itschi is a modular swiss furniture system. We follow the idea that even locally and sustainably produced wooden furniture can be stylish, high quality and affordable. Thanks to the simple and resource-saving construction method, our solid wood furniture looks light and airy. All furniture modules are manufactured in collaboration with local businesses in Zurich.

TSW Kummer Systemwände GmbH is your experienced partner for office planning, office fit-out, and modern workspace solutions in Switzerland . The company specializes in partition wall systems, glass partitions, room-in-room solutions, acoustic solutions, and flexible office design to create productive and efficient work environments. From individual office planning and office renovation to office expansion and complete office furnishing , TSW Kummer delivers tailored solutions for companies of all sizes. A strong focus is placed on acoustics, lighting, materials, and flexible space organization , ensuring modern workspaces that support both concentration and collaboration. The portfolio includes: • Partition walls & glass partitions (single and double glazing) • Sliding walls and modular wall systems • Work pods, phone booths, and meeting pods • Think tank and room-in-room solutions • Acoustic solutions such as ceiling baffles and wall panels • Office fit-out, renovation, and workspace optimization A key highlight is the showroom in Dübendorf (Zurich area) , where clients can experience innovative office and acoustic solutions firsthand. Visits are available by appointment and offer the opportunity to explore materials, systems, and concepts in a real environment. With extensive experience, high-quality standards, and personalized consulting, TSW Kummer supports businesses from concept to completion—creating modern, flexible, and future-ready workspaces.