Company lists · Data refreshed September 2026

Top 25 Energy infrastructure consultants based in Austria

RevenueBase identified 145 energy infrastructure consultants headquartered in Austria as of September 2026 and tracks 3,004 professional contacts across them, including 1,261 with verified work emails. Vienna is the largest hub.

This list covers energy infrastructure consultants 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
145Companies
3,004Contacts tracked
1,261Verified emails
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The 25 largest energy infrastructure consultants based in Austria

Ranked by team size
Top 25 of 145 energy infrastructure consultants 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 infrastructure consultants: 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 evidenceFeldkirch, AustriaHQ checked Sep 16, 202651-20073 contacts →

Indirect 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
2Partial evidenceBludenz, AustriaHQ checked Sep 16, 202651-20063 contacts →

Partial 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
3Strong evidenceVienna, AustriaHQ checked Sep 16, 202611-5047 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 16, 2026
4Indirect evidenceVienna, AustriaHQ checked Sep 16, 2026201-50047 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
5Indirect evidenceVienna, AustriaHQ checked Sep 16, 202651-20038 contacts →

Indirect evidence

“ALLPLAN GmbH was founded in Vienna in 1967.”

Source: RevenueBase Database · checked Sep 16, 2026
6Partial evidenceInnsbruck, AustriaHQ checked Sep 16, 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 16, 2026
7Partial evidenceVienna, AustriaHQ checked Sep 16, 202611-5022 contacts →

Partial evidence

“Inercomp is an independent energy services company with a focus on energy trading.”

Source: RevenueBase Database · checked Sep 16, 2026
8Partial evidenceRaaba-grambach, AustriaHQ checked Sep 16, 202611-5022 contacts →

Partial 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
9Partial evidenceKlagenfurt Am Wörthersee, AustriaHQ checked Sep 16, 202611-5022 contacts →

Partial evidence

“Die VUM Verfahren Umwelt Management GmbH setzt in Zusammenarbeit mit ihren Auftraggebern seit 25 Jahren erfolgreich Projekte der Energiewirtschaft, Infrastruktur und Industrie um.”

Source: RevenueBase Database · checked Sep 16, 2026
10Partial evidenceVienna, AustriaHQ checked Sep 16, 202611-5020 contacts →

Partial 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
11Indirect evidenceTheresienfeld, AustriaHQ checked Sep 16, 202651-20020 contacts →

Indirect evidence

“Projektentwicklung, Beratung, Planung, Umsetzung von PV-Projekten für Gewerbe und Industrie”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceGraz, AustriaHQ checked Sep 16, 202611-5018 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 16, 2026
13Partial evidenceWien, AustriaHQ checked Sep 16, 202611-5016 contacts →

Partial evidence

“The Energy Transformation - Our Vision for the 21st Century!”

Source: RevenueBase Database · checked Sep 16, 2026
14Partial evidenceWien, AustriaHQ checked Sep 16, 202611-5015 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
15Partial evidenceGraz, AustriaHQ checked Sep 16, 20261,001-5,00012 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 16, 2026
16Indirect evidencePenzendorf, AustriaHQ checked Sep 16, 202611-5010 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 16, 2026
17Partial evidenceVienna, AustriaHQ checked Sep 16, 202611-5010 contacts →

Partial evidence

“Voltares is an independent renewable energy developer focused on utility-scale and distributed assets in emerging markets.”

Source: RevenueBase Database · checked Sep 16, 2026
18Partial evidencePinggau, AustriaHQ checked Sep 16, 202611-509 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 16, 2026
19Indirect evidenceLinz, AustriaHQ checked Sep 16, 202611-508 contacts →

Indirect evidence

“E-Lite Techn.”

Source: RevenueBase Database · checked Sep 16, 2026
20Indirect evidenceWien, AustriaHQ checked Sep 16, 202611-508 contacts →

Indirect evidence

“Die EPG wurde 1990 gegründet und ist ein Ingenieurbüro für Elektrotechnik mit Standorten in Wien und Spittal/Drau.”

Source: RevenueBase Database · checked Sep 16, 2026
21Indirect evidenceInnsbruck, AustriaHQ checked Sep 16, 20261-108 contacts →

Indirect evidence

“Project Development, Engineering & Engineering Management”

Source: RevenueBase Database · checked Sep 16, 2026
22Indirect evidenceSt. Polten, AustriaHQ checked Sep 16, 20261-108 contacts →

Indirect evidence

“Wir von INGENIUM bieten Ihnen die fachliche Kompetenz für die Verwirklichung Ihrer Bauvorhaben, dabei liegt der Fokus auf Infrastruktur.”

Source: RevenueBase Database · checked Sep 16, 2026
23Indirect evidenceWiener Neustadt, AustriaHQ checked Sep 16, 202611-508 contacts →

Indirect evidence

“Als Ingenieurbüro für Installations- und Elektrotechnik, welches seit 1980 besteht, decken wir das gesamte Spektrum der technischen Gebäudeausrüstung sowohl in der Planung als…”

Source: RevenueBase Database · checked Sep 16, 2026
24Partial evidenceGraz, AustriaHQ checked Sep 16, 20261-107 contacts →

Partial evidence

“i2m Unternehmensentwicklung GmbH is a research-driven technology development and innovation consultancy founded in Graz, Austria in 2014.”

Source: RevenueBase Database · checked Sep 16, 2026
25Partial evidenceLeonding, AustriaHQ checked Sep 16, 202651-2007 contacts →

Partial evidence

“Die GLS Enerige GmbH wurde 2012, in Perg, gegründet.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 145 energy infrastructure consultants based in Austria

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Energy infrastructure consultants based in Austria at a glance

As of Sep 16, 2026
42.0%Verified-email coverage
20.7Average contacts per company
1-10Median size (employees)
13.8%Largest-city concentration · Vienna
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
85
11-50
44
51-200
10
201-500
2
501-1,000
1
1,001-5,000
2

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 145 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 infrastructure consultants, 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 infrastructure consultants”. 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 infrastructure consultants), 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 infrastructure consultants, 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, 1,261 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.

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 infrastructure consultants, 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 infrastructure consultants are there based in Austria?

RevenueBase identified 145 energy infrastructure consultants 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?

BHM Ingenieure, headquartered in Feldkirch, tops this list with the largest team on record.

Which city has the most energy infrastructure consultants?

Vienna leads with 20 headquartered companies, followed by Wien (15) and Graz (9).

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 1,261 verified decision-maker contacts tracked across these 145 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.