Company lists · Data refreshed September 2026

Top 25 Renewable integration for refineries based in Austria

Name: Renewable integration for refineries based in Austria
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 51 companies tracked

RevenueBase identified 51 renewable integration for refineries headquartered in Austria as of September 2026 and tracks 396 professional contacts across them, including 178 with verified work emails. Vienna is the largest hub.

This list covers renewable integration for refineries 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 17, 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 17, 2026 86% judged on-target in blind review

51Companies

396Contacts tracked

178Verified emails

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The 25 largest renewable integration for refineries based in Austria

Ranked by team size

Top 25 of 51 renewable integration for refineries based in Austria, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to renewable integration for refineries: 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	Dieffenbacher Energy	Indirect evidence	Bludenz, AustriaHQ checked Sep 17, 2026	51-200	63 contacts →
	Indirect 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 17, 2026
2	CES Clean Energy Solutions	Partial evidence	Vienna, AustriaHQ checked Sep 17, 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 17, 2026
3	Energy3000 Solar Gmbh	Indirect evidence	Müllendorf, AustriaHQ checked Sep 17, 2026	51-200	44 contacts →
	Indirect evidence “Nomen est omen – solar konzentriert sich auf nachhaltige Energiesysteme und -lösungen für das dritte Jahrtausend.” Source: RevenueBase Database · checked Sep 17, 2026
4	Heizma	Partial evidence	Vienna, AustriaHQ checked Sep 17, 2026	51-200	39 contacts →
	Partial evidence “We’re building Austria’s fastest-growing clean energy company, combining technology, process excellence, and hands-on execution to make renewable heating and solar power radically…” Source: RevenueBase Database · checked Sep 17, 2026
5	Sonnenkraft Gmbh	Indirect evidence	Sankt Veit An Der Glan, AustriaHQ checked Sep 17, 2026	201-500	24 contacts →
	Indirect evidence “As a leading specialist in solar energy since 1993, based in St.” Source: RevenueBase Database · checked Sep 17, 2026
6	E7 Energy Innovation & Engineering	Partial evidence	Vienna, AustriaHQ checked Sep 17, 2026	11-50	20 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 17, 2026
7	One2zero	Indirect evidence	Salzburg, AustriaHQ checked Sep 17, 2026	11-50	13 contacts →
	Indirect evidence “Vor dem Hintergrund aktueller klimatischer Prozesse, neuer gesetzlicher Rahmenbedingungen und hoher Kosten wird Dekarbonisierung zu einem der wichtigsten Themen in der…” Source: RevenueBase Database · checked Sep 17, 2026
8	PWE System Gmbh	Indirect evidence	Wels, AustriaHQ checked Sep 17, 2026	1-10	11 contacts →
	Indirect evidence “PWE System GmbH is a company based out of Franz-zola-straße 5, Wels, Oberösterreich, Austria.” Source: RevenueBase Database · checked Sep 17, 2026
9	Voltares	Partial evidence	Vienna, AustriaHQ checked Sep 17, 2026	11-50	10 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 17, 2026
10	Energy Solutions Gmbh	Partial evidence	Engerwitzdorf, AustriaHQ checked Sep 17, 2026	1-10	6 contacts →
	Partial evidence “Energy+- your partner for renewable energies.” Source: RevenueBase Database · checked Sep 17, 2026
11	Solah Gmbh	Indirect evidence	Mattersburg, AustriaHQ checked Sep 17, 2026	11-50	5 contacts →
	Indirect evidence “Wir haben es uns seit 2011 zur Aufgabe gemacht, das Potential der Sonne als Energiequelle zu nutzen.” Source: RevenueBase Database · checked Sep 17, 2026
12	Greesma Energy Services Gmbh	Indirect evidence	Sankt Margarethen An Der Raab, AustriaHQ checked Sep 17, 2026	1-10	5 contacts →
	Indirect evidence “Greesma ist Ihr professioneller Partner für nachhaltige, intelligente und wirtschaftliche Energielösungen.” Source: RevenueBase Database · checked Sep 17, 2026
13	D&e Consulting	Indirect evidence	Vienna, AustriaHQ checked Sep 17, 2026	1-10	5 contacts →
	Indirect evidence “A Short History Originally established in 2011 as a joint venture between denkstatt GmbH and ENERTEC - Naftz & Partner GmbH & Co KG, the company known as denkstatt & enertec (d&e…” Source: RevenueBase Database · checked Sep 17, 2026
14	Ehoch2	Indirect evidence	Mötz, AustriaHQ checked Sep 17, 2026	1-10	4 contacts →
	Indirect evidence “Die beste Wahl für Großprojekte in nachhaltigen Energien.” Source: RevenueBase Database · checked Sep 17, 2026
15	M-Tec Energie.Innovativ Gmbh	Indirect evidence	Arnreit, AustriaHQ checked Sep 17, 2026	51-200	3 contacts →
	Indirect evidence “M-TEC setzt sich seit 5 Jahrzehnten für die effiziente Nutzung erneuerbarer Energie ein.” Source: RevenueBase Database · checked Sep 17, 2026
16	Nu50 Energy	Indirect evidence	Linz, AustriaHQ checked Sep 17, 2026	1-10	3 contacts →
