Mun Summ Wong co-founded the Singapore-based architectural practice WOHA in 1994. He is a Professor in Practice at the National University of Singapore's Department of Architecture and co-directs the Integrated Sustainable Design Masters Studio. He is also appointed to the Seidler Chair in the Practice of Architecture at the University of New South Wales in Sydney, Australia. He sits on the Nominating Committee of the Lee Kuan Yew World City Prize, the Design Advisory Board of Design Singapore Council as well as a Member of the CTBUH Masters of Tall Building and Vertical Urbanism Advisory Panel.

WOHA projects are living systems that connect to the city as a whole. With every project, the practice aims to create a matrix of interconnected human-scaled environments that foster community, enable stewardship of nature, generate biocentric beauty, activate ecosystem services and build resilience. WOHA apply their systems thinking approach to architecture and urbanism in their building design as well as their regenerative masterplans. WOHA received a number of architectural awards such as the Aga Khan Award for One Moulmein Rise as well as the RIBA Lubetkin Prize and International Highrise Award for The Met in Bangkok. The practice was awarded the CTBUH Urban Habitat and Best Mixed-Use Building and World Architecture Festival World Building of the Year for Kampung Admiralty and CTBUH Best Tall Building Worldwide for the Oasia Hotel Downtown.

Mun Summ is currently leading projects slated for completion, such as BRAC University in Dhaka, Bangladesh (2023), Pan Pacific Orchard (2023), Punggol Digital District and SIT campus in Singapore (2025).