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responsAbility Investments AG 

Zurich · Since 2003

responsAbility Investments AG is an asset manager specializing in impact investing in emerging markets. It provides investment solutions for professional and retail investors across the themes of Financial Inclusion, Climate Finance and Sustainable Food, and integrates ESG risk assessment, impact measurement and technical assistance into its investment process.

responsAbility Foundation 

Zurich · Since 2024

responsAbility Foundation manages impact investments in emerging markets with a focus on financial inclusion, climate finance and sustainable food. It offers investment solutions for professional and retail investors, applies an impact and ESG framework, and manages fund mandates including acting as portfolio manager for the Swiss Investment Fund for Emerging Markets (SIFEM).

Rotary-Stiftung Zürich 

Zurich · Since 1984

The Rotary Club Zurich is a non-profit association whose core activity is to carry out humanitarian work and support social projects. The club organizes regular meetings and activities to network its members and pursue common goals. The club also supports the student and apprentice house and accepts donations to finance its humanitarian projects.

Ruckstuhl Bau und Elektroprojekt AG 

Zurich · Since 1994

Ruckstuhl Bau und Elektroprojekt AG provides electrical services including installations, repairs, maintenance and technical planning and consulting for private and commercial clients. Offerings include lighting, network and telematics, e‑mobility, photovoltaics, security systems and automation.

Ruckstuhl Elektro AG 

Zurich · Since 1978

Ruckstuhl Elektro AG is an electrical installation company providing maintenance, planning and consulting services in the electrical field. Its services include electrical installations, lighting systems, photovoltaics, e‑mobility, security systems, network and telematics, and automation.

Sanitär Sprenger + Hauser AG 

Zurich · Since 2009

The core activity of Sanitär Sprenger + Hauser AG is the provision of sanitary technical services, particularly in the areas of: Sanitary installations (e.g. bathrooms, kitchens), Heating installations and renovations, Repair and maintenance work for sanitary systems and heating systems, Emergency service and 24-hour service. The company also offers planning and coordination services for construction projects and advises customers on building technology issues.

Sansec AG 

Zurich · Since 2013

The core activity of Sansec AG is solving moisture problems in buildings. This includes: Water damage: Sanitation and drying after water damage, Insulation drying: Drying of insulation layers in buildings, Building drying: Drying of buildings after construction or renovation work, Leak detection: Detection of leaks and moisture ingress in buildings, Moisture expertise: Consulting and expertise in moisture problems, Sales of drying equipment: Sales of equipment for drying buildings and insulation layers.

Schenkel Vermessungen AG 

Zurich · Since 1983

The core activity of Schenkel Vermessungen AG is the provision of surveying services, particularly in the field of geomatics, for construction projects. The company offers precision surveying and other services to meet the professional demands of builders and architects.

Schreinerei Kessler AG 

Zurich · Since 2017

The core activity of Schreinerei Kessler AG is the manufacture and distribution of high-quality wood products, particularly in the field of interior finishing, such as kitchens, doors, windows and furniture, as well as the provision of services in the field of carpentry, such as repairs and renovations.

Schuler Consulting 

Zurich · Since 2022

Schuler Consulting provides accounting and payroll administration, tax services, external CFO and temporary representation services, and training for companies and private clients.