Company lists · Data refreshed September 2026
Top 25 Geothermal companies based in Germany
RevenueBase identified 284 company matches for geothermal companies associated with Germany as of September 2026 and tracks 3,232 professional contacts across them, including 1,029 with verified work emails. Berlin is the largest hub.
This list covers company matches for geothermal 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 September 15, 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 geothermal companies based in Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 785 contacts → | ||||
Exact match “For 30 years, we have been one of the leading specialists in renewable energies, offering complete project development and other services related to the planning, construction…” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 2 | 162 contacts → | ||||
Exact match “Mit Premium-Photovoltaikanlagen und Wärmepumpen im Komplettpaket erleichtern wir seit 2010 Privat- und Gewerbekunden bundesweit den Umstieg auf eine unabhängige, nachhaltige…” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 3 | 149 contacts → | ||||
Exact match “Vulcan Energy strebt an, die weltweit erste klimaneutrale, integrierte Produktion von Lithium und Erneuerbarer Energie aufzubauen, um die CO2-Emissionen in der Batterieproduktion…” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 4 | 146 contacts → | ||||
Exact match “We are energy experts and are committed to Europe's energy transition.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 5 | 107 contacts → | ||||
Exact match “Die Zukunft wird aus Wind und Sonne gemacht.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 6 | 103 contacts → | ||||
Exact match “Energieversorgung Offenbach AG is an utilities company based out of Andréstr.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 7 | 99 contacts → | ||||
Exact match “About the company H2APEX Group SCA: H2APEX Group SCA is a listed holding company and the parent company of H2APEX Group, which in its core business develops, builds and sells or…” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 8 | 90 contacts → | ||||
Exact match “DEA Deutsche Erdoel AG headquartered in Hamburg, Germany, is an internationally operating exploration and production (E&P) company for natural gas and crude oil.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 9 | 72 contacts → | ||||
Exact match “TAPROGGE is a global cleantech specialist.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 10 | 67 contacts → | ||||
Exact match “Die Danpower-Gruppe ist ein mittelständisch strukturiertes Wärmeversorgungs- und Contractingunternehmen.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 11 | 56 contacts → | ||||
Exact match “Die envia THERM GmbH, Bitterfeld-Wolfen, ist eine 100-prozentige Tochter der envia Mitteldeutsche Energie AG.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 12 | 50 contacts → | ||||
Exact match “BauGrund Süd Gesellschaft für Geothermie mbH is an utilities company based out of MAYBACHSTRASSE 5, Bad Wurzach, Germany.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 13 | 37 contacts → | ||||
Exact match “heimWatt hat Ende Januar 2025 u.a.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 14 | 32 contacts → | ||||
Exact match “Die WATERKOTTE GmbH ist mit über 50 Jahren Erfahrung als Hersteller nachhaltiger Energiesysteme auf Basis der Wärmepumpe ein Pionier der Branche.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 15 | 31 contacts → | ||||
Exact match “Die DrillTec GUT GmbH Großbohr- und Umwelttechnik gehört zu den europaweit agierenden Bohrkontraktoren für namhafte Unternehmen der Öl, Gas- und Geothermie-Branche.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 16 | 28 contacts → | ||||
Exact match “Die Daldrup & Söhne AG ist Spezialist für Bohrtechnik und die Erschließung geologischer Ressourcen in Deutschland mit Sitz in Ascheberg, Nordrhein-Westfalen.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 17 | 24 contacts → | ||||
Exact match “Die GERMAN WATER and ENERGY GROUP (GWE) ist Hersteller richtungsweisender Produkte und Entwickler integrierter Anwendungen für den Brunnenbau und die Geothermie.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 18 | 23 contacts → | ||||
Exact match “IEP Innovative Energie für Pullach GmbH is a geothermal and district heating operator based in Pullach im Isartal, Germany.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 19 | 23 contacts → | ||||
