Company lists · Data verified August 2026

Top 25 Energy efficiency consulting firms based in Austria

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 69 companies tracked

There are 69 energy efficiency consulting firms headquartered in Austria (RevenueBase, August 2026). RevenueBase tracks 417 professional contacts across them, including 158 with verified work emails and 9 with mobile numbers. Wien is the largest hub.

This list covers energy efficiency consulting firms headquartered in Austria, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

69Companies

417Contacts tracked

158Verified emails

9Mobile numbers

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The 25 largest energy efficiency consulting firms based in Austria

Ranked by team size

Top 25 of 69 energy efficiency consulting firms based in Austria, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Techem Austria	Innsbruck	201-500	52	2
2	CES Clean Energy Solutions	Vienna	11-50	47	29
3	Allplan Gmbh	St. Polten	51-200	38	23
4	EXE Green Holding	Vienna	51-200	28	1
5	EEP Energieconsulting Gmbh	Brunn Am Gebirge	11-50	25	17
6	E7 Energy Innovation & Engineering	n/a	11-50	20	17
7	Meerx Group Gmbh	Wien	11-50	17	8
8	Power Solution	Wien	11-50	15	7
9	Sattler Energie Consulting	Gmunden	11-50	15	4
10	Ifea Institut FÜR Energieausweis Gmbh	Linz	11-50	14	5
11	TBH Ingenieur Gmbh	Graz	1,001-5,000	12	3
12	E-Lite Techn. Engineering Gmbh	Linz	11-50	8	4
13	Ringhofer & Partner Gmbh	Schwaz	11-50	8	3
14	Decision Advisory Group Gmbh	Wien	1-10	7	4
15	Elkatec Consult Engineering Gmbh	Salzburg	11-50	6	4
16	PTM Energy	Kirchbichl	1-10	6	4
17	SHP Beratende Ingenieure	Kundl	11-50	6	3
18	D&e Consulting	n/a	1-10	6	2
19	Sima Consulting Gmbh	Vienna	1-10	5	3
20	Thermolink	Neckenmarkt	1-10	4	1
21	M-Tec Energie.Innovativ Gmbh	Arnreit	51-200	3	3
22	WECOM	n/a	11-50	3	3
23	Plan A Engineering	Ludmannsdorf	1-10	2	1
24	Novel Energy Solutions Gmbh	Geretsberg	1-10	2	1
25	Planungsteam E-Plus Gmbh	Dornbirn	1-10	2	1

Showing 25 of 69 energy efficiency consulting firms based in Austria

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Energy efficiency consulting firms based in Austria at a glance

As of Aug 28, 2026

1-10Median size (employees)

WienLargest hub · 11 HQs

9Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Energy efficiency consulting firms by metro

Metro	Companies
Energy efficiency consulting firms in Wien	11
Energy efficiency consulting firms in Vienna	5
Energy efficiency consulting firms in Linz	3
Energy efficiency consulting firms in Graz	2
Energy efficiency consulting firms in St. Polten	2
Energy efficiency consulting firms in Innsbruck	2
Energy efficiency consulting firms in Schaffern	1

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “energy efficiency consulting firms”, with match quality audited by blind human judging, and headquartered in Austria.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many energy efficiency consulting firms are there based in Austria?

There are 69 energy efficiency consulting firms headquartered in Austria as of August 2026 (RevenueBase).

What is the largest company on this list?

Techem Austria, headquartered in Innsbruck, tops this list with the largest team on record.

Which city has the most energy efficiency consulting firms?

Wien leads with 11 headquartered companies, followed by Vienna (5) and Linz (3).

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 158 verified decision-maker contacts tracked across these 69 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.