Company lists · Data refreshed September 2026

Top 9 Energy sector management consultants based in Vienna, Austria

RevenueBase identified 25 energy sector management consultants headquartered in Vienna, Austria as of September 2026 and tracks 221 professional contacts across them, including 108 with verified work emails. Across Austria, Vienna is the largest hub for this category.

This list covers energy sector management consultants headquartered in Vienna, 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 28, 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 28, 2026 86% judged on-target in blind review
25Companies
221Contacts tracked
108Verified emails
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The 9 largest energy sector management consultants based in Vienna, Austria

Ranked by team size
Top 9 of 25 energy sector management consultants based in Vienna, Austria, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to energy sector management 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
1Partial evidenceVienna, AustriaHQ checked Sep 28, 2026201-50059 contacts →

Partial evidence

“Die smart Energy Services GmbH ist seit 2013 der Servicepartner für Energieunternehmen, wenn es um qualitative und effiziente Energiedienstleistungen geht.”

Source: RevenueBase Database · checked Sep 28, 2026
2Strong evidenceVienna, AustriaHQ checked Sep 28, 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 28, 2026
3Indirect evidenceVienna, AustriaHQ checked Sep 28, 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 28, 2026
4Partial evidenceVienna, AustriaHQ checked Sep 28, 202611-5022 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceVienna, AustriaHQ checked Sep 28, 202611-506 contacts →

Indirect evidence

“We accompany our clients comprehensively to transform and develop their Business across the world on site.”

Source: RevenueBase Database · checked Sep 28, 2026
6Strong evidenceVienna, AustriaHQ checked Sep 28, 20261-105 contacts →

Strong evidence

“sparkspire is a Vienna-based, independent management and technology consultancy focused exclusively on the energy industry.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceVienna, AustriaHQ checked Sep 28, 20261-102 contacts →

Partial evidence

“International team of experts, led by a team-leader with over 20 years of international experience (SEE and DACH region) in the environmental and construction industry, energy and…”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceVienna, AustriaHQ checked Sep 28, 20261-101 contacts →

Partial evidence

“Consulting for: Energy, Material and Resource Efficiency.”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceVienna, AustriaHQ checked Sep 28, 20261-101 contacts →

Partial evidence

“Management Consulting dedicated to deliver the finest combination of technical consulting, business advisory with a focus on Marketing & Sales Strategies and Process Management.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 9 of 25 energy sector management consultants based in Vienna, Austria

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Energy sector management consultants based in Vienna, Austria at a glance

As of Sep 28, 2026
48.9%Verified-email coverage
8.8Average contacts per company
1-10Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
14
11-50
7
51-200
1
201-500
2

Email recency for this list is measured across the whole Austria list rather than for Vienna, so it is reported there. Company counts and contact totals on this page are exact for Vienna, over 25 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 sector management 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 Vienna, Austria whose own description of what they do matches “energy sector management 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 sector management 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 sector management consultants, and records with no verified work email. Companies headquartered outside Vienna 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, 108 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 28, 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 sector management 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 sector management consultants are there based in Vienna, Austria?

RevenueBase identified 25 energy sector management consultants headquartered in Vienna, 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?

Smart Energy Services Gmbh, headquartered in Vienna, tops this list with the largest team on record.

Which city in Austria has the most energy sector management consultants?

Vienna leads Austria with 25 headquartered companies, followed by Wien (24) and Graz (15).

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 108 verified decision-maker contacts tracked across these 25 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 28, 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.