Located in Crissier , in the dynamic area of Lausanne West , Clestra SA is a key player in modular partition systems and office space planning solutions in French-speaking Switzerland . As part of the Clestra Hauserman Group , the company supports architects , designers , corporate clients and property managers in the transformation of professional workspaces . All products developed by the Group are movable partitions or demountable wall systems , now considered an essential tool for designing, structuring and transforming modern office environments . Clestra office partitions offer flexibility , scalability and high acoustic performance , while maintaining a refined architectural design . From the very beginning, design has been a strategic pillar of Clestra’s R&D approach . Through close collaboration with architects and designers , the company continuously delivers innovative, customized office partition solutions that combine functionality , comfort and aesthetic excellence . In 2005 , the Clestra Hauserman Group , together with a team of forward-thinking architects, introduced pleinAir , a design-driven partition system that reflects a vision of open, bright and modular office spaces focused on well-being .