Company lists · Data refreshed November 2026
Top 25 Thermal energy system integrators based in Germany
RevenueBase identified 656 company matches for thermal energy system integrators associated with Germany as of November 2026 and tracks 4,830 professional contacts across them, including 1,699 with verified work emails. Berlin is the largest hub.
This list covers company matches for thermal energy system integrators 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 November 6, 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 thermal energy system integrators based in Germany
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 506 contacts → | ||||
Exact match “As a leading supplier of heating and air handling systems, we are perfectly in tune with you.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 155 contacts → | ||||
Exact match “ELMATIC ist ein erfolgreiches Dienstleistungsunternehmen der Gebäudetechnik für gewerbliche und industrielle Kunden.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 140 contacts → | ||||
Exact match “1967 gegründet, sind wir heute nicht nur eines der führenden deutschen Unternehmen im gebäudetechnischen Anlagenbau, sondern vor allem auch überzeugte Klimaschützer.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 128 contacts → | ||||
Exact match “Wir verbinden Anlagentechnik und maßgeschneiderte Services, um die Energie unserer Kunden optimal einzusetzen - und das seit über 120 Jahren.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 117 contacts → | ||||
Exact match “BRÖTJE efficient heating system technology.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 106 contacts → | ||||
Exact match “Mit innovativer Technik zur Übergabe und Verteilung von Wärme auf der entscheidenden „letzten Meile“ vereinfacht und beschleunigt PEWO die Integration regenerativer Energiequellen.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 80 contacts → | ||||
Exact match “Seit über vier Jahrzehnten setzen Kunden auf innovative Energiespartechnik aus dem Hause ONI.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 57 contacts → | ||||
Exact match “FACT.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 44 contacts → | ||||
Exact match “NESS – Your partner for process heating solutions Solutions for process heating systems for more than 50 years For more than 50 years we have been developing solutions for process…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 43 contacts → | ||||
Exact match “TLK-Thermo GmbH combines in a unique way comprehensive thermodynamic expertise with many years of experience in the areas of software development, simulation and testing…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 41 contacts → | ||||
Exact match “Die L&R Kältetechnik GmbH & Co.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 41 contacts → | ||||
Exact match “Technical equipment - Integrated building planning - Energy systems” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 36 contacts → | ||||
Exact match “airinotec GmbH is a globally active provider of systems for sophisticated air conditioning and ventilation projects.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 35 contacts → | ||||
Exact match “HOSCH Gebäudeautomation wurde 2002 in Teltow gegründet und hat sich als fabrikatsunabhängiger Systemintegrator mit Niederlassungen in Nürnberg, Hamburg und Düsseldorf in…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 35 contacts → | ||||
Exact match “Die Energiedienstleistungen Rhein-Neckar GmbH (ERN) ist Teil der GreenFlex Organisation und ist im Schwerpunkt verantwortlich für Bau- und Contracting-Lösungen im industriellen…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 34 contacts → | ||||
Exact match “Energy consulting for industry and engineering for thermal, process, and energy systems – solving complex challenges and maximizing efficiency through simulation, thermodynamics…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 33 contacts → | ||||
Exact match “Wir, die iNeG, sind ein genossenschaftlich organisiertes Ingenieurbüro und erbringen alle Leistungen im Energie- management.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 33 contacts → | ||||
Exact match “Wir bieten Ihnen einen umfassenden Service für die Kälteanlage in Ihrem Betrieb an.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 31 contacts → | ||||
Exact match “Die KÄLTE-KLIMA Firmengruppe plant, baut und betreut Kälteanlagen, Klimaanlagen und Wärmepumpen für Gewerbe, Industrie und Handel.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 30 contacts → | ||||
Exact match “Seit über 45 Jahren gestalten wir die Technische Gebäudeausrüstung von morgen – von zukunftsweisenden Kliniken und Gesundheitsbauten bis zu komplexen Büro, Bildungs- und…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 28 contacts → | ||||
Exact match “G-TEC Ingenieure GmbH plant zukunftsfähige Gebäudeenergetik durch integrierte Gesamtplanungsleistungen und unter Berücksichtigung von Gebäudetechnik und Gebäudephysik.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 28 contacts → | ||||
Exact match “Ritter XL Solar steht für Hochleistungs-Solarthermie im Großformat.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 27 contacts → | ||||
Exact match “SOLVE TOMORROW'S CHALLENGES TODAY At Güntner, we combine maximum precision in everyday life with a vision for the future in order to provide our partners with the best possible…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 27 contacts → | ||||
Exact match “Über uns Unternehmensleitbild INOVIS IN(n)OVATION Wir sind ein Team hervorragend ausgebildeter und motivierter Ingenieure und Mitarbeiter.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 25 contacts → | ||||
Exact match “Our commitment: Heat transfer in perfection!” Recorded in the RevenueBase company graph · Nov 6, 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 “thermal energy system integrators”. 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 656 thermal energy system integrators based in Germany
See the full list, filter by size, metro and specialty, and access 1,699 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Thermal energy system integrators based in Germany at a glance
As of Nov 6, 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 656 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 “thermal energy system integrators” 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 1,699 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 November 6, 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.
