Company lists · Data refreshed September 2026

Top 25 Environmental consulting for hydro projects based in Austria

RevenueBase identified 51 environmental consulting for hydro projects headquartered in Austria as of September 2026 and tracks 307 professional contacts across them, including 136 with verified work emails. Innsbruck is the largest hub.

This list covers environmental consulting for hydro projects 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 19, 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 19, 2026 86% judged on-target in blind review
51Companies
307Contacts tracked
136Verified emails
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The 25 largest environmental consulting for hydro projects based in Austria

Ranked by team size
Top 25 of 51 environmental consulting for hydro projects based in Austria, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to environmental consulting for hydro projects: 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 evidenceVienna, AustriaHQ checked Sep 19, 202611-5047 contacts →

Indirect evidence

“CES clean energy solutions is an enginneering consultant company and serves you as competence centre for energy efficiency, renewable energy and sustainable development.”

Source: RevenueBase Database · checked Sep 19, 2026
2Partial evidenceInnsbruck, AustriaHQ checked Sep 19, 202611-5023 contacts →

Partial evidence

“Posch & Partners core competence lies within the vital and overlapping fields of water, energy and environment.”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceVienna, AustriaHQ checked Sep 19, 202651-20021 contacts →

Indirect evidence

“BauCon International ZT GmbH, headquartered in Vienna, Austria, is a leading civil engineering consultancy delivering innovative and sustainable infrastructure solutions worldwide.”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidenceGleisdorf, AustriaHQ checked Sep 19, 202611-5019 contacts →

Indirect evidence

“Die ingenos ZT GmbH bietet ein breites Leistungsspektrum für bautechnische Dienstleistungen von der Projektentwicklung bis zur Bauaufsicht aus einer Hand.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect evidenceSaalfelden Am Steinernen Meer, AustriaHQ checked Sep 19, 202611-5016 contacts →

Indirect evidence

“mjp Ziviltechniker GmbH| Geologie / Hydrogeologie /Geotechnik / Naturgefahren und Umwelt”

Source: RevenueBase Database · checked Sep 19, 2026
6Strong evidenceVienna, AustriaHQ checked Sep 19, 202611-5015 contacts →

Strong evidence

“HYDROPHIL – an international CONSULTING and ENGINEERING firm for WATER and ENVIRONMENT.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceFürstenfeld, AustriaHQ checked Sep 19, 202651-20012 contacts →

Indirect evidence

“KEINER IST WIE WIR.”

Source: RevenueBase Database · checked Sep 19, 2026
8Partial evidenceVienna, AustriaHQ checked Sep 19, 202611-5011 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceVienna, AustriaHQ checked Sep 19, 202611-5011 contacts →

Indirect evidence

“Umwelt, Ökologie und Mensch in Einklang bringen.”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceVienna, AustriaHQ checked Sep 19, 2026201-5006 contacts →

Indirect evidence

“VERBUND is Austria's leading utility and one of the largest producers of hydroelectricity in Europe.”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceLinz, AustriaHQ checked Sep 19, 202611-506 contacts →

Indirect evidence

“Im Jahr 1977 gegründet beschäftigt das in Linz, Oberösterreich, ansässige und nunmehr international tätige Unternehmen derzeit etwa 40 Mitarbeiter.”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceWiesmath, AustriaHQ checked Sep 19, 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 19, 2026
13Indirect evidenceVienna, AustriaHQ checked Sep 19, 20261-105 contacts →

Indirect evidence

“A Short History Originally established in 2011 as a joint venture between denkstatt GmbH and ENERTEC - Naftz & Partner GmbH & Co KG, the company known as denkstatt & enertec (d&e…”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceGraz, AustriaHQ checked Sep 19, 202611-504 contacts →

Indirect evidence

“Wasser ist eine der wichtigsten Lebensgrundlagen – die JR-AquaConSol GmbH verschreibt sich der qualitativen und quantitativen Sicherung dieser wertvollen Ressource.”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceGeboltskirchen, AustriaHQ checked Sep 19, 202611-504 contacts →

Indirect evidence

“Ingenieurbüro für Kulturtechnik und Wasserwirtschaft.”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceWien, AustriaHQ checked Sep 19, 20261-104 contacts →

Indirect evidence

“Ingenieurbüro für Kulturtechnik und Wasserwirtschaft”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceGratwein-straßengel, AustriaHQ checked Sep 19, 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 19, 2026
18Indirect evidenceSankt Johann Im Pongau, AustriaHQ checked Sep 19, 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 19, 2026
19Partial evidenceVienna, AustriaHQ checked Sep 19, 202611-504 contacts →

Partial evidence

“Services in the whole construction and environmental section.”

Source: RevenueBase Database · checked Sep 19, 2026
20Partial evidenceLudersdorf, AustriaHQ checked Sep 19, 20261-103 contacts →

Partial evidence

“Die Hydro GmbH, Ingenieurbüro für Hydrogeologie und Geothermie, wurde 2023 von Mag.”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceVienna, AustriaHQ checked Sep 19, 20261-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceInnsbruck, AustriaHQ checked Sep 19, 20261-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
23Indirect evidenceBöhlerwerk, AustriaHQ checked Sep 19, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
24Strong evidenceLeibnitz/kaindorf, AustriaHQ checked Sep 19, 20261-101 contacts →

Strong 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 19, 2026
25Indirect evidenceInnsbruck, AustriaHQ checked Sep 19, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 51 environmental consulting for hydro projects based in Austria

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Environmental consulting for hydro projects based in Austria at a glance

As of Sep 19, 2026
44.3%Verified-email coverage
6.0Average contacts per company
1-10Median size (employees)
11.8%Largest-city concentration · Innsbruck
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
26
11-50
19
51-200
3
201-500
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 51 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 environmental consulting for hydro projects, 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 “environmental consulting for hydro projects”. 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 environmental consulting for hydro projects), 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 environmental consulting for hydro projects, 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, 136 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 19, 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 environmental consulting for hydro projects, 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 environmental consulting for hydro projects are there based in Austria?

RevenueBase identified 51 environmental consulting for hydro projects 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?

CES Clean Energy Solutions, headquartered in Vienna, tops this list with the largest team on record.

Which city has the most environmental consulting for hydro projects?

Innsbruck leads with 6 headquartered companies, followed by Vienna (5) and Wien (4).

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 136 verified decision-maker contacts tracked across these 51 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 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 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.