- TD-1A
- LISÃTÃ
- TDA-aseet
- TDC
- TDC (yritys)
- TDD (tietoliikenne)
- TDE
- TDECU-stadion
- TDF
- TDF 1 ja 2
- TDI
- TDI (moottori)
- TDK
- TDK Electronics
- TDK Mediactive
- TDK Mediactive Europe
- TDM
- TDMoEthernet
- TDMoIP
- TDMoMPLS
- TDP
- RDT
- TDS Racing
- TD Ameritrade
- TD Ameritrade Park
- TD Canada Trust Tower
- TD Canada Trust Tower (Calgary)
- TD-puutarha
- TD Place Arena
- TD-torni