This company started in 1947 as Okanagan Air Services. In 1949 they changed the name is Okanagan Helicopters Ltd.
In 1987 merged into CHC
First Transatlantic Flight by Civilian Helicopter, 31-May-17 : CHC (then Okanagan) and Sikorsky celebrated the 52nd anniversary of the first transatlantic ferry flight by a civilian helicopter, a S-61N, which was also the first unescorted crossing by helicopter
CHC Celebrates 70 Years, 31-Jan-17 : CHC announced the beginning of a year-long celebration of it 70-year history since beginnings as a crop dusting operation in British Columbia in April of 1947 as Okanagan Air Service