Company lists · Data refreshed September 2026

Top 25 Hydropower consulting firms based in Austria

Name: Hydropower consulting firms based in Austria
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 89 companies tracked

RevenueBase identified 89 hydropower consulting firms headquartered in Austria as of September 2026 and tracks 3,267 professional contacts across them, including 1,350 with verified work emails and 39 with mobile numbers. Wien is the largest hub.

This list covers hydropower consulting firms 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, how directly it supports the match, and when it was last checked. Data refreshed September 3, 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 HQ checked on every row Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review

89Companies

3,267Contacts tracked

1,350Verified emails

39Mobile numbers

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The 25 largest hydropower consulting firms based in Austria

Ranked by team size

Top 25 of 89 hydropower consulting firms based in Austria, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names hydropower consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	ILF Consulting EngineersPartial evidence	Worldwide, AustriaHQ checked Sep 3, 2026	1,001-5,000	1,752
	“The ILF Group (ILF) is an international engineering and consulting firm that helps its clients successfully execute technically demanding industrial and infrastructure projects.” Source: company website · checked Sep 3, 2026
2	Geoconsult Consulting EngineersPartial evidence	Puch Bei Hallein, AustriaHQ checked Sep 3, 2026	201-500	212
	“GC GROUP is an independent and family-owned global business offering integrated engineering and consulting services for infrastructure projects.” Source: company website · checked Sep 3, 2026
3	Global Hydro EnergyPartial evidence	Niederranna, AustriaHQ checked Sep 3, 2026	201-500	208
	“GLOBAL Hydro is the primary contact worldwide for hydropower technologies and secures a liveable environment for the next generations due to innovative solutions.” Source: company website · checked Sep 3, 2026
4	CES Clean Energy SolutionsIndirect evidence	Vienna, AustriaHQ checked Sep 3, 2026	11-50	47
	“CES clean energy solutions is an enginneering consultant company and serves you as competence centre for energy efficiency, renewable energy and sustainable development.” Source: company website · checked Sep 3, 2026
5	HydrogridPartial evidence	Vienna, AustriaHQ checked Sep 3, 2026	11-50	43
	“HYDROGRID is a real-time capable water management & production planning software for the optimal operation of hydropower plants that enables operators to strategically react…” Source: company website · checked Sep 3, 2026
6	KS Ingenieure ZT GmbhIndirect evidence	Wien, AustriaHQ checked Sep 3, 2026	51-200	34
	“KS Ingenieure ZT GmbH - Ihr starker Partner für Ingenieurleistungen aus einer Hand!” Source: company website · checked Sep 3, 2026
7	Posch & Partners Consulting EngineersIndirect evidence	Innsbruck, AustriaHQ checked Sep 3, 2026	11-50	23
	“Posch & Partners core competence lies within the vital and overlapping fields of water, energy and environment.” Source: company website · checked Sep 3, 2026
8	Hipi ZT GmbhIndirect evidence	Vöcklabruck, AustriaHQ checked Sep 3, 2026	11-50	22
	“Ziviltechniker GmbH, Ingenieurleistungen im Bereich Siedlungswasserbau, Abwasserreinigung und Verfahrenstechnik, Hochwasserschutz, Straßenplanung, Vermessung und…” Source: company website · checked Sep 3, 2026
9	Geppert HydroPartial evidence	Hall In Tirol, AustriaHQ checked Sep 3, 2026	11-50	21
	“Geppert Hydro GmbH is a family-run company with over 125 years of experience in the construction and refurbishment of small hydropower plants up to 30 MW turbine size.” Source: company website · checked Sep 3, 2026
10	Convex ZT GmbhIndirect evidence	Graz, AustriaHQ checked Sep 3, 2026	11-50	18
	“We take care of your construction project from its beginning to its end: we create feasibility studies, basic designs, cost estimates, permit and tender designs as well as detail…” Source: company website · checked Sep 3, 2026
11	Ingenos ZT GmbhIndirect evidence	Gleisdorf, AustriaHQ checked Sep 3, 2026	11-50	18
	“Die ingenos ZT GmbH bietet ein breites Leistungsspektrum für bautechnische Dienstleistungen von der Projektentwicklung bis zur Bauaufsicht aus einer Hand.” Source: company website · checked Sep 3, 2026
12	Geo.Zt GmbhIndirect evidence	Hall, AustriaHQ checked Sep 3, 2026	11-50	18
	“The engineering geological consultancy company "geo.zt gmbh" was founded in 2005.” Source: company website · checked Sep 3, 2026
13	MJP Ziviltechniker Gmbh Geologie Hydrogeologie Geotechnik Naturgefahren UND UmweltIndirect evidence	Saalfelden Am Steinernen Meer, AustriaHQ checked Sep 3, 2026	11-50	15
