Company lists · Data refreshed October 2026
Top 25 Building energy efficiency companies based in Germany
RevenueBase identified 729 company matches for building energy efficiency companies associated with Germany as of October 2026 and tracks 6,807 professional contacts across them, including 2,600 with verified work emails. Berlin is the largest hub.
This list covers company matches for building energy efficiency companies 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 October 9, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest building energy efficiency companies based in Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,503 contacts → | ||||
Exact match “Wir geben Häusern eine Zukunft.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 2 | 560 contacts → | ||||
Exact match “Our DNA are sustainable buildings As a Smart Building Solutioneer, we combine intelligent building technologies, data-based services, sustainable excellence and multiple synergy…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 3 | 196 contacts → | ||||
Exact match “Wir sind Ihr Partner für die smarte Energiewende in der Wohnimmobilie.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 4 | 148 contacts → | ||||
Exact match “Die PAUL Tech AG mit Sitz in Mannheim macht Bestandsimmobilien grün und werthaltig.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 5 | 146 contacts → | ||||
Exact match “At tado° we believe that unnecessarily wasting energy should be a thing of the past.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 6 | 135 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 · Oct 9, 2026 · View company records in RevenueBase | |||||
| 7 | 115 contacts → | ||||
Exact match “Wir verbinden Anlagentechnik und maßgeschneiderte Services, um die Energie unserer Kunden optimal einzusetzen - und das seit über 120 Jahren.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 8 | 106 contacts → | ||||
Exact match “Since 2017, ENVIRIA develops comprehensive, integrated energy solutions for commercial and industrial clients.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 9 | 88 contacts → | ||||
Exact match “Wir als End-to-End Partner denken Energie ganzheitlich, wie kein anderer: Wir realisieren die Energieversorgung unserer Kunden als integriertes Gesamtsystem und übernehmen dabei…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 10 | 79 contacts → | ||||
Exact match “ENLOC – Energiedienstleister der Wohnungswirtschaft Die Enloc bietet innovative Lösungen unter Einbeziehung erneuerbarer Energien im Rahmen der Wärmelieferung/Contracting.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 11 | 78 contacts → | ||||
Exact match “Wir wollen, dass so viele Immobilien wie möglich energieeffizient saniert werden.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 12 | 77 contacts → | ||||
Exact match “With about 14 million hours of operation, meteoviva is the leading provider for AI-based solutions for optimised building operations worldwide - and ISO 27001 certified.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 13 | 76 contacts → | ||||
Exact match “As a technology leader in building automation, DEOS AG has been developing and producing innovative building automation and energy management systems “Made in Germany” with secure…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 14 | 72 contacts → | ||||
Exact match “Seit über vier Jahrzehnten setzen Kunden auf innovative Energiespartechnik aus dem Hause ONI.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 15 | 54 contacts → | ||||
Exact match “e-con AG Die e-con AG ist seit 20 Jahren im Einsatz für erneuerbare Energien und versteht sich als Partner für die Energiewende.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 16 | 49 contacts → | ||||
Exact match “Since its founding 20 years ago, ÖKOTEC stands for intelligent solutions for the reduction of energy and resource consumption.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 17 | 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 · Oct 9, 2026 · View company records in RevenueBase | |||||
| 18 | 44 contacts → | ||||
Exact match “Betterspace develops smart software solutions that make your day-to-day work easier.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 19 | 41 contacts → | ||||
Exact match “Recogizer unterstützt Bestandshalter, Eigentümer und Dienstleister dabei, die Nachhaltigkeit von Gewerbeimmobilien messbar zu steigern.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 20 | 39 contacts → | ||||
Exact match “Technical equipment - Integrated building planning - Energy systems” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 21 | 35 contacts → | ||||
Exact match “metr aims to accelerate the reduction of global CO2 emissions and make buildings more energy-efficient and sustainable.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 22 | 34 contacts → | ||||
Exact match “Die Berliner Energieagentur GmbH (BEA) ist ein modernes Energiedienstleistungsunternehmen.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 23 | 33 contacts → | ||||
Exact match “HOSCH Gebäudeautomation wurde 2002 in Teltow gegründet und hat sich als fabrikatsunabhängiger Systemintegrator mit Niederlassungen in Nürnberg, Hamburg und Düsseldorf in…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 24 | 32 contacts → | ||||
Exact match “Energy-efficient building renovations are complex.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 25 | 30 contacts → | ||||
Exact match “RENEWA ist dein unabhängiger Partner für energetische Sanierung.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “building energy efficiency 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 729 building energy efficiency companies based in Germany
See the full list, filter by size, metro and specialty, and access 2,600 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Building energy efficiency companies based in Germany at a glance
As of Oct 9, 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 729 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 “building energy efficiency 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 2,600 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on October 9, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Building energy efficiency companies 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 “building energy efficiency companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many building energy efficiency companies are there based in Germany?
