Company lists · Data refreshed September 2026

Top 25 Commercial water system integrators based in Germany

Name: Commercial water system integrators based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 131 companies tracked

RevenueBase identified 131 commercial water system integrators headquartered in Germany as of September 2026 and tracks 589 professional contacts across them, including 135 with verified work emails. Berlin is the largest hub.

This list covers commercial water system integrators 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 19, 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 19, 2026 86% judged on-target in blind review

131Companies

589Contacts tracked

135Verified emails

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The 25 largest commercial water system integrators based in Germany

Ranked by team size

Top 25 of 131 commercial water system integrators based in Germany, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to commercial water system integrators: 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	BWT Wassertechnik Gmbh	Indirect evidence	Schriesheim, GermanyHQ checked Sep 19, 2026	201-500	115 contacts →
	Indirect evidence “Wasser ist nicht nur eine kostbare Lebensressource, sondern auch eine der großen Herausforderungen dieses Jahrhunderts.” Source: RevenueBase Database · checked Sep 19, 2026
2	WKS Technik Gmbh	Partial evidence	Dresden, GermanyHQ checked Sep 19, 2026	51-200	32 contacts →
	Partial evidence “W\|ASSER ist seit 30 Jahren unser Element: Wir entwickeln und bieten produkt- und systemübergreifende Lösungen auf dem Gebiet des Neubaus, der Rekonstruktion sowie der Optimierung…” Source: RevenueBase Database · checked Sep 19, 2026
3	Envirodts Gmbh	Indirect evidence	Friedberg (hessen), GermanyHQ checked Sep 19, 2026	51-200	29 contacts →
	Indirect evidence “Anlagenbau für Wasser- und Abwassertechnik Labore / Institute / Krankenhäuser und Industrie EnviroDTS ist spezialisiert auf die komplette Abwasseraufbereitung und…” Source: RevenueBase Database · checked Sep 19, 2026
4	Xylem Water Solutions Herford Gmbh	Indirect evidence	Herford, GermanyHQ checked Sep 19, 2026	11-50	19 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
5	Bevo Vertriebs Gmbh	Indirect evidence	Vlotho-exter, GermanyHQ checked Sep 19, 2026	11-50	14 contacts →
	Indirect evidence “Wasser gestalten.” Source: RevenueBase Database · checked Sep 19, 2026
6	Spirotech Dach	Indirect evidence	Düsseldorf, GermanyHQ checked Sep 19, 2026	201-500	9 contacts →
	Indirect evidence “Spirotech ist der vertrauenswürdige Experte für den Schutz, die Analyse und die Wasseraufbereitung von Heiz- und Kühlsystemen mit mehr als 60 Jahren Erfahrung.” Source: RevenueBase Database · checked Sep 19, 2026
7	Ernst Pertler Gmbh	Indirect evidence	Munich, GermanyHQ checked Sep 19, 2026	51-200	9 contacts →
	Indirect evidence “Seit unserer Gründung im Jahr 1984 durch Ernst Pertler haben wir uns zu einem der größten Münchner spezialisierten SHK Betriebe entwickelt.” Source: RevenueBase Database · checked Sep 19, 2026
8	HGZ Gebäudetechnik	Indirect evidence	Berlin, GermanyHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence “HGZ Gebäudetechnik Berlin is a construction company based out of 206 Marzahner Chaussee, Berlin, Germany.” Source: RevenueBase Database · checked Sep 19, 2026
9	Leyco Wassertechnik Gmbh	Partial evidence	Föritztal, GermanyHQ checked Sep 19, 2026	11-50	8 contacts →
	Partial evidence “The service portfolio ranges from the design, construction and maintenance of complete water treatment plants for industry and commerce to the sale of individual components of…” Source: RevenueBase Database · checked Sep 19, 2026
10	Aqua Plus Wasser- UND Recyclingsysteme Gmbh	Indirect evidence	Böbingen An Der Rems, GermanyHQ checked Sep 19, 2026	11-50	7 contacts →
	Indirect evidence “Die aqua plus Wasser- und Recyclingsysteme GmbH mit Sitz in Böbingen an der Rems (Deutschland) ist ein dynamisches, innovatives Unternehmen im Bereich industriellen Wasser- und…” Source: RevenueBase Database · checked Sep 19, 2026
11	Hydro-X Gmbh	Indirect evidence	Konstanz, GermanyHQ checked Sep 19, 2026	1-10	7 contacts →
	Indirect evidence “Hydro-X entwickelt Lösungen für die industrielle Wasseraufbereitung in Heizwasser, Kesselwasser- und Kühlsystemen.” Source: RevenueBase Database · checked Sep 19, 2026
12	Weil Wasseraufbereitung Gmbh	Indirect evidence	Osnabrück, GermanyHQ checked Sep 19, 2026	11-50	6 contacts →
	Indirect evidence “Die Weil Wasseraufbereitung GmbH entwickelt, plant und fertigt maßgeschneiderte Anlagen zur Erzeugung von Trinkwasser, Reinwasser und Reinstwasser sowie für die Aufbereitung von…” Source: RevenueBase Database · checked Sep 19, 2026
13	Hieber Installationen UND Handel AG	Indirect evidence	Weikersheim, GermanyHQ checked Sep 19, 2026	51-200	6 contacts →
	Indirect evidence “Hieber ist Ihr kompetenter Partner für angenehmes Raumklima und die gesamte Gebäudetechnik – ob Wohnhaus oder Großprojekt, Neubau oder Modernisierung.” Source: RevenueBase Database · checked Sep 19, 2026
14	Klar. Water Solutions	Indirect evidence	Maintal, GermanyHQ checked Sep 19, 2026	1-10	6 contacts →
	Indirect evidence “Klar.” Source: RevenueBase Database · checked Sep 19, 2026
15	WBG Wasserbaugesellschaft Anlagenbau MBH	Indirect evidence	Mainleus, GermanyHQ checked Sep 19, 2026	11-50	6 contacts →
