialisé dans l’étude énergétique des bâtiments pour les entreprises publiques…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Cocert S.Acocert.lu HQ: Bettembourg, LuxembourgReported employees: 1-10 | Bettembourg, Luxembourg | 1-10 | Exact match | 4 contacts → |
“Les experts de l'agence pour l'efficacité énergétique des bâtiments COCERT vous accompagnent dans la réalisation de constructions plus durables et énergétiquement efficaces, de la…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Goca Constructions S.Àr.Lgoca.lu HQ: Essingen, LuxembourgReported employees: 51-200 | Essingen, Luxembourg | 51-200 | Exact match | 3 contacts → |
“Den Energie- und Ressourcenverbrauch minimieren, den Flächenverbrauch reduzieren und die Natur durch ein Gebäude während des gesamten Lebenszyklus (Bau, Nutzung und Rückbau)…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Ides Sàrlides.lu HQ: Steinfort, LuxembourgReported employees: 1-10 | Steinfort, Luxembourg | 1-10 | Exact match | 3 contacts → |
“IDES Engineering is a green building "boutique" engineering firm, dedicated to energy-efficient and sustainable real estate projects since 2008.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: L-9164 Lipperscheid, LuxembourgReported employees: 1-10 | L-9164 Lipperscheid, Luxembourg | 1-10 | Exact match | 2 contacts → |
“Entreprise générale de constructions et rénovations durables clés en mains– la société Wansart – construit des maisons basse énergie et passive selon son propre concept.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Energy efficient building contractors: dataset insights
September 16, 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
26 records in the displayed employee bands.
0 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 Luxembourg, so it is reported there. Company counts and contact totals on this page are exact for Luxembourg, over 26 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: September 16, 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 efficient building contractors?
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 efficient building contractors did RevenueBase find based in Luxembourg?
The saved snapshot records 26 matching company records, 265 tracked contacts and 137 verified emails. The public preview displays 17 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: September 16, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 17 energy efficient building contractors based in Luxembourg. Snapshot: September 16, 2026. https://revenuebase.ai/companies/energy-efficient-building-contractors/luxembourg.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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