Sørlandsruta AS is a Norwegian bus company that operates in Western Agder. It was founded in 1951 in a merger of 13 companies.[1] The company has about 100 employees and operates on contract with Vest-Agder Kollektivtrafikk with base in Mandal. The most important route is Kristiansand - Mandal - Farsund - Flekkefjord that operates on a half-hour headway. The company is owned by the holding company Torghatten ASA who also owns Widerøe, Bastø Fosen, Norgesbuss, Trønderbilene and many more companies.