Company lists · Data refreshed September 2026
Top 25 Geothermal system installers based in Germany
RevenueBase identified 421 company matches for geothermal system installers associated with Germany as of September 2026 and tracks 1,623 professional contacts across them, including 546 with verified work emails. Berlin is the largest hub.
This list covers company matches for geothermal system installers 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 20, 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 system installers based in Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 20, 2026 · View company records in RevenueBase | |||||
| 2 | 136 contacts → | ||||
Exact match “Enter ist ein bundesweit tätiger Anbieter von Wärmepumpen, Solaranlagen (Photovoltaik) mit Stromspeicher, Wallboxen und Energiemanagement-Systemen für Eigenheimbesitzer in…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 3 | 112 contacts → | ||||
Exact match “BRÖTJE efficient heating system technology.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 4 | 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 20, 2026 · View company records in RevenueBase | |||||
| 5 | 47 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 · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 37 contacts → | ||||
Exact match “heimWatt hat Ende Januar 2025 u.a.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 7 | 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 20, 2026 · View company records in RevenueBase | |||||
| 8 | 22 contacts → | ||||
Exact match “CALOR ENERGY is a Germany-wide partner for integrated and economically viable energy solutions across residential real estate, commercial properties, and private investment…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 9 | 20 contacts → | ||||
Exact match “Die goodmen energy GmbH hat sich auf die Planung und Realisation von Wärme- und Kälte-Versorgung aus regenerativen Quellen spezialisiert.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 10 | 15 contacts → | ||||
Exact match “Natelberg Gebäudetechnik GmbH is a computer networking company based out of 9 Schwarzmoorstraße, Rhauderfehn, Germany.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 11 | 14 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 12 | 13 contacts → | ||||
Exact match “tga bodensee GmbH ist ein Unternehmen, das die Beratung und Umsetzung von zukunftsweisender Haus- und Energietechnik sowohl für Privat- als auch Gewerbekunden anbietet.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 13 | 11 contacts → | ||||
Exact match “revotec energy ist ein führender Anbieter von Solaranlagen in Baden-Württemberg installiert auf Industrie- und Gewerbeimmobilien sowie Gebäuden von Kommunen und Vereinen.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 14 | 11 contacts → | ||||
Exact match “Die Herausforderung unserer Generation ist der Klimawandel, eine Mammutaufgabe.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 15 | 10 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 16 | 10 contacts → | ||||
Exact match “Energielösungen und Heizsysteme von Matari: Für Ihre Zukunft Unsere Mission ist es, die Häuser und Hallen in unserer Region mit grüner, günstiger Energie und Wärme zu versorgen…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 17 | 9 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 18 | 9 contacts → | ||||
Exact match “Heizung - Klima - Sanitär” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 19 | 8 contacts → | ||||
Exact match “GIEDORF ist regionaler Meisterbetrieb und Fullservice-Anbieter für Wärmepumpen, Photovoltaiklösungen, Stromspeicher, Klimaanlagen und Energie-Management-Systeme – für Eigenheime…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 20 | 8 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 21 | 7 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 22 | 7 contacts → | ||||
Exact match “Die eco contract GmbH aus Hannover ist der Partner an Ihrer Seite zur Bewältigung der Energiewende in der Immobilienwirtschaft.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 23 | 7 contacts → | ||||
Exact match “Wir sind der Partner für Photovoltaik, Wärmepumpen, Klimaanlagen und mehr – mit persönlicher Beratung, durchdachter Planung und zuverlässiger Umsetzung.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 24 | 7 contacts → | ||||
Exact match “Klimatechnik Wagner GmbH is a company based out of 8 Daimlerstraße, Neusäß, Germany.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 25 | 7 contacts → | ||||
Exact match “B&K Energie bietet umfassende Expertise und innovative Technologien, um Gebäude effizient und nachhaltig zu gestalten.” Recorded in the RevenueBase company graph · Sep 20, 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 system installers”. 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 421 geothermal system installers based in Germany
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Geothermal system installers based in Germany at a glance
As of Sep 20, 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 421 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 system installers” 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 546 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 20, 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 system installers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many geothermal system installers are there based in Germany?
