Company lists · Data refreshed September 2026

Top 25 Energy engineering consulting companies based in Austria

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 307 companies tracked

RevenueBase identified 307 energy engineering consulting companies headquartered in Austria as of September 2026 and tracks 4,627 professional contacts across them, including 1,994 with verified work emails. Wien is the largest hub.

This list covers energy engineering 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 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

307Companies

4,627Contacts tracked

1,994Verified emails

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The 25 largest energy engineering consulting companies based in Austria

Ranked by team size

Top 25 of 307 energy engineering consulting companies 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 energy engineering 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	Bernard Gruppe	Partial evidence	Hall In Tirol, AustriaHQ checked Sep 16, 2026	501-1,000	338 contacts →
	Partial evidence “Die BERNARD Gruppe ist ein unabhängiges, national und international tätiges Ingenieurunternehmen für interdisziplinäre Aufgaben in den Bereichen Energie, Industrie, Infrastruktur…” Source: RevenueBase Database · checked Sep 16, 2026
2	Geoconsult Consulting Engineers	Strong evidence	Puch Bei Hallein, AustriaHQ checked Sep 16, 2026	201-500	212 contacts →
	Strong evidence “GC GROUP is an independent and family-owned global business offering integrated engineering and consulting services for infrastructure projects.” Source: RevenueBase Database · checked Sep 16, 2026
3	KS Engineers	Partial evidence	Graz, AustriaHQ checked Sep 16, 2026	501-1,000	191 contacts →
	Partial evidence “Wir sind ein international tätiges Technologieunternehmen mit Fokus auf präzise Prüflösungen für die Automobilindustrie sowie innovative Anwendungen in Energietechnik, Simulation…” Source: RevenueBase Database · checked Sep 16, 2026
4	Pörner Ingenieurgesellschaft MBH	Partial evidence	Vienna, AustriaHQ checked Sep 16, 2026	501-1,000	129 contacts →
	Partial evidence “We build plants with a certain 'plus' in innovation, flexibility and productivity." The Pörner Group is a leading independent engineering contractor, specializing in process…” Source: RevenueBase Database · checked Sep 16, 2026
5	Klenk & Meder Gmbh	Indirect evidence	St. Pölten, AustriaHQ checked Sep 16, 2026	501-1,000	80 contacts →
	Indirect evidence “Wer wir sind Als großes österreichisches Elektrotechnikunternehmen blickt Klenk & Meder auf eine über 50-jährige erfolgreiche Unternehmensgeschichte zurück.” Source: RevenueBase Database · checked Sep 16, 2026
6	BHM Ingenieure	Partial evidence	Feldkirch, AustriaHQ checked Sep 16, 2026	51-200	73 contacts →
	Partial evidence “Since 1992, BHM INGENIEURE has been working as an interdisciplinary engineering company on national as well as international assignments with a focus on industry, transportation…” Source: RevenueBase Database · checked Sep 16, 2026
7	Dieffenbacher Energy	Strong evidence	Bludenz, AustriaHQ checked Sep 16, 2026	51-200	63 contacts →
	Strong evidence “We offer our customers in the international power plant and plant engineering sectors a wide range of advanced solutions for sustainable energy generation.” Source: RevenueBase Database · checked Sep 16, 2026
8	ZFG Altherm Engineering	Indirect evidence	Baden, AustriaHQ checked Sep 16, 2026	51-200	49 contacts →
	Indirect evidence “ZFG ALTHERM ist Wegweiser für Ingenieurleistungen der technischen Gebäudeausrüstung.” Source: RevenueBase Database · checked Sep 16, 2026
9	CES Clean Energy Solutions	Partial evidence	Vienna, AustriaHQ checked Sep 16, 2026	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 16, 2026
10	LSG Group Gmbh	Indirect evidence	Vienna, AustriaHQ checked Sep 16, 2026	201-500	47 contacts →
	Indirect evidence “LSG GROUP based in Austria, was originally founded as Leopold Jordan GmbH in Vienna in 1997, renamed 2010 to LJG Building Solutions GmbH and finally 2012 restructured to the LSG…” Source: RevenueBase Database · checked Sep 16, 2026
11	AEP Planung UND Beratung Gmbh	Indirect evidence	Schwaz, AustriaHQ checked Sep 16, 2026	51-200	38 contacts →
	Indirect evidence “Leidenschaft für das Projekt – das verbindet unser Team.” Source: RevenueBase Database · checked Sep 16, 2026
12	Allplan Gmbh	Indirect evidence	Vienna, AustriaHQ checked Sep 16, 2026	51-200	38 contacts →
	Indirect evidence “ALLPLAN GmbH was founded in Vienna in 1967.” Source: RevenueBase Database · checked Sep 16, 2026
13	Hereschwerke Gmbh	Partial evidence	Wildon, AustriaHQ checked Sep 16, 2026	51-200	27 contacts →
	Partial evidence “Die Hereschwerke sind der industrielle Partner im Bereich der Elektrotechnik bei zukunftsweisenden Gebäude, Infrastruktur, und Energielösungen.” Source: RevenueBase Database · checked Sep 16, 2026
