Company lists · Data refreshed September 2026

Top 25 Wastewater management software companies based in Germany

RevenueBase identified 324 wastewater management software companies headquartered in Germany as of September 2026 and tracks 4,990 professional contacts across them, including 1,906 with verified work emails. Berlin is the largest hub.

This list covers wastewater management software 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 29, 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 29, 2026 86% judged on-target in blind review
324Companies
4,990Contacts tracked
1,906Verified emails
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The 25 largest wastewater management software companies based in Germany

Ranked by team size
Top 25 of 324 wastewater management software companies based in Germany, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to wastewater management software 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceBüdelsdorf, GermanyHQ checked Sep 29, 20265,001-10,000710 contacts →

Indirect evidence

“ACO is a Water-Tech company that protects water.”

Source: RevenueBase Database · checked Sep 29, 2026
2Partial evidenceLenting, GermanyHQ checked Sep 29, 2026501-1,000243 contacts →

Partial evidence

“Draining water, treating wastewater and protecting against backwater: As drainage specialists, we protect people from the power of water and protect water from people.”

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceE, GermanyHQ checked Sep 29, 2026501-1,000242 contacts →

Indirect evidence

“Optimierung.”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceMannheim, GermanyHQ checked Sep 29, 20261,001-5,000207 contacts →

Indirect evidence

“We move water – and water moves us.”

Source: RevenueBase Database · checked Sep 29, 2026
5Partial evidenceDresden, GermanyHQ checked Sep 29, 2026501-1,000203 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 29, 2026
6Indirect evidenceAarbergen, GermanyHQ checked Sep 29, 20261,001-5,000153 contacts →

Indirect evidence

“Water is becoming one of the defining challenges of our century.”

Source: RevenueBase Database · checked Sep 29, 2026
7Partial evidenceRossdorf, GermanyHQ checked Sep 29, 20261,001-5,000146 contacts →

Partial evidence

“EnviroChemie is a system provider for holistic industrial water management.”

Source: RevenueBase Database · checked Sep 29, 2026
8Indirect evidenceFrankfurt, GermanyHQ checked Sep 29, 202651-200134 contacts →

Indirect evidence

“Passavant has always been a name synonymous with excellence of execution through innovation.”

Source: RevenueBase Database · checked Sep 29, 2026
9Indirect evidenceSchriesheim, GermanyHQ checked Sep 29, 2026201-500115 contacts →

Indirect evidence

“Wasser ist nicht nur eine kostbare Lebensressource, sondern auch eine der großen Herausforderungen dieses Jahrhunderts.”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceZwingenberg, GermanyHQ checked Sep 29, 202651-200113 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 29, 2026
11Indirect evidenceTeningen, GermanyHQ checked Sep 29, 2026501-1,000112 contacts →

Indirect 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 29, 2026
12Indirect evidenceEssen, GermanyHQ checked Sep 29, 202651-20081 contacts →

Indirect 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 29, 2026
13Partial evidenceEmmendingen, GermanyHQ checked Sep 29, 2026201-50076 contacts →

Partial evidence

“Industry wastewater and Leachate treatment Equipment rental and operation Industrie Abwasser und Sickerwasser behandlung Mietanlage und Betrieb”

Source: RevenueBase Database · checked Sep 29, 2026
14Partial evidenceMeschede, GermanyHQ checked Sep 29, 2026201-50072 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 29, 2026
15Indirect evidenceSteinen, GermanyHQ checked Sep 29, 202651-20070 contacts →

Indirect evidence

“Water is one of the most precious resources on our planet.”

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceArzfeld, GermanyHQ checked Sep 29, 202651-20056 contacts →

Indirect evidence

“WEIL JEDER MENSCH DAS RECHT AUF SAUBERES WASSER HAT!”

Source: RevenueBase Database · checked Sep 29, 2026
17Partial evidenceGroß-gerau, GermanyHQ checked Sep 29, 202651-20049 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 29, 2026
18Indirect evidenceErlangen, GermanyHQ checked Sep 29, 202651-20045 contacts →

Indirect 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 29, 2026
19Indirect evidenceBergheim, GermanyHQ checked Sep 29, 202651-20042 contacts →

Indirect 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 29, 2026
20Indirect evidenceKettenbach, GermanyHQ checked Sep 29, 2026201-50039 contacts →

Indirect 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 29, 2026
21Strong evidenceBraunschweig, GermanyHQ checked Sep 29, 202611-5038 contacts →

Strong evidence

“We are developing innovative software for infrastructure and water management for more than 25 years.”

Source: RevenueBase Database · checked Sep 29, 2026
22Indirect evidenceDresden, GermanyHQ checked Sep 29, 202651-20032 contacts →

Indirect 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 29, 2026
23Indirect evidenceBad Homburg Vor Der Höhe, GermanyHQ checked Sep 29, 2026501-1,00032 contacts →

Indirect evidence

“ELIQUO WATER GROUP bundles the European activities of SKion Water GmbH.”

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidenceFriedberg (hessen), GermanyHQ checked Sep 29, 202651-20029 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 29, 2026
25Indirect evidenceHollenstedt, GermanyHQ checked Sep 29, 202651-20028 contacts →

Indirect evidence

“HAMANN AG is a worldwide recognized supplier of sewage treatment technology for the maritime industry.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 324 wastewater management software companies based in Germany

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Wastewater management software companies based in Germany at a glance

As of Sep 29, 2026
38.2%Verified-email coverage
15.4Average contacts per company
11-50Median size (employees)
3.4%Largest-city concentration · Berlin
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
121
11-50
119
51-200
52
201-500
11
501-1,000
5
1,001-5,000
4
5,001-10,000
1
10001+
1

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 324 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 wastewater management software 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 “wastewater management software 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 wastewater management software 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 wastewater management software 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, 1,906 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 29, 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 wastewater management software 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 wastewater management software companies are there based in Germany?

RevenueBase identified 324 wastewater management software 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?

ACO Group, headquartered in Budelsdorf, tops this list with the largest team on record.

Which city has the most wastewater management software companies?

Berlin leads with 11 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 1,906 verified decision-maker contacts tracked across these 324 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 29, 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.