Company lists · Data refreshed September 2026

Top 25 Civil contractors specializing in water based in Austria

RevenueBase identified 55 civil contractors specializing in water headquartered in Austria as of September 2026 and tracks 305 professional contacts across them, including 141 with verified work emails. Wien is the largest hub.

This list covers civil contractors specializing in water headquartered in Austria, 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 16, 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 16, 2026 86% judged on-target in blind review
55Companies
305Contacts tracked
141Verified emails
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The 25 largest civil contractors specializing in water based in Austria

Ranked by team size
Top 25 of 55 civil contractors specializing in water based in Austria, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to civil contractors specializing in water: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceFeldkirch, AustriaHQ checked Sep 16, 2026501-1,00040 contacts →

Indirect evidence

“Seit der Gründung 1876 hat sich Hilti & Jehle vom traditionellen Hoch- und Tiefbauer zum innovativen Gesamtanbieter mit internationaler Ausrichtung entwickelt.”

Source: RevenueBase Database · checked Sep 16, 2026
2Partial evidenceAmstetten, AustriaHQ checked Sep 16, 202651-20030 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
3Partial evidenceLeobersdorf, AustriaHQ checked Sep 16, 202651-20025 contacts →

Partial evidence

“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.”

Source: RevenueBase Database · checked Sep 16, 2026
4Indirect evidenceVöcklabruck, AustriaHQ checked Sep 16, 202611-5022 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceSteyregg, AustriaHQ checked Sep 16, 202651-20021 contacts →

Indirect evidence

“Wasser ist Leben.”

Source: RevenueBase Database · checked Sep 16, 2026
6Indirect evidencePerg, AustriaHQ checked Sep 16, 202651-20019 contacts →

Indirect evidence

“Die GLS Bau und Montage GmbH mit Sitz in Österreich ist Komplettanbieter in den Geschäftsbereichen Hochbau, Tiefbau, Pipelinebau, Bahnbau, sowie im Stahl- und Rohrbau samt…”

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect evidenceLebring, AustriaHQ checked Sep 16, 202651-20019 contacts →

Indirect evidence

“TIBA ist auf Betonprodukte für Umwelt, Kanal, Entwässerungs- und Verkehrstechnik spezialisiert und verfügt in jedem dieser Bereiche über jahrelange Erfahrung.”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidenceStainz, AustriaHQ checked Sep 16, 202611-5013 contacts →

Indirect evidence

“AQUA ENGINEERING was established in 1963 as engineering company but has early developed into an EPC contracting business and has since supplied over 100 projects worldwide with 50…”

Source: RevenueBase Database · checked Sep 16, 2026
9Indirect evidenceAderklaa, AustriaHQ checked Sep 16, 202611-5011 contacts →

Indirect evidence

“Parga steht für den modernen, nachhaltigen und schonenden Umgang mit der kostbaren Ressource Wasser.”

Source: RevenueBase Database · checked Sep 16, 2026
10Indirect evidenceWiesmath, AustriaHQ checked Sep 16, 20261-105 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceKrems An Der Donau, AustriaHQ checked Sep 16, 202651-2004 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceGeboltskirchen, AustriaHQ checked Sep 16, 202611-504 contacts →

Indirect evidence

“Ingenieurbüro für Kulturtechnik und Wasserwirtschaft.”

Source: RevenueBase Database · checked Sep 16, 2026
13Indirect evidenceWien, AustriaHQ checked Sep 16, 20261-104 contacts →

Indirect evidence

“Ingenieurbüro für Kulturtechnik und Wasserwirtschaft”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceGratwein-straßengel, AustriaHQ checked Sep 16, 202611-504 contacts →

Indirect evidence

“Wir von Mach & Partner beschäftigen uns seit mehr als 30 Jahren mit dem Thema Wasser: Ein hoch qualifiziertes Team aus Projektleitern, technischen Zeichnern und administrativen…”

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceSankt Johann Im Pongau, AustriaHQ checked Sep 16, 202611-504 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
16Indirect evidenceLangenlois, AustriaHQ checked Sep 16, 20261-103 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
17Indirect evidenceAxams, AustriaHQ checked Sep 16, 20261-102 contacts →

Indirect evidence

“Thallessa - Ihr Generalunternehmer für Freizeitanlagen: Sie bekommen Alles aus einer Hand, von der Planung bis zur schlüsselfertigen Umsetzung -THALLESSA schlüsselfertig!“ Mit…”

Source: RevenueBase Database · checked Sep 16, 2026
18Indirect evidenceInnsbruck, AustriaHQ checked Sep 16, 202611-502 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 16, 2026
19Indirect evidenceLinz, AustriaHQ checked Sep 16, 202611-502 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
20Indirect evidenceGraz, AustriaHQ checked Sep 16, 20261-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
21Indirect evidenceAbsam, AustriaHQ checked Sep 16, 20261-102 contacts →

Indirect evidence

“Unsere Erfahrung ist Ihr Potential.”

Source: RevenueBase Database · checked Sep 16, 2026
22Indirect evidenceVienna, AustriaHQ checked Sep 16, 20261-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
23Indirect evidenceSt. Stefan Im Lavanttal, AustriaHQ checked Sep 16, 202611-501 contacts →

Indirect evidence

“ICON INFRASTRUKTUR BAU GmbH is a company based out of AUENFISCHERSTRASSE 100, St.”

Source: RevenueBase Database · checked Sep 16, 2026
24Partial evidenceLeibnitz/kaindorf, AustriaHQ checked Sep 16, 20261-101 contacts →

Partial evidence

“We are consulting engineers for water management and environmental engineering and we are specialised on the sustainable optimisation and conservation of pipe-bounded…”

Source: RevenueBase Database · checked Sep 16, 2026
25Indirect evidencePucking, AustriaHQ checked Sep 16, 20261-101 contacts →

Indirect evidence

“Willkommen bei der Wolfgang Traussner Bau GmbH Kontakt herstellen Der perfekte Partner für Ihr Projekt Als modernes Bauunternehmen sind wir auf Kommunalbau, Industriebau, privaten…”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 55 civil contractors specializing in water based in Austria

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Civil contractors specializing in water based in Austria at a glance

As of Sep 16, 2026
46.2%Verified-email coverage
5.5Average contacts per company
1-10Median size (employees)
7.3%Largest-city concentration · Wien
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
30
11-50
14
51-200
9
201-500
1
501-1,000
1

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 55 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 civil contractors specializing in water, 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 Austria whose own description of what they do matches “civil contractors specializing in water”. 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 civil contractors specializing in water), 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 civil contractors specializing in water, and records with no verified work email. Companies headquartered outside Austria 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, 141 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 16, 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 civil contractors specializing in water, 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 civil contractors specializing in water are there based in Austria?

RevenueBase identified 55 civil contractors specializing in water headquartered in Austria 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?

Hilti Jehle Gmbh, headquartered in Feldkirch, tops this list with the largest team on record.

Which city has the most civil contractors specializing in water?

Wien leads with 4 headquartered companies, followed by Graz (3) and Feldkirch (2).

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 141 verified decision-maker contacts tracked across these 55 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 16, 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.