RevenueBase identified 421 company matches for geothermal system installers 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?
Energieversum EIN Unternehmen DER Enbw Gruppe tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most geothermal system installers?
Berlin leads with 19 company records, followed by Hamburg (7) and Cologne (4).
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 546 professional contacts with verified work emails tracked across these 421 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 20, 2026.
Ready to reach these companies? Verified emails and direct dials for all 421 geothermal system installers based in Germany. Start with a free account, no credit card.
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Geothermal system installers by geography
- Geothermal system installers based in Australia
- Geothermal system installers based in Austria
- Geothermal system installers based in Belgium
- Geothermal system installers based in Canada
- Geothermal system installers based in Czechia
- Geothermal system installers based in Denmark
- Geothermal system installers based in Finland
- Geothermal system installers based in France
- Geothermal system installers based in Ireland
- Geothermal system installers based in Italy
- Geothermal system installers based in the Netherlands
- Geothermal system installers based in New Zealand
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
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Geothermal system installers based in Australia
- Geothermal system installers based in Austria
- Geothermal system installers based in Belgium
- Geothermal system installers based in Canada
- Geothermal system installers based in Czechia
- Geothermal system installers based in Denmark
Company intelligence · public preview
Top 25 geothermal system installers 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 421 matching company records for geothermal system installers based in Germany, with 1,623 tracked contacts and 546 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 20, 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 system installers 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 |  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 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  ENTERenter.deHQ: Berlin, GermanyReported employees: 51-200 | Berlin, Germany | 51-200 | Exact match | 136 contacts → |
“Enter ist ein bundesweit tätiger Anbieter von Wärmepumpen, Solaranlagen (Photovoltaik) mit Stromspeicher, Wallboxen und Energiemanagement-Systemen für Eigenheimbesitzer in…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  August Brötje Gmbhbroetje.deHQ: Rastede, GermanyReported employees: 201-500 | Rastede, Germany | 201-500 | Exact match | 112 contacts → |
“BRÖTJE efficient heating system technology.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  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 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  E-Conecon-ag.comHQ: Memmingen, GermanyReported employees: 51-200 | Memmingen, Germany | 51-200 | Exact match | 47 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 · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  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 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | 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 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Calor Energycalor-energy.de HQ: Hamburg, GermanyReported employees: 11-50 | Hamburg, Germany | 11-50 | Exact match | 22 contacts → |
“CALOR ENERGY is a Germany-wide partner for integrated and economically viable energy solutions across residential real estate, commercial properties, and private investment…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Goodmen Energy Gmbhgoodmen-energy.deHQ: Gräfelfing, GermanyReported employees: 11-50 | Gräfelfing, Germany | 11-50 | Exact match | 20 contacts → |
“Die goodmen energy GmbH hat sich auf die Planung und Realisation von Wärme- und Kälte-Versorgung aus regenerativen Quellen spezialisiert.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Natelberg Gebäudetechnik Gmbhnatelberg.de HQ: Rhauderfehn, GermanyReported employees: 11-50 | Rhauderfehn, Germany | 11-50 | Exact match | 15 contacts → |
“Natelberg Gebäudetechnik GmbH is a computer networking company based out of 9 Schwarzmoorstraße, Rhauderfehn, Germany.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Wibau Haustechnik Gmbhwibau-haustechnik.de HQ: Schwerin, GermanyReported employees: 11-50 | Schwerin, Germany | 11-50 | Exact match | 14 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 12 |  TGA Bodensee Gmbhtga-bodensee.deHQ: Salem, GermanyReported employees: 51-200 | Salem, Germany | 51-200 | Exact match | 13 contacts → |
