Company lists · Data refreshed November 2026

Top 25 Solar thermal systems integrators based in Germany

RevenueBase identified 794 company matches for solar thermal systems integrators associated with Germany as of November 2026 and tracks 5,867 professional contacts across them, including 2,285 with verified work emails. Berlin is the largest hub.

This list covers company matches for solar thermal systems 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 5, 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 5, 2026 How this list was built
794Companies
5,867Contacts tracked
2,285Verified emails
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The 25 largest solar thermal systems integrators based in Germany

Ranked by team size
Top 25 of 794 company matches for solar thermal systems integrators based in Germany, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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 matchMainburg, GermanyHQ recorded Nov 5, 20261,001-5,000506 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 5, 2026 · View company records in RevenueBase
2Exact matchHirschberg An Der Bergstraße, GermanyHQ recorded Nov 5, 2026501-1,000387 contacts →

Exact match

“GOLDBECK SOLAR is an internationally leading company specializing in the turnkey construction of industrial, commercial, and large‑scale photovoltaic systems.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchWeil Der Stadt / Hausen, GermanyHQ recorded Nov 5, 20261,001-5,000247 contacts →

Exact match

“Since 1995, Krannich Solar has been a strong partner for photovoltaic installers and offers everything that drives the energy revolution: sound advice, effective logistics and one…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchSteinhagen, GermanyHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
5Exact matchBerlin, GermanyHQ recorded Nov 5, 202651-200159 contacts →

Exact match

“Reonic enables renewable energy installers to sell, design and install systems better and faster than ever before.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchMunich, GermanyHQ recorded Nov 5, 2026201-500151 contacts →

Exact match

“Zusammen mit unseren starken Partnern und der neusten Technologie gestalten wir die Energiezukunft.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchWetzlar, GermanyHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
8Exact matchBerlin, GermanyHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
9Exact matchElsterheide, GermanyHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
10Exact matchBraunschweig, GermanyHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
11Exact matchBaesweiler, GermanyHQ recorded Nov 5, 202651-20069 contacts →

Exact match

“Innovative solar solutions for the sustainable future of your company.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchMuelheim An Der Ruhr, GermanyHQ recorded Nov 5, 202651-20059 contacts →

Exact match

“Elen is a company specializing in offering design services for solar energy solutions, energy storage, electrical installation, technical advice, and solutions in energy…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchBerlin, GermanyHQ recorded Nov 5, 202611-5038 contacts →

Exact match

“Ökonomisch denken – ökologisch handeln ist unser Leitbild; nachhaltig Energie produzieren, unser Ziel.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchMeschede, GermanyHQ recorded Nov 5, 202651-20038 contacts →

Exact match

“Wir sind Dein zuverlässiger Partner für schlüsselfertige Photovoltaik-Anlagen in allen Größen!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchBremen, GermanyHQ recorded Nov 5, 202651-20037 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchRavensburg, GermanyHQ recorded Nov 5, 202651-20036 contacts →

Exact match

“Seit 2009 entwickeln wir nachhaltige Energielösungen mit dem Anspruch, Innovation, Wirtschaftlichkeit und Zukunftsfähigkeit miteinander zu verbinden.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchHanover, GermanyHQ recorded Nov 5, 202651-20035 contacts →

Exact match

“Unsere Kompetenz und Erfahrung im Bau und Betrieb von PV-Anlagen haben wir seit 2019 in der enercity Solution GmbH gebündelt.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchCologne, GermanyHQ recorded Nov 5, 202611-5034 contacts →

Exact match

“Renusol Europe GmbH has specialised in sophisticated solutions for the installation of photovoltaic systems for over 20 years.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchKaufbeuren, GermanyHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
20Exact matchWaltershausen, GermanyHQ recorded Nov 5, 202651-20031 contacts →

Exact match

“maxx-solar & energie, your specialist for photovoltaic plants in Central Germany Since foundation of maxx-solar in 2008, we have become specialist in solar energy production for…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchHilpoltstein, GermanyHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
22Exact matchKarlstein Am Main, GermanyHQ recorded Nov 5, 202651-20030 contacts →

Exact match

“Densys pv5 ist seit dem Jahr starker und zuverlässiger Partner des Photovoltaikhandwerks.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchOttersberg, GermanyHQ recorded Nov 5, 202611-5028 contacts →

Exact match

“Wir befreien Unternehmen von hohen Energiekosten.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchHameln, GermanyHQ recorded Nov 5, 202651-20028 contacts →

Exact match

“Datenschutzerklärung und Impressum können Sie unter "Kontakt" aufrufen -– Seit über 60 Jahren arbeiten wir an intelligenten und maßgeschneiderten Lösungen für unsere Kunden, die…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchSpeyer, GermanyHQ recorded Nov 5, 202651-20028 contacts →

Exact match

“Strom ist die Energieform der Zukunft - Ihre Photovoltaikanlage von soNachhaltig wird sie begeistern!”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 794 solar thermal systems integrators based in Germany

See the full list, filter by size, metro and specialty, and access 2,285 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Solar thermal systems integrators based in Germany at a glance

As of Nov 5, 2026
38.9%Verified-email coverage
7.4Average contacts per company
1-10Median size (employees)
5.3%Largest-city concentration · Berlin
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
368
11-50
236
51-200
82
201-500
8
501-1,000
2
1,001-5,000
4

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 794 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 “solar thermal systems 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 2,285 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 5, 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.

Solar thermal systems 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 “solar thermal systems integrators”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many solar thermal systems integrators are there based in Germany?

RevenueBase identified 794 company matches for solar thermal systems 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 solar thermal systems integrators?

Berlin leads with 42 company records, followed by Munich (16) and Hamburg (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 2,285 professional contacts with verified work emails tracked across these 794 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 5, 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.