Company lists · Data refreshed October 2026
Top 25 Energy efficiency engineering firms based in Germany
RevenueBase identified 1,654 company matches for energy efficiency engineering firms associated with Germany as of October 2026 and tracks 14,529 professional contacts across them, including 3,867 with verified work emails. Berlin is the largest hub.
This list covers company matches for energy efficiency engineering firms 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 12, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest energy efficiency engineering firms based in Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 615 contacts → | ||||
Exact match “Excellence and innovation: that is the commitment of DMT GROUP as an independent, globally active engineering services and consulting company specialising in the markets of plant…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 2 | 177 contacts → | ||||
Exact match “We have a passion for innovative and sustainable concepts.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 3 | 169 contacts → | ||||
Exact match “Wir sind ein führender europäischer Energie- und Nachhaltigkeitsberater in der Immobilienwirtschaft.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 4 | 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 12, 2026 · View company records in RevenueBase | |||||
| 5 | 142 contacts → | ||||
Exact match “Since we at APROVIS have been developing solutions that make energy more efficient, sustainable and reliable.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 6 | 140 contacts → | ||||
Exact match “Wir erschaffen Zukunft – mit erneuerbaren Energien und innovativen Lösungen!” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 7 | 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 12, 2026 · View company records in RevenueBase | |||||
| 8 | 107 contacts → | ||||
Exact match “Wir sind Experten für Wasser, Umwelt, Ingenieurbau, Informatik, Energie und Architektur.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 9 | 86 contacts → | ||||
Exact match “Die BLS Energieplan GmbH wurde 1984 gegründet und hat ihr Portfolio an Ingenieurdienstleistungen seither kontinuierlich erweitert.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 10 | 78 contacts → | ||||
Exact match “enervis is a specialized management consultancy for the energy industry.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 11 | 78 contacts → | ||||
Exact match “Kompetenz in Engineering Engagierte Profis für alle Ingenieurdienstleistungen auf dem Gebiet der Technischen Ausrüstung in unseren Geschäftsbereichen Energie und Umwelt, Gebäude…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 12 | 72 contacts → | ||||
Exact match “Seit über vier Jahrzehnten setzen Kunden auf innovative Energiespartechnik aus dem Hause ONI.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 13 | 69 contacts → | ||||
Exact match “High Comfort – Low Impact Transsolar KlimaEngineering ist ein international tätiges Ingenieurbüro.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 14 | 60 contacts → | ||||
Exact match “Die Alpha IC ist ein inhabergeführtes Consultingbüro für das Real Estate Management.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 15 | 58 contacts → | ||||
Exact match “Limón ist Ihr Dienstleister und Lösungsanbieter für Energieeffizienz in der Industrie.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 16 | 58 contacts → | ||||
Exact match “Die Dienstleistungen der envistra GmbH zielen auf eine schnelle und langfristige Kostenreduktion und leisten einen wesentlichen Beitrag zu einer nachhaltigen…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 17 | 57 contacts → | ||||
Exact match “FACT.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 18 | 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 12, 2026 · View company records in RevenueBase | |||||
| 19 | 51 contacts → | ||||
Exact match “Das BFE Institut für Energie und Umwelt GmbH ist ein Unternehmen der MVV Energie AG und zählt mit über Projekten und ca.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 20 | 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 12, 2026 · View company records in RevenueBase | |||||
| 21 | 48 contacts → | ||||
Exact match “Die TEAM FÜR TECHNIK GmbH ist eine der innovativsten Ingenieurgesellschaften für Energie- und Versorgungstechnik.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 22 | 48 contacts → | ||||
Exact match “Wir entwickeln energieeffiziente Gebäude und klimaneutrale Quartiere für die Zukunft.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 23 | 48 contacts → | ||||
Exact match “Pagestreet helps companies across Europe unlock their full potential with deep expertise in R&D funding, energy efficiency and compliance.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 24 | 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 12, 2026 · View company records in RevenueBase | |||||
| 25 | 47 contacts → | ||||
Exact match “ö ü –, Als unabhängiges ü ü entwickeln wir innovative Lösungen für eine sichere und wirtschaftliche Energie- und Wasserversorgung.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “energy efficiency engineering firms”. 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 1,654 energy efficiency engineering firms based in Germany
See the full list, filter by size, metro and specialty, and access 3,867 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Energy efficiency engineering firms based in Germany at a glance
As of Oct 12, 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 1,654 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 efficiency engineering firms” 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 3,867 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on October 12, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Energy efficiency engineering firms 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 efficiency engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many energy efficiency engineering firms are there based in Germany?
