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Roth Management AG 

Uster · Since 1998

The core activity of Roth Management AG is the rental of rental spaces and the management of real estate.

R/TV Burkhardt AG 

Uster · Since 1999

The core activity of R/TV Burkhardt AG is the sale, consulting, planning, installation and repair of entertainment electronics products such as TVs, hi-fi systems, satellite systems and other digital devices. The company also offers after-sales services such as maintenance, upkeep and repairs to ensure optimal and cost-effective service support for its customers.

Rubix Switzerland AG 

Uster · Since 2024

Rubix Switzerland AG supplies industrial components and provides services for industry, including rolling bearings, linear motion systems, conveying and drive technology, as well as plastics and sealing solutions. Its offering also includes spare-parts supply, assembly and maintenance, condition monitoring, inventory and procurement management, on-site INSITE support and emergency service.

Rudolf Streuli Marketing + Kommunikation 

Uster · Since 1998

Rudolf Streuli Marketing + Kommunikation provides fundraising and marketing services, including fundraising strategy, the development of detailed concepts and budgets, and support with implementation. Services include taking on specific fundraising tasks (e.g., acquisition and stewardship of major donors, planning and executing mailings), coaching, evaluation and agency briefing, personnel selection for fundraising roles, temporary assignments and troubleshooting, supported by a network of external specialists.

Rüegsegger Acoustics 

Uster · Since 2000

The company primarily deals with the sale and repair of loudspeakers and related components, such as drivers, crossovers, and speaker enclosures. It also offers replacement parts and accessories for loudspeakers. In addition, the company distributes electrical and electronic components, such as switches, relays, and light bulbs. Another core activity is the repair of loudspeakers, where the company also offers specialized services such as the creation of prospectuses and manuals.

ryffel + ryffel ag 

Uster · Since 2013

The core activity of ryffel + ryffel ag is the planning and design of outdoor spaces, particularly for public buildings such as school facilities, outdoor facilities for nursing homes and hospitals, cemetery facilities, square and street space design, as well as environmental planning for residential developments. In addition, the company also offers garden monument preservation reports and planting plans for private gardens.

Salzmann ImmobilienAnalyse 

Uster · Since 2014

The core activity of Salzmann ImmobilienAnalyse is the commercial analysis and valuation of real estate. This includes conducting financial flow analyses, income value, asset value and cash flow valuations, as well as determining life cycle costs and returns. The company supports customers in evaluating real estate investments, determining profitability and developing sustainability strategies.

Sanitas24 GmbH 

Uster · Since 2012

Sanitas24 is an online retailer specializing in cosmetics, particularly products containing snail slime extract. The company's core activity is the marketing and sale of skin care products, such as creams, gels, and other care products developed on the basis of snail slime extract.

SauberHome-Reinigungen Strasser 

Uster · Since 2022

The core activity of SauberHome is the provision of cleaning services, including: housekeeping, cleaning of apartments and office spaces, construction cleaning, and moving cleaning. The company offers flexible, reliable, and discreet services for small and medium-sized enterprises as well as private households.

Sauber Group Gebäudereinigung GmbH 

Uster · Since 2016

The core activity of Saubergroup GmbH is the provision of professional cleaning services for commercial, corporate, industrial and private customers. This includes in particular: interior and exterior cleaning of premises, glass and window cleaning, janitorial services and minor repairs, office and practice cleaning, and household cleaning services. The company uses environmentally friendly and biodegradable products and offers a 100% service guarantee.