Founded by Rem Koolhaas in the 1970s OMA is today one of the leading architectural firms in the world. Fame came early, when in 1978 OMA won first prize in a competition for the extension of the Dutch parliament. A great many awards followed including Prize for Intensive Space Use awarded by the Dutch Government and the Architectural Institute of Japan's Award for the Best Building in Japan, Nexus World Housing.

OMA is very active in the United States, working on projects as diverse as the new Seattle public Library and the McCormick Tribune Campus Center in Chicago. OMA acts as consultant in redefining the corporate identity of the client in the context of the architectural process.

Works featured range from private residences to large scale urban planning and include the extension of the MoMA, New York; MAB-Tower, Rotterdam; Casa da Musica, Portugal; TGB (Very Big Library), Paris. Essay by Rem Koolhaas titled 'Junkspace'.