Company lists · Data refreshed September 2026

Top 25 Water treatment chemical companies based in Germany

Name: Water treatment chemical companies based in Germany
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 137 companies tracked

RevenueBase identified 137 water treatment chemical companies headquartered in Germany as of September 2026 and tracks 1,325 professional contacts across them, including 431 with verified work emails. Berlin is the largest hub.

This list covers water treatment chemical companies 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

137Companies

1,325Contacts tracked

431Verified emails

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The 25 largest water treatment chemical companies based in Germany

Ranked by team size

Top 25 of 137 water treatment chemical companies 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 water treatment chemical companies: 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	Grünbeck AG	Indirect evidence	Höchstädt, GermanyHQ checked Sep 19, 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 19, 2026
2	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
3	Schweitzer-Chemie Gmbh	Indirect evidence	Freiberg Am Neckar, GermanyHQ checked Sep 19, 2026	201-500	83 contacts →
	Indirect 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 19, 2026
4	Inwatec Gmbh & Co. KG	Strong evidence	Bergheim, GermanyHQ checked Sep 19, 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 19, 2026
5	Haug Chemie Gmbh	Indirect evidence	Sinsheim, GermanyHQ checked Sep 19, 2026	51-200	40 contacts →
	Indirect evidence “Die Welt ist im Wandel.” Source: RevenueBase Database · checked Sep 19, 2026
6	Water Treatment Systems	Strong evidence	Kettenbach, GermanyHQ checked Sep 19, 2026	201-500	39 contacts →
	Strong evidence “Water Treatment’s product portfolio covers a range of water and waste water treatment processes with a focus on headworks, mechanical treatment and biological solutions deployed…” Source: RevenueBase Database · checked Sep 19, 2026
7	Cornelsen Group	Indirect evidence	Essen, GermanyHQ checked Sep 19, 2026	51-200	35 contacts →
	Indirect evidence “Headquartered in Essen (Germany), with a branch in Nailsea (United Kingdom), Stockholm (Sweden) and Boston,(US) Cornelsen Group has been at the forefront of innovative remediation…” Source: RevenueBase Database · checked Sep 19, 2026
8	Kebo Keller & Bohacek Gmbh & Co. KG	Indirect evidence	Düsseldorf, GermanyHQ checked Sep 19, 2026	51-200	23 contacts →
	Indirect evidence “For 100 years, Keller & Bohacek GmbH & Co.” Source: RevenueBase Database · checked Sep 19, 2026
9	Perma-Trade Wassertechnik Gmbh	Indirect evidence	Leonberg, GermanyHQ checked Sep 19, 2026	51-200	22 contacts →
	Indirect evidence “perma-trade Wassertechnik gilt als Pionier und Innovationstreiber in der um-weltfreundlichen Wasserbehandlung und hat aus seinem besonderen Verant-wortungsbewusstsein für unser…” Source: RevenueBase Database · checked Sep 19, 2026
10	Almawatech	Indirect evidence	Babenhausen, GermanyHQ checked Sep 19, 2026	51-200	20 contacts →
	Indirect evidence “ALMAWATECH – Anlagenbau & Prozesslösungen für industrielle Wassertechnik Die ALMAWATECH GmbH ist ein familiengeführtes Unternehmen mit langer Tradition in der industriellen…” Source: RevenueBase Database · checked Sep 19, 2026
11	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
12	Feralco Deutschland Gmbh	Indirect evidence	Nienburg (weser), GermanyHQ checked Sep 19, 2026	51-200	18 contacts →
	Indirect evidence “Die Feralco Deutschland GmbH ist ein Tochterunternehmen der Feralco AB, mit Sitz in Helsingborg/Schweden.” Source: RevenueBase Database · checked Sep 19, 2026
13	Dr. Nüsken Chemie	Indirect evidence	Kamen, GermanyHQ checked Sep 19, 2026	51-200	18 contacts →
	Indirect evidence “Dr.” Source: RevenueBase Database · checked Sep 19, 2026
14	Rhoba-Chemie Gmbh	Indirect evidence	Bielefeld, GermanyHQ checked Sep 19, 2026	11-50	15 contacts →
	Indirect evidence “Ihr Partner für innovative chemische Spezialprodukte RHOBA-Chemie GmbH bietet ihren Partnern und Kunden vom Standort Bielefeld aus seit 1996 chemische Spezialprodukte und…” Source: RevenueBase Database · checked Sep 19, 2026
15	Carela Gmbh	Indirect evidence	Rheinfelden, GermanyHQ checked Sep 19, 2026	11-50	15 contacts →
	Indirect evidence “CARELA GmbH is an international trade and development company based out of Schafmatt 5, Rheinfelden, Rheinfelden (Baden), Germany.” Source: RevenueBase Database · checked Sep 19, 2026
