Company lists · Data refreshed November 2026

Top 25 Water quality improvement contractors based in Germany

RevenueBase identified 106 company matches for water quality improvement contractors associated with Germany as of November 2026 and tracks 1,153 professional contacts across them, including 411 with verified work emails. Leipzig is the largest hub.

This list covers company matches for water quality improvement contractors 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
106Companies
1,153Contacts tracked
411Verified emails
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The 25 largest water quality improvement contractors based in Germany

Ranked by team size
Top 25 of 106 company matches for water quality improvement contractors 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 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
2Exact matchSchriesheim, GermanyHQ recorded Nov 6, 2026201-500134 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchArzfeld, GermanyHQ recorded Nov 6, 2026201-50072 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact 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
5Exact matchLeipzig, GermanyHQ recorded Nov 6, 202611-5024 contacts →

Exact match

“Sachsen Wasser GmbH (SaWa) is a specialised consulting company in the field of water supply and sanitation with a particular focus on water utility advisory and operations and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchRohrdorf, GermanyHQ recorded Nov 6, 202651-20023 contacts →

Exact match

“Perfekter Service: Ganz auf Ihre Bedürfnisse zugeschnitten Das Dienstleistungsangebot der DIWA-Analytik umfasst alle Punkte der rechtskonformen Umsetzung der Trinkwasserverordnung.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchHockenheim, GermanyHQ recorded Nov 6, 202651-20021 contacts →

Exact match

“Wer wir sind?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchWolfenbüttel, GermanyHQ recorded Nov 6, 202651-20017 contacts →

Exact match

“Wir von Avacon Wasser sind Dienstleister im Auftrag der Allgemeinheit, die uns eines ihrer grundlegendsten Güter anvertraut hat: Wir fördern, verteilen und kontrollieren das…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact 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
10Exact matchCrailsheim, GermanyHQ recorded Nov 6, 20261-1015 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSenftenberg, GermanyHQ recorded Nov 6, 2026201-50012 contacts →

Exact match

“Wir, die Wasserverband Lausitz Betriebsführungs GmbH (WAL-Betrieb) sind gefragter Partner für nachhaltige Wasserwirtschaft.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchFrankfurt (oder) (frankfurt), GermanyHQ recorded Nov 6, 202611-5012 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchBayreuth, GermanyHQ recorded Nov 6, 202651-20010 contacts →

Exact match

“Zuverlässige wegweisende Technik Seit 25 Jahren sind wir zuverlässiger Partner der Kommunen, Zweckverbände und Industrie wenn es um wirtschaftliche Lösungen in der Wasser- und…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchAichstetten, GermanyHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Seit über 15 Jahren setzen unsere Systeme Maßstäbe bei der Schonung dieser natürlicher Ressource.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBöbingen An Der Rems, GermanyHQ recorded Nov 6, 202611-508 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchFreiberg Am Neckar, GermanyHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Wir bieten Ihnen eine umfassende Palette modernster Wasseraufbereitungstechniken, beraten Sie bei Planung und Einsatz der Verfahren.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchAachen, GermanyHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Die Siedlungswasserwirtschaft mit der Wasserversorgung, der Abwasserableitung und Abwasserbehandlung, der konstruktive Wasserbau mit Hochwasserschutz und Gewässerausbau, der…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBremen, GermanyHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Die Bremer pro aqua Wasser- und Abwasser GmbH arbeitet mit einem seit Jahren eingespielten Team aus hochqualifizierten und erfahrenen Ingenieuren, Technikern und Monteuren.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchHebertshausen, GermanyHQ recorded Nov 6, 202611-507 contacts →

Exact match

“We make industrial water treatment more efficient, more sustainable and more reliable.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchMannheim, GermanyHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Eine klare Sache für Industrie, Gewerbe und Handel sowie für Bad, Küche, Schwimmbad und andere Bereiche im privaten Haushalt: Wasseraufbereitungssysteme plus kompetente Beratung…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchGelsenkirchen, GermanyHQ recorded Nov 6, 202651-2006 contacts →

Exact match

“AWS GmbH – Ihr Partner für Wasser- und Abwassermanagement Als Spezialist für industrielles und kommunales Wasser- und Abwassermanagement übernehmen wir die langfristige…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSeybothenreuth, GermanyHQ recorded Nov 6, 202611-506 contacts →

Exact match

“utp umwelttechnik specializes in developing and implementing innovative water and wastewater treatment systems for municipal and industrial applications.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchWeinheim, GermanyHQ recorded Nov 6, 202611-506 contacts →

Exact match

“WaterX übernimmt das für Sie – schnell, individuell und mit großer Fachkompetenz!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchWeißenburg In Bayern, GermanyHQ recorded Nov 6, 202611-505 contacts →

Exact match

“Als Ingenieurbüro für Wasserwirtschaft und Abwassertechnik planen wir kommunale und industrielle Kläranlagen sowie Kanalnetze und Wasserableitungen und sorgen gleichsam für deren…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchSulingen, GermanyHQ recorded Nov 6, 20261-105 contacts →

Exact match

Recorded description not available.

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

Showing 25 of 106 water quality improvement contractors based in Germany

See the full list, filter by size, metro and specialty, and access 411 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Water quality improvement contractors based in Germany at a glance

As of Nov 6, 2026
35.6%Verified-email coverage
10.9Average contacts per company
11-50Median size (employees)
2.8%Largest-city concentration · Leipzig
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
46
11-50
34
51-200
14
201-500
6
501-1,000
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 106 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 “water quality improvement contractors” 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 411 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 “water quality improvement contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many water quality improvement contractors are there based in Germany?

RevenueBase identified 106 company matches for water quality improvement contractors 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?

Oldenburgisch-Ostfriesischer Wasserverband Oowv tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most water quality improvement contractors?

Leipzig leads with 3 company records, followed by Berlin (2) and Hamburg (2).

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 411 professional contacts with verified work emails tracked across these 106 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.