Studio O+A is a San Francisco-based design consultancy, specialising in the interior design of commercial environments. Formed in 1991 by co-founders Primo Orpilla and Verda Alexander, the studio offers a complete design service, including workplace visual strategy for large clients including Microsoft, Uber and Nike.

Pictured above is the newly completed McDonald’s Headquarters in Chicago, designed by the firm with the changing work and life styles of employees in mind.