Fosen Trafikklag is a company operating buses and ferries in Trøndelag and Østlandet in Norway.

In total the company has approximately 750 vehicles and 16 ships, though numerous of them operate by subsidiaries.

[4] Bastø Fosen operates the ferries between Horten and Moss in the Oslo Fjord.

The parent company owns two travel agencies in the Berg-Hansen franchise, located in Trondheim and Brekstad.

[5] TrønderBilene is responsible for all the groups bus transport in Trøndelag and operates with concession from the counties of Nord-Trøndelag and Sør-Trøndelag.