Exact match “H.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 20 | 21 contacts → | ||||
Exact match “Deutsche ErdWärme entwickelt, baut, finanziert und betreibt Erdwärmeanlagen zur Dekarbonisierung von Wärmenetzen.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 21 | 21 contacts → | ||||
Exact match “ANTARES provides international experience in a wide spectrum of geophysical techniques, ranging from borehole geophysics, borehole seismic, cavern logging, environmental, and…” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 22 | 21 contacts → | ||||
Exact match “Geothermie Neubrandenburg GmbH (GTN) is an internationally active consultancy and planning office of engineers and geoscientsits.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 23 | 21 contacts → | ||||
Exact match “Our commitment: Heat transfer in perfection!” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 24 | 21 contacts → | ||||
Exact match “ERDWERK GmbH is an independent planning office offering consulting services in the fields of geothermal energy, geology, hydrogeology, energetics and drilling technology.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 25 | 20 contacts → | ||||
Exact match “terratec Geophysical Services offers surface geophysical and borehole logging services worldwide.” Recorded in the RevenueBase company graph · Sep 15, 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 “geothermal 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 284 geothermal companies based in Germany
See the full list, filter by size, metro and specialty, and access 1,029 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Geothermal companies based in Germany at a glance
As of Sep 15, 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 284 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 “geothermal companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 1,029 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 15, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “geothermal companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many geothermal companies are there based in Germany?
RevenueBase identified 284 company matches for geothermal companies associated with Germany as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Juwi Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most geothermal companies?
Berlin leads with 18 company records, followed by Munich (14) and Hamburg (5).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,029 professional contacts with verified work emails tracked across these 284 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 15, 2026.
Ready to reach these companies? Verified emails and direct dials for all 284 geothermal companies based in Germany. Start with a free account, no credit card.
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Geothermal companies by geography
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- Geothermal companies based in Brazil
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- Geothermal companies based in Colombia
- Geothermal companies based in Czechia
- Geothermal companies based in Denmark
- Geothermal companies based in Finland
- Geothermal companies based in France
Browse the directory
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
Company intelligence · public preview
Top 25 geothermal 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 284 matching company records for geothermal companies based in Germany, with 3,232 tracked contacts and 1,029 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 15, 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 geothermal 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 |  Juwi Groupjuwi.comHQ: Wörrstadt, GermanyReported employees: 1,001-5,000 | Wörrstadt, Germany | 1,001-5,000 | Exact match | 785 contacts → |
“For 30 years, we have been one of the leading specialists in renewable energies, offering complete project development and other services related to the planning, construction…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Energieversum EIN Unternehmen DER Enbw Gruppeenergieversum.deHQ: Steinhagen, GermanyReported employees: 201-500 | Steinhagen, Germany | 201-500 | Exact match | 162 contacts → |
“Mit Premium-Photovoltaikanlagen und Wärmepumpen im Komplettpaket erleichtern wir seit 2010 Privat- und Gewerbekunden bundesweit den Umstieg auf eine unabhängige, nachhaltige…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Vulcan Energy Germanyv-er.euHQ: Karlsruhe, GermanyReported employees: 201-500 | Karlsruhe, Germany | 201-500 | Exact match | 149 contacts → |
