The company was founded as Scancopter-Service AS in 1956. In 1966 became involved in the oil industry and changed its name to Helikopter Service.
In 1984 bought Helitourist AS and in 1993 Braathens.
In 1996 changed its name to Helicopter Services Group when bought the British Bond Helicopters, Australian Lloyd Helicopters and South African Court Helicopters
In 1999 was bought by Canadian CHC becoming thus CHC Helikopter Service
On 2009 changed its name to CHC Norway, but on October 2010 changed back to CHC Helikopter Service.