	Indirect evidence “Die WBG ist ein Unternehmen mit Sitz in Mainleus, Deutschland.” Source: RevenueBase Database · checked Sep 19, 2026
16	UTP Umwelttechnik Pöhnl Gmbh	Strong evidence	Seybothenreuth, GermanyHQ checked Sep 19, 2026	11-50	6 contacts →
	Strong evidence “utp umwelttechnik specializes in developing and implementing innovative water and wastewater treatment systems for municipal and industrial applications.” Source: RevenueBase Database · checked Sep 19, 2026
17	Gross Wassertechnik Gmbh	Indirect evidence	Keltern, GermanyHQ checked Sep 19, 2026	11-50	5 contacts →
	Indirect evidence “Wir planen und bauen Anlagen für Wasseraufbereitung und Abwassertechnik in industriellen Anwendungen.” Source: RevenueBase Database · checked Sep 19, 2026
18	WTO Wassertechnik Ostbayern Gmbh	Partial evidence	Regensburg, GermanyHQ checked Sep 19, 2026	11-50	5 contacts →
	Partial evidence “Systemlösungen sowohl für Privathaushalte als auch für Gewerbe, Industrie und Kommunen garantieren mit unseren Wasseraufbereitungsanlagen beste Trinkwasserqualität.” Source: RevenueBase Database · checked Sep 19, 2026
19	Rebecca Filter Gmbh	Indirect evidence	Mannheim, GermanyHQ checked Sep 19, 2026	11-50	4 contacts →
	Indirect evidence “Eine klare Sache für Industrie, Gewerbe und Handel sowie für Bad, Küche, Schwimmbad und andere Bereiche im privaten Haushalt: Wasseraufbereitungssysteme plus kompetente Beratung…” Source: RevenueBase Database · checked Sep 19, 2026
20	Heinrich Krumme Gesellschaft FÜR Heizungs-, Klima- UND Sanitärtechnik MBH Brunsbüttel	Indirect evidence	Brunsbüttel, GermanyHQ checked Sep 19, 2026	51-200	4 contacts →
	Indirect evidence “Seit über 50 Jahren verbaut die HEINRICH KRUMME Gesellschaft für Heizungs, Klima- und Sanitärtechnik mbH energieeffiziente Haustechnik auf Großbaustellen im gesamten Bundesgebiet.” Source: RevenueBase Database · checked Sep 19, 2026
21	Aschenbrenner Wassertechnik Gmbh	Indirect evidence	Gräfelfing, GermanyHQ checked Sep 19, 2026	11-50	4 contacts →
	Indirect evidence “Aschenbrenner Wassertechnik GmbH is a company based out of Gräfelfing, Bavaria, Germany.” Source: RevenueBase Database · checked Sep 19, 2026
22	Z&h Wassertechnik Gmbh	Indirect evidence	St. Wendel, GermanyHQ checked Sep 19, 2026	11-50	4 contacts →
	Indirect evidence “Die Z&H Wassertechnik GmbH ist ein wachsendes Unternehmen aus dem Bereich der industriellen Wasseraufbereitung und Experte für Sonderlösungen.” Source: RevenueBase Database · checked Sep 19, 2026
23	SAB Gmbh Steuerungs- UND Anlagenbau	Indirect evidence	Nufringen, GermanyHQ checked Sep 19, 2026	51-200	4 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
24	Tricura	Partial evidence	Oldenburg, GermanyHQ checked Sep 19, 2026	11-50	3 contacts →
	Partial evidence “Als Systemanbieter rund um Wasserpflege & Reinigung, Technik & Schwimmbadausrüstung und Wellness tragen wir unsere Philosophie bereits im Firmennamen.” Source: RevenueBase Database · checked Sep 19, 2026
25	Küwa Haustechnik AG	Indirect evidence	Wagenhausen, GermanyHQ checked Sep 19, 2026	1-10	3 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 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: commercial water system integrators. 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 commercial water system integrators.
Partial evidence: Its own public description names part of commercial water system integrators, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name commercial water system integrators. 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 131 commercial water system integrators based in Germany

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Commercial water system integrators based in Germany at a glance

As of Sep 19, 2026

22.9%Verified-email coverage

4.5Average contacts per company

11-50Median size (employees)

5.3%Largest-city concentration · Berlin

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

10001+

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 131 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 commercial water system integrators, 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 “commercial water system integrators”. 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 commercial water system integrators), 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 commercial water system integrators, 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, 135 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 19, 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 commercial water system integrators, 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 commercial water system integrators are there based in Germany?

RevenueBase identified 131 commercial water system integrators 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?

BWT Wassertechnik Gmbh, headquartered in Schriesheim, tops this list with the largest team on record.

Which city has the most commercial water system integrators?

Berlin leads with 7 headquartered companies, followed by Mannheim (4) and Hamburg (3).

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 135 verified decision-maker contacts tracked across these 131 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 19, 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.