Thermal energy system integrators by metro
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “thermal energy system integrators”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many thermal energy system integrators are there based in Germany?
RevenueBase identified 656 company matches for thermal energy system integrators associated with Germany as of November 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?
Wolf Gmbh tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most thermal energy system integrators?
Berlin leads with 33 company records, followed by Hamburg (15) and Munich (13).
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 1,699 professional contacts with verified work emails tracked across these 656 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 November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 656 thermal energy system integrators based in Germany. Start with a free account, no credit card.
Download this list →Related lists
Thermal energy system integrators by geography
- Thermal energy system integrators based in Sao Paulo, Brazil
- Thermal energy system integrators based in Paris, France
- Thermal energy system integrators based in Berlin, Germany
- Thermal energy system integrators based in Milan, Italy
- Thermal energy system integrators based in Rome, Italy
- Thermal energy system integrators based in Madrid, Spain
- Thermal energy system integrators based in Istanbul, Türkiye
- Thermal energy system integrators based in Dubai, United Arab Emirates
- Thermal energy system integrators based in London, United Kingdom
- Thermal energy system integrators based in Houston, United States
- Thermal energy system integrators based in New York, United States
- Thermal energy system integrators based in Argentina
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.
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Company intelligence · public preview
Top 25 thermal energy system integrators 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 656 matching company records for thermal energy system integrators based in Germany, with 4,830 tracked contacts and 1,699 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: November 6, 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 thermal energy system integrators 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 |  Wolf Gmbhwolf.euHQ: Mainburg, GermanyReported employees: 1,001-5,000 | Mainburg, Germany | 1,001-5,000 | Exact match | 506 contacts → |
“As a leading supplier of heating and air handling systems, we are perfectly in tune with you.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Elmatic Gmbhelmatic.deHQ: Hamburg, GermanyReported employees: 501-1,000 | Hamburg, Germany | 501-1,000 | Exact match | 155 contacts → |
“ELMATIC ist ein erfolgreiches Dienstleistungsunternehmen der Gebäudetechnik für gewerbliche und industrielle Kunden.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Otto Building Technologies Gmbhottoindustries.comHQ: Bad Berleburg, GermanyReported employees: 501-1,000 | Bad Berleburg, Germany | 501-1,000 | Exact match | 140 contacts → |
“1967 gegründet, sind wir heute nicht nur eines der führenden deutschen Unternehmen im gebäudetechnischen Anlagenbau, sondern vor allem auch überzeugte Klimaschützer.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Apleona Wolfferts Gmbhwolfferts.apleona.comHQ: Cologne, GermanyReported employees: 1,001-5,000 | Cologne, Germany | 1,001-5,000 | Exact match | 128 contacts → |
“Wir verbinden Anlagentechnik und maßgeschneiderte Services, um die Energie unserer Kunden optimal einzusetzen - und das seit über 120 Jahren.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  August Brötje Gmbhbroetje.deHQ: Rastede, GermanyReported employees: 201-500 | Rastede, Germany | 201-500 | Exact match | 117 contacts → |
“BRÖTJE efficient heating system technology.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Pewo Energietechnik Gmbhpewo.deHQ: Elsterheide, GermanyReported employees: 201-500 | Elsterheide, Germany | 201-500 | Exact match | 106 contacts → |
“Mit innovativer Technik zur Übergabe und Verteilung von Wärme auf der entscheidenden „letzten Meile“ vereinfacht und beschleunigt PEWO die Integration regenerativer Energiequellen.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Oni-Wärmetrafo Gmbhoni.deHQ: Lindlar, GermanyReported employees: 201-500 | Lindlar, Germany | 201-500 | Exact match | 80 contacts → |
“Seit über vier Jahrzehnten setzen Kunden auf innovative Energiespartechnik aus dem Hause ONI.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Fact Gmbh Efacilities Solutionsfact-gmbh.comHQ: Boblingen, GermanyReported employees: 51-200 | Boblingen, Germany | 51-200 | Exact match | 57 contacts → |
