This paper examines the location patterns of and the reciprocal relationships between corporate location and office market in Metropolitan Shanghai. Corporate location is viewed a reflection of the globalization process in which metropolitan economies are restructured and firms relocate. Office market is a product of municipal development planning and market interactions. By applying GIS mapping and statistical analysis tools on data about Shanghai Company Directory, census publications, and primary materials gathered from field reconnaissance surveys, it is found that multiple fragmented corporate clusters emerged in Shanghai. The office market was developed in close connection to the evolving corporate clusters. Further case studies of selected office clusters show that municipal development planning, domestic and global market influences interplayed in shaping the magnitude, function, and yield of office development.