Company lists · Data refreshed September 2026

Top 25 Renewable energy consulting companies based in Austria

Name: Renewable energy consulting companies based in Austria
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 124 companies tracked

RevenueBase identified 124 renewable energy consulting companies headquartered in Austria as of September 2026 and tracks 1,131 professional contacts across them, including 531 with verified work emails. Wien is the largest hub.

This list covers renewable energy consulting companies 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 17, 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 17, 2026 86% judged on-target in blind review

124Companies

1,131Contacts tracked

531Verified emails

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The 25 largest renewable energy consulting companies based in Austria

Ranked by team size

Top 25 of 124 renewable energy consulting companies based in Austria, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to renewable energy consulting companies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	ILF Consulting Engineers In Austria	Indirect evidence	Rum, AustriaHQ checked Sep 17, 2026	501-1,000	268 contacts →
	Indirect evidence “Servus bei ILF!” Source: RevenueBase Database · checked Sep 17, 2026
2	Kommunalkredit Public Consulting Gmbh	Partial evidence	Wien, AustriaHQ checked Sep 17, 2026	51-200	104 contacts →
	Partial evidence “Kommunalkredit Public Consulting pursues the goal of making long-term positive contributions to the environment, the economy, and society by managing funding programs and by…” Source: RevenueBase Database · checked Sep 17, 2026
3	WEB Windenergie AG	Partial evidence	Pfaffenschlag Bei Waidhofen, AustriaHQ checked Sep 17, 2026	201-500	91 contacts →
	Partial evidence “WEB Windenergie AG is a renewables & environment company based in Pfaffenschlag near Waidhofen, Lower Austria.” Source: RevenueBase Database · checked Sep 17, 2026
4	Human Dynamics	Partial evidence	Vienna, AustriaHQ checked Sep 17, 2026	51-200	51 contacts →
	Partial evidence “Public Sector Consulting Hulla & Co Human Dynamics GmbH, a DAI Global company, is a specialised provider of consulting services for public sector clients, with a focus on…” Source: RevenueBase Database · checked Sep 17, 2026
5	CES Clean Energy Solutions	Strong evidence	Vienna, AustriaHQ checked Sep 17, 2026	11-50	47 contacts →
	Strong 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 17, 2026
6	Allplan Gmbh	Indirect evidence	Vienna, AustriaHQ checked Sep 17, 2026	51-200	38 contacts →
	Indirect evidence “ALLPLAN GmbH was founded in Vienna in 1967.” Source: RevenueBase Database · checked Sep 17, 2026
7	E7 Energy Innovation & Engineering	Strong evidence	Vienna, AustriaHQ checked Sep 17, 2026	11-50	20 contacts →
	Strong evidence “e7 is a private research and consulting company specialized in the energy efficiency and the renewable energy sector.” Source: RevenueBase Database · checked Sep 17, 2026
8	10hoch4 Energiesysteme	Indirect evidence	Theresienfeld, AustriaHQ checked Sep 17, 2026	51-200	20 contacts →
	Indirect evidence “Projektentwicklung, Beratung, Planung, Umsetzung von PV-Projekten für Gewerbe und Industrie” Source: RevenueBase Database · checked Sep 17, 2026
9	Collective Energy	Partial evidence	Wien, AustriaHQ checked Sep 17, 2026	11-50	16 contacts →
	Partial evidence “The Energy Transformation - Our Vision for the 21st Century!” Source: RevenueBase Database · checked Sep 17, 2026
10	Energieinstitut Vorarlberg	Partial evidence	Dornbirn, AustriaHQ checked Sep 17, 2026	51-200	15 contacts →
	Partial evidence “Das Energieinstitut Vorarlberg ist ein gemeinnütziger Verein zur Beratung, Bildung und Forschung für sinnvollen Energieeinsatz und erneuerbare Energieträger in Dornbirn…” Source: RevenueBase Database · checked Sep 17, 2026
11	Power Solution	Partial evidence	Wien, AustriaHQ checked Sep 17, 2026	11-50	15 contacts →
	Partial evidence “Mit unserer langjährigen Erfahrung im Energieeinkauf und unserem hohen technischen Know-How begleiten wir unsere Kunden partnerschaftlich und auf Augenhöhe in die Energiezukunft.” Source: RevenueBase Database · checked Sep 17, 2026
12	Ökoenergie	Partial evidence	Wolkersdorf, AustriaHQ checked Sep 17, 2026	11-50	13 contacts →
	Partial evidence “Wir sind Windkraftpionier – Die ÖKOENERGIE Gruppe mit Firmensitz in Obersdorf, NÖ, ist seit 1995 im Bereich Erneuerbare Energie tätig und zählt damit zu den österreichischen…” Source: RevenueBase Database · checked Sep 17, 2026
13	One2zero	Indirect evidence	Salzburg, AustriaHQ checked Sep 17, 2026	11-50	13 contacts →
	Indirect evidence “Vor dem Hintergrund aktueller klimatischer Prozesse, neuer gesetzlicher Rahmenbedingungen und hoher Kosten wird Dekarbonisierung zu einem der wichtigsten Themen in der…” Source: RevenueBase Database · checked Sep 17, 2026
14	GK Consulting Gmbh	Indirect evidence	Hagenberg Im Mühlkreis, AustriaHQ checked Sep 17, 2026	11-50	12 contacts →
	Indirect evidence “Förderungen Im kaum überschaubaren Förderungsdschungel behalten wir den Durchblick.” Source: RevenueBase Database · checked Sep 17, 2026
15	Cycleenergy	Partial evidence	Vienna, AustriaHQ checked Sep 17, 2026	51-200	12 contacts →
