In the first years of private practice David Hotson began a long period of collaborations with Yale classmate Maya Lin, acting as the executive architect on a series of projects that she attracted as her Vietnam Veterans Memorial –designed while she was an undergraduate at Yale- was completed to wide acclaim.  From these early experiences the office has developed an extensive track record of working in collaboration with artists, designers, and other architects to execute projects with demanding detailing and progressive design values.  These have included collaborations with noted architects such as David Adjaye of London, Santiago Calatrava of Valencia and Zurich, Ricardo Legorretta of Mexico City, and other architects, artists, and designers based in the US, the UK, the Netherlands, Germany, France, Spain, Switzerland, Hungary, Armenia, and Japan.  

Among these international collaborations was the renovation of the Offices of the Secretary General of the United Nations, for which David Hotson was the executive architect.