“FACT.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Ness Wärmetechnik Gmbhness.deHQ: Remshalden, GermanyReported employees: 51-200 | Remshalden, Germany | 51-200 | Exact match | 44 contacts → |
“NESS – Your partner for process heating solutions Solutions for process heating systems for more than 50 years For more than 50 years we have been developing solutions for process…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Tlk-Thermo Gmbhtlk-thermo.comHQ: Braunschweig, GermanyReported employees: 51-200 | Braunschweig, Germany | 51-200 | Exact match | 43 contacts → |
“TLK-Thermo GmbH combines in a unique way comprehensive thermodynamic expertise with many years of experience in the areas of software development, simulation and testing…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  L&r Kältetechnik Gmbh & Co.Kglr-kaelte.deHQ: Sundern, GermanyReported employees: 51-200 | Sundern, Germany | 51-200 | Exact match | 41 contacts → |
“Die L&R Kältetechnik GmbH & Co.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Heimann Ingenieure Gmbhheimann.deHQ: Berlin, GermanyReported employees: 51-200 | Berlin, Germany | 51-200 | Exact match | 41 contacts → |
“Technical equipment - Integrated building planning - Energy systems” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Airinotec Gmbhairinotec.comHQ: Bayreuth, GermanyReported employees: 51-200 | Bayreuth, Germany | 51-200 | Exact match | 36 contacts → |
“airinotec GmbH is a globally active provider of systems for sophisticated air conditioning and ventilation projects.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Hosch Gebäudeautomationhosch-ga.deHQ: Teltow, GermanyReported employees: 51-200 | Teltow, Germany | 51-200 | Exact match | 35 contacts → |
“HOSCH Gebäudeautomation wurde 2002 in Teltow gegründet und hat sich als fabrikatsunabhängiger Systemintegrator mit Niederlassungen in Nürnberg, Hamburg und Düsseldorf in…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  ERNern-energie.deHQ: Ludwigshafen Am Rhein, GermanyReported employees: 11-50 | Ludwigshafen Am Rhein, Germany | 11-50 | Exact match | 35 contacts → |
“Die Energiedienstleistungen Rhein-Neckar GmbH (ERN) ist Teil der GreenFlex Organisation und ist im Schwerpunkt verantwortlich für Bau- und Contracting-Lösungen im industriellen…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  TLK Energytlk-energy.deHQ: Aachen, GermanyReported employees: 11-50 | Aachen, Germany | 11-50 | Exact match | 34 contacts → |
“Energy consulting for industry and engineering for thermal, process, and energy systems – solving complex challenges and maximizing efficiency through simulation, thermodynamics…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Ingenieurnetzwerk Energie EGineg-energie.deHQ: Bad Iburg, GermanyReported employees: 51-200 | Bad Iburg, Germany | 51-200 | Exact match | 33 contacts → |
“Wir, die iNeG, sind ein genossenschaftlich organisiertes Ingenieurbüro und erbringen alle Leistungen im Energie- management.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Zimmermann Gmbh Industriekälte,anlagenbau,planung,projektierungzimmermann-industriekaelte.deHQ: Buchholz In Der Nordheide, GermanyReported employees: 51-200 | Buchholz In Der Nordheide, Germany | 51-200 | Exact match | 33 contacts → |
“Wir bieten Ihnen einen umfassenden Service für die Kälteanlage in Ihrem Betrieb an.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Kälte-Klima Firmengruppekaelte-klima-gmbh.deHQ: Hameln, GermanyReported employees: 201-500 | Hameln, Germany | 201-500 | Exact match | 31 contacts → |
“Die KÄLTE-KLIMA Firmengruppe plant, baut und betreut Kälteanlagen, Klimaanlagen und Wärmepumpen für Gewerbe, Industrie und Handel.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Rieker Planungsgesellschaft MBHib-rieker.deHQ: Schwaikheim, GermanyReported employees: 51-200 | Schwaikheim, Germany | 51-200 | Exact match | 30 contacts → |
“Seit über 45 Jahren gestalten wir die Technische Gebäudeausrüstung von morgen – von zukunftsweisenden Kliniken und Gesundheitsbauten bis zu komplexen Büro, Bildungs- und…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  G-Tec Ingenieure Gmbhgtec.deHQ: Siegen, GermanyReported employees: 51-200 | Siegen, Germany | 51-200 | Exact match | 28 contacts → |
“G-TEC Ingenieure GmbH plant zukunftsfähige Gebäudeenergetik durch integrierte Gesamtplanungsleistungen und unter Berücksichtigung von Gebäudetechnik und Gebäudephysik.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Ritter XL Solarritter-xl-solar.deHQ: Dettenhausen, GermanyReported employees: 51-200 | Dettenhausen, Germany | 51-200 | Exact match | 28 contacts → |