“tga bodensee GmbH ist ein Unternehmen, das die Beratung und Umsetzung von zukunftsweisender Haus- und Energietechnik sowohl für Privat- als auch Gewerbekunden anbietet.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Revotec Energy Gmbhrevotec-energy.deHQ: Weissach, GermanyReported employees: 11-50 | Weissach, Germany | 11-50 | Exact match | 11 contacts → |
“revotec energy ist ein führender Anbieter von Solaranlagen in Baden-Württemberg installiert auf Industrie- und Gewerbeimmobilien sowie Gebäuden von Kommunen und Vereinen.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | H&s Energiesystemehs-energiesysteme.de HQ: Willich, GermanyReported employees: 11-50 | Willich, Germany | 11-50 | Exact match | 11 contacts → |
“Die Herausforderung unserer Generation ist der Klimawandel, eine Mammutaufgabe.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | ECO Mondia Green Technology Europe Gmbhecomondia.com HQ: Dortmund, GermanyReported employees: 51-200 | Dortmund, Germany | 51-200 | Exact match | 10 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 16 | Matari Gmbhmatari.de HQ: Ahrensburg, GermanyReported employees: 51-200 | Ahrensburg, Germany | 51-200 | Exact match | 10 contacts → |
“Energielösungen und Heizsysteme von Matari: Für Ihre Zukunft Unsere Mission ist es, die Häuser und Hallen in unserer Region mit grüner, günstiger Energie und Wärme zu versorgen…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Erdwärme Grünwald Gmbherdwaerme-gruenwald.de HQ: Grünwald, GermanyReported employees: 11-50 | Grünwald, Germany | 11-50 | Exact match | 9 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 18 | H. Maurer Gmbh & Co. KGmaurer-schramberg.de HQ: Schramberg, GermanyReported employees: 51-200 | Schramberg, Germany | 51-200 | Exact match | 9 contacts → |
“Heizung - Klima - Sanitär” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Giedorfgiedorf.de HQ: Neuss, GermanyReported employees: 51-200 | Neuss, Germany | 51-200 | Exact match | 8 contacts → |
“GIEDORF ist regionaler Meisterbetrieb und Fullservice-Anbieter für Wärmepumpen, Photovoltaiklösungen, Stromspeicher, Klimaanlagen und Energie-Management-Systeme – für Eigenheime…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Elektro Drämer Gmbhelektro-draemer.de HQ: Recklinghausen, GermanyReported employees: 1-10 | Recklinghausen, Germany | 1-10 | Exact match | 8 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 | Barella Gebäude- UND Energietechnik Gmbhbarella.de HQ: Bad Sassendorf, GermanyReported employees: 1-10 | Bad Sassendorf, Germany | 1-10 | Exact match | 7 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 22 | ECO Contracteco-contract.de HQ: Hanover, GermanyReported employees: 1-10 | Hanover, Germany | 1-10 | Exact match | 7 contacts → |
“Die eco contract GmbH aus Hannover ist der Partner an Ihrer Seite zur Bewältigung der Energiewende in der Immobilienwirtschaft.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Leonda Energie Gmbhleonda-energie.de HQ: Nuremberg, GermanyReported employees: 51-200 | Nuremberg, Germany | 51-200 | Exact match | 7 contacts → |
“Wir sind der Partner für Photovoltaik, Wärmepumpen, Klimaanlagen und mehr – mit persönlicher Beratung, durchdachter Planung und zuverlässiger Umsetzung.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Klimatechnik Wagner Gmbhklimatechnik-wagner.de HQ: Neusäß, GermanyReported employees: 51-200 | Neusäß, Germany | 51-200 | Exact match | 7 contacts → |
“Klimatechnik Wagner GmbH is a company based out of 8 Daimlerstraße, Neusäß, Germany.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  B&k Energie UND Wärmelösungen Gmbhbk-energie.comHQ: Berlin, GermanyReported employees: 11-50 | Berlin, Germany | 11-50 | Exact match | 7 contacts → |
“B&K Energie bietet umfassende Expertise und innovative Technologien, um Gebäude effizient und nachhaltig zu gestalten.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 421 company matches
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Geothermal system installers: dataset insights
September 20, 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
377 records in the displayed employee bands.
44 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 421 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 20, 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 system installers?