“Vulcan Energy strebt an, die weltweit erste klimaneutrale, integrierte Produktion von Lithium und Erneuerbarer Energie aufzubauen, um die CO2-Emissionen in der Batterieproduktion…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Onyx Poweronyx-power.comHQ: Berlin, GermanyReported employees: 201-500 | Berlin, Germany | 201-500 | Exact match | 146 contacts → |
“We are energy experts and are committed to Europe's energy transition.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Notus Energy Unternehmensgruppenotus.deHQ: Potsdam, GermanyReported employees: 201-500 | Potsdam, Germany | 201-500 | Exact match | 107 contacts → |
“Die Zukunft wird aus Wind und Sonne gemacht.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Energieversorgung Offenbach AGevo-ag.de HQ: Offenbach, GermanyReported employees: 501-1,000 | Offenbach, Germany | 501-1,000 | Exact match | 103 contacts → |
“Energieversorgung Offenbach AG is an utilities company based out of Andréstr.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  H2apexh2apex.comHQ: Rostock-laage, GermanyReported employees: 51-200 | Rostock-laage, Germany | 51-200 | Exact match | 99 contacts → |
“About the company H2APEX Group SCA: H2APEX Group SCA is a listed holding company and the parent company of H2APEX Group, which in its core business develops, builds and sells or…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | DEA Deutsche Erdoel AGdea-group.com HQ: Hamburg, GermanyReported employees: 1,001-5,000 | Hamburg, Germany | 1,001-5,000 | Exact match | 90 contacts → |
“DEA Deutsche Erdoel AG headquartered in Hamburg, Germany, is an internationally operating exploration and production (E&P) company for natural gas and crude oil.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Taprogge Gesellschaft MBHtaprogge.deHQ: Wetter, GermanyReported employees: 201-500 | Wetter, Germany | 201-500 | Exact match | 72 contacts → |
“TAPROGGE is a global cleantech specialist.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Danpower-Gruppedanpower.de HQ: Potsdam, GermanyReported employees: 201-500 | Potsdam, Germany | 201-500 | Exact match | 67 contacts → |
“Die Danpower-Gruppe ist ein mittelständisch strukturiertes Wärmeversorgungs- und Contractingunternehmen.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Envia Therm Gmbhenvia-therm.deHQ: Bitterfeld, GermanyReported employees: 51-200 | Bitterfeld, Germany | 51-200 | Exact match | 56 contacts → |
“Die envia THERM GmbH, Bitterfeld-Wolfen, ist eine 100-prozentige Tochter der envia Mitteldeutsche Energie AG.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Baugrund SÜD Gesellschaft FÜR Geothermie MBHbaugrundsued.deHQ: Bad Wurzach, GermanyReported employees: 51-200 | Bad Wurzach, Germany | 51-200 | Exact match | 50 contacts → |
“BauGrund Süd Gesellschaft für Geothermie mbH is an utilities company based out of MAYBACHSTRASSE 5, Bad Wurzach, Germany.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Wegatechheim-watt.deHQ: Cologne, GermanyReported employees: 51-200 | Cologne, Germany | 51-200 | Exact match | 37 contacts → |
“heimWatt hat Ende Januar 2025 u.a.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Waterkotte Gmbhwaterkotte.de HQ: Herne, GermanyReported employees: 51-200 | Herne, Germany | 51-200 | Exact match | 32 contacts → |
“Die WATERKOTTE GmbH ist mit über 50 Jahren Erfahrung als Hersteller nachhaltiger Energiesysteme auf Basis der Wärmepumpe ein Pionier der Branche.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | HQ: Deggendorf, GermanyReported employees: 51-200 | Deggendorf, Germany | 51-200 | Exact match | 31 contacts → |
“Die DrillTec GUT GmbH Großbohr- und Umwelttechnik gehört zu den europaweit agierenden Bohrkontraktoren für namhafte Unternehmen der Öl, Gas- und Geothermie-Branche.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Daldrup & Söhne AGdaldrup.eu HQ: Ascheberg, GermanyReported employees: 51-200 | Ascheberg, Germany | 51-200 | Exact match | 28 contacts → |
“Die Daldrup & Söhne AG ist Spezialist für Bohrtechnik und die Erschließung geologischer Ressourcen in Deutschland mit Sitz in Ascheberg, Nordrhein-Westfalen.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  GWE Groupgwe-gruppe.deHQ: Peine, GermanyReported employees: 201-500 | Peine, Germany | 201-500 | Exact match | 24 contacts → |
