Company lists · Data refreshed September 2026

Top 25 Energy consulting firms based in Austria

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

Compiled by the RevenueBase Data Team Data refreshed Sep 2, 2026 134 companies tracked

RevenueBase identified 134 energy consulting firms headquartered in Austria as of September 2026 and tracks 1,138 professional contacts across them, including 447 with verified work emails and 18 with mobile numbers. Wien is the largest hub.

This list covers energy 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 2, 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 RevenueBase Smart Search rating on every row Refreshed Sep 2, 2026 86% judged on-target in blind review

134Companies

1,138Contacts tracked

447Verified emails

18Mobile numbers

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The 25 largest energy consulting firms based in Austria

Ranked by team size

Top 25 of 134 energy consulting firms based in Austria, ranked by team size, largest first. Data refreshed Sep 2, 2026. RevenueBase Smart Search rates how each company's information relates to energy consulting firms: 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	Raaba, Austria	501-1,000	265 contacts →
	Indirect evidence “Servus bei ILF!” Source: RevenueBase Database · checked Sep 2, 2026
2	CES Clean Energy Solutions	Partial evidence	Vienna, Austria	11-50	47 contacts →
	Partial 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 2, 2026
3	Allplan Gmbh	Indirect evidence	St. Polten, Austria	51-200	38 contacts →
	Indirect evidence “ALLPLAN GmbH was founded in Vienna in 1967.” Source: RevenueBase Database · checked Sep 2, 2026
4	EEP Energieconsulting Gmbh	Strong evidence	Brunn Am Gebirge, Austria	11-50	25 contacts →
	Strong evidence “EEP Energieconsulting GmbH is a management consulting Company.” Source: RevenueBase Database · checked Sep 2, 2026
5	Inercomp	Partial evidence	Vienna, Austria	11-50	22 contacts →
	Partial evidence “Inercomp is an independent energy services company with a focus on energy trading.” Source: RevenueBase Database · checked Sep 2, 2026
6	Enexsa Gmbh	Strong evidence	Raaba-Grambach, Austria	11-50	22 contacts →
	Strong evidence “ENEXSA (formerly VTU Energy) is a team of highly qualified engineers with long-term experience in the power industry who offer consulting services and software solutions for the…” Source: RevenueBase Database · checked Sep 2, 2026
7	E7 Energy Innovation & Engineering	Strong evidence	Austria	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 2, 2026
8	Energieinstitut Vorarlberg	Partial evidence	Dornbirn, Austria	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 2, 2026
9	Power Solution	Partial evidence	Wien, Austria	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 2, 2026
10	SEM Energie- UND Gebäudemanagement Gmbh	Partial evidence	Austria	11-50	15 contacts →
	Partial evidence “SEM Energie- und Gebäudemanagement GmbH Wir sind ein stark expandierendes Unternehmen im Bereich der Energiedienstleistungen und dem Gebäudemanagement.” Source: RevenueBase Database · checked Sep 2, 2026
11	Sattler Energie Consulting	Partial evidence	Gmunden, Austria	11-50	15 contacts →
	Partial evidence “Als produktunabhängige Komplett-Anbieterin bieten wir unseren Kundinnen seit 1995 innovative und nachhaltige Gesamtlösungen in den Bereichen Energie, Umwelt und Ressourcenschonung.” Source: RevenueBase Database · checked Sep 2, 2026
12	GK Consulting Gmbh	Indirect evidence	Hagenberg Im Muhlkreis, Austria	11-50	12 contacts →
	Indirect evidence “Förderungen Im kaum überschaubaren Förderungsdschungel behalten wir den Durchblick.” Source: RevenueBase Database · checked Sep 2, 2026
13	TBH Ingenieur Gmbh	Partial evidence	Graz, Austria	1,001-5,000	12 contacts →
	Partial evidence “Die TBH Ingenieur GmbH ist IHR kompetenter Partner für ganzheitliche Lösungen, die Ihr Gebäude und energietechnischen Anlagen energieeffizienter und nachhaltiger machen.” Source: RevenueBase Database · checked Sep 2, 2026
14	Synecotec	Partial evidence	Absam, Austria	11-50	11 contacts →
	Partial evidence “We are an Energy Service Company (ESCO) from Tyrol that has set itself the task of realising clean and sustainable solutions for the energy use of companies and private households.” Source: RevenueBase Database · checked Sep 2, 2026
15	Conversio Energie Gmbh	Partial evidence	Spittal An Der Drau, Austria	201-500	11 contacts →
