Company lists · Data refreshed September 2026

Top 25 Industrial water heater installers based in Germany

Name: Industrial water heater installers based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 632 companies tracked

RevenueBase identified 632 company matches for industrial water heater installers associated with Germany as of September 2026 and tracks 2,287 professional contacts across them, including 284 with verified work emails. Berlin is the largest hub.

This list covers company matches for industrial water heater 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 September 17, 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 Sep 17, 2026 How this list was built

632Companies

2,287Contacts tracked

284Verified emails

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The 25 largest industrial water heater installers based in Germany

Ranked by team size

Top 25 of 632 company matches for industrial water heater installers based in Germany, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Stiebel Eltron Group	Exact match	Holzminden, GermanyHQ recorded Sep 17, 2026	5,001-10,000	493 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 · Sep 17, 2026 · View company records in RevenueBase
2	Ness Wärmetechnik Gmbh	Exact match	Remshalden, GermanyHQ recorded Sep 17, 2026	51-200	42 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 · Sep 17, 2026 · View company records in RevenueBase
3	VKK Standardkessel Köthen Group	Exact match	Köthen, GermanyHQ recorded Sep 17, 2026	51-200	42 contacts →
	Exact match “Die VKK STANDARDKESSEL GROUP ist Ihr starker und erfahrener Partner im Bereich individuell gefertigter Kessel und Kesselservice.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Georg Hagelschuer	Exact match	Dülmen-buldern, GermanyHQ recorded Sep 17, 2026	51-200	25 contacts →
	Exact match “HAGELSCHUER offers everything to do with efficient steam and superheated water supply.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Aura Gmbh & CO KG	Exact match	Germersheim, GermanyHQ recorded Sep 17, 2026	51-200	23 contacts →
	Exact match “For over 40 years, Aura GmbH & Co.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Hans Schramm Gmbh	Exact match	Munich, GermanyHQ recorded Sep 17, 2026	51-200	21 contacts →
	Exact match “Plumbing, Heating and HVAC specialist in Munich and surrounding area.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Yanmar Energy System Europe Gmbh	Exact match	45768 Marl, GermanyHQ recorded Sep 17, 2026	n/a	18 contacts →
	Exact match “Wir sind Ihr zuverlässiger Komplettanbieter für Kälte, Lüftungs, Kühl- und Heizlösungen in Gewerbe und Industrie.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Wibau Haustechnik Gmbh	Exact match	Schwerin, GermanyHQ recorded Sep 17, 2026	11-50	14 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Sailer Gmbh Ehingen	Exact match	Ehingen-donau, GermanyHQ recorded Sep 17, 2026	11-50	10 contacts →
	Exact match “Energieeffiziente Warmwasser-Systeme” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Magnetic Gmbh & Co. KG	Exact match	Untermünkheim, GermanyHQ recorded Sep 17, 2026	11-50	10 contacts →
	Exact match “We turn HVAC and water treatment professionals into experts in heating water quality.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	H. Maurer Gmbh & Co. KG	Exact match	Schramberg, GermanyHQ recorded Sep 17, 2026	51-200	9 contacts →
	Exact match “Heizung - Klima - Sanitär” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Ernst Pertler Gmbh	Exact match	Munich, GermanyHQ recorded Sep 17, 2026	51-200	9 contacts →
	Exact match “Seit unserer Gründung im Jahr 1984 durch Ernst Pertler haben wir uns zu einem der größten Münchner spezialisierten SHK Betriebe entwickelt.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	HGZ Gebäudetechnik	Exact match	Berlin, GermanyHQ recorded Sep 17, 2026	11-50	8 contacts →
	Exact match “HGZ Gebäudetechnik Berlin is a construction company based out of 206 Marzahner Chaussee, Berlin, Germany.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	IWT Jordan Gmbh	Exact match	Elsfleth, GermanyHQ recorded Sep 17, 2026	11-50	8 contacts →
	Exact match “DAMPFKESSELANLAGEN: PLANEN.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Hydro-X Gmbh	Exact match	Konstanz, GermanyHQ recorded Sep 17, 2026	1-10	7 contacts →