	Partial evidence “Maßgeschneiderte erneuerbare Energielösungen aus der Biomasse” Source: RevenueBase Database · checked Sep 17, 2026
16	Lechner Partner Ingenieure Gmbh	Indirect evidence	Penzendorf, AustriaHQ checked Sep 17, 2026	11-50	10 contacts →
	Indirect evidence “Die Firma Lechner + Partner Ingenieure bietet als befugtes Ingenieurbüro nicht nur Planungs- und Überwachungsleistungen an sondern versteht sich als technischer Dienstleister…” Source: RevenueBase Database · checked Sep 17, 2026
17	Energiewerkstatt	Strong evidence	Lengau, AustriaHQ checked Sep 17, 2026	11-50	10 contacts →
	Strong evidence “We are a growing technical office for renewable energy located in Friedburg /Upper Austria.” Source: RevenueBase Database · checked Sep 17, 2026
18	Voltares	Strong evidence	Vienna, AustriaHQ checked Sep 17, 2026	11-50	10 contacts →
	Strong evidence “Voltares is an independent renewable energy developer focused on utility-scale and distributed assets in emerging markets.” Source: RevenueBase Database · checked Sep 17, 2026
19	Coriolis Green Investment Solutions	Strong evidence	Vienna, AustriaHQ checked Sep 17, 2026	1-10	9 contacts →
	Strong evidence “CORIOLIS Green Investment Solutions is a corporate finance and M&A boutique with an exclusive focus on renewable energy and environmental technology.” Source: RevenueBase Database · checked Sep 17, 2026
20	Brainbows	Partial evidence	Vienna, AustriaHQ checked Sep 17, 2026	11-50	9 contacts →
	Partial evidence “Wir sind ein Beratungsunternehmen für Nachhaltigkeit, Energie & Klimaschutz mit Sitz in Wien.” Source: RevenueBase Database · checked Sep 17, 2026
21	E-Lite Techn. Engineering Gmbh	Indirect evidence	Linz, AustriaHQ checked Sep 17, 2026	11-50	8 contacts →
	Indirect evidence “E-Lite Techn.” Source: RevenueBase Database · checked Sep 17, 2026
22	Pöchhacker Innovation Consulting Gmbh	Partial evidence	Linz, AustriaHQ checked Sep 17, 2026	11-50	8 contacts →
	Partial evidence “Pöchhacker Innovation Consulting GmbH (P-IC) ist ein Beratungsunternehmen, das auf wirtschafts, forschungs- und innovationspolitische Fragestellungen, die Green Transition der…” Source: RevenueBase Database · checked Sep 17, 2026
23	UVP Environmental Management And Engineering Gmbh	Partial evidence	Wien, AustriaHQ checked Sep 17, 2026	11-50	7 contacts →
	Partial evidence “Wir bieten Beratung und Engineering in den Bereichen Abfallwirtschaft, Recycling, Rückgewinnung, Ressourcen- und Energieeffizienz, Deponien, Altlastensanierung und…” Source: RevenueBase Database · checked Sep 17, 2026
24	The Climate Desk	Partial evidence	Bregenz, AustriaHQ checked Sep 17, 2026	1-10	7 contacts →
	Partial evidence “The Climate Desk TCD Consulting GmbH is a management consultancy with offices in Bregenz, Austria, and Munich, Germany.” Source: RevenueBase Database · checked Sep 17, 2026
25	Engineering Office Mitplan	Strong evidence	Pinsdorf, AustriaHQ checked Sep 17, 2026	1-10	7 contacts →
	Strong evidence “We are an Austrian consulting company focusing on planning and implementing future-oriented sustainable energy solutions for responsible people and companies.” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: renewable energy consulting companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names renewable energy consulting companies.
Partial evidence: Its own public description names part of renewable energy consulting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable energy consulting companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 124 renewable energy consulting companies based in Austria

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Renewable energy consulting companies based in Austria at a glance

As of Sep 17, 2026

46.9%Verified-email coverage

9.1Average contacts per company

1-10Median size (employees)

12.9%Largest-city concentration · Wien

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 124 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 renewable energy consulting companies, 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 “renewable energy consulting companies”. 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 renewable energy consulting companies), 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 renewable energy consulting companies, 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, 531 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 17, 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 renewable energy consulting companies, 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 renewable energy consulting companies are there based in Austria?

RevenueBase identified 124 renewable energy consulting companies 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 In Austria, headquartered in Rum, tops this list with the largest team on record.

Which city has the most renewable energy consulting companies?

Wien leads with 16 headquartered companies, followed by Vienna (12) and Linz (6).

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 531 verified decision-maker contacts tracked across these 124 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 17, 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.