SMRTコーポレーション
SMRT Trains Ltd (以前はSingapore MRT Ltd)
SMRT Investments Pte Ltd
SMRT Capital Ltd
SMRT Far East Ltd
SMRT International Pte Ltd
SMRT Engineering Pte Ltd
SMRT Road Holdings Ltd
SMRT Buses Ltd (以前はTrans-Island Bus Services Limited)
SMRT Taxis Pte Ltd (formerly TIBS Taxis Pte Ltd)
SMRT Automotive Services Pte Ltd (以前はTIBS Motors Pte Ltd)
Bus-Plus Services Pte Ltd (Bus-Plus)
SMRT Institute Pte Ltd
SMRT Cayman I
SMRT Cayman II
SMRT Hong Kong Limited
SMRT Engineering (Middle East) FZE
SMRT Properties
SMRT Media
Transit Link Pte Ltd