	Exact match “Hydro-X entwickelt Lösungen für die industrielle Wasseraufbereitung in Heizwasser, Kesselwasser- und Kühlsystemen.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Klimatechnik Wagner Gmbh	Exact match	Neusäß, GermanyHQ recorded Sep 17, 2026	51-200	7 contacts →
	Exact match “Klimatechnik Wagner GmbH is a company based out of 8 Daimlerstraße, Neusäß, Germany.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Kolb Anlagenbau Gmbh	Exact match	Kerpen, GermanyHQ recorded Sep 17, 2026	11-50	7 contacts →
	Exact match “We are your competent partner for the planning, manufacture and maintenance of steam, hot water and thermal oil boiler systems with an output of 500 kW to 50 MW per boiler.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Wbmax Gmbh	Exact match	Frankfurt, GermanyHQ recorded Sep 17, 2026	51-200	7 contacts →
	Exact match “Wbmax GmbH delivers reliable and efficient heating, ventilation, plumbing, and electrical solutions to ensure comfortable, safe, and efficient spaces.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Gassner Gmbh	Exact match	Kempten, GermanyHQ recorded Sep 17, 2026	11-50	7 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Dzh-Schepitz Gmbh	Exact match	Dresden, GermanyHQ recorded Sep 17, 2026	51-200	6 contacts →
	Exact match “DZH-Schepitz GmbH is a construction company based out of 37 Schlüterstr, Dresden, Germany.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Hieber Installationen UND Handel AG	Exact match	Weikersheim, GermanyHQ recorded Sep 17, 2026	51-200	6 contacts →
	Exact match “Hieber ist Ihr kompetenter Partner für angenehmes Raumklima und die gesamte Gebäudetechnik – ob Wohnhaus oder Großprojekt, Neubau oder Modernisierung.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Maier Heiztechnik Gmbh	Exact match	Köngen, GermanyHQ recorded Sep 17, 2026	51-200	6 contacts →
	Exact match “Maier Heiztechnik GmbH – Gebäudetechnik mit Verantwortung.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Planwerk S Gmbh	Exact match	Weiterstadt, GermanyHQ recorded Sep 17, 2026	1-10	5 contacts →
	Exact match “Es häufen sich Wasserschäden, Sie haben Probleme mit der Trinkwasserversorgung oder mit der Hygiene etwa durch Belastung mit Legionellen?” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	GTH Gebäude Technik Hamburg Gmbh & Co. KG	Exact match	Hamburg, GermanyHQ recorded Sep 17, 2026	11-50	5 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Geerkens Sanitär UND Heizung Gmbh	Exact match	Rheinberg, GermanyHQ recorded Sep 17, 2026	11-50	5 contacts →
	Exact match “Als langjähriger Innungsfachbetrieb des Sanitär, Heizungs- und Klimahandwerks unterstützen wir Ihre Wünsche in den Fachbereichen Bäder, Wärme und erneuerbare Energien mit…” Recorded in the RevenueBase company graph · Sep 17, 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 “industrial water heater installers”. 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 632 industrial water heater installers based in Germany

See the full list, filter by size, metro and specialty, and access 284 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Industrial water heater installers based in Germany at a glance

As of Sep 17, 2026

12.4%Verified-email coverage

3.6Average contacts per company

1-10Median size (employees)

4.0%Largest-city concentration · Berlin

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

344

11-50

128

51-200

201-500

501-1,000

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 632 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 “industrial water heater 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 284 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 September 17, 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.

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 “industrial water heater installers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many industrial water heater installers are there based in Germany?

RevenueBase identified 632 company matches for industrial water heater installers associated with Germany as of September 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 industrial water heater installers?

Berlin leads with 25 company records, followed by Hamburg (11) and Frankfurt (11).

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 284 professional contacts with verified work emails tracked across these 632 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 September 17, 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.