RevenueBase identified 729 company matches for building energy efficiency companies associated with Germany 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?
ISTA tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most building energy efficiency companies?
Berlin leads with 55 company records, followed by Munich (28) and Hamburg (24).
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 2,600 professional contacts with verified work emails tracked across these 729 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 9, 2026.
Ready to reach these companies? Verified emails and direct dials for all 729 building energy efficiency companies based in Germany. Start with a free account, no credit card.
Download this list →Related lists
Building energy efficiency companies by geography
- Building energy efficiency companies based in Melbourne, Australia
- Building energy efficiency companies based in Rio De Janeiro, Brazil
- Building energy efficiency companies based in Sao Paulo, Brazil
- Building energy efficiency companies based in Toronto, Canada
- Building energy efficiency companies based in Lyon, France
- Building energy efficiency companies based in Paris, France
- Building energy efficiency companies based in Berlin, Germany
- Building energy efficiency companies based in Munich, Germany
- Building energy efficiency companies based in Budapest, Hungary
- Building energy efficiency companies based in Bangalore, India
- Building energy efficiency companies based in Mumbai, India
- Building energy efficiency companies based in Pune, India
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Building energy efficiency companies based in Melbourne, Australia
- Building energy efficiency companies based in Rio De Janeiro, Brazil
- Building energy efficiency companies based in Sao Paulo, Brazil
- Building energy efficiency companies based in Toronto, Canada
- Building energy efficiency companies based in Lyon, France
- Building energy efficiency companies based in Paris, France
Company intelligence · public preview
Top 25 building energy efficiency companies 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 729 matching company records for building energy efficiency companies based in Germany, with 6,807 tracked contacts and 2,600 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 9, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 building energy efficiency companies 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 |  ISTAista.lyHQ: Essen, GermanyReported employees: 5,001-10,000 | Essen, Germany | 5,001-10,000 | Exact match | 1,503 contacts → |
“Wir geben Häusern eine Zukunft.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Kieback&peterkieback-peter.comHQ: Berlin, GermanyReported employees: 1,001-5,000 | Berlin, Germany | 1,001-5,000 | Exact match | 560 contacts → |
“Our DNA are sustainable buildings As a Smart Building Solutioneer, we combine intelligent building technologies, data-based services, sustainable excellence and multiple synergy…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Kalorimeta Gmbhkalo.deHQ: Hamburg, GermanyReported employees: 501-1,000 | Hamburg, Germany | 501-1,000 | Exact match | 196 contacts → |
“Wir sind Ihr Partner für die smarte Energiewende in der Wohnimmobilie.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Paul Tech AGpaul.techHQ: Mannheim, GermanyReported employees: 51-200 | Mannheim, Germany | 51-200 | Exact match | 148 contacts → |
“Die PAUL Tech AG mit Sitz in Mannheim macht Bestandsimmobilien grün und werthaltig.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  TADOtado.comHQ: Munich, GermanyReported employees: 51-200 | Munich, Germany | 51-200 | Exact match | 146 contacts → |
“At tado° we believe that unnecessarily wasting energy should be a thing of the past.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Otto Building Technologies Gmbhottoindustries.comHQ: Bad Berleburg, GermanyReported employees: 501-1,000 | Bad Berleburg, Germany | 501-1,000 | Exact match | 135 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 · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Apleona Wolfferts Gmbhwolfferts.apleona.comHQ: Cologne, GermanyReported employees: 1,001-5,000 | Cologne, Germany | 1,001-5,000 | Exact match | 115 contacts → |
“Wir verbinden Anlagentechnik und maßgeschneiderte Services, um die Energie unserer Kunden optimal einzusetzen - und das seit über 120 Jahren.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Enviriaenviria.energyHQ: Frankfurt, GermanyReported employees: 51-200 | Frankfurt, Germany | 51-200 | Exact match | 106 contacts → |