RevenueBase identified 1,654 company matches for energy efficiency engineering firms 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?
DMT Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most energy efficiency engineering firms?
Berlin leads with 108 company records, followed by Munich (62) and Hamburg (57).
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 3,867 professional contacts with verified work emails tracked across these 1,654 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 12, 2026.
Ready to reach these companies? Verified emails and direct dials for all 1,654 energy efficiency engineering firms based in Germany. Start with a free account, no credit card.
Download this list →Related lists
Energy efficiency engineering firms by geography
- Energy efficiency engineering firms based in Buenos Aires, Argentina
- Energy efficiency engineering firms based in Melbourne, Australia
- Energy efficiency engineering firms based in Sydney, Australia
- Energy efficiency engineering firms based in Vienna, Austria
- Energy efficiency engineering firms based in Belo Horizonte, Brazil
- Energy efficiency engineering firms based in Curitiba, Brazil
- Energy efficiency engineering firms based in Rio De Janeiro, Brazil
- Energy efficiency engineering firms based in Sao Paulo, Brazil
- Energy efficiency engineering firms based in Calgary, Canada
- Energy efficiency engineering firms based in Edmonton, Canada
- Energy efficiency engineering firms based in Montreal, Canada
- Energy efficiency engineering firms based in Toronto, Canada
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 efficiency engineering firms based in Buenos Aires, Argentina
- Energy efficiency engineering firms based in Melbourne, Australia
- Energy efficiency engineering firms based in Sydney, Australia
- Energy efficiency engineering firms based in Vienna, Austria
- Energy efficiency engineering firms based in Belo Horizonte, Brazil
- Energy efficiency engineering firms based in Curitiba, Brazil
Company intelligence · public preview
Top 25 energy efficiency engineering firms 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 1,654 matching company records for energy efficiency engineering firms based in Germany, with 14,529 tracked contacts and 3,867 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 12, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 energy efficiency engineering firms 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 |  DMT Groupdmt-group.comHQ: Essen, GermanyReported employees: 1,001-5,000 | Essen, Germany | 1,001-5,000 | Exact match | 615 contacts → |
“Excellence and innovation: that is the commitment of DMT GROUP as an independent, globally active engineering services and consulting company specialising in the markets of plant…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  ZWP Ingenieur-Agzwp.deHQ: Cologne, GermanyReported employees: 201-500 | Cologne, Germany | 201-500 | Exact match | 177 contacts → |
“We have a passion for innovative and sustainable concepts.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Westbridge Advisorywestbridge-advisory.comHQ: Frankfurt, GermanyReported employees: 51-200 | Frankfurt, Germany | 51-200 | Exact match | 169 contacts → |
“Wir sind ein führender europäischer Energie- und Nachhaltigkeitsberater in der Immobilienwirtschaft.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Aprovis Energy Systems Gmbhaprovis.comHQ: Weidenbach, GermanyReported employees: 201-500 | Weidenbach, Germany | 201-500 | Exact match | 142 contacts → |
“Since we at APROVIS have been developing solutions that make energy more efficient, sustainable and reliable.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Energielenker Gruppeenergielenker.deHQ: Münster, GermanyReported employees: 201-500 | Münster, Germany | 201-500 | Exact match | 140 contacts → |
“Wir erschaffen Zukunft – mit erneuerbaren Energien und innovativen Lösungen!” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Björnsen Beratende Ingenieurebjoernsen.deHQ: Koblenz, GermanyReported employees: 201-500 | Koblenz, Germany | 201-500 | Exact match | 107 contacts → |
“Wir sind Experten für Wasser, Umwelt, Ingenieurbau, Informatik, Energie und Architektur.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  BLS Energieplan Gmbhbls-energieplan.deHQ: Berlin, GermanyReported employees: 51-200 | Berlin, Germany | 51-200 | Exact match | 86 contacts → |
