Company lists · Data refreshed November 2026

Top 24 Thermal energy system manufacturers based in Germany

RevenueBase identified 638 company matches for thermal energy system manufacturers associated with Germany as of November 2026 and tracks 26,719 professional contacts across them, including 8,384 with verified work emails. Berlin is the largest hub.

This list covers company matches for thermal energy system manufacturers 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
638Companies
26,719Contacts tracked
8,384Verified emails
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The 24 largest thermal energy system manufacturers based in Germany

Ranked by team size
Top 24 of 638 company matches for thermal energy system manufacturers 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 matchRemscheid, GermanyHQ recorded Nov 6, 202610001+3,278 contacts →

Exact match

“Our corporate vision shapes everything we do and inspires our employees every day.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchAllendorf, GermanyHQ recorded Nov 6, 202610001+2,339 contacts →

Exact match

“Founded in 1917 as a heating technology manufacturer, today Viessmann Climate Solutions is a leading global provider of sustainable climate (heating, cooling, water and air…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchHerne, GermanyHQ recorded Nov 6, 20265,001-10,0002,321 contacts →

Exact match

“Welcome to Kelvion!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact 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
5Exact matchMainburg, GermanyHQ recorded Nov 6, 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 6, 2026 · View company records in RevenueBase
6Exact matchUnterhaching, GermanyHQ recorded Nov 6, 2026501-1,000273 contacts →

Exact match

“DAIKIN ist weltweit führender Hersteller von Wärmepumpen, Lüftungs- und Klimatisierungssystemen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSchwendi, GermanyHQ recorded Nov 6, 20261,001-5,000192 contacts →

Exact match

“Das Unternehmen Weishaupt im oberschwäbischen Schwendi steht für langlebige, sparsame und zuverlässige Energietechnik auf einem hohen technischen Niveau.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchKulmbach, GermanyHQ recorded Nov 6, 2026501-1,000175 contacts →

Exact match

“Glen Dimplex Deutschland (GDD) is part of the international Glen Dimplex Group based in Ireland - a leading international supplier of electric heating solutions and domestic…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact 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
10Exact 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
11Exact 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
12Exact matchSalzgitter, GermanyHQ recorded Nov 6, 202651-200102 contacts →

Exact match

“Imprint: Möhlenhoff GmbH is one of the most innovative companies in the heating, ventilation and air conditioning industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchHamburg, GermanyHQ recorded Nov 6, 2026201-50081 contacts →

Exact match

“Die Frigotechnik Handels-GmbH ist seit 1928 eines der führenden Großhandelsunternehmen für Kälte- und Klimatechnik mit Sitz in Hamburg.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchLindlar, GermanyHQ recorded Nov 6, 2026201-50080 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
15Exact 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
16Exact matchGronau (leine), GermanyHQ recorded Nov 6, 2026201-50075 contacts →

Exact match

“Funke Wärmeaustauscher Apparatebau GmbH is a machinery company based out of Zur Deßel 1, Gronau (Leine), Niedersachsen, Germany.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchGermanyHQ recorded Nov 6, 2026501-1,00068 contacts →

Exact match

“DKA - Ihr Spezialist für kälte- und klimatechnische Anlagen seit 1953 Dresdner Kühlanlagenbau GmbH (DKA) ist mit über 500 Mitarbeiterinnen und Mitarbeitern der größte…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchSchwalmstadt, GermanyHQ recorded Nov 6, 2026201-50066 contacts →

Exact match

“Die Konvekta AG ist ein weltweit agierender Hersteller von innovativen und zukunftsweisenden Thermomanagement Systemen für Nutzfahrzeuge wie Busse, Bau- und Landmaschinen sowie…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchDautphetal, GermanyHQ recorded Nov 6, 2026201-50058 contacts →

Exact match

“Roth ist ein international tätiger Hersteller von Energie- und Sanitärsystemen mit weltweiten Niederlassungen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchAichtal, GermanyHQ recorded Nov 6, 2026201-50058 contacts →

Exact match

“ARNOLD Group is your competent partner for innovative insulation systems and mechanical service solutions for industrial production facilities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchCologne, GermanyHQ recorded Nov 6, 2026201-50053 contacts →

Exact match

“Vor mehr als 90 Jahren hat unser Firmengründer Günther Schwank den ersten Gas-Infrarot-Hellstrahler erfunden.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchNordhorn, GermanyHQ recorded Nov 6, 202651-20045 contacts →

Exact match

“Rosink-Werkstätten GmbH - weltweit erfolgreich Rosink-Werkstätten entwickelt und produziert seit 1980 Wärmetauscher und Wärmerückgewinnungsanlagen für den weltweiten Einsatz in…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchRemshalden, GermanyHQ recorded Nov 6, 202651-20044 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
24Exact matchGießen, GermanyHQ recorded Nov 6, 202651-20043 contacts →

Exact match

“Seit unserer Gründung haben wir es uns zum Ziel gesetzt, für wohlige Wärme in deutschen Immobilien zu sorgen.”

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

Showing 24 of 638 thermal energy system manufacturers based in Germany

See the full list, filter by size, metro and specialty, and access 8,384 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Thermal energy system manufacturers based in Germany at a glance

As of Nov 6, 2026
31.4%Verified-email coverage
41.9Average contacts per company
11-50Median size (employees)
4.1%Largest-city concentration · Berlin
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
231
11-50
172
51-200
124
201-500
23
501-1,000
9
1,001-5,000
11
5,001-10,000
6
10001+
5

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 638 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 manufacturers” 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 8,384 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 manufacturers 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 manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many thermal energy system manufacturers are there based in Germany?

RevenueBase identified 638 company matches for thermal energy system manufacturers 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?

Vaillant Group 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 manufacturers?

Berlin leads with 26 company records, followed by Hamburg (13) and Frankfurt (9).

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 8,384 professional contacts with verified work emails tracked across these 638 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.