“Die GERMAN WATER and ENERGY GROUP (GWE) ist Hersteller richtungsweisender Produkte und Entwickler integrierter Anwendungen für den Brunnenbau und die Geothermie.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | IEP Innovative Energie FÜR Pullach Gmbhiep-pullach.de HQ: Pullach Im Isartal, GermanyReported employees: 11-50 | Pullach Im Isartal, Germany | 11-50 | Exact match | 23 contacts → |
“IEP Innovative Energie für Pullach GmbH is a geothermal and district heating operator based in Pullach im Isartal, Germany.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  H. Anger's Söhne Bohr- UND Brunnenbaugesellschaft MBHangers-soehne.comHQ: Hessisch Lichtenau, GermanyReported employees: 51-200 | Hessisch Lichtenau, Germany | 51-200 | Exact match | 23 contacts → |
“H.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Deutsche Erdwärmedeutsche-erdwaerme.de HQ: Karlsruhe, GermanyReported employees: 11-50 | Karlsruhe, Germany | 11-50 | Exact match | 21 contacts → |
“Deutsche ErdWärme entwickelt, baut, finanziert und betreibt Erdwärmeanlagen zur Dekarbonisierung von Wärmenetzen.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Antares Datensysteme Gmbhantares-geo.deHQ: Stuhr, GermanyReported employees: 51-200 | Stuhr, Germany | 51-200 | Exact match | 21 contacts → |
“ANTARES provides international experience in a wide spectrum of geophysical techniques, ranging from borehole geophysics, borehole seismic, cavern logging, environmental, and…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Geothermie Neubrandenburg Gmbhgtn-online.de HQ: Neubrandenburg, GermanyReported employees: 11-50 | Neubrandenburg, Germany | 11-50 | Exact match | 21 contacts → |
“Geothermie Neubrandenburg GmbH (GTN) is an internationally active consultancy and planning office of engineers and geoscientsits.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Heat 11 Gmbh & Co. KGheat11.comHQ: Bielefeld, GermanyReported employees: 51-200 | Bielefeld, Germany | 51-200 | Exact match | 21 contacts → |
“Our commitment: Heat transfer in perfection!” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Erdwerk Gmbherdwerk.comHQ: Munich, GermanyReported employees: 11-50 | Munich, Germany | 11-50 | Exact match | 21 contacts → |
“ERDWERK GmbH is an independent planning office offering consulting services in the fields of geothermal energy, geology, hydrogeology, energetics and drilling technology.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Terratec Geophysical Services Gmbh & Co.Kgterratec-geoservices.comHQ: Heitersheim, GermanyReported employees: 11-50 | Heitersheim, Germany | 11-50 | Exact match | 20 contacts → |
“terratec Geophysical Services offers surface geophysical and borehole logging services worldwide.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 284 company matches
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Geothermal companies: dataset insights
September 15, 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
271 records in the displayed employee bands.
13 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 284 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 15, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for geothermal 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 geothermal companies did RevenueBase find based in Germany?
The saved snapshot records 284 matching company records, 3,232 tracked contacts and 1,029 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 15, 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
Geothermal companies by geography
- Geothermal companies based in Argentina
- Geothermal companies based in Australia
- Geothermal companies based in Austria
- Geothermal companies based in Belgium
- Geothermal companies based in Brazil
- Geothermal companies based in Canada
- Geothermal companies based in Chile
- Geothermal companies based in Colombia
- Geothermal companies based in Czechia
- Geothermal companies based in Denmark
- Geothermal companies based in Finland
- Geothermal companies based in France
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 geothermal companies based in Germany. Snapshot: September 15, 2026. https://revenuebase.ai/companies/geothermal-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
Company intelligence · public preview
Top 25 geothermal companies based in Germany
RevenueBase records 284 matching company records for geothermal companies based in Germany, with 3,232 tracked contacts and 1,029 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 15, 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 geothermal 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 | Juwi Groupjuwi.com HQ: Wörrstadt, GermanyReported employees: 1,001-5,000 | Wörrstadt, Germany | 1,001-5,000 | Exact match | 785 contacts → |