	Indirect evidence “Energiewende aus einer Hand: Als innovatives Unternehmen im Bereich erneuerbare Energien sind wir stolz darauf, individuelle Lösungen zu entwickeln, die zu einer nachhaltigen…” Source: RevenueBase Database · checked Sep 17, 2026
17	Kleinkraft	Indirect evidence	Vienna, AustriaHQ checked Sep 17, 2026	1-10	3 contacts →
	Indirect evidence “Wir unterstützen Betriebe dabei von der Energiewende zu profitieren.” Source: RevenueBase Database · checked Sep 17, 2026
18	Novel Energy Solutions Gmbh	Indirect evidence	Geretsberg, AustriaHQ checked Sep 17, 2026	1-10	2 contacts →
	Indirect evidence “Novel Energy Solutions GmbH ist ein geprüftes Ingenieurbüro und entwickelt individuelle wirtschaftliche und nachhaltige Lösungen für industrielle Energiesysteme.” Source: RevenueBase Database · checked Sep 17, 2026
19	Planungsteam E-Plus Gmbh	Indirect evidence	Dornbirn, AustriaHQ checked Sep 17, 2026	1-10	2 contacts →
	Indirect evidence “Wir beschäftigen uns bereits seit über zwei Jahrzehnten mit der energieoptimierten Gebäude- und Haustechnikplanung.” Source: RevenueBase Database · checked Sep 17, 2026
20	Efit Energie Gmbh	Indirect evidence	Waldkirchen Am Wesen, AustriaHQ checked Sep 17, 2026	51-200	1 contacts →
	Indirect evidence “Vertrauen Sie auf unsere Fachkenntnisse und entdecken Sie die Vorteile der Sonnenenergie.” Source: RevenueBase Database · checked Sep 17, 2026
21	GEM Solutions	Indirect evidence	Tillmitsch, AustriaHQ checked Sep 17, 2026	1-10	1 contacts →
	Indirect evidence “Die GEM Solutions GmbH wurde im Jahr 2021 gegründet und bietet sowohl Industrie- & Gewerbekunden als auch kommunalen und landwirtschaftlichen Betrieben und Gemeinden umfangreiche…” Source: RevenueBase Database · checked Sep 17, 2026
22	Enersetic	Indirect evidence	Radkersburg, AustriaHQ checked Sep 17, 2026	1-10	1 contacts →
	Indirect evidence “enersetic - mit Erfahrung, WIssen aber vor allem mit Passion und aus voller Überzeugung gestalten wir die Energiezukunft mit.” Source: RevenueBase Database · checked Sep 17, 2026
23	Energreen Erneuerbare Energiesysteme Gmbh	Indirect evidence	2. Stock, AustriaHQ checked Sep 17, 2026	1-10	1 contacts →
	Indirect evidence “Projekte im Bereich erneuerbare Energie mit den Schwerpunkten: Geothermiesysteme, PV, Heiz- und Kühlsysteme, Großwärmepumpen.” Source: RevenueBase Database · checked Sep 17, 2026
24	ECB Energy Consulting Business Gmbh	Indirect evidence	Salzburg, AustriaHQ checked Sep 17, 2026	1-10	1 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
25	TAA Haustechnik E.U	Partial evidence	Wien, AustriaHQ checked Sep 17, 2026	1-10	1 contacts →
	Partial evidence “Consulting, planning of sustainable building technology in the field of heating, ventilation, air conditioning, sanitation, solar and renewable Energy, energy certificate…” Source: RevenueBase Database · checked Sep 17, 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: renewable integration for refineries. 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 renewable integration for refineries.
Partial evidence: Its own public description names part of renewable integration for refineries, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable integration for refineries. 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 51 renewable integration for refineries based in Austria

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Renewable integration for refineries based in Austria at a glance

As of Sep 17, 2026

44.9%Verified-email coverage

7.8Average contacts per company

1-10Median size (employees)

9.8%Largest-city concentration · Vienna

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 51 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 renewable integration for refineries, 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 “renewable integration for refineries”. 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 renewable integration for refineries), 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 renewable integration for refineries, 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, 178 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 17, 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 renewable integration for refineries, 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 renewable integration for refineries are there based in Austria?

RevenueBase identified 51 renewable integration for refineries 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?

Dieffenbacher Energy, headquartered in Bludenz, tops this list with the largest team on record.

Which city has the most renewable integration for refineries?

Vienna leads with 5 headquartered companies, followed by Linz (2) and Salzburg (2).

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 178 verified decision-maker contacts tracked across these 51 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 17, 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.