Company lists · Data refreshed September 2026

Top 25 Thermal fluid system manufacturers based in Germany

Name: Thermal fluid system manufacturers based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 192 companies tracked

RevenueBase identified 192 thermal fluid system manufacturers headquartered in Germany as of September 2026 and tracks 6,013 professional contacts across them, including 1,849 with verified work emails. Berlin is the largest hub.

This list covers thermal fluid system manufacturers headquartered in Germany, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 30, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 30, 2026 86% judged on-target in blind review

192Companies

6,013Contacts tracked

1,849Verified emails

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The 25 largest thermal fluid system manufacturers based in Germany

Ranked by team size

Top 25 of 192 thermal fluid system manufacturers based in Germany, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to thermal fluid system manufacturers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Kelvion	Indirect evidence	Herne, GermanyHQ checked Sep 30, 2026	5,001-10,000	2,005 contacts →
	Indirect evidence “Welcome to Kelvion!” Source: RevenueBase Database · checked Sep 30, 2026
2	Gestra	Indirect evidence	Bremen, GermanyHQ checked Sep 30, 2026	201-500	160 contacts →
	Indirect evidence “Delivering the results you need is our top priority.” Source: RevenueBase Database · checked Sep 30, 2026
3	Buderus Deutschland	Partial evidence	Wetzlar, GermanyHQ checked Sep 30, 2026	1,001-5,000	143 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 30, 2026
4	Kti-Plersch Kältetechnik Gmbh	Indirect evidence	Balzheim, GermanyHQ checked Sep 30, 2026	51-200	89 contacts →
	Indirect evidence “Worldwide # 1 in turnkey cooling and heating solutions!” Source: RevenueBase Database · checked Sep 30, 2026
5	Funke Wärmeaustauscher Apparatebau Gmbh	Indirect evidence	Gronau (leine), GermanyHQ checked Sep 30, 2026	201-500	75 contacts →
	Indirect evidence “Funke Wärmeaustauscher Apparatebau GmbH is a machinery company based out of Zur Deßel 1, Gronau (Leine), Niedersachsen, Germany.” Source: RevenueBase Database · checked Sep 30, 2026
6	Friotherm Deutschland Gmbh	Indirect evidence	Weissensberg, GermanyHQ checked Sep 30, 2026	51-200	48 contacts →
	Indirect evidence “Friotherm - Ihr Partner für zuverlässige Wärmepumpen und Flüssigkeitskühlaggregate.” Source: RevenueBase Database · checked Sep 30, 2026
7	Güntner	Indirect evidence	Furstenfeldbruck, GermanyHQ checked Sep 30, 2026	1,001-5,000	45 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 30, 2026
8	L&r Kältetechnik Gmbh & Co.Kg	Indirect evidence	Sundern, GermanyHQ checked Sep 30, 2026	51-200	42 contacts →
	Indirect evidence “Die L&R Kältetechnik GmbH & Co.” Source: RevenueBase Database · checked Sep 30, 2026
9	Ness Wärmetechnik Gmbh	Partial evidence	Remshalden, GermanyHQ checked Sep 30, 2026	51-200	42 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 30, 2026
10	Hyfra Industriekühlanlagen Gmbh	Indirect evidence	Krunkel, GermanyHQ checked Sep 30, 2026	201-500	41 contacts →
	Indirect evidence “HYFRA is an experienced specialist in customized process cooling with more than 40 years of expertise in industrial cooling technology.” Source: RevenueBase Database · checked Sep 30, 2026
11	Rosink-Werkstätten Gmbh	Indirect evidence	Nordhorn, GermanyHQ checked Sep 30, 2026	51-200	41 contacts →
	Indirect evidence “Rosink-Werkstätten GmbH - weltweit erfolgreich Rosink-Werkstätten entwickelt und produziert seit 1980 Wärmetauscher und Wärmerückgewinnungsanlagen für den weltweiten Einsatz in…” Source: RevenueBase Database · checked Sep 30, 2026
12	API Schmidt-Bretten Gmbh & Co. KG	Indirect evidence	Bretten, GermanyHQ checked Sep 30, 2026	51-200	41 contacts →
	Indirect evidence “Our products are well-known for their innovative designs and exceptional quality.” Source: RevenueBase Database · checked Sep 30, 2026
13	Tlk-Thermo Gmbh	Partial evidence	Braunschweig, GermanyHQ checked Sep 30, 2026	51-200	39 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 30, 2026
14	Cabero	Partial evidence	Moorenweis, GermanyHQ checked Sep 30, 2026	1,001-5,000	38 contacts →
	Partial evidence “CABERO is a leading manufacturer of heat exchangers for refrigeration and air-conditioning technology with its head office in Moorenweis near Munich.” Source: RevenueBase Database · checked Sep 30, 2026
15	AKG Thermotechnik International	Partial evidence	Hofgeismar, GermanyHQ checked Sep 30, 2026	1,001-5,000	35 contacts →
	Partial evidence “Manufacturer of coolers and heat exchangers worldwide Development and production of high-performance heat exchangers and complete cooling modules for application in construction…” Source: RevenueBase Database · checked Sep 30, 2026
16	Universal Hydraulik Gmbh	Partial evidence	Neu Anspach, GermanyHQ checked Sep 30, 2026	51-200	34 contacts →
	Partial evidence “Innovative and customer oriented systems dictate tomorrow’s market.” Source: RevenueBase Database · checked Sep 30, 2026
