Company lists · Data refreshed September 2026

Top 25 Sewage treatment software companies based in Germany

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

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 181 companies tracked

RevenueBase identified 181 sewage treatment software companies headquartered in Germany as of September 2026 and tracks 1,822 professional contacts across them, including 627 with verified work emails. Berlin is the largest hub.

This list covers sewage treatment 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

181Companies

1,822Contacts tracked

627Verified emails

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The 25 largest sewage treatment software companies based in Germany

Ranked by team size

Top 25 of 181 sewage treatment 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 sewage treatment 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Aqseptence Group	Indirect evidence	Aarbergen, GermanyHQ checked Sep 29, 2026	1,001-5,000	153 contacts →
	Indirect evidence “Water is becoming one of the defining challenges of our century.” Source: RevenueBase Database · checked Sep 29, 2026
2	Envirochemie Gmbh	Indirect evidence	Rossdorf, GermanyHQ checked Sep 29, 2026	1,001-5,000	146 contacts →
	Indirect evidence “EnviroChemie is a system provider for holistic industrial water management.” Source: RevenueBase Database · checked Sep 29, 2026
3	PWT Wasser- UND Abwassertechnik Gmbh	Indirect evidence	Zwingenberg, GermanyHQ checked Sep 29, 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 29, 2026
4	Zahnen Technik Gmbh	Indirect evidence	Arzfeld, GermanyHQ checked Sep 29, 2026	51-200	56 contacts →
	Indirect evidence “WEIL JEDER MENSCH DAS RECHT AUF SAUBERES WASSER HAT!” Source: RevenueBase Database · checked Sep 29, 2026
5	GI Aqua Tech	Partial evidence	Groß-gerau, GermanyHQ checked Sep 29, 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 29, 2026
6	Invent Umwelt- UND Verfahrenstechnik AG	Indirect evidence	Erlangen, GermanyHQ checked Sep 29, 2026	51-200	45 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
7	Water Treatment Systems	Partial evidence	Kettenbach, GermanyHQ checked Sep 29, 2026	201-500	39 contacts →
	Partial 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
8	Eliquo	Indirect evidence	Bad Homburg Vor Der Höhe, GermanyHQ checked Sep 29, 2026	501-1,000	32 contacts →
	Indirect evidence “ELIQUO WATER GROUP bundles the European activities of SKion Water GmbH.” Source: RevenueBase Database · checked Sep 29, 2026
9	Envirodts Gmbh	Indirect evidence	Friedberg (hessen), GermanyHQ checked Sep 29, 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 29, 2026
10	Hamann AG	Strong evidence	Hollenstedt, GermanyHQ checked Sep 29, 2026	51-200	28 contacts →
	Strong evidence “HAMANN AG is a worldwide recognized supplier of sewage treatment technology for the maritime industry.” Source: RevenueBase Database · checked Sep 29, 2026
11	ATB Water Gmbh	Strong evidence	Porta Westfalica, GermanyHQ checked Sep 29, 2026	51-200	27 contacts →
	Strong evidence “ATB WATER - Small sewage treatment plants, wastewater treatment technology and sewage technology for every challenge in industry.” Source: RevenueBase Database · checked Sep 29, 2026
12	Almawatech	Indirect evidence	Babenhausen, GermanyHQ checked Sep 29, 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 29, 2026
13	Flexbio Technologie Gmbh	Indirect evidence	Einbeck, GermanyHQ checked Sep 29, 2026	11-50	19 contacts →
	Indirect evidence “FlexBio Technologie GmbH is one of the leading and innovative companies in the field of wastewater and biogas technology.” Source: RevenueBase Database · checked Sep 29, 2026
14	Bioworks Verfahrenstechnik	Partial evidence	Putzbrunn, GermanyHQ checked Sep 29, 2026	11-50	18 contacts →
	Partial evidence “BIOWORKS® offers full design and execution of process solutions for a whole variety of waste water treatment.” Source: RevenueBase Database · checked Sep 29, 2026
15	EWE Wasser Gmbh	Indirect evidence	Cuxhaven, GermanyHQ checked Sep 29, 2026	11-50	16 contacts →
	Indirect evidence “Die EWE WASSER GmbH mit Hauptsitz in Cuxhaven gehört über eine Mehrheitsbeteiligung der EWE-Tochter swb zum EWE-Konzern.” Source: RevenueBase Database · checked Sep 29, 2026
