Company lists · Data refreshed September 2026

Top 20 Wastewater treatment plant contractors based in Austria

RevenueBase identified 30 company matches for wastewater treatment plant contractors associated with Austria as of September 2026 and tracks 257 professional contacts across them, including 117 with verified work emails. Vienna is the largest hub.

This list covers company matches for wastewater treatment plant contractors associated with Austria, 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 19, 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 19, 2026 How this list was built
30Companies
257Contacts tracked
117Verified emails
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The 20 largest wastewater treatment plant contractors based in Austria

Ranked by team size
Top 20 of 30 company matches for wastewater treatment plant contractors based in Austria, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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 matchRottenbach, AustriaHQ recorded Sep 19, 2026201-50052 contacts →

Exact match

“The VTA Group specialises in optimising municipal and industrial sewage treatment plants.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2Exact matchAmstetten, AustriaHQ recorded Sep 19, 202651-20030 contacts →

Exact match

“The international operating GIS Aqua group is a reliable and well-known partner in the water treatment plant industry.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchLeobersdorf, AustriaHQ recorded Sep 19, 202651-20025 contacts →

Exact match

“GWT Gesellschaft für Wasser- und Wärmetechnik GmbH is a company with over 35 years of expertise in engineering and construction of water treatment plants globally.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchVienna, AustriaHQ recorded Sep 19, 202651-20023 contacts →

Exact match

“WASSER IST UNSER ELEMENT.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchVöcklabruck, AustriaHQ recorded Sep 19, 202611-5022 contacts →

Exact match

“Ziviltechniker GmbH, Ingenieurleistungen im Bereich Siedlungswasserbau, Abwasserreinigung und Verfahrenstechnik, Hochwasserschutz, Straßenplanung, Vermessung und…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6Exact matchSalzburg, AustriaHQ recorded Sep 19, 202611-5012 contacts →

Exact match

“SFC Umwelttechnik GmbH is a specialized company for process technologies in the field of water and wastewater treatment.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchVienna, AustriaHQ recorded Sep 19, 202611-5011 contacts →

Exact match

“Gegründet im Jahr 1945, zählen wir - seit 1971 als ÖSTAP Engineering & Consulting GmbH - zu den ältesten Planungsbüros in der österreichischen Wasserwirtschaft.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchSt. Veit An Der Glan, AustriaHQ recorded Sep 19, 20261-105 contacts →

Exact match

“We have a long tradition of responsible partnership with the water and waste water industry in offering products and services in the fields of measurement, inspection, cleaning…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchWiesmath, AustriaHQ recorded Sep 19, 20261-105 contacts →

Exact match

“Wir arbeiten in der Umwelttechnik und Wasserwirtschaft, speziell in den Bereichen Trinkwasser, Abwasser, Niederschlagswasser, Straßenbau, Wasserbau, Glasfaserinfrastruktur und…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchKrems An Der Donau, AustriaHQ recorded Sep 19, 202651-2004 contacts →

Exact match

“Hydro-Ingenieure Umwelttechnik GmbH is an executive office company based out of Steiner Landstraße 27a, Krems an der Donau, Austria.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchGraz, AustriaHQ recorded Sep 19, 202611-504 contacts →

Exact match

“Die Wastewater Solutions Group (WWSG) plant, konstruiert, installiert und betreibt Wassermanagementsysteme, die wirtschaftliche und ökologische Vorteile bieten.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchGeboltskirchen, AustriaHQ recorded Sep 19, 202611-504 contacts →

Exact match

“Ingenieurbüro für Kulturtechnik und Wasserwirtschaft.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchSankt Johann Im Pongau, AustriaHQ recorded Sep 19, 202611-504 contacts →

Exact match

“Seit mehr als 40 Jahren beraten wir unsere Kunden fachmännisch und vollkommen produktneutral, erarbeiten die rechtlich, technisch und wirtschaftlich beste Lösung und betreuen die…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchKlagenfurt Am Wörthersee, AustriaHQ recorded Sep 19, 202611-502 contacts →

Exact match

“Stehst du vor der Herausforderung, effiziente Abwassertechnik-Lösungen zu finden, aber der Markt ist unübersichtlich und komplex?”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchInnsbruck, AustriaHQ recorded Sep 19, 202611-502 contacts →

Exact match

“Unsere Schwerpunkte liegen in der Planung und Realisierung kommunaler Wasserversorgungs- und Abwasserbeseitigungsanlagen.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchLinz, AustriaHQ recorded Sep 19, 202611-502 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchInnsbruck, AustriaHQ recorded Sep 19, 20261-102 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchAbsam, AustriaHQ recorded Sep 19, 20261-102 contacts →

Exact match

“Unsere Erfahrung ist Ihr Potential.”

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

Exact match

“Grünbeck ist Ihr kompetenter Ansprechpartner für Wasseraufbereitung, Trinkwasser, Brauchwasser und Abwasser.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20Exact matchOberpullendorf, AustriaHQ recorded Sep 19, 20261-101 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 20 of 30 wastewater treatment plant contractors based in Austria

See the full list, filter by size, metro and specialty, and access 117 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Wastewater treatment plant contractors based in Austria at a glance

As of Sep 19, 2026
45.5%Verified-email coverage
8.6Average contacts per company
11-50Median size (employees)
13.3%Largest-city concentration · Vienna
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
10
11-50
14
51-200
4
201-500
2

Email recency for this list is measured worldwide rather than for Austria, so it is reported there. Company counts and contact totals on this page are exact for Austria, over 30 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 Austria whose business descriptions match “wastewater treatment plant 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 117 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 19, 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 plant contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many wastewater treatment plant contractors are there based in Austria?

RevenueBase identified 30 company matches for wastewater treatment plant contractors associated with Austria 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?

VTA Group We Clean Water tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most wastewater treatment plant contractors?

Vienna leads with 4 company records, followed by Innsbruck (3) and Linz (3).

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 117 professional contacts with verified work emails tracked across these 30 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 19, 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.