Company lists · Data refreshed September 2026
Top 25 Energy efficient building contractors based in Germany
RevenueBase identified 1,062 company matches for energy efficient building contractors associated with Germany as of September 2026 and tracks 5,541 professional contacts across them, including 1,710 with verified work emails. Berlin is the largest hub.
This list covers company matches for energy efficient building contractors associated with Germany, 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 25 largest energy efficient building contractors based in Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 169 contacts → | ||||
Exact match “We have a passion for innovative and sustainable concepts.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 2 | 128 contacts → | ||||
Exact match “1967 gegründet, sind wir heute nicht nur eines der führenden deutschen Unternehmen im gebäudetechnischen Anlagenbau, sondern vor allem auch überzeugte Klimaschützer.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 3 | 125 contacts → | ||||
Exact match “ecoworks is the trusted partner for the housing sector when it comes to affordable, energy-efficient renovations.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 4 | 93 contacts → | ||||
Exact match “Gebäude.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 5 | 85 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 6 | 73 contacts → | ||||
Exact match “Wir bringen grüne Infrastruktur in Ihre Gebäude!” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 7 | 73 contacts → | ||||
Exact match “BAURCONSULT als inhabergeführtes Architektur- und Ingenieurbüro setzt seit mehr als 60 Jahren einen klaren Fokus auf Nachhaltigkeit und vereint zu diesem Zweck Spezialisten aus…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 8 | 64 contacts → | ||||
Exact match “High Comfort – Low Impact Transsolar KlimaEngineering ist ein international tätiges Ingenieurbüro.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 9 | 61 contacts → | ||||
Exact match “FACT.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 10 | 58 contacts → | ||||
Exact match “Assmann Emutec ist ein Unternehmen des BKW Engineering - Network of Excellence® – dem größten Engineering Netzwerk im deutschsprachigen Raum.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 11 | 52 contacts → | ||||
Exact match “ingenhoven associates is an international architecture studio with offices in Düsseldorf and Singapore, known for pioneering sustainable design since 1985.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 12 | 47 contacts → | ||||
Exact match “In a market full of complexity and empty promises, 42watt makes energy-efficient building modernization simple, reliable, and actionable.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 13 | 45 contacts → | ||||
Exact match “Wir entwickeln energieeffiziente Gebäude und klimaneutrale Quartiere für die Zukunft.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 14 | 42 contacts → | ||||
Exact match “Der Generalplaner für nachhaltiges Bauen & Sanieren Wir sind Ihr unabhängiger Partner für Energieberatung, Fördermittelmanagement und die energieeffiziente Planung und Umsetzung…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 15 | 40 contacts → | ||||
Exact match “a+r Architekten stehen für eine solide, umweltverträgliche und zukunftsorientierte Architektur mit einer überzeugenden Expertise im Bereich des nachhaltigen Bauens – auch im…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 16 | 39 contacts → | ||||
Exact match “Wir planen, errichten und betreuen Gebäude, die für ihren kompletten Lebenszyklus an Mensch und Umwelt ausgerichtet sind.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 17 | 37 contacts → | ||||
Exact match “Lang Hugger Rampp Architekten GmbH verfügen über mehr als 18 Jahre Erfahrung im Bereich des ressourcenschonenden, gestalterisch überzeugenden und technisch einwandfreien Bauens.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 18 | 34 contacts → | ||||
Exact match “Als inhabergeführtes Ingenieurbüro mit 35 Mitarbeitenden liegt peil und partner ingenieure GmbH zentral im Herzen Berlins.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 19 | 33 contacts → | ||||
Exact match “Architektur entsteht aus dem Zusammenspiel von Gestaltung und Funktion.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 20 | 33 contacts → | ||||
Exact match “Die DES GmbH ist ein Ingenieurbüro für Gebäudetechnik.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 21 | 33 contacts → | ||||
Exact match “Einfach, schnell und nachhaltig sanieren.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 22 | 30 contacts → | ||||
Exact match “Unsere Mission ist die Dekarbonisierung der Immobilienbranche.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 23 | 29 contacts → | ||||
Exact match “RENEWA ist dein unabhängiger Partner für energetische Sanierung.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 24 | 29 contacts → | ||||
Exact match “Das Büro Kai Otto Architekten plant und realisiert moderne und funktionale Bauprojekte für den Forschungs, Pharma- und Gesundheitsbereich genauso wie Bildungs- und Gewerbebauten.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase | |||||
| 25 | 28 contacts → | ||||
Exact match “Über uns Unternehmensleitbild INOVIS IN(n)OVATION Wir sind ein Team hervorragend ausgebildeter und motivierter Ingenieure und Mitarbeiter.” 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 25 of 1,062 energy efficient building contractors based in Germany
See the full list, filter by size, metro and specialty, and access 1,710 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Energy efficient building contractors based in Germany at a glance
As of Sep 16, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Germany, so it is reported there. Company counts and contact totals on this page are exact for Germany, over 1,062 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 Germany 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 1,710 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.