“Ritter XL Solar steht für Hochleistungs-Solarthermie im Großformat.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Güntnerguntner.com HQ: Furstenfeldbruck, GermanyReported employees: 1,001-5,000 | Furstenfeldbruck, Germany | 1,001-5,000 | Exact match | 27 contacts → |
“SOLVE TOMORROW'S CHALLENGES TODAY At Güntner, we combine maximum precision in everyday life with a vision for the future in order to provide our partners with the best possible…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Inovis Ingenieure Gmbhinovis-ingenieure.deHQ: Hauptniederlassung München / Süd, GermanyReported employees: 51-200 | Hauptniederlassung München / Süd, Germany | 51-200 | Exact match | 27 contacts → |
“Über uns Unternehmensleitbild INOVIS IN(n)OVATION Wir sind ein Team hervorragend ausgebildeter und motivierter Ingenieure und Mitarbeiter.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Heat 11 Gmbh & Co. KGheat11.comHQ: Bielefeld, GermanyReported employees: 51-200 | Bielefeld, Germany | 51-200 | Exact match | 25 contacts → |
“Our commitment: Heat transfer in perfection!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 656 company matches
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Thermal energy system integrators: dataset insights
November 6, 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
594 records in the displayed employee bands.
62 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 656 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: November 6, 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 ↗
Thermal energy system integrators by metro
Questions about this company list
What does Exact match mean for thermal energy system integrators?
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 thermal energy system integrators did RevenueBase find based in Germany?
The saved snapshot records 656 matching company records, 4,830 tracked contacts and 1,699 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: November 6, 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
Thermal energy system integrators by geography
- Thermal energy system integrators based in Sao Paulo, Brazil
- Thermal energy system integrators based in Paris, France
- Thermal energy system integrators based in Berlin, Germany
- Thermal energy system integrators based in Milan, Italy
- Thermal energy system integrators based in Rome, Italy
- Thermal energy system integrators based in Madrid, Spain
- Thermal energy system integrators based in Istanbul, Türkiye
- Thermal energy system integrators based in Dubai, United Arab Emirates
- Thermal energy system integrators based in London, United Kingdom
- Thermal energy system integrators based in Houston, United States
- Thermal energy system integrators based in New York, United States
- Thermal energy system integrators based in Argentina
Cite this list
RevenueBase Data Team. Top 25 thermal energy system integrators based in Germany. Snapshot: November 6, 2026. https://revenuebase.ai/companies/thermal-energy-system-integrators/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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- Thermal energy system integrators based in Sao Paulo, Brazil
- Thermal energy system integrators based in Paris, France
- Thermal energy system integrators based in Berlin, Germany
- Thermal energy system integrators based in Milan, Italy
- Thermal energy system integrators based in Rome, Italy
- Thermal energy system integrators based in Madrid, Spain
Company intelligence · public preview
Top 25 thermal energy system integrators based in Germany
RevenueBase records 656 matching company records for thermal energy system integrators based in Germany, with 4,830 tracked contacts and 1,699 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: November 6, 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 thermal energy system integrators 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 | Wolf Gmbhwolf.eu HQ: Mainburg, GermanyReported employees: 1,001-5,000 | Mainburg, Germany | 1,001-5,000 | Exact match | 506 contacts → |
“As a leading supplier of heating and air handling systems, we are perfectly in tune with you.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Elmatic Gmbhelmatic.de HQ: Hamburg, GermanyReported employees: 501-1,000 | Hamburg, Germany | 501-1,000 | Exact match | 155 contacts → |