“Since 2017, ENVIRIA develops comprehensive, integrated energy solutions for commercial and industrial clients.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Greenflashgreenflash.deHQ: Essen, GermanyReported employees: 51-200 | Essen, Germany | 51-200 | Exact match | 88 contacts → |
“Wir als End-to-End Partner denken Energie ganzheitlich, wie kein anderer: Wir realisieren die Energieversorgung unserer Kunden als integriertes Gesamtsystem und übernehmen dabei…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Enloc AGenloc.deHQ: Dresden, GermanyReported employees: 51-200 | Dresden, Germany | 51-200 | Exact match | 79 contacts → |
“ENLOC – Energiedienstleister der Wohnungswirtschaft Die Enloc bietet innovative Lösungen unter Einbeziehung erneuerbarer Energien im Rahmen der Wärmelieferung/Contracting.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Fuchs & Eulefuchs-eule.de HQ: Metropolregion Berlin/brandenburg, GermanyReported employees: 51-200 | Metropolregion Berlin/brandenburg, Germany | 51-200 | Exact match | 78 contacts → |
“Wir wollen, dass so viele Immobilien wie möglich energieeffizient saniert werden.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Meteovivameteoviva.comHQ: 52064 Aachen, GermanyReported employees: 51-200 | 52064 Aachen, Germany | 51-200 | Exact match | 77 contacts → |
“With about 14 million hours of operation, meteoviva is the leading provider for AI-based solutions for optimised building operations worldwide - and ISO 27001 certified.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Deos AGdeos-ag.comHQ: Rheine, GermanyReported employees: 51-200 | Rheine, Germany | 51-200 | Exact match | 76 contacts → |
“As a technology leader in building automation, DEOS AG has been developing and producing innovative building automation and energy management systems “Made in Germany” with secure…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Oni-Wärmetrafo Gmbhoni.deHQ: Lindlar, GermanyReported employees: 201-500 | Lindlar, Germany | 201-500 | Exact match | 72 contacts → |
“Seit über vier Jahrzehnten setzen Kunden auf innovative Energiespartechnik aus dem Hause ONI.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  E-Conecon-ag.comHQ: Memmingen, GermanyReported employees: 51-200 | Memmingen, Germany | 51-200 | Exact match | 54 contacts → |
“e-con AG Die e-con AG ist seit 20 Jahren im Einsatz für erneuerbare Energien und versteht sich als Partner für die Energiewende.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Ökotec Energiemanagement Gmbhoekotec.deHQ: Berlin, GermanyReported employees: 51-200 | Berlin, Germany | 51-200 | Exact match | 49 contacts → |
“Since its founding 20 years ago, ÖKOTEC stands for intelligent solutions for the reduction of energy and resource consumption.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  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 · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Betterspace Gmbhbetterspace360.comHQ: Ilmenau, GermanyReported employees: 51-200 | Ilmenau, Germany | 51-200 | Exact match | 44 contacts → |
“Betterspace develops smart software solutions that make your day-to-day work easier.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Recogizerrecogizer.comHQ: Bonn, GermanyReported employees: 51-200 | Bonn, Germany | 51-200 | Exact match | 41 contacts → |
“Recogizer unterstützt Bestandshalter, Eigentümer und Dienstleister dabei, die Nachhaltigkeit von Gewerbeimmobilien messbar zu steigern.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Heimann Ingenieure Gmbhheimann.de HQ: Berlin, GermanyReported employees: 51-200 | Berlin, Germany | 51-200 | Exact match | 39 contacts → |
“Technical equipment - Integrated building planning - Energy systems” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Metr Building Management Systems Gmbhmetr.systemsHQ: Berlin, GermanyReported employees: 11-50 | Berlin, Germany | 11-50 | Exact match | 35 contacts → |
“metr aims to accelerate the reduction of global CO2 emissions and make buildings more energy-efficient and sustainable.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Berliner Energieagentur Gmbh BEAberliner-e-agentur.deHQ: Berlin, GermanyReported employees: 11-50 | Berlin, Germany | 11-50 | Exact match | 34 contacts → |
