Petroleum Air Services was created in 1982.
Petroleum Geo-Services was created in 1991.
Brock Air Services was created in 1978.
Aeropelican Air Services was created in 1968.
Austrian Air Services was created in 1980.
Hebridean Air Services was created in 1995.
Morton Air Services was created in 1945.
Dove Air Services was created in 2007.
Ryan Air Services was created in 1953.
Freedom Air Services was created in 1998.
Pelican Air Services was created in 2001.
Railway Air Services was created in 1934.
Culebra Air Services was created in 1998.