Company lists · Data refreshed September 2026

Top 25 Hvac software development companies based in Austria

Name: Hvac software development companies based in Austria
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 107 companies tracked

RevenueBase identified 107 hvac software development companies headquartered in Austria as of September 2026 and tracks 1,897 professional contacts across them, including 542 with verified work emails and 36 with mobile numbers. Wien is the largest hub.

This list covers hvac software development companies 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, how directly it supports the match, and when it was last checked. Data refreshed September 3, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review

107Companies

1,897Contacts tracked

542Verified emails

36Mobile numbers

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The 25 largest hvac software development companies based in Austria

Ranked by team size

Top 25 of 107 hvac software development companies based in Austria, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names hvac software development companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	LoxoneIndirect evidence	Kollerschlag, AustriaHQ checked Sep 3, 2026	1,001-5,000	202
	“Die LOXONE Gruppe aus Kollerschlag, Österreich, ist Vorreiter im Bereich intelligente Gebäudeautomatisierung.” Source: company website · checked Sep 3, 2026
2	BÖSCHIndirect evidence	Lustenau, AustriaHQ checked Sep 3, 2026	501-1,000	131
	“1932 gründete Ing.” Source: company website · checked Sep 3, 2026
3	LoytecIndirect evidence	Wien, AustriaHQ checked Sep 3, 2026	51-200	59
	“Since LOYTEC has established itself as a leading European provider of intelligent products for building automation.” Source: company website · checked Sep 3, 2026
4	EBG GmbhIndirect evidence	Oo, AustriaHQ checked Sep 3, 2026	501-1,000	46
	“Als führendes oberösterreichisches Unternehmen der Gebäude- und Anlagentechnik sind wir mit unserem umfassenden Angebot Ihr richtiger Partner.” Source: company website · checked Sep 3, 2026
5	Kustec Kälte- UND Systemtechnik GmbhIndirect evidence	Freundorf, AustriaHQ checked Sep 3, 2026	51-200	30
	“KUSTEC is your experienced and competent partner for all professional cooling and heating queries.” Source: company website · checked Sep 3, 2026
6	Klötzl Vertriebs GmbhIndirect evidence	Klagenfurt/viktring, AustriaHQ checked Sep 3, 2026	51-200	28
	“Klötzl ist seit 1968 erfolgreich in den Bereichen Lufttechnik, Automation und Klimatechnik tätig.” Source: company website · checked Sep 3, 2026
7	Bacon BabakIndirect evidence	Vienna, AustriaHQ checked Sep 3, 2026	201-500	28
	“Die 1873 in Wien eröffnete J.L.” Source: company website · checked Sep 3, 2026
8	Netxautomation Software GmbhPartial evidence	Wels, AustriaHQ checked Sep 3, 2026	11-50	14
	“NETxAutomation is a world-wide operating, Austrian company that provides software and project support in the field of building automation.” Source: company website · checked Sep 3, 2026
9	Hörburger Gmbh & CO KGIndirect evidence	Altach, AustriaHQ checked Sep 3, 2026	51-200	13
	“Hörburger: Partner für hochwertige Energietechnik mit Zukunft Hörburger gilt als einer der regional führenden Experten für hochwertige Gesamtlösungen in den Bereichen Sanitär- und…” Source: company website · checked Sep 3, 2026
10	Windisch Elektro TechnikIndirect evidence	Kirchberg An Der Raab, AustriaHQ checked Sep 3, 2026	11-50	12
	“Windisch Elektro Technik is a company based out of NR.” Source: company website · checked Sep 3, 2026
11	TGS Technischer Gebäude Service GmbhIndirect evidence	Altach, AustriaHQ checked Sep 3, 2026	51-200	11
	“TGS wurde 2005 gegründet.” Source: company website · checked Sep 3, 2026
12	Ovum WärmepumpenIndirect evidence	Kirchbichl, AustriaHQ checked Sep 3, 2026	11-50	10
	“Alles was das moderne Einfamilienhaus braucht.” Source: company website · checked Sep 3, 2026
13	Herzog Kälte & KlimaIndirect evidence	Graz, AustriaHQ checked Sep 3, 2026	51-200	9
	“KNOW-HOW & ERFAHRUNG AUS ÖSTERREICH Für Firmenkunden Wir setzen auf unsere langjährige Erfahrung und durchdachte Technologien.” Source: company website · checked Sep 3, 2026
14	Dilt AnalyticsPartial evidence	Graz, AustriaHQ checked Sep 3, 2026	11-50	8
	“DiLT Analytics leverages cutting-edge research to create highly innovative software solutions for intelligent buildings.” Source: company website · checked Sep 3, 2026
15	Stransky Heiz-Mess-Regeltechnik GmbhIndirect evidence	Terfens, AustriaHQ checked Sep 3, 2026	11-50	8
