Company lists · Data refreshed September 2026

Top 25 Refinery engineering firms based in Austria

Name: Refinery engineering firms based in Austria
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 156 companies tracked

RevenueBase identified 156 refinery engineering firms headquartered in Austria as of September 2026 and tracks 3,170 professional contacts across them, including 1,401 with verified work emails. Wien is the largest hub.

This list covers refinery engineering firms 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

156Companies

3,170Contacts tracked

1,401Verified emails

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The 25 largest refinery engineering firms based in Austria

Ranked by team size

Top 25 of 156 refinery engineering firms 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 refinery engineering firms: 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	Spiegltec Gmbh	Indirect evidence	Brixlegg, AustriaHQ checked Sep 17, 2026	201-500	201 contacts →
	Indirect evidence “Die SPIEGLTEC GmbH ist ein unabhängiges technisches Planungsbüro mit dem Schwerpunkt Projektplanung und -umsetzung und ist seit über 25 Jahren Spezialist in der pharmazeutischen…” Source: RevenueBase Database · checked Sep 17, 2026
2	Pörner Ingenieurgesellschaft MBH	Partial evidence	Vienna, AustriaHQ checked Sep 17, 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 17, 2026
3	BHM Ingenieure	Partial evidence	Feldkirch, AustriaHQ checked Sep 17, 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 17, 2026
4	kvt.technology	Partial evidence	Graz, AustriaHQ checked Sep 17, 2026	51-200	53 contacts →
	Partial evidence “KVT is an international operating engineering company offering a full range service from the first concept to a turnkey industrial process plant.” Source: RevenueBase Database · checked Sep 17, 2026
5	ZFG Altherm Engineering	Indirect evidence	Baden, AustriaHQ checked Sep 17, 2026	51-200	49 contacts →
	Indirect evidence “ZFG ALTHERM ist Wegweiser für Ingenieurleistungen der technischen Gebäudeausrüstung.” Source: RevenueBase Database · checked Sep 17, 2026
6	CES Clean Energy Solutions	Indirect evidence	Vienna, AustriaHQ checked Sep 17, 2026	11-50	47 contacts →
	Indirect 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
7	FMW Industries	Partial evidence	Kirchstetten, AustriaHQ checked Sep 17, 2026	51-200	43 contacts →
	Partial evidence “Your partner for industrial plant engineering.” Source: RevenueBase Database · checked Sep 17, 2026
8	KS Ingenieure ZT Gmbh	Indirect evidence	Vienna, AustriaHQ checked Sep 17, 2026	51-200	35 contacts →
	Indirect evidence “KS Ingenieure ZT GmbH - Ihr starker Partner für Ingenieurleistungen aus einer Hand!” Source: RevenueBase Database · checked Sep 17, 2026
9	Adenbeck Gmbh	Indirect evidence	Wels, AustriaHQ checked Sep 17, 2026	51-200	26 contacts →
	Indirect evidence “Unsere Kernkompetenz liegt in der ganzheitlichen - ß ü.” Source: RevenueBase Database · checked Sep 17, 2026
10	Enexsa Gmbh	Indirect evidence	Raaba-grambach, AustriaHQ checked Sep 17, 2026	11-50	22 contacts →
	Indirect 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 17, 2026
11	Mettop	Partial evidence	Leoben, AustriaHQ checked Sep 17, 2026	11-50	22 contacts →
	Partial evidence “Mettop GmbH, founded in 2005, is an independent Austrian engineering company, specialised in the design, optimisation, and engineering of technologies for metallurgical processes.” Source: RevenueBase Database · checked Sep 17, 2026
12	Lean MC Gmbh	Indirect evidence	Graz, AustriaHQ checked Sep 17, 2026	11-50	22 contacts →
	Indirect evidence “Wir machen Komplexität beherrschbar.” Source: RevenueBase Database · checked Sep 17, 2026
13	Vatter & Partner Zt-Gmbh	Indirect evidence	Gleisdorf, AustriaHQ checked Sep 17, 2026	11-50	21 contacts →
	Indirect evidence “Der Weg der ZT-Vatter GmbH hat bereits 1970 begonnen.” Source: RevenueBase Database · checked Sep 17, 2026
14	Sapp Management AG Engineering Consulting	Indirect evidence	Klagenfurt Am Wörthersee, AustriaHQ checked Sep 17, 2026	11-50	19 contacts →
	Indirect evidence “SAPP Management AG was founded in 2004 and offers services in the process industry, with specialisation in pulp and paper, for business development, energy plants and concepts…” Source: RevenueBase Database · checked Sep 17, 2026
15	Convex ZT Gmbh	Indirect evidence	Graz, AustriaHQ checked Sep 17, 2026	11-50	18 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 17, 2026
16	Axis Ingenieurleistungen ZT Gmbh	Indirect evidence	Wien, AustriaHQ checked Sep 17, 2026	51-200	18 contacts →
	Indirect evidence “As a leading company in the construction industry, we offer all services from a single source as developers, planners and consultants.” Source: RevenueBase Database · checked Sep 17, 2026