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 system installers did RevenueBase find based in Germany?
The saved snapshot records 421 matching company records, 1,623 tracked contacts and 546 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 20, 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 system installers by geography
- Geothermal system installers based in Australia
- Geothermal system installers based in Austria
- Geothermal system installers based in Belgium
- Geothermal system installers based in Canada
- Geothermal system installers based in Czechia
- Geothermal system installers based in Denmark
- Geothermal system installers based in Finland
- Geothermal system installers based in France
- Geothermal system installers based in Ireland
- Geothermal system installers based in Italy
- Geothermal system installers based in the Netherlands
- Geothermal system installers based in New Zealand
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 geothermal system installers based in Germany. Snapshot: September 20, 2026. https://revenuebase.ai/companies/geothermal-system-installers/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
- Geothermal system installers based in Australia
- Geothermal system installers based in Austria
- Geothermal system installers based in Belgium
- Geothermal system installers based in Canada
- Geothermal system installers based in Czechia
- Geothermal system installers based in Denmark
Company intelligence · public preview
Top 25 geothermal system installers based in Germany
RevenueBase records 421 matching company records for geothermal system installers based in Germany, with 1,623 tracked contacts and 546 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 20, 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 system installers 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 | 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 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | ENTERenter.de HQ: Berlin, GermanyReported employees: 51-200 | Berlin, Germany | 51-200 | Exact match | 136 contacts → |
“Enter ist ein bundesweit tätiger Anbieter von Wärmepumpen, Solaranlagen (Photovoltaik) mit Stromspeicher, Wallboxen und Energiemanagement-Systemen für Eigenheimbesitzer in…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | August Brötje Gmbhbroetje.de HQ: Rastede, GermanyReported employees: 201-500 | Rastede, Germany | 201-500 | Exact match | 112 contacts → |
“BRÖTJE efficient heating system technology.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | 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 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | E-Conecon-ag.com HQ: Memmingen, GermanyReported employees: 51-200 | Memmingen, Germany | 51-200 | Exact match | 47 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 · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | 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 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | 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 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Calor Energycalor-energy.de HQ: Hamburg, GermanyReported employees: 11-50 | Hamburg, Germany | 11-50 | Exact match | 22 contacts → |
“CALOR ENERGY is a Germany-wide partner for integrated and economically viable energy solutions across residential real estate, commercial properties, and private investment…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Goodmen Energy Gmbhgoodmen-energy.de HQ: Gräfelfing, GermanyReported employees: 11-50 | Gräfelfing, Germany | 11-50 | Exact match | 20 contacts → |
“Die goodmen energy GmbH hat sich auf die Planung und Realisation von Wärme- und Kälte-Versorgung aus regenerativen Quellen spezialisiert.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Natelberg Gebäudetechnik Gmbhnatelberg.de HQ: Rhauderfehn, GermanyReported employees: 11-50 | Rhauderfehn, Germany | 11-50 | Exact match | 15 contacts → |
“Natelberg Gebäudetechnik GmbH is a computer networking company based out of 9 Schwarzmoorstraße, Rhauderfehn, Germany.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Wibau Haustechnik Gmbhwibau-haustechnik.de HQ: Schwerin, GermanyReported employees: 11-50 | Schwerin, Germany | 11-50 | Exact match | 14 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 12 | TGA Bodensee Gmbhtga-bodensee.de HQ: Salem, GermanyReported employees: 51-200 | Salem, Germany | 51-200 | Exact match | 13 contacts → |
“tga bodensee GmbH ist ein Unternehmen, das die Beratung und Umsetzung von zukunftsweisender Haus- und Energietechnik sowohl für Privat- als auch Gewerbekunden anbietet.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Revotec Energy Gmbhrevotec-energy.de HQ: Weissach, GermanyReported employees: 11-50 | Weissach, Germany | 11-50 | Exact match | 11 contacts → |