“ELMATIC ist ein erfolgreiches Dienstleistungsunternehmen der Gebäudetechnik für gewerbliche und industrielle Kunden.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Otto Building Technologies Gmbhottoindustries.com HQ: Bad Berleburg, GermanyReported employees: 501-1,000 | Bad Berleburg, Germany | 501-1,000 | Exact match | 140 contacts → |
“1967 gegründet, sind wir heute nicht nur eines der führenden deutschen Unternehmen im gebäudetechnischen Anlagenbau, sondern vor allem auch überzeugte Klimaschützer.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Apleona Wolfferts Gmbhwolfferts.apleona.com HQ: Cologne, GermanyReported employees: 1,001-5,000 | Cologne, Germany | 1,001-5,000 | Exact match | 128 contacts → |
“Wir verbinden Anlagentechnik und maßgeschneiderte Services, um die Energie unserer Kunden optimal einzusetzen - und das seit über 120 Jahren.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | August Brötje Gmbhbroetje.de HQ: Rastede, GermanyReported employees: 201-500 | Rastede, Germany | 201-500 | Exact match | 117 contacts → |
“BRÖTJE efficient heating system technology.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Pewo Energietechnik Gmbhpewo.de HQ: Elsterheide, GermanyReported employees: 201-500 | Elsterheide, Germany | 201-500 | Exact match | 106 contacts → |
“Mit innovativer Technik zur Übergabe und Verteilung von Wärme auf der entscheidenden „letzten Meile“ vereinfacht und beschleunigt PEWO die Integration regenerativer Energiequellen.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Oni-Wärmetrafo Gmbhoni.de HQ: Lindlar, GermanyReported employees: 201-500 | Lindlar, Germany | 201-500 | Exact match | 80 contacts → |
“Seit über vier Jahrzehnten setzen Kunden auf innovative Energiespartechnik aus dem Hause ONI.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Fact Gmbh Efacilities Solutionsfact-gmbh.com HQ: Boblingen, GermanyReported employees: 51-200 | Boblingen, Germany | 51-200 | Exact match | 57 contacts → |
“FACT.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Ness Wärmetechnik Gmbhness.de HQ: Remshalden, GermanyReported employees: 51-200 | Remshalden, Germany | 51-200 | Exact match | 44 contacts → |
“NESS – Your partner for process heating solutions Solutions for process heating systems for more than 50 years For more than 50 years we have been developing solutions for process…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Tlk-Thermo Gmbhtlk-thermo.com HQ: Braunschweig, GermanyReported employees: 51-200 | Braunschweig, Germany | 51-200 | Exact match | 43 contacts → |
“TLK-Thermo GmbH combines in a unique way comprehensive thermodynamic expertise with many years of experience in the areas of software development, simulation and testing…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | L&r Kältetechnik Gmbh & Co.Kglr-kaelte.de HQ: Sundern, GermanyReported employees: 51-200 | Sundern, Germany | 51-200 | Exact match | 41 contacts → |
“Die L&R Kältetechnik GmbH & Co.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Heimann Ingenieure Gmbhheimann.de HQ: Berlin, GermanyReported employees: 51-200 | Berlin, Germany | 51-200 | Exact match | 41 contacts → |
“Technical equipment - Integrated building planning - Energy systems” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Airinotec Gmbhairinotec.com HQ: Bayreuth, GermanyReported employees: 51-200 | Bayreuth, Germany | 51-200 | Exact match | 36 contacts → |
“airinotec GmbH is a globally active provider of systems for sophisticated air conditioning and ventilation projects.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Hosch Gebäudeautomationhosch-ga.de HQ: Teltow, GermanyReported employees: 51-200 | Teltow, Germany | 51-200 | Exact match | 35 contacts → |
“HOSCH Gebäudeautomation wurde 2002 in Teltow gegründet und hat sich als fabrikatsunabhängiger Systemintegrator mit Niederlassungen in Nürnberg, Hamburg und Düsseldorf in…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | ERNern-energie.de HQ: Ludwigshafen Am Rhein, GermanyReported employees: 11-50 | Ludwigshafen Am Rhein, Germany | 11-50 | Exact match | 35 contacts → |
“Die Energiedienstleistungen Rhein-Neckar GmbH (ERN) ist Teil der GreenFlex Organisation und ist im Schwerpunkt verantwortlich für Bau- und Contracting-Lösungen im industriellen…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | TLK Energytlk-energy.de HQ: Aachen, GermanyReported employees: 11-50 | Aachen, Germany | 11-50 | Exact match | 34 contacts → |
“Energy consulting for industry and engineering for thermal, process, and energy systems – solving complex challenges and maximizing efficiency through simulation, thermodynamics…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Ingenieurnetzwerk Energie EGineg-energie.de HQ: Bad Iburg, GermanyReported employees: 51-200 | Bad Iburg, Germany | 51-200 | Exact match | 33 contacts → |
