OBAYASHI CORPORATION (OVERSEAS BUSINESS DIVISION)
OBAYASHI CORPORATION PRIVATE LIMITED
OCEANIC OFFSHORE ENGINEERING PTE LTD
OCEANMASTER ENGINEERING PTE LTD
O'CONNOR'S SINGAPORE PTE LTD
OCS FACILITIES MANAGEMENT SINGAPORE PTE LTD
ONG & ONG PTE LTD
Scope:Architectural consultancy and construction supervision services.