16	Weidner Wassertechnik Gmbh	Indirect evidence	Herten, GermanyHQ checked Sep 19, 2026	11-50	13 contacts →
	Indirect evidence “Die Weidner Wassertechnik GmbH ist seit über 20 Jahren Spezialist in der industriellen Wasseraufbereitung und der kompetente Ansprechpartner in allen Bereichen der komplexen Welt…” Source: RevenueBase Database · checked Sep 19, 2026
17	Watch Water Gmbh	Partial evidence	Mannheim, GermanyHQ checked Sep 19, 2026	11-50	12 contacts →
	Partial evidence “Watch Water® with its headquarter in Mannheim, Germany, is one of the fastest growing companies in manufacturing Scale Prevention, Adsorbers, Filter Medias and INSTANT Dosing…” Source: RevenueBase Database · checked Sep 19, 2026
18	Triton Water Gmbh	Strong evidence	Norderstedt Bei Hamburg, GermanyHQ checked Sep 19, 2026	11-50	10 contacts →
	Strong evidence “TRITON WATER® AG, founded in Hamburg in 1851, offers customized solutions especially for industrial water and waste water treatment for the Food & Beverage, Oil & Gas and Energy…” Source: RevenueBase Database · checked Sep 19, 2026
19	Chemie Wasser Lohbeck Gmbh	Indirect evidence	Groß-umstadt, GermanyHQ checked Sep 19, 2026	11-50	9 contacts →
	Indirect evidence “Die CHEMIE+WASSER Lohbeck GmbH berät und beliefert Unternehmen, die wasserführende Anlagen betreiben, mit maßgeschneiderten apparativen und chemischen Lösungen.” Source: RevenueBase Database · checked Sep 19, 2026
20	Up2e Gmbh	Indirect evidence	Rain, GermanyHQ checked Sep 19, 2026	11-50	9 contacts →
	Indirect evidence “up2e!” Source: RevenueBase Database · checked Sep 19, 2026
21	Leyco Wassertechnik Gmbh	Strong evidence	Föritztal, GermanyHQ checked Sep 19, 2026	11-50	8 contacts →
	Strong 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
22	Reher & Ramsden Nachflg. Gmbh & Co. KG	Indirect evidence	Hamburg-wilhelmsburg, GermanyHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence “Reher & Ramsden Nachflg.” Source: RevenueBase Database · checked Sep 19, 2026
23	Water & Wastewater Technic WWT Gmbh	Strong evidence	Pleidelsheim, GermanyHQ checked Sep 19, 2026	1-10	8 contacts →
	Strong evidence “In the whole area of the treatment and cleaning of water, Water & Wastewater Technic WWT GmbH provides a service-oriented partner, and comprehensive products and services…” Source: RevenueBase Database · checked Sep 19, 2026
24	Iwat Gmbh	Strong evidence	Hebertshausen, GermanyHQ checked Sep 19, 2026	11-50	7 contacts →
	Strong evidence “We make industrial water treatment more efficient, more sustainable and more reliable.” Source: RevenueBase Database · checked Sep 19, 2026
25	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

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: water treatment chemical companies. 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 water treatment chemical companies.
Partial evidence: Its own public description names part of water treatment chemical companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name water treatment chemical companies. 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 137 water treatment chemical companies based in Germany

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Water treatment chemical companies based in Germany at a glance

As of Sep 19, 2026

32.5%Verified-email coverage

9.7Average contacts per company

11-50Median size (employees)

4.4%Largest-city concentration · Berlin

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 137 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 water treatment chemical companies, 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 “water treatment chemical companies”. 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 water treatment chemical companies), 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 water treatment chemical companies, 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, 431 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 water treatment chemical companies, 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 water treatment chemical companies are there based in Germany?

RevenueBase identified 137 water treatment chemical companies 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?

Grünbeck AG, headquartered in Hochstadt, tops this list with the largest team on record.

Which city has the most water treatment chemical companies?

Berlin leads with 6 headquartered companies, followed by Mannheim (4) and Essen (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 431 verified decision-maker contacts tracked across these 137 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.