They operate routes in the municipalities of Vinje, Tokke, Fyresdal, Kviteseid, Nissedal, Seljord and Bø in Telemark, and Åmli in Aust-Agder.

The company cooperates with Tide Buss on Haukeliekspressen, and operates the routes Telemarksekspressen and Grenlandsekspressen, all branded as NOR-WAY Bussekspress.

Telemark Bilruter have together with Setesdal Bilruter formed a joint subsidiary, Agder Buss, which operates regional traffic in eastern parts of Aust-Agder on a PSO contract from January 2015.

The first operation of a bus by a precessor was in 1910 when Fyresdal Automobilselskap bought a French La Buire.

[1] The largest owners of the company are Municipality of Vinje (16.8%), Sparebanken DIN (9.5%), Municipality of Fyresdal (7.9%), Morgedal AS (5.6%), Vrål Fossli (4.7%), Haugerød & Nilsen AS (3.9%), Tide ASA (3.7%) and Tinn Billag AS (3.4%).