Company lists · Data refreshed September 2026

Top 25 Hvac software development companies based in Switzerland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 292 companies tracked

RevenueBase identified 292 hvac software development companies headquartered in Switzerland as of September 2026 and tracks 4,047 professional contacts across them, including 1,274 with verified work emails and 81 with mobile numbers. Zurich is the largest hub.

This list covers hvac software development companies headquartered in Switzerland, 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 Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review

292Companies

4,047Contacts tracked

1,274Verified emails

81Mobile numbers

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The 25 largest hvac software development companies based in Switzerland

Ranked by team size

Top 25 of 292 hvac software development companies based in Switzerland, 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	Zehnder Group International AGIndirect evidence	Graenichen, SwitzerlandHQ checked Sep 3, 2026	1,001-5,000	303
	“In over 70 countries we provide tailored services from planning to installation of excellent solutions for the best indoor climate since 1895.” Source: company website · checked Sep 3, 2026
2	Hoval SchweizIndirect evidence	Feldmeilen, SwitzerlandHQ checked Sep 3, 2026	201-500	187
	“Hoval – Verantwortung für Energie und Umwelt Die Marke Hoval zählt international zu den führenden Unternehmen für Heiz- und Raumklimalösungen.” Source: company website · checked Sep 3, 2026
3	CTA LTDIndirect evidence	Münsingen, SwitzerlandHQ checked Sep 3, 2026	51-200	149
	“Since 1981, we have been developing and producing high-performance, durable and resource-saving system solutions for heating and cooling all kinds of buildings.” Source: company website · checked Sep 3, 2026
4	Koster AGIndirect evidence	Zurich, Switzerland	201-500	73
	“Gebäudetechniker” Source: company website · checked Sep 3, 2026
5	RMB Engineering AGIndirect evidence	Zürich, SwitzerlandHQ checked Sep 3, 2026	51-200	65
	“Als führendes Ingenieur- und Planungsunternehmen in den Bereichen Gebäude, Energie- und Umwelttechnik realisiert die RMB Engineering AG massgeschneiderte Lösungen für…” Source: company website · checked Sep 3, 2026
6	Leicom AGIndirect evidence	Winterthur, SwitzerlandHQ checked Sep 3, 2026	51-200	60
	“LEICOM AG was founded in Winterthur, Switzerland, in 1996 by automation and control technology specialists.” Source: company website · checked Sep 3, 2026
7	Hunziker Partner AGIndirect evidence	Winterthur, SwitzerlandHQ checked Sep 3, 2026	51-200	42
	“Als führendes und mehrfach ausgezeichnetes Unternehmen der Haustechnik mit rund 100 Mitarbeitenden umfasst unsere Tätigkeit die Planung, Realisierung und Service von Heiz, Luft…” Source: company website · checked Sep 3, 2026
8	Aicher DE Martin Zweng AGIndirect evidence	6006 Luzern, SwitzerlandHQ checked Sep 3, 2026	51-200	41
	Source: company website · checked Sep 3, 2026
9	Chestonag Automation AGPartial evidence	Seengen, SwitzerlandHQ checked Sep 3, 2026	51-200	37
	“Automation für Mensch und Umwelt Als innovatives Ingenieur- und Software-Unternehmen entwickeln, projektieren und installieren wir kundenspezifische Automationslösungen für die…” Source: company website · checked Sep 3, 2026
10	IMI Hydronic EngineeringPartial evidence	Eysins, SwitzerlandHQ checked Sep 3, 2026	1,001-5,000	36
	“We are a leading global supplier of products and solutions for HVAC systems.” Source: company website · checked Sep 3, 2026
11	Viega Schweiz AGIndirect evidence	Chur, SwitzerlandHQ checked Sep 3, 2026	51-200	34
	“Unser Unternehmen zählt zu den wichtigsten Technologieführern der Installationsbranche.” Source: company website · checked Sep 3, 2026
12	dieklimamacher.chIndirect evidence	Arbon, SwitzerlandHQ checked Sep 3, 2026	51-200	31
	“Die Klimamacher AG stehen für Heizen, Lüften, Kühlen, sanitäre Installationen, Gebäude- und Prozesstechnik im vollumfassenden Sinne.” Source: company website · checked Sep 3, 2026
13	Services Plus Energies SAIndirect evidence	Bernex, SwitzerlandHQ checked Sep 3, 2026	51-200	31
	“Depuis 15 ans à votre service, Services Plus Energies est une entreprise spécialisée en Chauffage, Ventilation et Climatisation.” Source: company website · checked Sep 3, 2026