Energy efficient building contractors by metro
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 Germany?
RevenueBase identified 1,062 company matches for energy efficient building contractors associated with Germany 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?
ZWP Ingenieur-Ag 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?
Berlin leads with 73 company records, followed by Munich (50) and Hamburg (45).
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 1,710 professional contacts with verified work emails tracked across these 1,062 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 1,062 energy efficient building contractors based in Germany. Start with a free account, no credit card.
Download this list →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
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 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 25 energy efficient building contractors based in Germany
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 1,062 matching company records for energy efficient building contractors based in Germany, with 5,541 tracked contacts and 1,710 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: 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 25 energy efficient building contractors based in Germany
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 |  ZWP Ingenieur-Agzwp.deHQ: Cologne, GermanyReported employees: 201-500 | Cologne, Germany | 201-500 | Exact match | 169 contacts → |
“We have a passion for innovative and sustainable concepts.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Otto Building Technologies Gmbhottoindustries.comHQ: Bad Berleburg, GermanyReported employees: 501-1,000 | Bad Berleburg, Germany | 501-1,000 | Exact match | 128 contacts → |
“1967 gegründet, sind wir heute nicht nur eines der führenden deutschen Unternehmen im gebäudetechnischen Anlagenbau, sondern vor allem auch überzeugte Klimaschützer.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Ecoworksecoworks.tech HQ: Berlin, GermanyReported employees: 51-200 | Berlin, Germany | 51-200 | Exact match | 125 contacts → |
“ecoworks is the trusted partner for the housing sector when it comes to affordable, energy-efficient renovations.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Vollack Gruppevollack.deHQ: Karlsruhe, GermanyReported employees: 201-500 | Karlsruhe, Germany | 201-500 | Exact match | 93 contacts → |
“Gebäude.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Strengerstrenger.de HQ: Ludwigsburg, GermanyReported employees: 51-200 | Ludwigsburg, Germany | 51-200 | Exact match | 85 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 6 |  Empact Gmbhempact.energyHQ: Cologne, GermanyReported employees: 51-200 | Cologne, Germany | 51-200 | Exact match | 73 contacts → |
“Wir bringen grüne Infrastruktur in Ihre Gebäude!” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Baurconsult Architekten Ingenieurebaurconsult.comHQ: Haßfurt, GermanyReported employees: 201-500 | Haßfurt, Germany | 201-500 | Exact match | 73 contacts → |
“BAURCONSULT als inhabergeführtes Architektur- und Ingenieurbüro setzt seit mehr als 60 Jahren einen klaren Fokus auf Nachhaltigkeit und vereint zu diesem Zweck Spezialisten aus…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Transsolar Klimaengineeringtranssolar.comHQ: Stuttgart, GermanyReported employees: 51-200 | Stuttgart, Germany | 51-200 | Exact match | 64 contacts → |
“High Comfort – Low Impact Transsolar KlimaEngineering ist ein international tätiges Ingenieurbüro.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Fact Gmbh Efacilities Solutionsfact-gmbh.comHQ: Boblingen, GermanyReported employees: 51-200 | Boblingen, Germany | 51-200 | Exact match | 61 contacts → |
“FACT.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Assmann Emutecemutec.deHQ: Norderstedt, GermanyReported employees: 51-200 | Norderstedt, Germany | 51-200 | Exact match | 58 contacts → |
“Assmann Emutec ist ein Unternehmen des BKW Engineering - Network of Excellence® – dem größten Engineering Netzwerk im deutschsprachigen Raum.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Ingenhoven Associatesingenhovenassociates.comHQ: Duesseldorf, GermanyReported employees: 51-200 | Duesseldorf, Germany | 51-200 | Exact match | 52 contacts → |
“ingenhoven associates is an international architecture studio with offices in Düsseldorf and Singapore, known for pioneering sustainable design since 1985.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  42watt42watt.deHQ: Munich, GermanyReported employees: 51-200 | Munich, Germany | 51-200 | Exact match | 47 contacts → |