	Partial evidence “Conversio Energie GmbH is a chemicals company based out of Koschatstraße 24, Spittal an der Drau, Austria.” Source: RevenueBase Database · checked Sep 2, 2026
16	Lechner Partner Ingenieure Gmbh	Indirect evidence	Penzendorf, Austria	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 2, 2026
17	Eudt Energie- U. Umweltdatentreuhand Gmbh	Partial evidence	Klagenfurt, Austria	11-50	9 contacts →
	Partial evidence “Seit Jahrzehnten beschäftigen wir uns mit Energie- und Umweltdaten in Unternehmen.” Source: RevenueBase Database · checked Sep 2, 2026
18	Brainbows	Partial evidence	Wien, Austria	11-50	9 contacts →
	Partial evidence “Wir sind ein Beratungsunternehmen für Nachhaltigkeit, Energie & Klimaschutz mit Sitz in Wien.” Source: RevenueBase Database · checked Sep 2, 2026
19	E-Lite Techn. Engineering Gmbh	Indirect evidence	Linz, Austria	11-50	8 contacts →
	Indirect evidence “E-Lite Techn.” Source: RevenueBase Database · checked Sep 2, 2026
20	Engineering Office Mitplan	Strong evidence	Pinsdorf, Austria	1-10	8 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 2, 2026
21	Ringhofer & Partner Gmbh	Partial evidence	Schwaz, Austria	11-50	8 contacts →
	Partial evidence “Die Ringhofer & Partner GmbH mit Sitz in Pinggau in der Steiermark ist eines der führenden Planungsbüros im Bereich Gebäudetechnik, Bau- und Energieplanung österreichweit.” Source: RevenueBase Database · checked Sep 2, 2026
22	UVP Environmental Management And Engineering Gmbh	Partial evidence	Wien, Austria	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 2, 2026
23	Decision Advisory Group Gmbh	Partial evidence	Wien, Austria	1-10	7 contacts →
	Partial evidence “We address the most urgent challenges of data centre operators, industrial companies, municipalities and the energy sector when it comes to transforming their infrastructure at…” Source: RevenueBase Database · checked Sep 2, 2026
24	Elkatec Consult Engineering Gmbh	Partial evidence	Salzburg, Austria	11-50	6 contacts →
	Partial evidence “elkatec, ein modernes Planungsbüro zur Umsetzung von energieeffizienten Planungslösungen in Elektro- und Haustechnikbereichen der Wirtschafts-und Gewerbekunden sowie des…” Source: RevenueBase Database · checked Sep 2, 2026
25	Smart Engineering Gmbh	Partial evidence	Brixlegg, Austria	11-50	6 contacts →
	Partial evidence “IHR SMARTER PARTNER IN DEN BEREICHEN Gebäudetechnik – Fördermanagement – Energieberatung Unser Fokus liegt auf wirtschaftliche Anlagenplanung mit möglichst hohem Einsatz von…” Source: RevenueBase Database · checked Sep 2, 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: energy consulting firms. 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 energy consulting firms.
Partial evidence: Its own public description names part of energy consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy consulting firms. 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 134 energy consulting firms based in Austria

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Energy consulting firms based in Austria at a glance

As of Sep 2, 2026

39.3%Verified-email coverage

1.6%Mobile-number coverage

8.5Average contacts per company

1-10Median size (employees)

12.7%Largest-city concentration · Wien

Sep 2, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 energy consulting firms, 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 “energy consulting firms”. 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 energy consulting firms), 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 energy 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 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, 447 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 2, 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 energy consulting firms, 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 energy consulting firms are there based in Austria?

RevenueBase identified 134 energy 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 In Austria, headquartered in Raaba, tops this list with the largest team on record.

Which city has the most energy consulting firms?

Wien leads with 17 headquartered companies, followed by Vienna (13) and Graz (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 447 verified decision-maker contacts tracked across these 134 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 2, 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.