Costa Mesa Bus Line - served Newport Beach, Costa Mesa.
Stephens Transportation - served Laguna Beach, Irvine.
West Orange Transit Co. - served Long Beach, Los Alamitos, Cypress, Buena Park.
Imperial Bus Line - existed in 1930's, served Santa Ana.
Pacific Coast Motor Coach Co. - existed in 1930's, Huntington Beach and Laguna Beach and Newport Beach.
Tustin Stage Line - existed in 1930's, served Santa Ana.