“Die Berliner Energieagentur GmbH (BEA) ist ein modernes Energiedienstleistungsunternehmen.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Hosch Gebäudeautomationhosch-ga.deHQ: Teltow, GermanyReported employees: 51-200 | Teltow, Germany | 51-200 | Exact match | 33 contacts → |
“HOSCH Gebäudeautomation wurde 2002 in Teltow gegründet und hat sich als fabrikatsunabhängiger Systemintegrator mit Niederlassungen in Nürnberg, Hamburg und Düsseldorf in…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Effizienzpioniereeffizienzpioniere.deHQ: Stuttgart, GermanyReported employees: 51-200 | Stuttgart, Germany | 51-200 | Exact match | 32 contacts → |
“Energy-efficient building renovations are complex.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Renewa Gmbhrenewa.deHQ: Hamburg, GermanyReported employees: 51-200 | Hamburg, Germany | 51-200 | Exact match | 30 contacts → |
“RENEWA ist dein unabhängiger Partner für energetische Sanierung.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 729 company matches
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Building energy efficiency companies: dataset insights
October 9, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
699 records in the displayed employee bands.
30 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 729 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 9, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Building energy efficiency companies by metro
Questions about this company list
What does Exact match mean for building energy efficiency companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many building energy efficiency companies did RevenueBase find based in Germany?
The saved snapshot records 729 matching company records, 6,807 tracked contacts and 2,600 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 9, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Building energy efficiency companies by geography
- Building energy efficiency companies based in Melbourne, Australia
- Building energy efficiency companies based in Rio De Janeiro, Brazil
- Building energy efficiency companies based in Sao Paulo, Brazil
- Building energy efficiency companies based in Toronto, Canada
- Building energy efficiency companies based in Lyon, France
- Building energy efficiency companies based in Paris, France
- Building energy efficiency companies based in Berlin, Germany
- Building energy efficiency companies based in Munich, Germany
- Building energy efficiency companies based in Budapest, Hungary
- Building energy efficiency companies based in Bangalore, India
- Building energy efficiency companies based in Mumbai, India
- Building energy efficiency companies based in Pune, India
Cite this list
RevenueBase Data Team. Top 25 building energy efficiency companies based in Germany. Snapshot: October 9, 2026. https://revenuebase.ai/companies/building-energy-efficiency-companies/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
- Building energy efficiency companies based in Melbourne, Australia
- Building energy efficiency companies based in Rio De Janeiro, Brazil
- Building energy efficiency companies based in Sao Paulo, Brazil
- Building energy efficiency companies based in Toronto, Canada
- Building energy efficiency companies based in Lyon, France
- Building energy efficiency companies based in Paris, France
Company intelligence · public preview
Top 25 building energy efficiency companies based in Germany
RevenueBase records 729 matching company records for building energy efficiency companies based in Germany, with 6,807 tracked contacts and 2,600 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 9, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 building energy efficiency companies 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 | ISTAista.ly HQ: Essen, GermanyReported employees: 5,001-10,000 | Essen, Germany | 5,001-10,000 | Exact match | 1,503 contacts → |
“Wir geben Häusern eine Zukunft.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Kieback&peterkieback-peter.com HQ: Berlin, GermanyReported employees: 1,001-5,000 | Berlin, Germany | 1,001-5,000 | Exact match | 560 contacts → |
“Our DNA are sustainable buildings As a Smart Building Solutioneer, we combine intelligent building technologies, data-based services, sustainable excellence and multiple synergy…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Kalorimeta Gmbhkalo.de HQ: Hamburg, GermanyReported employees: 501-1,000 | Hamburg, Germany | 501-1,000 | Exact match | 196 contacts → |