“In a market full of complexity and empty promises, 42watt makes energy-efficient building modernization simple, reliable, and actionable.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Egs-Plan Gmbhegs-plan.deHQ: Stuttgart, GermanyReported employees: 51-200 | Stuttgart, Germany | 51-200 | Exact match | 45 contacts → |
“Wir entwickeln energieeffiziente Gebäude und klimaneutrale Quartiere für die Zukunft.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Bode Unternehmensgruppebode.msHQ: Münster, GermanyReported employees: 51-200 | Münster, Germany | 51-200 | Exact match | 42 contacts → |
“Der Generalplaner für nachhaltiges Bauen & Sanieren Wir sind Ihr unabhängiger Partner für Energieberatung, Fördermittelmanagement und die energieeffiziente Planung und Umsetzung…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  A R Architekten Gmbhaplusr.deHQ: Stuttgart, GermanyReported employees: 51-200 | Stuttgart, Germany | 51-200 | Exact match | 40 contacts → |
“a+r Architekten stehen für eine solide, umweltverträgliche und zukunftsorientierte Architektur mit einer überzeugenden Expertise im Bereich des nachhaltigen Bauens – auch im…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Diebauingenieurediebauingenieure.comHQ: Karlsruhe, GermanyReported employees: 51-200 | Karlsruhe, Germany | 51-200 | Exact match | 39 contacts → |
“Wir planen, errichten und betreuen Gebäude, die für ihren kompletten Lebenszyklus an Mensch und Umwelt ausgerichtet sind.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Lang Hugger Rampp Architekten Gmbhlanghuggerrampp.deHQ: Munich, GermanyReported employees: 11-50 | Munich, Germany | 11-50 | Exact match | 37 contacts → |
“Lang Hugger Rampp Architekten GmbH verfügen über mehr als 18 Jahre Erfahrung im Bereich des ressourcenschonenden, gestalterisch überzeugenden und technisch einwandfreien Bauens.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Peil UND Partner Ingenieure Gmbhpeil-partner.deHQ: Berlin, GermanyReported employees: 51-200 | Berlin, Germany | 51-200 | Exact match | 34 contacts → |
“Als inhabergeführtes Ingenieurbüro mit 35 Mitarbeitenden liegt peil und partner ingenieure GmbH zentral im Herzen Berlins.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Köhler Architekten Beratende Ingenieure Gmbhrak-architekten.de HQ: Gauting, GermanyReported employees: 51-200 | Gauting, Germany | 51-200 | Exact match | 33 contacts → |
“Architektur entsteht aus dem Zusammenspiel von Gestaltung und Funktion.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  DES TGA Designdes.deHQ: Schwaan, GermanyReported employees: 51-200 | Schwaan, Germany | 51-200 | Exact match | 33 contacts → |
“Die DES GmbH ist ein Ingenieurbüro für Gebäudetechnik.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Renowaterenowate.earth HQ: Düsseldorf, GermanyReported employees: 11-50 | Düsseldorf, Germany | 11-50 | Exact match | 33 contacts → |
“Einfach, schnell und nachhaltig sanieren.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Caala LCA & CO -Optimierungcaala.deHQ: Munich, GermanyReported employees: 11-50 | Munich, Germany | 11-50 | Exact match | 30 contacts → |
“Unsere Mission ist die Dekarbonisierung der Immobilienbranche.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Renewa Gmbhrenewa.deHQ: Hamburg, GermanyReported employees: 51-200 | Hamburg, Germany | 51-200 | Exact match | 29 contacts → |
“RENEWA ist dein unabhängiger Partner für energetische Sanierung.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  KAI Otto Architektenkaiotto.deHQ: Munich, GermanyReported employees: 51-200 | Munich, Germany | 51-200 | Exact match | 29 contacts → |
“Das Büro Kai Otto Architekten plant und realisiert moderne und funktionale Bauprojekte für den Forschungs, Pharma- und Gesundheitsbereich genauso wie Bildungs- und Gewerbebauten.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Inovis Ingenieure Gmbhinovis-ingenieure.deHQ: Hauptniederlassung München / Süd, GermanyReported employees: 51-200 | Hauptniederlassung München / Süd, Germany | 51-200 | Exact match | 28 contacts → |
“Über uns Unternehmensleitbild INOVIS IN(n)OVATION Wir sind ein Team hervorragend ausgebildeter und motivierter Ingenieure und Mitarbeiter.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,062 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
1,020 records in the displayed employee bands.
