Drees & Sommer Switzerland is a consulting company providing a single source of consultation and implementation services for the real estate, infrastructure and industrial markets. The company delivers sustainable, innovative, and economically viable solutions that meet each client’s unique needs. Our almost 250 employees in Zurich, Basel and Lausanne have been supporting clients from a wide range of sectors since 2008. Drees & Sommer Switzerland is part of the Drees & Sommer Group, which was Founded in 1970 and long recognized as a pioneer in driving sustainability and digitization. Today Drees & Sommer employs more than 6,000 people at 63 offices.

Atelier Rickli GmbH is an interior design, architecture and construction management firm in its second generation. The company was founded in 1997 by Hansjörg Rickli. In January 2022 Luca Rickli took over the family business. Our services range from planning, color & material conception, costing to execution and final handover of the project to the client. Whether renovation, conversion or new construction, we turn the dreams and wishes of our clients into reality with attention to detail, cost-efficiently and on time.

Gruner All according to plan. Gruner is a leading engineering, design and planning consultancy in the construction industry. In the business areas buildings, infrastructure, and energy, we support our private and public clients in all project phases from strategic planning through construction to commissioning and management of buildings and infrastructure. In doing so, we combine services from a comprehensive range of competencies such as structural design, geotechnics, general planning, building services, energy production and distribution, road and rail construction, civil engineering, environment, safety, security, and spatial planning in order to offer optimal and sustainable solutions. With more than 1.100 highly qualified employees in over 30 offices in Switzerland, Germany, Austria, Serbia, Georgia, Turkey and Tajikistan, as well as at countless project locations worldwide, we are always close to the customer and where development and construction are taking place. Thanks to interdisciplinary cooperation, we set new standards in engineering methods and the application of digital processes. We are constantly evolving in step with our customers. Gruner is an independent family business headquartered in Basel/Switzerland and we are proud that we have been providing innovation and inspiration since 1862.