“Die BLS Energieplan GmbH wurde 1984 gegründet und hat ihr Portfolio an Ingenieurdienstleistungen seither kontinuierlich erweitert.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Enervis Energy Advisors Gmbhenervis.deHQ: Berlin, GermanyReported employees: 51-200 | Berlin, Germany | 51-200 | Exact match | 78 contacts → |
“enervis is a specialized management consultancy for the energy industry.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | HQ: Munich, GermanyReported employees: 51-200 | Munich, Germany | 51-200 | Exact match | 78 contacts → |
“Kompetenz in Engineering Engagierte Profis für alle Ingenieurdienstleistungen auf dem Gebiet der Technischen Ausrüstung in unseren Geschäftsbereichen Energie und Umwelt, Gebäude…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Transsolar Klimaengineeringtranssolar.comHQ: Stuttgart, GermanyReported employees: 51-200 | Stuttgart, Germany | 51-200 | Exact match | 69 contacts → |
“High Comfort – Low Impact Transsolar KlimaEngineering ist ein international tätiges Ingenieurbüro.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Alpha IC Gmbhalpha-ic.comHQ: Bamberg, GermanyReported employees: 51-200 | Bamberg, Germany | 51-200 | Exact match | 60 contacts → |
“Die Alpha IC ist ein inhabergeführtes Consultingbüro für das Real Estate Management.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Limón Gmbhlimon-gmbh.deHQ: Kassel, GermanyReported employees: 51-200 | Kassel, Germany | 51-200 | Exact match | 58 contacts → |
“Limón ist Ihr Dienstleister und Lösungsanbieter für Energieeffizienz in der Industrie.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Envistra Gmbhenvistra.deHQ: Hürth, GermanyReported employees: 51-200 | Hürth, Germany | 51-200 | Exact match | 58 contacts → |
“Die Dienstleistungen der envistra GmbH zielen auf eine schnelle und langfristige Kostenreduktion und leisten einen wesentlichen Beitrag zu einer nachhaltigen…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Fact Gmbh Efacilities Solutionsfact-gmbh.comHQ: Boblingen, GermanyReported employees: 51-200 | Boblingen, Germany | 51-200 | Exact match | 57 contacts → |
“FACT.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  BFE Institut FÜR Energie UND Umwelt Gmbhbfe-institut.comHQ: Mannheim, GermanyReported employees: 51-200 | Mannheim, Germany | 51-200 | Exact match | 51 contacts → |
“Das BFE Institut für Energie und Umwelt GmbH ist ein Unternehmen der MVV Energie AG und zählt mit über Projekten und ca.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Team FÜR Technik Gmbhtftgmbh.deHQ: Munich, GermanyReported employees: 51-200 | Munich, Germany | 51-200 | Exact match | 48 contacts → |
“Die TEAM FÜR TECHNIK GmbH ist eine der innovativsten Ingenieurgesellschaften für Energie- und Versorgungstechnik.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Egs-Plan Gmbhegs-plan.deHQ: Stuttgart, GermanyReported employees: 51-200 | Stuttgart, Germany | 51-200 | Exact match | 48 contacts → |
“Wir entwickeln energieeffiziente Gebäude und klimaneutrale Quartiere für die Zukunft.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Pagestreetpagestreet.deHQ: Berlin, GermanyReported employees: 51-200 | Berlin, Germany | 51-200 | Exact match | 48 contacts → |
“Pagestreet helps companies across Europe unlock their full potential with deep expertise in R&D funding, energy efficiency and compliance.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  John Becker Ingenieure Gmbh & Co. KGwirberaten.deHQ: Lilienthal, GermanyReported employees: 51-200 | Lilienthal, Germany | 51-200 | Exact match | 47 contacts → |
“ö ü –, Als unabhängiges ü ü entwickeln wir innovative Lösungen für eine sichere und wirtschaftliche Energie- und Wasserversorgung.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,654 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Energy efficiency engineering firms: dataset insights
October 12, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,602 records in the displayed employee bands.
52 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 1,654 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 12, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Energy efficiency engineering firms by metro
Questions about this company list
What does Exact match mean for energy efficiency engineering firms?
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 efficiency engineering firms did RevenueBase find based in Germany?