42 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 Germany, so it is reported there. Company counts and contact totals on this page are exact for Germany, over 1,062 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 ↗
Energy efficient building contractors by metro
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 Germany?
The saved snapshot records 1,062 matching company records, 5,541 tracked contacts and 1,710 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: 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 25 energy efficient building contractors based in Germany. Snapshot: September 16, 2026. https://revenuebase.ai/companies/energy-efficient-building-contractors/germany.
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 25 energy efficient building contractors based in Germany
RevenueBase records 1,062 matching company records for energy efficient building contractors based in Germany, with 5,541 tracked contacts and 1,710 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: 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 25 energy efficient building contractors based in Germany
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 | ZWP Ingenieur-Agzwp.de HQ: Cologne, GermanyReported employees: 201-500 | Cologne, Germany | 201-500 | Exact match | 169 contacts → |
“We have a passion for innovative and sustainable concepts.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Otto Building Technologies Gmbhottoindustries.com HQ: Bad Berleburg, GermanyReported employees: 501-1,000 | Bad Berleburg, Germany | 501-1,000 | Exact match | 128 contacts → |
“1967 gegründet, sind wir heute nicht nur eines der führenden deutschen Unternehmen im gebäudetechnischen Anlagenbau, sondern vor allem auch überzeugte Klimaschützer.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Ecoworksecoworks.tech HQ: Berlin, GermanyReported employees: 51-200 | Berlin, Germany | 51-200 | Exact match | 125 contacts → |
“ecoworks is the trusted partner for the housing sector when it comes to affordable, energy-efficient renovations.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Vollack Gruppevollack.de HQ: Karlsruhe, GermanyReported employees: 201-500 | Karlsruhe, Germany | 201-500 | Exact match | 93 contacts → |
“Gebäude.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Strengerstrenger.de HQ: Ludwigsburg, GermanyReported employees: 51-200 | Ludwigsburg, Germany | 51-200 | Exact match | 85 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 6 | Empact Gmbhempact.energy HQ: Cologne, GermanyReported employees: 51-200 | Cologne, Germany | 51-200 | Exact match | 73 contacts → |
“Wir bringen grüne Infrastruktur in Ihre Gebäude!” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Baurconsult Architekten Ingenieurebaurconsult.com HQ: Haßfurt, GermanyReported employees: 201-500 | Haßfurt, Germany | 201-500 | Exact match | 73 contacts → |
“BAURCONSULT als inhabergeführtes Architektur- und Ingenieurbüro setzt seit mehr als 60 Jahren einen klaren Fokus auf Nachhaltigkeit und vereint zu diesem Zweck Spezialisten aus…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Transsolar Klimaengineeringtranssolar.com HQ: Stuttgart, GermanyReported employees: 51-200 | Stuttgart, Germany | 51-200 | Exact match | 64 contacts → |
“High Comfort – Low Impact Transsolar KlimaEngineering ist ein international tätiges Ingenieurbüro.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Fact Gmbh Efacilities Solutionsfact-gmbh.com HQ: Boblingen, GermanyReported employees: 51-200 | Boblingen, Germany | 51-200 | Exact match | 61 contacts → |
“FACT.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Assmann Emutecemutec.de HQ: Norderstedt, GermanyReported employees: 51-200 | Norderstedt, Germany | 51-200 | Exact match | 58 contacts → |
“Assmann Emutec ist ein Unternehmen des BKW Engineering - Network of Excellence® – dem größten Engineering Netzwerk im deutschsprachigen Raum.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Ingenhoven Associatesingenhovenassociates.com HQ: Duesseldorf, GermanyReported employees: 51-200 | Duesseldorf, Germany | 51-200 | Exact match | 52 contacts → |
“ingenhoven associates is an international architecture studio with offices in Düsseldorf and Singapore, known for pioneering sustainable design since 1985.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | 42watt42watt.de HQ: Munich, GermanyReported employees: 51-200 | Munich, Germany | 51-200 | Exact match | 47 contacts → |
“In a market full of complexity and empty promises, 42watt makes energy-efficient building modernization simple, reliable, and actionable.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Egs-Plan Gmbhegs-plan.de HQ: Stuttgart, GermanyReported employees: 51-200 | Stuttgart, Germany | 51-200 | Exact match | 45 contacts → |