“Wir, die iNeG, sind ein genossenschaftlich organisiertes Ingenieurbüro und erbringen alle Leistungen im Energie- management.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Zimmermann Gmbh Industriekälte,anlagenbau,planung,projektierungzimmermann-industriekaelte.de HQ: Buchholz In Der Nordheide, GermanyReported employees: 51-200 | Buchholz In Der Nordheide, Germany | 51-200 | Exact match | 33 contacts → |
“Wir bieten Ihnen einen umfassenden Service für die Kälteanlage in Ihrem Betrieb an.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Kälte-Klima Firmengruppekaelte-klima-gmbh.de HQ: Hameln, GermanyReported employees: 201-500 | Hameln, Germany | 201-500 | Exact match | 31 contacts → |
“Die KÄLTE-KLIMA Firmengruppe plant, baut und betreut Kälteanlagen, Klimaanlagen und Wärmepumpen für Gewerbe, Industrie und Handel.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Rieker Planungsgesellschaft MBHib-rieker.de HQ: Schwaikheim, GermanyReported employees: 51-200 | Schwaikheim, Germany | 51-200 | Exact match | 30 contacts → |
“Seit über 45 Jahren gestalten wir die Technische Gebäudeausrüstung von morgen – von zukunftsweisenden Kliniken und Gesundheitsbauten bis zu komplexen Büro, Bildungs- und…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | G-Tec Ingenieure Gmbhgtec.de HQ: Siegen, GermanyReported employees: 51-200 | Siegen, Germany | 51-200 | Exact match | 28 contacts → |
“G-TEC Ingenieure GmbH plant zukunftsfähige Gebäudeenergetik durch integrierte Gesamtplanungsleistungen und unter Berücksichtigung von Gebäudetechnik und Gebäudephysik.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Ritter XL Solarritter-xl-solar.de HQ: Dettenhausen, GermanyReported employees: 51-200 | Dettenhausen, Germany | 51-200 | Exact match | 28 contacts → |
“Ritter XL Solar steht für Hochleistungs-Solarthermie im Großformat.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Güntnerguntner.com HQ: Furstenfeldbruck, GermanyReported employees: 1,001-5,000 | Furstenfeldbruck, Germany | 1,001-5,000 | Exact match | 27 contacts → |
“SOLVE TOMORROW'S CHALLENGES TODAY At Güntner, we combine maximum precision in everyday life with a vision for the future in order to provide our partners with the best possible…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Inovis Ingenieure Gmbhinovis-ingenieure.de HQ: Hauptniederlassung München / Süd, GermanyReported employees: 51-200 | Hauptniederlassung München / Süd, Germany | 51-200 | Exact match | 27 contacts → |
“Über uns Unternehmensleitbild INOVIS IN(n)OVATION Wir sind ein Team hervorragend ausgebildeter und motivierter Ingenieure und Mitarbeiter.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Heat 11 Gmbh & Co. KGheat11.com HQ: Bielefeld, GermanyReported employees: 51-200 | Bielefeld, Germany | 51-200 | Exact match | 25 contacts → |
“Our commitment: Heat transfer in perfection!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 656 company matches
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Thermal energy system integrators: dataset insights
November 6, 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
594 records in the displayed employee bands.
62 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 656 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: November 6, 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 ↗
Thermal energy system integrators by metro
Questions about this company list
What does Exact match mean for thermal energy system integrators?
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 thermal energy system integrators did RevenueBase find based in Germany?
The saved snapshot records 656 matching company records, 4,830 tracked contacts and 1,699 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: November 6, 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
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- Thermal energy system integrators based in Sao Paulo, Brazil
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Cite this list
RevenueBase Data Team. Top 25 thermal energy system integrators based in Germany. Snapshot: November 6, 2026. https://revenuebase.ai/companies/thermal-energy-system-integrators/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
- Thermal energy system integrators based in Sao Paulo, Brazil
- Thermal energy system integrators based in Paris, France
- Thermal energy system integrators based in Berlin, Germany
- Thermal energy system integrators based in Milan, Italy
- Thermal energy system integrators based in Rome, Italy
- Thermal energy system integrators based in Madrid, Spain