- TD-1A
- AGREGAR
- Armamentos TDA
- TDC
- TDC (empresa)
- TDD (telecomunicaciones)
- TDE
- Estadio TDECU
- TDF
- TDF 1 y 2
- TDI
- TDI (motor)
- TDK
- TDK Electronics
- TDK Mediactive
- TDK Mediactive Europa
- TDM
- TDMoEthernet
- TDMoIP
- TDMoMPLS
- RDT
- TDS Racing
- TDT
- TD Ameritrade
- TD Ameritrade Park
- TD Canada Trust Tower
- TD Canada Trust Tower (Calgary)
- TD Garden
- TD Place Arena
- TD Tower