The saved snapshot records 1,654 matching company records, 14,529 tracked contacts and 3,867 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 12, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Energy efficiency engineering firms by geography
- Energy efficiency engineering firms based in Buenos Aires, Argentina
- Energy efficiency engineering firms based in Melbourne, Australia
- Energy efficiency engineering firms based in Sydney, Australia
- Energy efficiency engineering firms based in Vienna, Austria
- Energy efficiency engineering firms based in Belo Horizonte, Brazil
- Energy efficiency engineering firms based in Curitiba, Brazil
- Energy efficiency engineering firms based in Rio De Janeiro, Brazil
- Energy efficiency engineering firms based in Sao Paulo, Brazil
- Energy efficiency engineering firms based in Calgary, Canada
- Energy efficiency engineering firms based in Edmonton, Canada
- Energy efficiency engineering firms based in Montreal, Canada
- Energy efficiency engineering firms based in Toronto, Canada
Cite this list
RevenueBase Data Team. Top 25 energy efficiency engineering firms based in Germany. Snapshot: October 12, 2026. https://revenuebase.ai/companies/energy-efficiency-engineering-firms/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 efficiency engineering firms based in Buenos Aires, Argentina
- Energy efficiency engineering firms based in Melbourne, Australia
- Energy efficiency engineering firms based in Sydney, Australia
- Energy efficiency engineering firms based in Vienna, Austria
- Energy efficiency engineering firms based in Belo Horizonte, Brazil
- Energy efficiency engineering firms based in Curitiba, Brazil
Company intelligence · public preview
Top 25 energy efficiency engineering firms based in Germany
RevenueBase records 1,654 matching company records for energy efficiency engineering firms based in Germany, with 14,529 tracked contacts and 3,867 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 12, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 energy efficiency engineering firms 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 | DMT Groupdmt-group.com HQ: Essen, GermanyReported employees: 1,001-5,000 | Essen, Germany | 1,001-5,000 | Exact match | 615 contacts → |
“Excellence and innovation: that is the commitment of DMT GROUP as an independent, globally active engineering services and consulting company specialising in the markets of plant…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | ZWP Ingenieur-Agzwp.de HQ: Cologne, GermanyReported employees: 201-500 | Cologne, Germany | 201-500 | Exact match | 177 contacts → |
“We have a passion for innovative and sustainable concepts.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Westbridge Advisorywestbridge-advisory.com HQ: Frankfurt, GermanyReported employees: 51-200 | Frankfurt, Germany | 51-200 | Exact match | 169 contacts → |
“Wir sind ein führender europäischer Energie- und Nachhaltigkeitsberater in der Immobilienwirtschaft.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | 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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Aprovis Energy Systems Gmbhaprovis.com HQ: Weidenbach, GermanyReported employees: 201-500 | Weidenbach, Germany | 201-500 | Exact match | 142 contacts → |
“Since we at APROVIS have been developing solutions that make energy more efficient, sustainable and reliable.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Energielenker Gruppeenergielenker.de HQ: Münster, GermanyReported employees: 201-500 | Münster, Germany | 201-500 | Exact match | 140 contacts → |
“Wir erschaffen Zukunft – mit erneuerbaren Energien und innovativen Lösungen!” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | 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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Björnsen Beratende Ingenieurebjoernsen.de HQ: Koblenz, GermanyReported employees: 201-500 | Koblenz, Germany | 201-500 | Exact match | 107 contacts → |
“Wir sind Experten für Wasser, Umwelt, Ingenieurbau, Informatik, Energie und Architektur.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | BLS Energieplan Gmbhbls-energieplan.de HQ: Berlin, GermanyReported employees: 51-200 | Berlin, Germany | 51-200 | Exact match | 86 contacts → |
“Die BLS Energieplan GmbH wurde 1984 gegründet und hat ihr Portfolio an Ingenieurdienstleistungen seither kontinuierlich erweitert.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Enervis Energy Advisors Gmbhenervis.de HQ: Berlin, GermanyReported employees: 51-200 | Berlin, Germany | 51-200 | Exact match | 78 contacts → |
“enervis is a specialized management consultancy for the energy industry.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | HQ: Munich, GermanyReported employees: 51-200 | Munich, Germany | 51-200 | Exact match | 78 contacts → |
“Kompetenz in Engineering Engagierte Profis für alle Ingenieurdienstleistungen auf dem Gebiet der Technischen Ausrüstung in unseren Geschäftsbereichen Energie und Umwelt, Gebäude…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | 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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Transsolar Klimaengineeringtranssolar.com HQ: Stuttgart, GermanyReported employees: 51-200 | Stuttgart, Germany | 51-200 | Exact match | 69 contacts → |
