Company lists · Data refreshed September 2026

Top 25 Industrial water treatment based in Germany

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

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 424 companies tracked

RevenueBase identified 424 industrial water treatment headquartered in Germany as of September 2026 and tracks 5,275 professional contacts across them, including 1,905 with verified work emails. Berlin is the largest hub.

This list covers industrial water treatment 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 17, 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 17, 2026 86% judged on-target in blind review

424Companies

5,275Contacts tracked

1,905Verified emails

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The 25 largest industrial water treatment based in Germany

Ranked by team size

Top 25 of 424 industrial water treatment based in Germany, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to industrial water treatment: 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	WTE Wassertechnik Gmbh	Indirect evidence	E, GermanyHQ checked Sep 17, 2026	501-1,000	242 contacts →
	Indirect evidence “Optimierung.” Source: RevenueBase Database · checked Sep 17, 2026
2	DAS Environmental Expert Gmbh	Partial evidence	Dresden, GermanyHQ checked Sep 17, 2026	501-1,000	203 contacts →
	Partial evidence “DAS Environmental Experts is a leading environmental technology company with resource-saving and sustainable solutions for process exhaust gas and wastewater treatment.” Source: RevenueBase Database · checked Sep 17, 2026
3	Grünbeck AG	Indirect evidence	Höchstädt, GermanyHQ checked Sep 17, 2026	501-1,000	157 contacts →
	Indirect evidence “Know-how seit über 75 Jahren: Die Grünbeck AG bietet sowohl bewährte als auch innovative Produkte zur Trinkwasseraufbereitung im Bereich Enthärtungs, Filter- und Dosiertechnik…” Source: RevenueBase Database · checked Sep 17, 2026
4	Aqseptence Group	Partial evidence	Aarbergen, GermanyHQ checked Sep 17, 2026	1,001-5,000	153 contacts →
	Partial evidence “Water is becoming one of the defining challenges of our century.” Source: RevenueBase Database · checked Sep 17, 2026
5	Envirochemie Gmbh	Strong evidence	Rossdorf, GermanyHQ checked Sep 17, 2026	1,001-5,000	146 contacts →
	Strong evidence “EnviroChemie is a system provider for holistic industrial water management.” Source: RevenueBase Database · checked Sep 17, 2026
6	Passavant Energy & Environment	Indirect evidence	Frankfurt, GermanyHQ checked Sep 17, 2026	51-200	134 contacts →
	Indirect evidence “Passavant has always been a name synonymous with excellence of execution through innovation.” Source: RevenueBase Database · checked Sep 17, 2026
7	Culligan Deutschland	Indirect evidence	Neuss, GermanyHQ checked Sep 17, 2026	201-500	130 contacts →
	Indirect evidence “Qualitativ hochwertiges Trinkwasser ist ein unschätzbares Gut.” Source: RevenueBase Database · checked Sep 17, 2026
8	BWT Wassertechnik Gmbh	Indirect evidence	Schriesheim, GermanyHQ checked Sep 17, 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 17, 2026
9	PWT Wasser- UND Abwassertechnik Gmbh	Indirect evidence	Zwingenberg, GermanyHQ checked Sep 17, 2026	51-200	113 contacts →
	Indirect evidence “We from PWT Wasser- und Abwassertechnik GmbH with headquarter in Zwingenberg Germany (Close to Frankfurt am Main, Mannheim and Darmstadt) are speacialized as turnkey supplier…” Source: RevenueBase Database · checked Sep 17, 2026
10	Otto Graf Gmbh	Partial evidence	Teningen, GermanyHQ checked Sep 17, 2026	501-1,000	112 contacts →
	Partial evidence “Pure, clean water is one of the essential things in life, yet it’s exposed to a large number of pollutants.” Source: RevenueBase Database · checked Sep 17, 2026
11	Faeth Gmbh	Indirect evidence	Klipphausen, GermanyHQ checked Sep 17, 2026	501-1,000	105 contacts →
	Indirect evidence “System solutions for ultra-pure media supply and wastewater recycling The Fäth Group is a renowned supplier of system technology for ultra-pure media and recycling and employs 600…” Source: RevenueBase Database · checked Sep 17, 2026
12	Envirofalk Prozesswasser-Technik Gmbh	Indirect evidence	Westerburg, GermanyHQ checked Sep 17, 2026	201-500	88 contacts →
	Indirect evidence “Wir sind EnviroFALK!” Source: RevenueBase Database · checked Sep 17, 2026
13	Schweitzer-Chemie Gmbh	Partial evidence	Freiberg Am Neckar, GermanyHQ checked Sep 17, 2026	201-500	83 contacts →
	Partial evidence “Wir sind der Experte für industrielle Wasseraufbereitung und Wasserbehandlung und bieten unseren Kunden aus Schlüsselindustrien einen Produktmix aus innovativer Anlagentechnik…” Source: RevenueBase Database · checked Sep 17, 2026
14	Wehrle	Strong evidence	Emmendingen, GermanyHQ checked Sep 17, 2026	201-500	76 contacts →
	Strong evidence “Industry wastewater and Leachate treatment Equipment rental and operation Industrie Abwasser und Sickerwasser behandlung Mietanlage und Betrieb” Source: RevenueBase Database · checked Sep 17, 2026
15	HST Systemtechnik Gmbh & Co.Kg	Partial evidence	Meschede, GermanyHQ checked Sep 17, 2026	201-500	72 contacts →
	Partial evidence “HST Systemtechnik is a provider for products, systems and solutions for the water and wastewater market worldwide since 1985, with more than project references.” Source: RevenueBase Database · checked Sep 17, 2026
