Bilruta Frosta–Åsen AS is a defunct bus company based in Frosta Municipality, Norway. It operated the route from Frosta to Åsen, and onwards north to Levanger. The company was bought by TrønderBilene on 1 December 1999 from Frode Revhaug.[1] In 2005 TrønderBilene and Bilruta Frosta–Åsen merged; at the time Bilruta had 17 employees.[2]