“For 30 years, we have been one of the leading specialists in renewable energies, offering complete project development and other services related to the planning, construction…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Energieversum EIN Unternehmen DER Enbw Gruppeenergieversum.de HQ: Steinhagen, GermanyReported employees: 201-500 | Steinhagen, Germany | 201-500 | Exact match | 162 contacts → |
“Mit Premium-Photovoltaikanlagen und Wärmepumpen im Komplettpaket erleichtern wir seit 2010 Privat- und Gewerbekunden bundesweit den Umstieg auf eine unabhängige, nachhaltige…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Vulcan Energy Germanyv-er.eu HQ: Karlsruhe, GermanyReported employees: 201-500 | Karlsruhe, Germany | 201-500 | Exact match | 149 contacts → |
“Vulcan Energy strebt an, die weltweit erste klimaneutrale, integrierte Produktion von Lithium und Erneuerbarer Energie aufzubauen, um die CO2-Emissionen in der Batterieproduktion…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Onyx Poweronyx-power.com HQ: Berlin, GermanyReported employees: 201-500 | Berlin, Germany | 201-500 | Exact match | 146 contacts → |
“We are energy experts and are committed to Europe's energy transition.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Notus Energy Unternehmensgruppenotus.de HQ: Potsdam, GermanyReported employees: 201-500 | Potsdam, Germany | 201-500 | Exact match | 107 contacts → |
“Die Zukunft wird aus Wind und Sonne gemacht.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Energieversorgung Offenbach AGevo-ag.de HQ: Offenbach, GermanyReported employees: 501-1,000 | Offenbach, Germany | 501-1,000 | Exact match | 103 contacts → |
“Energieversorgung Offenbach AG is an utilities company based out of Andréstr.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | H2apexh2apex.com HQ: Rostock-laage, GermanyReported employees: 51-200 | Rostock-laage, Germany | 51-200 | Exact match | 99 contacts → |
“About the company H2APEX Group SCA: H2APEX Group SCA is a listed holding company and the parent company of H2APEX Group, which in its core business develops, builds and sells or…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | DEA Deutsche Erdoel AGdea-group.com HQ: Hamburg, GermanyReported employees: 1,001-5,000 | Hamburg, Germany | 1,001-5,000 | Exact match | 90 contacts → |
“DEA Deutsche Erdoel AG headquartered in Hamburg, Germany, is an internationally operating exploration and production (E&P) company for natural gas and crude oil.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Taprogge Gesellschaft MBHtaprogge.de HQ: Wetter, GermanyReported employees: 201-500 | Wetter, Germany | 201-500 | Exact match | 72 contacts → |
“TAPROGGE is a global cleantech specialist.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Danpower-Gruppedanpower.de HQ: Potsdam, GermanyReported employees: 201-500 | Potsdam, Germany | 201-500 | Exact match | 67 contacts → |
“Die Danpower-Gruppe ist ein mittelständisch strukturiertes Wärmeversorgungs- und Contractingunternehmen.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Envia Therm Gmbhenvia-therm.de HQ: Bitterfeld, GermanyReported employees: 51-200 | Bitterfeld, Germany | 51-200 | Exact match | 56 contacts → |
“Die envia THERM GmbH, Bitterfeld-Wolfen, ist eine 100-prozentige Tochter der envia Mitteldeutsche Energie AG.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Baugrund SÜD Gesellschaft FÜR Geothermie MBHbaugrundsued.de HQ: Bad Wurzach, GermanyReported employees: 51-200 | Bad Wurzach, Germany | 51-200 | Exact match | 50 contacts → |
“BauGrund Süd Gesellschaft für Geothermie mbH is an utilities company based out of MAYBACHSTRASSE 5, Bad Wurzach, Germany.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Wegatechheim-watt.de HQ: Cologne, GermanyReported employees: 51-200 | Cologne, Germany | 51-200 | Exact match | 37 contacts → |
“heimWatt hat Ende Januar 2025 u.a.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Waterkotte Gmbhwaterkotte.de HQ: Herne, GermanyReported employees: 51-200 | Herne, Germany | 51-200 | Exact match | 32 contacts → |
“Die WATERKOTTE GmbH ist mit über 50 Jahren Erfahrung als Hersteller nachhaltiger Energiesysteme auf Basis der Wärmepumpe ein Pionier der Branche.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | HQ: Deggendorf, GermanyReported employees: 51-200 | Deggendorf, Germany | 51-200 | Exact match | 31 contacts → |