14	Adenbeck Gmbh	Indirect evidence	Wels, AustriaHQ checked Sep 16, 2026	51-200	26 contacts →
	Indirect evidence “Unsere Kernkompetenz liegt in der ganzheitlichen - ß ü.” Source: RevenueBase Database · checked Sep 16, 2026
15	SAR Anlagenbau Gmbh	Indirect evidence	Hausmening, AustriaHQ checked Sep 16, 2026	51-200	25 contacts →
	Indirect evidence “Unser breites Leistungsspektrum ist unser Vorteil.” Source: RevenueBase Database · checked Sep 16, 2026
16	Posch & Partners Consulting Engineers	Partial evidence	Innsbruck, AustriaHQ checked Sep 16, 2026	11-50	23 contacts →
	Partial evidence “Posch & Partners core competence lies within the vital and overlapping fields of water, energy and environment.” Source: RevenueBase Database · checked Sep 16, 2026
17	Inercomp	Partial evidence	Vienna, AustriaHQ checked Sep 16, 2026	11-50	22 contacts →
	Partial evidence “Inercomp is an independent energy services company with a focus on energy trading.” Source: RevenueBase Database · checked Sep 16, 2026
18	Enexsa Gmbh	Strong evidence	Raaba-grambach, AustriaHQ checked Sep 16, 2026	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 16, 2026
19	Baucon International ZT Gmbh	Partial evidence	Vienna, AustriaHQ checked Sep 16, 2026	51-200	21 contacts →
	Partial 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 16, 2026
20	E7 Energy Innovation & Engineering	Strong evidence	Vienna, AustriaHQ checked Sep 16, 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 16, 2026
21	Emc-Elektromanagement & Construction Gmbh	Partial evidence	Böheimkirchen, AustriaHQ checked Sep 16, 2026	201-500	20 contacts →
	Partial evidence “emc bietet seinen Kunden seit 1970 ein breites Spektrum an Dienstleistungen aus allen Bereichen der Elektrotechnik: Energietechnik, Kommunikationstechnik, Beleuchtungstechnik…” Source: RevenueBase Database · checked Sep 16, 2026
22	Woschitz Group	Indirect evidence	Wien, AustriaHQ checked Sep 16, 2026	51-200	20 contacts →
	Indirect evidence “WE ADD STABILITY TO VISION.” Source: RevenueBase Database · checked Sep 16, 2026
23	Ingenos ZT Gmbh	Indirect evidence	Gleisdorf, AustriaHQ checked Sep 16, 2026	11-50	19 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 16, 2026
24	Kppk Ziviltechniker Gmbh	Indirect evidence	Vienna, AustriaHQ checked Sep 16, 2026	11-50	17 contacts →
	Indirect evidence “KPPK Ziviltechniker GmbH - BAUEN WIR GEMEINSAM Die KPPK Ziviltechniker GmbH gestaltet seit dem Jahr 2005 in Zusammenarbeit mit Bauherren, Architekten und fachspezifischen…” Source: RevenueBase Database · checked Sep 16, 2026
25	Power Solution	Partial evidence	Wien, AustriaHQ checked Sep 16, 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 16, 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 engineering 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 energy engineering consulting companies.
Partial evidence: Its own public description names part of energy engineering consulting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy engineering 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 307 energy engineering consulting companies based in Austria

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Energy engineering consulting companies based in Austria at a glance

As of Sep 16, 2026

43.1%Verified-email coverage

15.1Average contacts per company

1-10Median size (employees)

10.4%Largest-city concentration · Wien

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

172

11-50

51-200

201-500

501-1,000

1,001-5,000

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 307 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 energy engineering 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 “energy engineering 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 energy engineering 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 energy engineering 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, 1,994 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.

Energy engineering consulting companies by metro

Energy engineering consulting companies in Wien32

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 engineering 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 energy engineering consulting companies are there based in Austria?

RevenueBase identified 307 energy engineering 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?

Bernard Gruppe, headquartered in Hall In Tirol, tops this list with the largest team on record.

Which city has the most energy engineering consulting companies?

Wien leads with 32 headquartered companies, followed by Vienna (23) and Graz (18).

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 1,994 verified decision-maker contacts tracked across these 307 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.