Company lists · Data refreshed November 2026

Top 25 Renewable heating system installers based in Germany

RevenueBase identified 921 company matches for renewable heating system installers associated with Germany as of November 2026 and tracks 4,646 professional contacts across them, including 1,117 with verified work emails. Berlin is the largest hub.

This list covers company matches for renewable heating 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 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
921Companies
4,646Contacts tracked
1,117Verified emails
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The 25 largest renewable heating system installers based in Germany

Ranked by team size
Top 25 of 921 company matches for renewable heating system installers based in Germany, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchHolzminden, GermanyHQ recorded Nov 6, 20265,001-10,000509 contacts →

Exact match

“STIEBEL ELTRON bietet hocheffiziente Produkte und Dienstleistungen für die Heizung, Kühlung, Lüftung und Warmwasserbereitung von Gebäuden.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchSteinhagen, GermanyHQ recorded Nov 6, 2026201-500188 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 · Nov 6, 2026 · View company records in RevenueBase
3Exact matchWetzlar, GermanyHQ recorded Nov 6, 20261,001-5,000147 contacts →

Exact match

“Die Marke Buderus ist Teil der Bosch Thermotechnik GmbH und steht seit 1731 für Spitzenprodukte im Bereich Heizsysteme Ob regenerativ oder klassisch betrieben – unsere Heizsysteme…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchBerlin, GermanyHQ recorded Nov 6, 202651-200140 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 · Nov 6, 2026 · View company records in RevenueBase
5Exact matchRastede, GermanyHQ recorded Nov 6, 2026201-500117 contacts →

Exact match

“BRÖTJE efficient heating system technology.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchElsterheide, GermanyHQ recorded Nov 6, 2026201-500106 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
7Exact matchCologne, GermanyHQ recorded Nov 6, 202651-200104 contacts →

Exact match

“Wir bei Vamo haben es uns zur Mission gemacht grünes, günstiges Heizen mit Wärmepumpen unkompliziert und für jedermann möglich sowie bezahlbar zu machen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchKasendorf, GermanyHQ recorded Nov 6, 20261,001-5,000100 contacts →

Exact match

“Die Wärmepumpe ist unsere DNA 🧬 Unsere Vision ist ein ideales Morgen - unabhängig von fossilen Energiequellen Werde auch du Teil der ait Seit 1998 tragen wir mit…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBraunschweig, GermanyHQ recorded Nov 6, 2026201-50076 contacts →

Exact match

“Wer wir sind und was wir machen Wir sind ein mittelständischer Heizungshersteller aus Braunschweig und haben es uns zur Aufgabe gemacht, dem Löwenanteil des Energieverbrauchs im…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBerlin, GermanyHQ recorded Nov 6, 202611-5074 contacts →

Exact match

“Accelerating the transition to low carbon homes by building the leading heat pump OS for HVAC installers”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchMemmingen, GermanyHQ recorded Nov 6, 202651-20056 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 · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSalzhausen, GermanyHQ recorded Nov 6, 202651-20046 contacts →

Exact match

“Die heimWatt GmbH ist einer der führenden und innovativsten Anbieter für Wärmepumpen, Photovoltaikanlagen und Energiemanagement in Norddeutschland.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchErkelenz, GermanyHQ recorded Nov 6, 202651-20042 contacts →

Exact match

“Willkommen bei Planville – wo Innovation auf Nachhaltigkeit trifft.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSaerbeck, GermanyHQ recorded Nov 6, 202651-20038 contacts →

Exact match

“Mit smarten Qualitätsprodukten, persönlichem Service und exakt passenden Lösungen bringen wir genau das richtige Maß an Wärme zu unseren Kunden.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBremen, GermanyHQ recorded Nov 6, 202651-20037 contacts →

Exact match

“Die ADLER Solar GmbH aus Bremen plant, baut und installiert Energielösungen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchKaufbeuren, GermanyHQ recorded Nov 6, 202651-20034 contacts →

Exact match

“varmeco ist seit 1983 Pionier für rationelle und regenerative Heizungssystemtechnik mit hygienischer Trinkwarmwasserbereitung.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchHilpoltstein, GermanyHQ recorded Nov 6, 202651-20031 contacts →

Exact match

“ENERPIPE GmbH steht für innovative, energiesparende Wärmesysteme, die für die Energiewende viele Vorteile bieten.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchSchriesheim, GermanyHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“Rocke die Zukunft mit REINSTEM HEIZEN Steige mit uns auf eine moderne Heizlösung um, die nicht nur umweltfreundlich, sondern auch zukunftssicher ist.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMunich, GermanyHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“nuuEnergy unterstützt Sie dabei, Ihre Heiztechnik klimafreundlich und zukunftssicher zu machen – mit moderner Wärmepumpentechnologie.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchHamburg, GermanyHQ recorded Nov 6, 202651-20025 contacts →

Exact match

“Muss klimafreundliches Heizen kompliziert sein?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchCologne, GermanyHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“We are Triple Solar.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchGräfelfing, GermanyHQ recorded Nov 6, 202611-5021 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 · Nov 6, 2026 · View company records in RevenueBase
23Exact matchHamburg, GermanyHQ recorded Nov 6, 202611-5019 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 · Nov 6, 2026 · View company records in RevenueBase
24Exact matchRhauderfehn, GermanyHQ recorded Nov 6, 202651-20016 contacts →

Exact match

“Natelberg Gebäudetechnik steht seit über 40 Jahren für moderne, zuverlässige und ganzheitliche Lösungen rund um die Gebäudetechnik.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchKulmbach, GermanyHQ recorded Nov 6, 2026501-1,00015 contacts →

Exact match

“Sie suchen nachhaltige Lösungen zum Heizen, Kühlen, Lüften, zur Warmwasserbereitung oder Wärmerückgewinnung für Ihr Wohngebäude oder Ihre Gewerbeimmobilie?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 921 renewable heating system installers based in Germany

See the full list, filter by size, metro and specialty, and access 1,117 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Renewable heating system installers based in Germany at a glance

As of Nov 6, 2026
24.0%Verified-email coverage
5.0Average contacts per company
1-10Median size (employees)
4.0%Largest-city concentration · Berlin
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
428
11-50
210
51-200
79
201-500
9
501-1,000
2
1,001-5,000
3
5,001-10,000
1

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 921 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 “renewable heating 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 1,117 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.

Renewable heating system installers 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 “renewable heating system installers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many renewable heating system installers are there based in Germany?

RevenueBase identified 921 company matches for renewable heating system installers 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?

Stiebel Eltron Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most renewable heating system installers?

Berlin leads with 37 company records, followed by Hamburg (19) and Cologne (12).

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 1,117 professional contacts with verified work emails tracked across these 921 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.

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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.