“Die DrillTec GUT GmbH Großbohr- und Umwelttechnik gehört zu den europaweit agierenden Bohrkontraktoren für namhafte Unternehmen der Öl, Gas- und Geothermie-Branche.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Daldrup & Söhne AGdaldrup.eu HQ: Ascheberg, GermanyReported employees: 51-200 | Ascheberg, Germany | 51-200 | Exact match | 28 contacts → |
“Die Daldrup & Söhne AG ist Spezialist für Bohrtechnik und die Erschließung geologischer Ressourcen in Deutschland mit Sitz in Ascheberg, Nordrhein-Westfalen.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | GWE Groupgwe-gruppe.de HQ: Peine, GermanyReported employees: 201-500 | Peine, Germany | 201-500 | Exact match | 24 contacts → |
“Die GERMAN WATER and ENERGY GROUP (GWE) ist Hersteller richtungsweisender Produkte und Entwickler integrierter Anwendungen für den Brunnenbau und die Geothermie.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | IEP Innovative Energie FÜR Pullach Gmbhiep-pullach.de HQ: Pullach Im Isartal, GermanyReported employees: 11-50 | Pullach Im Isartal, Germany | 11-50 | Exact match | 23 contacts → |
“IEP Innovative Energie für Pullach GmbH is a geothermal and district heating operator based in Pullach im Isartal, Germany.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | H. Anger's Söhne Bohr- UND Brunnenbaugesellschaft MBHangers-soehne.com HQ: Hessisch Lichtenau, GermanyReported employees: 51-200 | Hessisch Lichtenau, Germany | 51-200 | Exact match | 23 contacts → |
“H.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Deutsche Erdwärmedeutsche-erdwaerme.de HQ: Karlsruhe, GermanyReported employees: 11-50 | Karlsruhe, Germany | 11-50 | Exact match | 21 contacts → |
“Deutsche ErdWärme entwickelt, baut, finanziert und betreibt Erdwärmeanlagen zur Dekarbonisierung von Wärmenetzen.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Antares Datensysteme Gmbhantares-geo.de HQ: Stuhr, GermanyReported employees: 51-200 | Stuhr, Germany | 51-200 | Exact match | 21 contacts → |
“ANTARES provides international experience in a wide spectrum of geophysical techniques, ranging from borehole geophysics, borehole seismic, cavern logging, environmental, and…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Geothermie Neubrandenburg Gmbhgtn-online.de HQ: Neubrandenburg, GermanyReported employees: 11-50 | Neubrandenburg, Germany | 11-50 | Exact match | 21 contacts → |
“Geothermie Neubrandenburg GmbH (GTN) is an internationally active consultancy and planning office of engineers and geoscientsits.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Heat 11 Gmbh & Co. KGheat11.com HQ: Bielefeld, GermanyReported employees: 51-200 | Bielefeld, Germany | 51-200 | Exact match | 21 contacts → |
“Our commitment: Heat transfer in perfection!” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Erdwerk Gmbherdwerk.com HQ: Munich, GermanyReported employees: 11-50 | Munich, Germany | 11-50 | Exact match | 21 contacts → |
“ERDWERK GmbH is an independent planning office offering consulting services in the fields of geothermal energy, geology, hydrogeology, energetics and drilling technology.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Terratec Geophysical Services Gmbh & Co.Kgterratec-geoservices.com HQ: Heitersheim, GermanyReported employees: 11-50 | Heitersheim, Germany | 11-50 | Exact match | 20 contacts → |
“terratec Geophysical Services offers surface geophysical and borehole logging services worldwide.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 284 company matches
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Geothermal companies: dataset insights
September 15, 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
271 records in the displayed employee bands.
13 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 284 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 15, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for geothermal 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 geothermal companies did RevenueBase find based in Germany?
The saved snapshot records 284 matching company records, 3,232 tracked contacts and 1,029 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 15, 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
Geothermal companies by geography
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Browse the directory
Cite this list
RevenueBase Data Team. Top 25 geothermal companies based in Germany. Snapshot: September 15, 2026. https://revenuebase.ai/companies/geothermal-companies/germany.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