	“Seit der Gründung im Jahr 1992 hat sich technisch viel verändert - unser Leitbild ist jedoch dasselbe geblieben.” Source: company website · checked Sep 3, 2026
16	KGT Gebäudetechnik GmbhIndirect evidence	Feldbach, AustriaHQ checked Sep 3, 2026	51-200	8
	“Die KGT Gebäudetechnik GmbH ist eines der führenden österreichischen Unternehmen in den Bereichen Heizung, Lüftung, Sanitär, Klima, Elektro, Sprinkleranlagen und…” Source: company website · checked Sep 3, 2026
17	Harreither GmbhIndirect evidence	Gaflenz, AustriaHQ checked Sep 3, 2026	11-50	7
	Source: company website · checked Sep 3, 2026
18	Nxtcontrol GmbhPartial evidence	Wien, AustriaHQ checked Sep 3, 2026	11-50	7
	“Advance by efficiency - efficient engineering distributed systems nxtControl develops software products for the automation of buildings, machines, manufacturing lines and…” Source: company website · checked Sep 3, 2026
19	GTS Automation GmbhIndirect evidence	Bad Vöslau, AustriaHQ checked Sep 3, 2026	11-50	7
	“Das Unternehmen „GTS Automation GmbH“ ist ein produktunabhängiges Unternehmen mit Hauptsitz in Wien und Niederlassungen in Linz, Velden, Rumänien (Bukarest), Bulgarien (Sofia) und…” Source: company website · checked Sep 3, 2026
20	Engelmann Energiesysteme GmbhIndirect evidence	St. Nikola, AustriaHQ checked Sep 3, 2026	11-50	6
	“Behaglichkeit ist für jeden etwas anderes, doch ein optimales Raumklima bleibt doch immer Vorrausetzung dafür.” Source: company website · checked Sep 3, 2026
21	Small Wärme-, Klima- UND Sanitäranlagen GmbhIndirect evidence	Linz, AustriaHQ checked Sep 3, 2026	51-200	6
	“Firma "Small" in Linz und Wien ist ein in der Gebäudetechnik-Branche tätiges Installationsunternehmen für Heizung, Klima, Lüftung, Sanitär und Wartungsarbeiten.” Source: company website · checked Sep 3, 2026
22	Klima Michi GmbhIndirect evidence	An Der Drau, AustriaHQ checked Sep 3, 2026	11-50	4
	“Die Klima Michi GmbH ist ein Kälte- & Klimatechnik Unternehmen in Villach.” Source: company website · checked Sep 3, 2026
23	HMI MasterIndirect evidence	Graz, AustriaHQ checked Sep 3, 2026	11-50	4
	“Gebäudeautomation muss mitdenken.” Source: company website · checked Sep 3, 2026
24	EA Holding GmbhIndirect evidence	Obervogau, AustriaHQ checked Sep 3, 2026	51-200	3
	“Willkommen bei EA Holding GmbH - Ihrem Experten für Kälte, Wärme und erneuerbare Energien!” Source: company website · checked Sep 3, 2026
25	Priva Building Automation SwitzerlandIndirect evidence	AustriaHQ checked Sep 3, 2026	11-50	3
	“Priva Building Automation helps owners, developers and investors to build environments that make people feel better while using energy in the most sustainable manner possible.” Source: company website · checked Sep 3, 2026

Showing 25 of 107 hvac software development companies based in Austria

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Hvac software development companies based in Austria at a glance

As of Sep 3, 2026

11-50Median size (employees)

WienLargest hub · 14 HQs

36Contacts with mobile numbers

Sep 3, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Verified emails by last verification

0–30

31–60

61–90

314

90–180

188

180+

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 hvac software development companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Austria whose own description of what they do matches “hvac software development companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among hvac software development companies, 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 an evidence 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, 542 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 3, 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

How many hvac software development companies are there based in Austria?

RevenueBase identified 107 hvac software development companies 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?

Loxone, headquartered in Alberndorf In Der Riedmark, tops this list with the largest team on record.

Which city has the most hvac software development companies?

Wien leads with 14 headquartered companies, followed by Graz (8) and Linz (5).

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 542 verified decision-maker contacts tracked across these 107 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 3, 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 SmartSearch, 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.