Company lists · Data refreshed September 2026

Top 25 Water desalination engineering firms based in Germany

Name: Water desalination engineering firms 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 desalination engineering firms headquartered in Germany as of September 2026 and tracks 1,876 professional contacts across them, including 640 with verified work emails. Berlin is the largest hub.

This list covers water desalination engineering firms 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

1,876Contacts tracked

640Verified emails

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The 25 largest water desalination engineering firms based in Germany

Ranked by team size

Top 25 of 137 water desalination engineering firms 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 desalination engineering firms: 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	Envirochemie Gmbh	Partial evidence	Rossdorf, GermanyHQ checked Sep 19, 2026	1,001-5,000	146 contacts →
	Partial evidence “EnviroChemie is a system provider for holistic industrial water management.” Source: RevenueBase Database · checked Sep 19, 2026
2	Passavant Energy & Environment	Indirect evidence	Frankfurt, GermanyHQ checked Sep 19, 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 19, 2026
3	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
4	PWT Wasser- UND Abwassertechnik Gmbh	Indirect evidence	Zwingenberg, GermanyHQ checked Sep 19, 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 19, 2026
5	Hölscher	Partial evidence	Haren, GermanyHQ checked Sep 19, 2026	501-1,000	88 contacts →
	Partial evidence “Water has been our passion for more than 60 years.” Source: RevenueBase Database · checked Sep 19, 2026
6	Dahlem Beratende Ingenieure Gmbh & Co. Wasserwirtschaft KG	Partial evidence	Essen, GermanyHQ checked Sep 19, 2026	51-200	81 contacts →
	Partial evidence “DAHLEM is an engineering company headquartered in Essen, Germany, with offices in Darmstadt, Würzburg, Berlin, Stuttgart, Montenegro and Albania.” Source: RevenueBase Database · checked Sep 19, 2026
7	Zahnen Technik Gmbh	Indirect evidence	Arzfeld, GermanyHQ checked Sep 19, 2026	51-200	56 contacts →
	Indirect evidence “WEIL JEDER MENSCH DAS RECHT AUF SAUBERES WASSER HAT!” Source: RevenueBase Database · checked Sep 19, 2026
8	Bela Aqua Gmbh	Indirect evidence	Zusmarshausen, GermanyHQ checked Sep 19, 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 19, 2026
9	Consulaqua Hamburg Beratungsgesellschaft MBH	Indirect evidence	Hamburg, GermanyHQ checked Sep 19, 2026	51-200	34 contacts →
	Indirect evidence “Wasserkompetenz aus einer Hand: CONSULAQUA bietet Ingenieur- und Dienstleistungen rund um 360° Wasser!” Source: RevenueBase Database · checked Sep 19, 2026
10	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
11	P2m Berlin Gmbh	Partial evidence	Berlin, GermanyHQ checked Sep 19, 2026	51-200	25 contacts →
	Partial evidence “Excellence for Water and Environment.” Source: RevenueBase Database · checked Sep 19, 2026
12	Boreal Light Gmbh	Partial evidence	Berlin, GermanyHQ checked Sep 19, 2026	11-50	21 contacts →
	Partial evidence “Boreal Light GmbH is a young Berlin based company specialized on renewable energy solution for water treatment facilities.” Source: RevenueBase Database · checked Sep 19, 2026
13	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
14	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
15	DWA Gmbh & Co. KG	Partial evidence	Ubstadt-weiher, GermanyHQ checked Sep 19, 2026	51-200	17 contacts →
	Partial evidence “DWA is a German manufacturer of dialysis water equipment who provides services for the conception, implementation and maintenance of water treatment, concentrate supply and…” Source: RevenueBase Database · checked Sep 19, 2026
16	Hydrotechnik Lübeck Gmbh	Indirect evidence	Lübeck, GermanyHQ checked Sep 19, 2026	11-50	17 contacts →
	Indirect evidence “HYDROTECHNIK LÜBECK betreibt Spezial-Wasserbau und bringt dabei Umweltschutz und technischen Fortschritt in Einklang.” Source: RevenueBase Database · checked Sep 19, 2026
17	Miontec Gmbh	Indirect evidence	Leverkusen, GermanyHQ checked Sep 19, 2026	11-50	15 contacts →
	Indirect evidence “MionTec GmbH is a company in Leverkusen, Germany dealing with process development in Ion Exchange, Nanofiltration, Forward Osmosis, Electrodialysis and Adsorption.” Source: RevenueBase Database · checked Sep 19, 2026
18	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
19	Polyplan-Kreikenbaum Gruppe Gmbh	Partial evidence	Bremen, GermanyHQ checked Sep 19, 2026	11-50	10 contacts →
	Partial evidence “Polyplan-Kreikenbaum Gruppe GmbH located in Bremen, Germany is a company that deals with planning, construction, execution and maintenance of water systems.” Source: RevenueBase Database · checked Sep 19, 2026
20	TBP Upcon Gmbh	Indirect evidence	Moosburg, GermanyHQ checked Sep 19, 2026	11-50	10 contacts →
	Indirect evidence “Unser Ingenieurbüro hat sich auf die Verfahrenstechnik, die Abwassertechnik und die Wasseraufbereitung, vor allem in der Papier- und Kartonindustrie, spezialisiert.” Source: RevenueBase Database · checked Sep 19, 2026
21	ZWT Wasser-Und Abwassertechnik Gmbh	Indirect evidence	Bayreuth, GermanyHQ checked Sep 19, 2026	51-200	10 contacts →
	Indirect evidence “Zuverlässige wegweisende Technik Seit 25 Jahren sind wir zuverlässiger Partner der Kommunen, Zweckverbände und Industrie wenn es um wirtschaftliche Lösungen in der Wasser- und…” Source: RevenueBase Database · checked Sep 19, 2026
22	Triton Water Gmbh	Partial evidence	Norderstedt Bei Hamburg, GermanyHQ checked Sep 19, 2026	11-50	10 contacts →
	Partial 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
23	H2u Aqua.Plan.Ing-Gmbh	Indirect evidence	Neukirchen-vluyn, GermanyHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence “Wir sind ein etabliertes und innovatives Ingenieurbüro im Bereich der Wasserversorgung und planen anspruchsvolle Trinkwasseraufbereitungsanlagen mit modernster Technik wie…” Source: RevenueBase Database · checked Sep 19, 2026
24	Aquadetox International Gmbh	Indirect evidence	Aichstetten, GermanyHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence “Seit über 15 Jahren setzen unsere Systeme Maßstäbe bei der Schonung dieser natürlicher Ressource.” Source: RevenueBase Database · checked Sep 19, 2026
25	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

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

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Water desalination engineering firms based in Germany at a glance

As of Sep 19, 2026

34.1%Verified-email coverage

13.7Average contacts per company

11-50Median size (employees)

3.6%Largest-city concentration · Berlin

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 desalination engineering firms, 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 desalination engineering firms”. 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 desalination engineering firms), 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 desalination engineering firms, 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, 640 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 desalination engineering firms, 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 desalination engineering firms are there based in Germany?

RevenueBase identified 137 water desalination engineering firms 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?

Envirochemie Gmbh, headquartered in Rossdorf, tops this list with the largest team on record.

Which city has the most water desalination engineering firms?

Berlin leads with 5 headquartered companies, followed by Dresden (5) and Hamburg (5).

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 640 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.