Holding company in
Steinach

IQAir Holding AG

Since 2014 · 1–10 empl.·4.3(14)

IQAir Holding AG develops and sells air‑quality technologies and products, including room air purifiers, air‑quality monitors, replacement filters and face masks. The company also provides air‑quality data, an app for real‑time monitoring and commercial solutions for managing indoor and outdoor air quality.

STI Surface Technologies International Holding AG

Since 1957 · 1–10 empl.·4.1(22)

STI Surface Technologies International Holding AG is a company in surface technology that provides industrial coating and surface treatment services. Its offerings include electroplating, thermal coatings, mechanical processing, painting, conversion and combination layers, the STI Dry Coat System, as well as services such as repairs, logistics, consulting and research & development, serving sectors like automotive, aviation, paper, film and general industries.

Variosystems Holding AG

Since 2014 · 1–10 empl.·5.0(1)

Variosystems Holding AG is a provider of electronic manufacturing and services, offering development, industrialization, series production and life-cycle management. Its services include engineering and rapid prototyping, PCB assembly, cable-harness production, procurement, and test and quality engineering for markets such as Medtech & Life Science, Aerospace & Defense, Industrial & Automation, Mobility & Transport and Smart Infrastructure & Environment.

Trunz Holding AG

Since 2007 · 1–10 empl.·3.8(6)

Trunz Holding AG is part of the Trunz Group, whose business areas include metal technology, vehicle technology and water systems. The group’s companies develop and manufacture assemblies and system solutions, as well as equipment for decentralised drinking-water and electricity supply using renewable energy.

Peterer Holding AG

Since 2025 · 1–10 empl.

Peterer Holding AG is a construction company that provides services in renovation and remodeling, customer-specific works, building construction, and civil engineering. Its work includes projects in structural and civil construction as well as canal, utility line, and access-area works.

MH Finanz GmbH

Since 2001 · 1–10 empl.

Opima AG

Since 2005 · 1–10 empl.

Gabriel Holding GmbH

Since 2007 · 1–10 empl.

ROTISA Holding AG

Since 2009 · 1–10 empl.

RIC Immobilien AG

Since 2011 · 1–10 empl.

SSP Invest AG

Since 2014 · 1–10 empl.

RSZ value AG

Since 2019 · 1–10 empl.