14	Tech-Insta SAIndirect evidence	Torricella-taverne, SwitzerlandHQ checked Sep 3, 2026	51-200	28
	“La Tech-Insta nasce a fine 1995 con un’operazione di “management buy-out” dalla Filiale di Lugano del gruppo tecnologico Sulzer, continuandone l’attività nel settore…” Source: company website · checked Sep 3, 2026
15	Muller EnergiesIndirect evidence	Meinier, SwitzerlandHQ checked Sep 3, 2026	51-200	26
	“Muller Energies SA est votre spécialiste dans la maintenance et l’optimisation énergétique de vos installations de chauffage, ventilation, et climatisation.” Source: company website · checked Sep 3, 2026
16	Winkenbach SAIndirect evidence	SwitzerlandHQ checked Sep 3, 2026	51-200	26
	“Winkenbach SA propose des solutions sur mesure en chauffage-froid, ventilation / climatisation et sanitaire pour bâtiments privés, publics et industriels.” Source: company website · checked Sep 3, 2026
17	Viscom Engineering AGIndirect evidence	Affoltern Am Albis, SwitzerlandHQ checked Sep 3, 2026	51-200	26
	“Viscom Engineering AG – Intelligenz für Ihr Gebäude.” Source: company website · checked Sep 3, 2026
18	Klinova AGIndirect evidence	8006, SwitzerlandHQ checked Sep 3, 2026	51-200	24
	“Die Klinova AG ist Ihr Systemprofi im Bereich der Gebäude, Energie- und Prozesstechnik.” Source: company website · checked Sep 3, 2026
19	TEM AGIndirect evidence	Chur, SwitzerlandHQ checked Sep 3, 2026	51-200	24
	“Über 50 Jahre Erfahrung in der Entwicklung und Produktion von Komponenten für die Gebäudeautomation.” Source: company website · checked Sep 3, 2026
20	Sigmatic AGIndirect evidence	Sursee, SwitzerlandHQ checked Sep 3, 2026	51-200	24
	“Sigmatic steht für nachhaltige Energiekonzepte.” Source: company website · checked Sep 3, 2026
21	Willi Gebäudetechnik AGIndirect evidence	Chur, SwitzerlandHQ checked Sep 3, 2026	51-200	24
	“Die Willi Gebäudetechnik AG mit Sitz in Chur wurde 1890 gegründet und ist vorwiegend im Kanton Graubünden tätig.” Source: company website · checked Sep 3, 2026
22	A. Baltensperger AGIndirect evidence	Zürich, SwitzerlandHQ checked Sep 3, 2026	51-200	22
	“Moderne Haustechnik aus einer Hand Vieles hat sich verändert, seit die Unternehmung im Jahr 1951 gegründet worden ist.” Source: company website · checked Sep 3, 2026
23	Gruenberg Partner AGIndirect evidence	Zurich, SwitzerlandHQ checked Sep 3, 2026	51-200	19
	“Dienstleistungen in der Energie- und Gebäudetechnik von der Idee bis zu deren Umsetzung.” Source: company website · checked Sep 3, 2026
24	Bichler Partner AGIndirect evidence	Wattwil, SwitzerlandHQ checked Sep 3, 2026	51-200	18
	“Bichler verbindet - alles mit allem Weil in Zukunft allem mit allem zusammenhängt, bringt Bichler zusammen, was zusammen gehört.” Source: company website · checked Sep 3, 2026
25	HSB Heizsysteme UND Brenner AGIndirect evidence	Reinach, SwitzerlandHQ checked Sep 3, 2026	51-200	18
	“HSB - Ihr kompetenter und zuverlässiger Partner, wenn es um Wärme geht.” Source: company website · checked Sep 3, 2026

Showing 25 of 292 hvac software development companies based in Switzerland

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Hvac software development companies based in Switzerland at a glance

As of Sep 3, 2026

11-50Median size (employees)

ZurichLargest hub · 19 HQs

81Contacts with mobile numbers

Sep 3, 2026Data refreshed

Companies by employee count

1-10

128

11-50

51-200

201-500

501-1,000

1,001-5,000

Verified emails by last verification

0–30

31–60

115

61–90

743

90–180

412

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 Switzerland 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 Switzerland 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, 1,274 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 Switzerland?

RevenueBase identified 292 hvac software development companies headquartered in Switzerland 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?

Zehnder Group International AG, headquartered in Graenichen, tops this list with the largest team on record.

Which city has the most hvac software development companies?

Zurich leads with 19 headquartered companies, followed by Winterthur (7) and Geneve (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 1,274 verified decision-maker contacts tracked across these 292 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.