“Wir sind Ihr Partner für die smarte Energiewende in der Wohnimmobilie.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Paul Tech AGpaul.tech HQ: Mannheim, GermanyReported employees: 51-200 | Mannheim, Germany | 51-200 | Exact match | 148 contacts → |
“Die PAUL Tech AG mit Sitz in Mannheim macht Bestandsimmobilien grün und werthaltig.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | TADOtado.com HQ: Munich, GermanyReported employees: 51-200 | Munich, Germany | 51-200 | Exact match | 146 contacts → |
“At tado° we believe that unnecessarily wasting energy should be a thing of the past.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Otto Building Technologies Gmbhottoindustries.com HQ: Bad Berleburg, GermanyReported employees: 501-1,000 | Bad Berleburg, Germany | 501-1,000 | Exact match | 135 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 · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Apleona Wolfferts Gmbhwolfferts.apleona.com HQ: Cologne, GermanyReported employees: 1,001-5,000 | Cologne, Germany | 1,001-5,000 | Exact match | 115 contacts → |
“Wir verbinden Anlagentechnik und maßgeschneiderte Services, um die Energie unserer Kunden optimal einzusetzen - und das seit über 120 Jahren.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Enviriaenviria.energy HQ: Frankfurt, GermanyReported employees: 51-200 | Frankfurt, Germany | 51-200 | Exact match | 106 contacts → |
“Since 2017, ENVIRIA develops comprehensive, integrated energy solutions for commercial and industrial clients.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Greenflashgreenflash.de HQ: Essen, GermanyReported employees: 51-200 | Essen, Germany | 51-200 | Exact match | 88 contacts → |
“Wir als End-to-End Partner denken Energie ganzheitlich, wie kein anderer: Wir realisieren die Energieversorgung unserer Kunden als integriertes Gesamtsystem und übernehmen dabei…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Enloc AGenloc.de HQ: Dresden, GermanyReported employees: 51-200 | Dresden, Germany | 51-200 | Exact match | 79 contacts → |
“ENLOC – Energiedienstleister der Wohnungswirtschaft Die Enloc bietet innovative Lösungen unter Einbeziehung erneuerbarer Energien im Rahmen der Wärmelieferung/Contracting.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Fuchs & Eulefuchs-eule.de HQ: Metropolregion Berlin/brandenburg, GermanyReported employees: 51-200 | Metropolregion Berlin/brandenburg, Germany | 51-200 | Exact match | 78 contacts → |
“Wir wollen, dass so viele Immobilien wie möglich energieeffizient saniert werden.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Meteovivameteoviva.com HQ: 52064 Aachen, GermanyReported employees: 51-200 | 52064 Aachen, Germany | 51-200 | Exact match | 77 contacts → |
“With about 14 million hours of operation, meteoviva is the leading provider for AI-based solutions for optimised building operations worldwide - and ISO 27001 certified.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Deos AGdeos-ag.com HQ: Rheine, GermanyReported employees: 51-200 | Rheine, Germany | 51-200 | Exact match | 76 contacts → |
“As a technology leader in building automation, DEOS AG has been developing and producing innovative building automation and energy management systems “Made in Germany” with secure…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Oni-Wärmetrafo Gmbhoni.de HQ: Lindlar, GermanyReported employees: 201-500 | Lindlar, Germany | 201-500 | Exact match | 72 contacts → |
“Seit über vier Jahrzehnten setzen Kunden auf innovative Energiespartechnik aus dem Hause ONI.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | E-Conecon-ag.com HQ: Memmingen, GermanyReported employees: 51-200 | Memmingen, Germany | 51-200 | Exact match | 54 contacts → |
“e-con AG Die e-con AG ist seit 20 Jahren im Einsatz für erneuerbare Energien und versteht sich als Partner für die Energiewende.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Ökotec Energiemanagement Gmbhoekotec.de HQ: Berlin, GermanyReported employees: 51-200 | Berlin, Germany | 51-200 | Exact match | 49 contacts → |
“Since its founding 20 years ago, ÖKOTEC stands for intelligent solutions for the reduction of energy and resource consumption.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | 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 · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Betterspace Gmbhbetterspace360.com HQ: Ilmenau, GermanyReported employees: 51-200 | Ilmenau, Germany | 51-200 | Exact match | 44 contacts → |