“revotec energy ist ein führender Anbieter von Solaranlagen in Baden-Württemberg installiert auf Industrie- und Gewerbeimmobilien sowie Gebäuden von Kommunen und Vereinen.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | H&s Energiesystemehs-energiesysteme.de HQ: Willich, GermanyReported employees: 11-50 | Willich, Germany | 11-50 | Exact match | 11 contacts → |
“Die Herausforderung unserer Generation ist der Klimawandel, eine Mammutaufgabe.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | ECO Mondia Green Technology Europe Gmbhecomondia.com HQ: Dortmund, GermanyReported employees: 51-200 | Dortmund, Germany | 51-200 | Exact match | 10 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 16 | Matari Gmbhmatari.de HQ: Ahrensburg, GermanyReported employees: 51-200 | Ahrensburg, Germany | 51-200 | Exact match | 10 contacts → |
“Energielösungen und Heizsysteme von Matari: Für Ihre Zukunft Unsere Mission ist es, die Häuser und Hallen in unserer Region mit grüner, günstiger Energie und Wärme zu versorgen…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Erdwärme Grünwald Gmbherdwaerme-gruenwald.de HQ: Grünwald, GermanyReported employees: 11-50 | Grünwald, Germany | 11-50 | Exact match | 9 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 18 | H. Maurer Gmbh & Co. KGmaurer-schramberg.de HQ: Schramberg, GermanyReported employees: 51-200 | Schramberg, Germany | 51-200 | Exact match | 9 contacts → |
“Heizung - Klima - Sanitär” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Giedorfgiedorf.de HQ: Neuss, GermanyReported employees: 51-200 | Neuss, Germany | 51-200 | Exact match | 8 contacts → |
“GIEDORF ist regionaler Meisterbetrieb und Fullservice-Anbieter für Wärmepumpen, Photovoltaiklösungen, Stromspeicher, Klimaanlagen und Energie-Management-Systeme – für Eigenheime…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Elektro Drämer Gmbhelektro-draemer.de HQ: Recklinghausen, GermanyReported employees: 1-10 | Recklinghausen, Germany | 1-10 | Exact match | 8 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 | Barella Gebäude- UND Energietechnik Gmbhbarella.de HQ: Bad Sassendorf, GermanyReported employees: 1-10 | Bad Sassendorf, Germany | 1-10 | Exact match | 7 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 22 | ECO Contracteco-contract.de HQ: Hanover, GermanyReported employees: 1-10 | Hanover, Germany | 1-10 | Exact match | 7 contacts → |
“Die eco contract GmbH aus Hannover ist der Partner an Ihrer Seite zur Bewältigung der Energiewende in der Immobilienwirtschaft.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Leonda Energie Gmbhleonda-energie.de HQ: Nuremberg, GermanyReported employees: 51-200 | Nuremberg, Germany | 51-200 | Exact match | 7 contacts → |
“Wir sind der Partner für Photovoltaik, Wärmepumpen, Klimaanlagen und mehr – mit persönlicher Beratung, durchdachter Planung und zuverlässiger Umsetzung.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Klimatechnik Wagner Gmbhklimatechnik-wagner.de HQ: Neusäß, GermanyReported employees: 51-200 | Neusäß, Germany | 51-200 | Exact match | 7 contacts → |
“Klimatechnik Wagner GmbH is a company based out of 8 Daimlerstraße, Neusäß, Germany.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | B&k Energie UND Wärmelösungen Gmbhbk-energie.com HQ: Berlin, GermanyReported employees: 11-50 | Berlin, Germany | 11-50 | Exact match | 7 contacts → |
“B&K Energie bietet umfassende Expertise und innovative Technologien, um Gebäude effizient und nachhaltig zu gestalten.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 421 company matches
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Geothermal system installers: dataset insights
September 20, 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
377 records in the displayed employee bands.
44 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 421 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 20, 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 system installers?
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 system installers did RevenueBase find based in Germany?
The saved snapshot records 421 matching company records, 1,623 tracked contacts and 546 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 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 geothermal system installers based in Germany. Snapshot: September 20, 2026. https://revenuebase.ai/companies/geothermal-system-installers/germany.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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