T
- Tailor Store
- Tarsan & Toserne
- TDC
- TDC Totalløsninger
- Telenor
- TelePrisjek
- telia
- Tellio
- Telmore
- Terminal A
- Texas
- The Economist
- The Wall Company
- The West
- Tiger of Sweden
- Tojeksperten
- TomTom
- Topman
- TradeDoubler
- transavia
- Travellink
- Travelmarket
- Travelstart
- Trend Micro
- Trendhim
- Tribal Wars
- Triumph
- TriviCell
- Tv-Shop
- TV3Casting
- Two for one
- Tyremate