Company lists · Data refreshed September 2026

Top 21 Wet weather flow treatment installers based in Germany

RevenueBase identified 51 company matches for wet weather flow treatment installers associated with Germany as of September 2026 and tracks 1,435 professional contacts across them, including 568 with verified work emails. Aachen is the largest hub.

This list covers company matches for wet weather flow treatment installers 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 September 22, 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 Sep 22, 2026 How this list was built
51Companies
1,435Contacts tracked
568Verified emails
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The 21 largest wet weather flow treatment installers based in Germany

Ranked by team size
Top 21 of 51 company matches for wet weather flow treatment installers based in Germany, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 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 matchBüdelsdorf, GermanyHQ recorded Sep 22, 20265,001-10,000710 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
2Exact matchLenting, GermanyHQ recorded Sep 22, 2026501-1,000243 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
3Exact matchEssen, GermanyHQ recorded Sep 22, 202651-20081 contacts →

Exact match

“DAHLEM is an engineering company headquartered in Essen, Germany, with offices in Darmstadt, Würzburg, Berlin, Stuttgart, Montenegro and Albania.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
4Exact matchMeschede, GermanyHQ recorded Sep 22, 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 · Sep 22, 2026 · View company records in RevenueBase
5Exact matchAachen, GermanyHQ recorded Sep 22, 202611-5021 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
6Exact matchDüsseldorf, GermanyHQ recorded Sep 22, 202651-20018 contacts →

Exact match

“Hydro-Ingenieure – Experten für Wasserwirtschaft & Siedlungswasserbau Seit über 40 Jahren planen und realisieren wir Projekte in der Wasserwirtschaft, Abwassertechnik und…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7Exact matchNuremberg, GermanyHQ recorded Sep 22, 202651-20014 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
8Exact matchMunich, GermanyHQ recorded Sep 22, 202611-5013 contacts →

Exact match

“Seit rund 20 Jahren ist SKI mit seinen Standorten in München und seit 2017 auch in Landshut ein zuverlässiger Partner für Kommunen, Auftraggeber aus der Wasserwirtschaft und…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
9Exact matchBretzfeld, GermanyHQ recorded Sep 22, 202651-20011 contacts →

Exact match

“Bgu - Umweltschutzanlagen GmbH is an environmental services company based out of 27 Schwabenstraße, Bretzfeld, Germany.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10Exact matchBremen, GermanyHQ recorded Sep 22, 202611-508 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 · Sep 22, 2026 · View company records in RevenueBase
11Exact matchBerlin, GermanyHQ recorded Sep 22, 2026201-5008 contacts →

Exact match

“We are a worldwide leading system provider of corporate and municipal system soluction around water management, waste air, drinking water, stormwater and disaster management.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
12Exact matchLuckau, GermanyHQ recorded Sep 22, 202651-2008 contacts →

Exact match

“LKT LAUSITZER KLÄRTECHNIK GMBH is a company based out of Luckau, Brandenburg, Germany.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13Exact matchHerford, GermanyHQ recorded Sep 22, 20261-107 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14Exact matchAachen, GermanyHQ recorded Sep 22, 202611-506 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 · Sep 22, 2026 · View company records in RevenueBase
15Exact matchDarmstadt, GermanyHQ recorded Sep 22, 202611-505 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
16Exact matchWeißenburg In Bayern, GermanyHQ recorded Sep 22, 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 · Sep 22, 2026 · View company records in RevenueBase
17Exact matchAachen, GermanyHQ recorded Sep 22, 20261-104 contacts →

Exact match

“Wir bei LAGUS bieten als Systemhersteller Komplettlösungen aus einer Hand an, um möglichst umfassend Trinkwasser durch Regenwasser oder Grauwasser zu ersetzen und überschüssiges…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
18Exact matchWachtendonk, GermanyHQ recorded Sep 22, 20261-103 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19Exact matchAhlen, GermanyHQ recorded Sep 22, 20261-102 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20Exact matchButzbach, GermanyHQ recorded Sep 22, 20261-101 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21Exact matchTitisee-neustadt, GermanyHQ recorded Sep 22, 20261-101 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

Showing 21 of 51 wet weather flow treatment installers based in Germany

See the full list, filter by size, metro and specialty, and access 568 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Wet weather flow treatment installers based in Germany at a glance

As of Sep 22, 2026
39.6%Verified-email coverage
28.1Average contacts per company
11-50Median size (employees)
7.8%Largest-city concentration · Aachen
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
22
11-50
16
51-200
7
201-500
2
501-1,000
1
5,001-10,000
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 51 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 “wet weather flow treatment installers” 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 568 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 September 22, 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 “wet weather flow treatment installers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many wet weather flow treatment installers are there based in Germany?

RevenueBase identified 51 company matches for wet weather flow treatment installers associated with Germany as of September 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?

ACO Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most wet weather flow treatment installers?

Aachen leads with 4 company records, followed by Berlin (3) and Budelsdorf (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 568 professional contacts with verified work emails tracked across these 51 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 September 22, 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.