gammaRenax is a powerful
Quality provider of integral facility services

Facility Services throughout Switzerland

Severin Gallo, CEO

Severin Gallo

Owner and CEO
graduate civil engineer
"Versatility, flexibility and customer focus are key characteristics of our understanding of service."
Our customers are the focus of our commitment.

gammaRenax is an efficient quality provider of integral facility services with more than 1,800 employees at 16 locations in all parts of the country. With an annual turnover of over CHF 67 million, the owner-managed company is one of the most important facility services providers in Switzerland and manages a portfolio of over 2,000 properties.

The trend towards bundling facility services and integrated management contracts continues. In close cooperation with our clients, we respond flexibly to changing, individual requirements, optimize the overall offering and pass on the resulting price advantages. In doing so, both our culture of innovation and service and our process orientation come to bear - and benefit our customers.

Our certified management system, which records the processes in an action-oriented manner, proves itself in daily work. The "facilityGate" developed by gammaRenax, an interactive online tool for performance management, was expanded to include CAD functionality. This allows us to reliably map the performance targets agreed with the customer in the virtual world and to meet them at a consistently high level.

Mit Kompetenz und Begeisterung setzen wir uns 365 Tage im Jahr dafür ein, die Erwartungen unserer Kunden zu übertreffen. Grossen Wert legen wir dabei auf eine transparente Kommunikation und den respektvollen Umgang mit allen Ansprechpartnern.



gammaRenax constantly and flexibly adapts its services to the needs of its customers

Dienstleistung Hygiene


Dienstleistung Areal und Pflanzen

Area & Plants

Dienstleistung Gebaeude und Technik

Technology & Buildings

Dienstleistung Infrastruktur und Dienste

Infrastructure & Services

Here you can find us



Hauptsitz Zürich Nord Zürich Süd Espace Mittelland Nordwestschweiz Zentralschweiz Tessin Nordostschweiz Nordostschweiz Engadin KWZ AG Tessin Romandie




Peroxide cold fogging

Coronabusters: Room disinfection with peroxide cold fogging Up to now, we have offered our customers surface disinfection using DesiClean-5%. This is still recommended. However, in order to achieve a complete disinfection of all surfaces

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LED City

LEDCity December 2020 gammaRenax switches to the "lighting of the future"... Read project description

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Sustainability management Interview with Severin Gallo

Nachhaltigkeitsmanagement, Artikel Rationell reinigen – Österreich / Februar 2019 Herr Gallo, ist Nachhaltigkeitsmanagement zur Chefsache geworden?Definitiv! Nachhaltigkeit gehört auf die Agenda der Geschäftsleitung… Nachhaltigkeitsmanagement Interview

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Construction team with many talents

Bauteam, Opera st. Moritz La Gazetta Opera St. Moritz / Juni 2016 Vielseitigkeit, Flexibilität und Kundenfocus sind wesentliche Merkmale unseres Dienstleistungsverständnisses. Lesen

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Innovative partner: Efficient facility management

 - At the Kongresshaus Zurich, tradition and innovation merge to create a holistic experience. The same applies to the family-run facility management company gammaRenax, which will be responsible for the operational maintenance of the Tonhalle and Kongresshaus Zurich in the future.




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