“Betterspace develops smart software solutions that make your day-to-day work easier.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Recogizerrecogizer.com HQ: Bonn, GermanyReported employees: 51-200 | Bonn, Germany | 51-200 | Exact match | 41 contacts → |
“Recogizer unterstützt Bestandshalter, Eigentümer und Dienstleister dabei, die Nachhaltigkeit von Gewerbeimmobilien messbar zu steigern.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Heimann Ingenieure Gmbhheimann.de HQ: Berlin, GermanyReported employees: 51-200 | Berlin, Germany | 51-200 | Exact match | 39 contacts → |
“Technical equipment - Integrated building planning - Energy systems” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Metr Building Management Systems Gmbhmetr.systems HQ: Berlin, GermanyReported employees: 11-50 | Berlin, Germany | 11-50 | Exact match | 35 contacts → |
“metr aims to accelerate the reduction of global CO2 emissions and make buildings more energy-efficient and sustainable.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Berliner Energieagentur Gmbh BEAberliner-e-agentur.de HQ: Berlin, GermanyReported employees: 11-50 | Berlin, Germany | 11-50 | Exact match | 34 contacts → |
“Die Berliner Energieagentur GmbH (BEA) ist ein modernes Energiedienstleistungsunternehmen.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Hosch Gebäudeautomationhosch-ga.de HQ: Teltow, GermanyReported employees: 51-200 | Teltow, Germany | 51-200 | Exact match | 33 contacts → |
“HOSCH Gebäudeautomation wurde 2002 in Teltow gegründet und hat sich als fabrikatsunabhängiger Systemintegrator mit Niederlassungen in Nürnberg, Hamburg und Düsseldorf in…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Effizienzpioniereeffizienzpioniere.de HQ: Stuttgart, GermanyReported employees: 51-200 | Stuttgart, Germany | 51-200 | Exact match | 32 contacts → |
“Energy-efficient building renovations are complex.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Renewa Gmbhrenewa.de HQ: Hamburg, GermanyReported employees: 51-200 | Hamburg, Germany | 51-200 | Exact match | 30 contacts → |
“RENEWA ist dein unabhängiger Partner für energetische Sanierung.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Building energy efficiency companies: dataset insights
October 9, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
699 records in the displayed employee bands.
30 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 729 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 9, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Building energy efficiency companies by metro
Questions about this company list
What does Exact match mean for building energy efficiency companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many building energy efficiency companies did RevenueBase find based in Germany?
The saved snapshot records 729 matching company records, 6,807 tracked contacts and 2,600 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 9, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Building energy efficiency companies by geography
- Building energy efficiency companies based in Melbourne, Australia
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- Building energy efficiency companies based in Sao Paulo, Brazil
- Building energy efficiency companies based in Toronto, Canada
- Building energy efficiency companies based in Lyon, France
- Building energy efficiency companies based in Paris, France
- Building energy efficiency companies based in Berlin, Germany
- Building energy efficiency companies based in Munich, Germany
- Building energy efficiency companies based in Budapest, Hungary
- Building energy efficiency companies based in Bangalore, India
- Building energy efficiency companies based in Mumbai, India
- Building energy efficiency companies based in Pune, India
Cite this list
RevenueBase Data Team. Top 25 building energy efficiency companies based in Germany. Snapshot: October 9, 2026. https://revenuebase.ai/companies/building-energy-efficiency-companies/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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- Building energy efficiency companies based in Melbourne, Australia
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- Building energy efficiency companies based in Sao Paulo, Brazil
- Building energy efficiency companies based in Toronto, Canada
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- Building energy efficiency companies based in Paris, France