16	BWS Anlagenbau & Service Gmbh	Partial evidence	Oberndorf A.n., GermanyHQ checked Sep 29, 2026	11-50	14 contacts →
	Partial evidence “As a plant constructor we offer you a comprehensive range of services in the field of water and waste water treatment.” Source: RevenueBase Database · checked Sep 29, 2026
17	Ingenieurbüro Miller	Indirect evidence	Nuremberg, GermanyHQ checked Sep 29, 2026	51-200	14 contacts →
	Indirect evidence “Ingenieurskunst seit 120 Jahren Das Ingenieurbüro Miller ist ein im Bereich Umweltschutz tätiges Ingenieurbüro.” Source: RevenueBase Database · checked Sep 29, 2026
18	KLARO	Partial evidence	Bayreuth, GermanyHQ checked Sep 29, 2026	11-50	13 contacts →
	Partial evidence “KLARO is your specialist for small wastewater treatment plants up to 50 PE and bigger wastewater treatment symstems up to PE - Made in Germany Wherever a connection to the sewer…” Source: RevenueBase Database · checked Sep 29, 2026
19	VTS Verfahrenstechnik Schweitzer Gmbh	Indirect evidence	Neu-anspach, GermanyHQ checked Sep 29, 2026	11-50	10 contacts →
	Indirect evidence “Wir sind die Verfahrenstechnik Schweitzer GmbH - wir stehen für langjährige Kompetenz und Expertise auf dem Gebiet der Klärschlammanlagen.” Source: RevenueBase Database · checked Sep 29, 2026
20	ZWT Wasser-Und Abwassertechnik Gmbh	Indirect evidence	Bayreuth, GermanyHQ checked Sep 29, 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 29, 2026
21	Triton Water Gmbh	Partial evidence	Norderstedt Bei Hamburg, GermanyHQ checked Sep 29, 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 29, 2026
22	Up2e Gmbh	Indirect evidence	Rain, GermanyHQ checked Sep 29, 2026	11-50	9 contacts →
	Indirect evidence “up2e!” Source: RevenueBase Database · checked Sep 29, 2026
23	Pluvion Gmbh	Partial evidence	Freiburg, GermanyHQ checked Sep 29, 2026	1-10	9 contacts →
	Partial evidence “Pluvion steht für intelligente und zukunftsweisende Softwarelösungen im Bereich Wasserwirtschaft.” Source: RevenueBase Database · checked Sep 29, 2026
24	Ribeka Gmbh	Indirect evidence	Bornheim, GermanyHQ checked Sep 29, 2026	11-50	9 contacts →
	Indirect evidence “Welcome to the experts for digital water managment.” Source: RevenueBase Database · checked Sep 29, 2026
25	Rudolf Messner Umwelttechnik AG	Partial evidence	Adelsdorf, GermanyHQ checked Sep 29, 2026	11-50	9 contacts →
	Partial evidence “Efficiency and quality are among the most important features of modern aeration systems for biological wastewater treatment plants to operate them in an economically, ecologically…” Source: RevenueBase Database · checked Sep 29, 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: sewage treatment software 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 sewage treatment software companies.
Partial evidence: Its own public description names part of sewage treatment software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sewage treatment software 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 181 sewage treatment software companies based in Germany

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Sewage treatment software companies based in Germany at a glance

As of Sep 29, 2026

34.4%Verified-email coverage

10.1Average contacts per company

11-50Median size (employees)

2.8%Largest-city concentration · Berlin

Sep 29, 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 181 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 sewage treatment 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 “sewage treatment 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 sewage treatment 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 sewage treatment 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, 627 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 sewage treatment 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 sewage treatment software companies are there based in Germany?

RevenueBase identified 181 sewage treatment 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?

Aqseptence Group, headquartered in Aarbergen, tops this list with the largest team on record.

Which city has the most sewage treatment software companies?

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 627 verified decision-maker contacts tracked across these 181 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.