Lukas Bosshard, Head of Administration / Co-Founder
Severin Boser, Architect FH / Co-Founder
Christoph Kellenberger, Architect FH / Co-Founder
Christiane Agreiter, Architect ETH
Andreas Derrer, Architect FH / Co-Founder
OOS was founded in Zurich in 2000 by Andreas Derrer, Christoph Kellenberger, Lukas Bosshard and Severin Boser. Christiane Agreiter joined the management team in 2009 as partner. OOS handles projects in the fields of architecture, temporary architecture and spatial development. The firm is characterized by a transdisciplinary working method and a comprehensive perception of its tasks.