“Wir entwickeln energieeffiziente Gebäude und klimaneutrale Quartiere für die Zukunft.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Bode Unternehmensgruppebode.ms HQ: Münster, GermanyReported employees: 51-200 | Münster, Germany | 51-200 | Exact match | 42 contacts → |
“Der Generalplaner für nachhaltiges Bauen & Sanieren Wir sind Ihr unabhängiger Partner für Energieberatung, Fördermittelmanagement und die energieeffiziente Planung und Umsetzung…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | A R Architekten Gmbhaplusr.de HQ: Stuttgart, GermanyReported employees: 51-200 | Stuttgart, Germany | 51-200 | Exact match | 40 contacts → |
“a+r Architekten stehen für eine solide, umweltverträgliche und zukunftsorientierte Architektur mit einer überzeugenden Expertise im Bereich des nachhaltigen Bauens – auch im…” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Diebauingenieurediebauingenieure.com HQ: Karlsruhe, GermanyReported employees: 51-200 | Karlsruhe, Germany | 51-200 | Exact match | 39 contacts → |
“Wir planen, errichten und betreuen Gebäude, die für ihren kompletten Lebenszyklus an Mensch und Umwelt ausgerichtet sind.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Lang Hugger Rampp Architekten Gmbhlanghuggerrampp.de HQ: Munich, GermanyReported employees: 11-50 | Munich, Germany | 11-50 | Exact match | 37 contacts → |
“Lang Hugger Rampp Architekten GmbH verfügen über mehr als 18 Jahre Erfahrung im Bereich des ressourcenschonenden, gestalterisch überzeugenden und technisch einwandfreien Bauens.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Peil UND Partner Ingenieure Gmbhpeil-partner.de HQ: Berlin, GermanyReported employees: 51-200 | Berlin, Germany | 51-200 | Exact match | 34 contacts → |
“Als inhabergeführtes Ingenieurbüro mit 35 Mitarbeitenden liegt peil und partner ingenieure GmbH zentral im Herzen Berlins.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Köhler Architekten Beratende Ingenieure Gmbhrak-architekten.de HQ: Gauting, GermanyReported employees: 51-200 | Gauting, Germany | 51-200 | Exact match | 33 contacts → |
“Architektur entsteht aus dem Zusammenspiel von Gestaltung und Funktion.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | DES TGA Designdes.de HQ: Schwaan, GermanyReported employees: 51-200 | Schwaan, Germany | 51-200 | Exact match | 33 contacts → |
“Die DES GmbH ist ein Ingenieurbüro für Gebäudetechnik.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Renowaterenowate.earth HQ: Düsseldorf, GermanyReported employees: 11-50 | Düsseldorf, Germany | 11-50 | Exact match | 33 contacts → |
“Einfach, schnell und nachhaltig sanieren.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Caala LCA & CO -Optimierungcaala.de HQ: Munich, GermanyReported employees: 11-50 | Munich, Germany | 11-50 | Exact match | 30 contacts → |
“Unsere Mission ist die Dekarbonisierung der Immobilienbranche.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Renewa Gmbhrenewa.de HQ: Hamburg, GermanyReported employees: 51-200 | Hamburg, Germany | 51-200 | Exact match | 29 contacts → |
“RENEWA ist dein unabhängiger Partner für energetische Sanierung.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | KAI Otto Architektenkaiotto.de HQ: Munich, GermanyReported employees: 51-200 | Munich, Germany | 51-200 | Exact match | 29 contacts → |
“Das Büro Kai Otto Architekten plant und realisiert moderne und funktionale Bauprojekte für den Forschungs, Pharma- und Gesundheitsbereich genauso wie Bildungs- und Gewerbebauten.” Recorded description excerpt · September 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Inovis Ingenieure Gmbhinovis-ingenieure.de HQ: Hauptniederlassung München / Süd, GermanyReported employees: 51-200 | Hauptniederlassung München / Süd, Germany | 51-200 | Exact match | 28 contacts → |
“Über uns Unternehmensleitbild INOVIS IN(n)OVATION Wir sind ein Team hervorragend ausgebildeter und motivierter Ingenieure und Mitarbeiter.” 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
1,020 records in the displayed employee bands.
42 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 Germany, so it is reported there. Company counts and contact totals on this page are exact for Germany, over 1,062 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 ↗
Energy efficient building contractors by metro
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 Germany?
The saved snapshot records 1,062 matching company records, 5,541 tracked contacts and 1,710 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: 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 25 energy efficient building contractors based in Germany. Snapshot: September 16, 2026. https://revenuebase.ai/companies/energy-efficient-building-contractors/germany.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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