	“mjp Ziviltechniker GmbH\| Geologie / Hydrogeologie /Geotechnik / Naturgefahren und Umwelt” Source: company website · checked Sep 3, 2026
14	Hydrophil GmbhPartial evidence	Vienna, AustriaHQ checked Sep 3, 2026	11-50	14
	“HYDROPHIL – an international CONSULTING and ENGINEERING firm for WATER and ENVIRONMENT.” Source: company website · checked Sep 3, 2026
15	3g Gruppe Geotechnik Graz ZT GmbhIndirect evidence	Graz, AustriaHQ checked Sep 3, 2026	51-200	12
	“Interdisziplinäres Denken ist eine der wichtigsten Voraussetzungen für ausgereifte und effiziente Lösungen.” Source: company website · checked Sep 3, 2026
16	Tdc-Skd GmbhIndirect evidence	Fürstenfeld, AustriaHQ checked Sep 3, 2026	51-200	11
	“KEINER IST WIE WIR.” Source: company website · checked Sep 3, 2026
17	Lechner Partner Ingenieure GmbhIndirect evidence	Penzendorf, AustriaHQ checked Sep 3, 2026	11-50	10
	“Die Firma Lechner + Partner Ingenieure bietet als befugtes Ingenieurbüro nicht nur Planungs- und Überwachungsleistungen an sondern versteht sich als technischer Dienstleister…” Source: company website · checked Sep 3, 2026
18	Toms ZT GmbhIndirect evidence	Krems An Der Donau, AustriaHQ checked Sep 3, 2026	11-50	8
	“Structural Engineering, Controlling” Source: company website · checked Sep 3, 2026
19	Ringhofer & Partner GmbhIndirect evidence	Pinggau, AustriaHQ checked Sep 3, 2026	11-50	8
	“Die Ringhofer & Partner GmbH mit Sitz in Pinggau in der Steiermark ist eines der führenden Planungsbüros im Bereich Gebäudetechnik, Bau- und Energieplanung österreichweit.” Source: company website · checked Sep 3, 2026
20	Filzmaier Consulting GmbhPartial evidence	Irschen, AustriaHQ checked Sep 3, 2026	11-50	6
	“Filzmaier Consulting GmbH ist ein international tätiges, unabhängiges Ingenieur- und Beratungsunternehmen, das sich als Ziel gesetzt hat seine Kunden bei der erfolgreichen…” Source: company website · checked Sep 3, 2026
21	Verbund Hydro ConsultingIndirect evidence	Vienna, AustriaHQ checked Sep 3, 2026	201-500	6
	“VERBUND is Austria's leading utility and one of the largest producers of hydroelectricity in Europe.” Source: company website · checked Sep 3, 2026
22	Machowetz & Partner Consulting ZT GmbhIndirect evidence	Linz, AustriaHQ checked Sep 3, 2026	11-50	6
	“Im Jahr 1977 gegründet beschäftigt das in Linz, Oberösterreich, ansässige und nunmehr international tätige Unternehmen derzeit etwa 40 Mitarbeiter.” Source: company website · checked Sep 3, 2026
23	Retter & Partner ZTIndirect evidence	Krems, AustriaHQ checked Sep 3, 2026	11-50	5
	“RETTER & PARTNER ZT ist seit 1974 Ihr Ingenieurbüro in KREMS an der Donau.” Source: company website · checked Sep 3, 2026
24	Enerplan GmbhIndirect evidence	Rothis, AustriaHQ checked Sep 3, 2026	11-50	5
	“Ingenieurbüro für Planung, Simulation und Hydraulik für die Bereiche Energietechnik, Haustechnik und Großwärmepumpen.” Source: company website · checked Sep 3, 2026
25	ET Ingenieurbüro GmbhIndirect evidence	Feistritz An Der Drau, AustriaHQ checked Sep 3, 2026	11-50	5
	“Als junges, aufstrebendes Unternehmen mit sehr erfahrenen Mitarbeitern begleiten und planen wir, als Ingenieurbüro für Elektrotechnik Ihr Vorhaben mit höchster elektrotechnischer…” Source: company website · checked Sep 3, 2026

Showing 25 of 89 hydropower consulting firms based in Austria

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Hydropower consulting firms based in Austria at a glance

As of Sep 3, 2026

11-50Median size (employees)

WienLargest hub · 11 HQs

39Contacts with mobile numbers

Sep 3, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Verified emails by last verification

0–30

31–60

61–90

778

90–180

470

180+

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 hydropower consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Austria whose own description of what they do matches “hydropower consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among hydropower consulting firms, 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 an evidence 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, 1,350 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 3, 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

How many hydropower consulting firms are there based in Austria?

RevenueBase identified 89 hydropower consulting firms 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?

ILF Consulting Engineers, headquartered in Linz, tops this list with the largest team on record.

Which city has the most hydropower consulting firms?

Wien leads with 11 headquartered companies, followed by Vienna (7) and Innsbruck (7).

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 1,350 verified decision-maker contacts tracked across these 89 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 3, 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.