The company had a contract with Troms county municipality to provide transportation services.
[1] In 2008, Tromsbuss was merged with TIRB and Ofotens Bilruter to form Cominor [no].
Bus transport in Tromsø started in 1946 by the municipal owned ferry company Tromsøya Buss- og Ferjeselskap.
After the Tromsø Bridge opened in 1960 the company withdrew from ferry transport and changed its name to Tromsbuss.
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