OMA | 341,324 followers on LinkedIn. OMA is an international practice operating within the traditional boundaries of architecture and urbanism. AMO, a research and design studio, applies architectural thinking to domains beyond. OMA is led by seven partners – Rem Koolhaas, Reinier de Graaf, Shohei Shigematsu, Iyad Alsaka, Chris van Duijn, Jason Long, and Managing Partner – Architect David Gianotten – and maintains offices in Rotterdam, New York, Hong Kong and Australia.