Company lists · Data refreshed November 2026

Top 25 Wastewater treatment services based in Germany

RevenueBase identified 379 company matches for wastewater treatment services associated with Germany as of November 2026 and tracks 3,839 professional contacts across them, including 1,269 with verified work emails. Berlin is the largest hub.

This list covers company matches for wastewater treatment services associated with Germany, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
379Companies
3,839Contacts tracked
1,269Verified emails
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The 25 largest wastewater treatment services based in Germany

Ranked by team size
Top 25 of 379 company matches for wastewater treatment services based in Germany, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchE, GermanyHQ recorded Nov 6, 2026501-1,000267 contacts →

Exact match

“Optimierung.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchAarbergen, GermanyHQ recorded Nov 6, 20261,001-5,000178 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchBrake, GermanyHQ recorded Nov 6, 2026501-1,000172 contacts →

Exact match

“An der Quelle zum Erfolg: Der OOWV als Arbeitgeber.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchFrankfurt, GermanyHQ recorded Nov 6, 202651-200147 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchZwingenberg, GermanyHQ recorded Nov 6, 202651-200113 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchFreiberg Am Neckar, GermanyHQ recorded Nov 6, 2026201-50098 contacts →

Exact match

“Wir sind der Experte für industrielle Wasseraufbereitung und Wasserbehandlung und bieten unseren Kunden aus Schlüsselindustrien einen Produktmix aus innovativer Anlagentechnik…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchMeschede, GermanyHQ recorded Nov 6, 2026201-50072 contacts →

Exact match

“HST Systemtechnik is a provider for products, systems and solutions for the water and wastewater market worldwide since 1985, with more than project references.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchGroß-gerau, GermanyHQ recorded Nov 6, 202651-20059 contacts →

Exact match

“GI AQUA TECH provides innovative wastewater treatment solutions, committed to a sustainable future for people and planet.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBad Homburg Vor Der Höhe, GermanyHQ recorded Nov 6, 2026501-1,00044 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBergheim, GermanyHQ recorded Nov 6, 202651-20043 contacts →

Exact match

“INWATEC was founded in and has since established itself as a leading player in water treatment in Germany and Europe.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchErlangen, GermanyHQ recorded Nov 6, 202651-20039 contacts →

Exact match

“INVENT Umwelt- und Verfahrenstechnik AG - Leaders in mixing and aeration Water is the origin and source of all life.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchHetlingen, GermanyHQ recorded Nov 6, 2026201-50039 contacts →

Exact match

“Moin!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchKettenbach, GermanyHQ recorded Nov 6, 2026201-50036 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchHollenstedt, GermanyHQ recorded Nov 6, 202651-20030 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchFriedberg (hessen), GermanyHQ recorded Nov 6, 202651-20030 contacts →

Exact match

“Anlagenbau für Wasser- und Abwassertechnik Labore / Institute / Krankenhäuser und Industrie EnviroDTS ist spezialisiert auf die komplette Abwasseraufbereitung und…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAachen, GermanyHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“atd plans and builds plants in all areas of wastewater management”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMonheim, GermanyHQ recorded Nov 6, 202651-20028 contacts →

Exact match

“Success story - tradition becomes innovation MKR Metzger can look back on three successful decades.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchHerford, GermanyHQ recorded Nov 6, 202611-5024 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchPutzbrunn, GermanyHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“BIOWORKS® offers full design and execution of process solutions for a whole variety of waste water treatment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchVoerde, GermanyHQ recorded Nov 6, 202651-20022 contacts →

Exact match

“Das umfassende Dienstleistungsangebot der FILTRATEC erspart dem Kunden eigene Investitionen und umfasst die Geräte- und Personalgestellung für anspruchsvolle Aufgaben in der…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBabenhausen, GermanyHQ recorded Nov 6, 202651-20021 contacts →

Exact match

“ALMAWATECH – Anlagenbau & Prozesslösungen für industrielle Wassertechnik Die ALMAWATECH GmbH ist ein familiengeführtes Unternehmen mit langer Tradition in der industriellen…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchCuxhaven, GermanyHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“Die EWE WASSER GmbH mit Hauptsitz in Cuxhaven gehört über eine Mehrheitsbeteiligung der EWE-Tochter swb zum EWE-Konzern.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchErlangen, GermanyHQ recorded Nov 6, 202651-20015 contacts →

Exact match

“Über uns Wasser ist Leben.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchOberndorf A.n., GermanyHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“As a plant constructor we offer you a comprehensive range of services in the field of water and waste water treatment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchNuremberg, GermanyHQ recorded Nov 6, 202651-20013 contacts →

Exact match

“Ingenieurskunst seit 120 Jahren Das Ingenieurbüro Miller ist ein im Bereich Umweltschutz tätiges Ingenieurbüro.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 379 wastewater treatment services based in Germany

See the full list, filter by size, metro and specialty, and access 1,269 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Wastewater treatment services based in Germany at a glance

As of Nov 6, 2026
33.1%Verified-email coverage
10.1Average contacts per company
11-50Median size (employees)
2.9%Largest-city concentration · Berlin
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
167
11-50
117
51-200
49
201-500
11
501-1,000
6
1,001-5,000
2
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 379 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Germany whose business descriptions match “wastewater treatment services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,269 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “wastewater treatment services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many wastewater treatment services are there based in Germany?

RevenueBase identified 379 company matches for wastewater treatment services associated with Germany as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

WTE Wassertechnik Gmbh tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most wastewater treatment services?

Berlin leads with 11 company records, followed by Dresden (7) and Hamburg (7).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,269 professional contacts with verified work emails tracked across these 379 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.