16	H2o Gmbh. Leaders In Zero Liquid Discharge	Partial evidence	Steinen, GermanyHQ checked Sep 17, 2026	51-200	70 contacts →
	Partial evidence “Water is one of the most precious resources on our planet.” Source: RevenueBase Database · checked Sep 17, 2026
17	Cerafiltec	Indirect evidence	Saarbrücken, GermanyHQ checked Sep 17, 2026	51-200	67 contacts →
	Indirect evidence “Cerafiltec is a German-based technology solution provider specializing in developing and producing high-performance ceramic modules and components.” Source: RevenueBase Database · checked Sep 17, 2026
18	Bauer Resources Gmbh	Indirect evidence	Schrobenhausen, GermanyHQ checked Sep 17, 2026	1,001-5,000	59 contacts →
	Indirect evidence “Die BAUER Resources GmbH ist der Geschäftsbereich für Umweltdienstleistungen der BAUER Gruppe mit Sitz in Schrobenhausen.” Source: RevenueBase Database · checked Sep 17, 2026
19	Zahnen Technik Gmbh	Indirect evidence	Arzfeld, GermanyHQ checked Sep 17, 2026	51-200	56 contacts →
	Indirect evidence “WEIL JEDER MENSCH DAS RECHT AUF SAUBERES WASSER HAT!” Source: RevenueBase Database · checked Sep 17, 2026
20	GI Aqua Tech	Partial evidence	Groß-gerau, GermanyHQ checked Sep 17, 2026	51-200	49 contacts →
	Partial evidence “GI AQUA TECH provides innovative wastewater treatment solutions, committed to a sustainable future for people and planet.” Source: RevenueBase Database · checked Sep 17, 2026
21	Centrotherm Clean Solutions Gmbh	Partial evidence	Blaubeuren, GermanyHQ checked Sep 17, 2026	201-500	47 contacts →
	Partial evidence “centrotherm clean solutions is a technology leading global supplier of equipment for the treatment of gaseous, liquid and solid pollutants with the goal to protect the environment.” Source: RevenueBase Database · checked Sep 17, 2026
22	Bela Aqua Gmbh	Indirect evidence	Zusmarshausen, GermanyHQ checked Sep 17, 2026	51-200	46 contacts →
	Indirect evidence “Jede große Geschichte hat ihren Anfang, so auch die der Bela Aqua GmbH – oder die Geschichte der beiden Menschen, die dahinterstehen: Christine und Günter Brandl.” Source: RevenueBase Database · checked Sep 17, 2026
23	Invent Umwelt- UND Verfahrenstechnik AG	Partial evidence	Erlangen, GermanyHQ checked Sep 17, 2026	51-200	45 contacts →
	Partial evidence “INVENT Umwelt- und Verfahrenstechnik AG - Leaders in mixing and aeration Water is the origin and source of all life.” Source: RevenueBase Database · checked Sep 17, 2026
24	Inwatec Gmbh & Co. KG	Strong evidence	Bergheim, GermanyHQ checked Sep 17, 2026	51-200	42 contacts →
	Strong evidence “INWATEC was founded in and has since established itself as a leading player in water treatment in Germany and Europe.” Source: RevenueBase Database · checked Sep 17, 2026
25	Envirofalk Pharmawatersystems Gmbh	Strong evidence	Leverkusen, GermanyHQ checked Sep 17, 2026	51-200	41 contacts →
	Strong evidence “EnviroFALK PharmaWaterSystems is your reliable partner of water treatment plants for pharmaceutical and high purity applications.” Source: RevenueBase Database · checked Sep 17, 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: industrial water treatment. 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 industrial water treatment.
Partial evidence: Its own public description names part of industrial water treatment, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial water treatment. 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 424 industrial water treatment based in Germany

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Industrial water treatment based in Germany at a glance

As of Sep 17, 2026

36.1%Verified-email coverage

12.4Average contacts per company

11-50Median size (employees)

3.5%Largest-city concentration · Berlin

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

168

11-50

150

51-200

201-500

501-1,000

1,001-5,000

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 424 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 industrial water treatment, 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 “industrial water treatment”. 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 industrial water treatment), 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 industrial water treatment, 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, 1,905 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 17, 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 industrial water treatment, 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 industrial water treatment are there based in Germany?

RevenueBase identified 424 industrial water treatment 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?

WTE Wassertechnik Gmbh, headquartered in Germany, tops this list with the largest team on record.

Which city has the most industrial water treatment?

Berlin leads with 15 headquartered companies, followed by Dresden (9) and Hamburg (8).

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 1,905 verified decision-maker contacts tracked across these 424 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 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 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.