“High Comfort – Low Impact Transsolar KlimaEngineering ist ein international tätiges Ingenieurbüro.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Alpha IC Gmbhalpha-ic.com HQ: Bamberg, GermanyReported employees: 51-200 | Bamberg, Germany | 51-200 | Exact match | 60 contacts → |
“Die Alpha IC ist ein inhabergeführtes Consultingbüro für das Real Estate Management.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Limón Gmbhlimon-gmbh.de HQ: Kassel, GermanyReported employees: 51-200 | Kassel, Germany | 51-200 | Exact match | 58 contacts → |
“Limón ist Ihr Dienstleister und Lösungsanbieter für Energieeffizienz in der Industrie.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Envistra Gmbhenvistra.de HQ: Hürth, GermanyReported employees: 51-200 | Hürth, Germany | 51-200 | Exact match | 58 contacts → |
“Die Dienstleistungen der envistra GmbH zielen auf eine schnelle und langfristige Kostenreduktion und leisten einen wesentlichen Beitrag zu einer nachhaltigen…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Fact Gmbh Efacilities Solutionsfact-gmbh.com HQ: Boblingen, GermanyReported employees: 51-200 | Boblingen, Germany | 51-200 | Exact match | 57 contacts → |
“FACT.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | 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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | BFE Institut FÜR Energie UND Umwelt Gmbhbfe-institut.com HQ: Mannheim, GermanyReported employees: 51-200 | Mannheim, Germany | 51-200 | Exact match | 51 contacts → |
“Das BFE Institut für Energie und Umwelt GmbH ist ein Unternehmen der MVV Energie AG und zählt mit über Projekten und ca.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | 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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Team FÜR Technik Gmbhtftgmbh.de HQ: Munich, GermanyReported employees: 51-200 | Munich, Germany | 51-200 | Exact match | 48 contacts → |
“Die TEAM FÜR TECHNIK GmbH ist eine der innovativsten Ingenieurgesellschaften für Energie- und Versorgungstechnik.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Egs-Plan Gmbhegs-plan.de HQ: Stuttgart, GermanyReported employees: 51-200 | Stuttgart, Germany | 51-200 | Exact match | 48 contacts → |
“Wir entwickeln energieeffiziente Gebäude und klimaneutrale Quartiere für die Zukunft.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Pagestreetpagestreet.de HQ: Berlin, GermanyReported employees: 51-200 | Berlin, Germany | 51-200 | Exact match | 48 contacts → |
“Pagestreet helps companies across Europe unlock their full potential with deep expertise in R&D funding, energy efficiency and compliance.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | 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 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | John Becker Ingenieure Gmbh & Co. KGwirberaten.de HQ: Lilienthal, GermanyReported employees: 51-200 | Lilienthal, Germany | 51-200 | Exact match | 47 contacts → |
“ö ü –, Als unabhängiges ü ü entwickeln wir innovative Lösungen für eine sichere und wirtschaftliche Energie- und Wasserversorgung.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,654 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Energy efficiency engineering firms: dataset insights
October 12, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,602 records in the displayed employee bands.
52 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 1,654 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 12, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Energy efficiency engineering firms by metro
Questions about this company list
What does Exact match mean for energy efficiency engineering firms?
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 efficiency engineering firms did RevenueBase find based in Germany?
The saved snapshot records 1,654 matching company records, 14,529 tracked contacts and 3,867 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 12, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Energy efficiency engineering firms by geography
- Energy efficiency engineering firms based in Buenos Aires, Argentina
- Energy efficiency engineering firms based in Melbourne, Australia
- Energy efficiency engineering firms based in Sydney, Australia
- Energy efficiency engineering firms based in Vienna, Austria
- Energy efficiency engineering firms based in Belo Horizonte, Brazil
- Energy efficiency engineering firms based in Curitiba, Brazil
- Energy efficiency engineering firms based in Rio De Janeiro, Brazil
- Energy efficiency engineering firms based in Sao Paulo, Brazil
- Energy efficiency engineering firms based in Calgary, Canada
- Energy efficiency engineering firms based in Edmonton, Canada
- Energy efficiency engineering firms based in Montreal, Canada
- Energy efficiency engineering firms based in Toronto, Canada
Cite this list
RevenueBase Data Team. Top 25 energy efficiency engineering firms based in Germany. Snapshot: October 12, 2026. https://revenuebase.ai/companies/energy-efficiency-engineering-firms/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 efficiency engineering firms based in Buenos Aires, Argentina
- Energy efficiency engineering firms based in Melbourne, Australia
- Energy efficiency engineering firms based in Sydney, Australia
- Energy efficiency engineering firms based in Vienna, Austria
- Energy efficiency engineering firms based in Belo Horizonte, Brazil
- Energy efficiency engineering firms based in Curitiba, Brazil