17	PAW Gmbh & Co. KG	Indirect evidence	Hameln, GermanyHQ checked Sep 30, 2026	51-200	28 contacts →
	Indirect evidence “Seit über 55 Jahren arbeiten wir an intelligenten und maßgeschneiderten Lösungen für unsere Kunden, die optimal die Kundenbedürfnisse erfüllen.” Source: RevenueBase Database · checked Sep 30, 2026
18	KKT Chillers	Indirect evidence	Kasendorf, GermanyHQ checked Sep 30, 2026	201-500	27 contacts →
	Indirect evidence “Originating from the KKT Kraus Company, the current KKT chillers brand is an important pillar within ait-deutschland GmbH.” Source: RevenueBase Database · checked Sep 30, 2026
19	Aura Gmbh & CO KG	Indirect evidence	Germersheim, GermanyHQ checked Sep 30, 2026	51-200	23 contacts →
	Indirect evidence “For over 40 years, Aura GmbH & Co.” Source: RevenueBase Database · checked Sep 30, 2026
20	Baelz W. Baelz & Sohn Gmbh & CO	Partial evidence	Heilbronn, GermanyHQ checked Sep 30, 2026	51-200	23 contacts →
	Partial evidence “Baelz ist mit seinen intelligenten Komponenten und energiesparenden Systemlösungen im Bereich des Wärme-und Kältetransfers (Dampf, Heißöl, Heißwasser) international im Markt aktiv.” Source: RevenueBase Database · checked Sep 30, 2026
21	Anlagenbau Neundörfer Gmbh	Indirect evidence	Langensendelbach, GermanyHQ checked Sep 30, 2026	11-50	22 contacts →
	Indirect evidence “Die Firma Neundörfer entwickelt und fertigt Kühlanlagen, Kühlsysteme, Pumpensysteme, Wärmetauscher und alle Produkte rund um Edelstahl-Rohrleitungsbau.” Source: RevenueBase Database · checked Sep 30, 2026
22	Schrader Verfahrenstechnik Gmbh	Strong evidence	Ennigerloh, GermanyHQ checked Sep 30, 2026	201-500	22 contacts →
	Strong evidence “SCHRADER manufactures individual and highly specialized systems according to individual specifications.” Source: RevenueBase Database · checked Sep 30, 2026
23	Gesellschaft FÜR Oeltechnik MBH	Indirect evidence	Waghäusel, GermanyHQ checked Sep 30, 2026	51-200	21 contacts →
	Indirect evidence “The Gesellschaft für OELTECHNIK develops and produces apparatus for process technology for the world market.” Source: RevenueBase Database · checked Sep 30, 2026
24	Heat 11 Gmbh & Co. KG	Indirect evidence	Bielefeld, GermanyHQ checked Sep 30, 2026	51-200	21 contacts →
	Indirect evidence “Our commitment: Heat transfer in perfection!” Source: RevenueBase Database · checked Sep 30, 2026
25	Noxmat Gmbh	Strong evidence	Oederan, GermanyHQ checked Sep 30, 2026	11-50	21 contacts →
	Strong evidence “NOXMAT: This is us We are experts in industrial heating technology and develop, design, manufacture and distribute industrial gas burners as well as electric heating systems for…” Source: RevenueBase Database · checked Sep 30, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: thermal fluid system manufacturers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names thermal fluid system manufacturers.
Partial evidence: Its own public description names part of thermal fluid system manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name thermal fluid system manufacturers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 192 thermal fluid system manufacturers based in Germany

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Thermal fluid system manufacturers based in Germany at a glance

As of Sep 30, 2026

30.8%Verified-email coverage

31.3Average contacts per company

11-50Median size (employees)

2.6%Largest-city concentration · Berlin

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 192 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among thermal fluid system manufacturers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Germany whose own description of what they do matches “thermal fluid system manufacturers”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names thermal fluid system manufacturers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among thermal fluid system manufacturers, and records with no verified work email. Companies headquartered outside Germany are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 1,849 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 30, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names thermal fluid system manufacturers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

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

RevenueBase identified 192 thermal fluid system manufacturers headquartered in Germany as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Kelvion, headquartered in Herne, tops this list with the largest team on record.

Which city has the most thermal fluid system manufacturers?

Berlin leads with 5 headquartered companies, followed by Bochum (4) and Dortmund (4).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,849 verified decision-maker contacts tracked across these 192 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 30, 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 Smart Search, 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.