The Office for Metropolitan Architecture (OMA) is a renowned international architectural firm with a diverse portfolio that spans across continents. Founded in 1975 and headquartered in Rotterdam, Netherlands, OMA operates under the leadership of eight partners, including Rem Koolhaas, Reinier de Graaf, and Ellen van Loon.

OMA is distinguished by its innovative approach to architecture and urbanism, which emphasizes research and collaboration. The firm's design process involves extensive brainstorming sessions, workshops, and collaborations with clients, engineers, and other experts to ensure that all aspects of a project are thoroughly integrated.

The firm's portfolio includes a wide range of projects, from cultural institutions to commercial buildings. Notable works include the Seattle Central Library, which earned a national American Institute of Architects Honor Award for Architecture in 2005, and the Casa da Música in Porto, Portugal, which has been praised for its intellectual and sensual beauty.

OMA maintains offices in Rotterdam, New York, Hong Kong, Doha, and Australia, reflecting its global reach and commitment to diverse architectural projects. The firm's current projects include the Taipei Performing Arts Center, the Feyenoord Stadium in Rotterdam, and the New Tretyakov in Moscow, among others.

With a focus on intelligent forms and practical solutions, OMA continues to redefine architectural typologies and push the boundaries of contemporary architecture. Through its collaborative and research-driven approach, OMA has established itself as a leading force in the architectural world.