Bedrift T - Krokkleiva
- Tygk AS
- Tiurtoppen AS
- Tyrifjord Båtcruise DA
- Torvfestens Venner AS
- Tove Hirth
- Torill Næss
- Touch Wood AS
- Third Wave AS
- Trent Capital AS
- Tvebo Holding AS
- Tgb Holding AS
- Ts Skog AS
- Tyrifjord Golfklubb
- Tyrifjord Golfklubb AS
- Tante Pose AS
- Tvebo Eiendom AS
- Tolpinruds Racing Service
- Tømrermester Jonas Lassen
- Tore Øverås Oslo AS
- Trym L Holding AS
- T.A.Rognerud Lamoudru
- The Magic Touch Norway AS
- Thomas Topp Maling og Oppussing Orzechowski