TREOS specialises in comprehensive services for property maintenance and facility management. TREOS looks after your property ... throughout its entire useful life, thus maintaining its value. We are a leader in the operation of technically sophisticated, complex buildings such as shopping centres, office complexes, and commercial and residential properties. TREOS stands for a long-term partnership with owners, users, and tenants. We look after each property as if it were our own. With TREOS as part of its corporate group, the INVESTIS Group is committed to comprehensive facility management throughout Switzerland. TREOS offers all services concerning your property from a single source. With more than 20 years of experience in technical and infrastructural building care, we know that only a holistic approach can effectively optimise quality and costs. Our client- and solution-oriented employees are committed to the expectations of the owners, the users, and the tenants. As an independent partner, TREOS can provide you with professional high-quality in all facility management services. In order to retain our position as market leader we continually develop ourselves. We continually perfect our solutions through innovation, discipline, and passion. We look forward to presenting the TREOS solution for your property. read more