17	Wallner & Schemitsch Ingenieure Gmbh	Indirect evidence	Graz, AustriaHQ checked Sep 17, 2026	51-200	16 contacts →
	Indirect evidence “Wallner & Schemitsch – Ihr Partner für anspruchsvolle Bauprojekte.” Source: RevenueBase Database · checked Sep 17, 2026
18	Synelecs Gmbh	Partial evidence	Vienna, AustriaHQ checked Sep 17, 2026	1-10	14 contacts →
	Partial evidence “Synelecs GmbH is an engineering company providing consultancy and engineering solutions for process automation and functional safety.” Source: RevenueBase Database · checked Sep 17, 2026
19	UTG Universaltechnik Gmbh	Partial evidence	Graz, AustriaHQ checked Sep 17, 2026	51-200	14 contacts →
	Partial evidence “Experienced experts for cost estimates, process engineering, basic engineering, detailed engineering, project management, procurement, site supervision, startup assistance, 3D…” Source: RevenueBase Database · checked Sep 17, 2026
20	Spitzer Engineering	Partial evidence	Vorau, AustriaHQ checked Sep 17, 2026	51-200	12 contacts →
	Partial evidence “Spitzer Engineering is one of the biggest engineering companies in Austria.” Source: RevenueBase Database · checked Sep 17, 2026
21	Schatz Gmbh, Ingenieurbuero Fuer Industrieanlagen	Partial evidence	Naarn, AustriaHQ checked Sep 17, 2026	11-50	11 contacts →
	Partial evidence “The company SCHATZ GmbH was founded in 1990 as engineering office.” Source: RevenueBase Database · checked Sep 17, 2026
22	Ferrolog Gmbh	Indirect evidence	Ybbs An Der Donau, AustriaHQ checked Sep 17, 2026	11-50	11 contacts →
	Indirect evidence “Unsere Qualifikationen und Kompetenzfelder bei ferrolog sind vielfältig.” Source: RevenueBase Database · checked Sep 17, 2026
23	Pm-Technologies Gmbh	Indirect evidence	Gleisdorf, AustriaHQ checked Sep 17, 2026	11-50	10 contacts →
	Indirect evidence “FINEST SOLUTIONS / We are an acknowledged specialist in plant construction due to our unique and patented technologies and customized solution concepts.” Source: RevenueBase Database · checked Sep 17, 2026
24	ACE Apparatebau Construction & Engineering Gmbh	Partial evidence	Lieboch, AustriaHQ checked Sep 17, 2026	51-200	10 contacts →
	Partial evidence “With ace Apparatus construction & engineering GmbH as a world market leader, Christof Group spearheads the supply and installation of tailormade solutions and reliably engineered…” Source: RevenueBase Database · checked Sep 17, 2026
25	Carantec Engineering Gmbh	Partial evidence	Klagenfurt Am Wörthersee, AustriaHQ checked Sep 17, 2026	11-50	10 contacts →
	Partial evidence “Our comprehensive expertise in the area of systems engineering is based on a wide range of projects in the pulp and paper industry as well as Power Plants, Chemical Industry and…” 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: refinery engineering firms. 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 refinery engineering firms.
Partial evidence: Its own public description names part of refinery engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name refinery engineering firms. 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 156 refinery engineering firms based in Austria

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Refinery engineering firms based in Austria at a glance

As of Sep 17, 2026

44.2%Verified-email coverage

20.3Average contacts per company

1-10Median size (employees)

13.5%Largest-city concentration · Wien

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

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 156 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 refinery engineering firms, 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 “refinery engineering firms”. 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 refinery engineering firms), 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 refinery engineering firms, 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, 1,401 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 refinery engineering firms, 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 refinery engineering firms are there based in Austria?

RevenueBase identified 156 refinery engineering firms 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?

Spiegltec Gmbh, headquartered in Brixlegg, tops this list with the largest team on record.

Which city has the most refinery engineering firms?

Wien leads with 21 headquartered companies, followed by Vienna (12) and Graz (10).

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 1,401 verified decision-maker contacts tracked across these 156 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.