Additional bus companies, listed as existing during 1930's, are mentioned in the WPA American Guide Series of state guidebooks.
Suburban and interurban bus companies listed in the Russell's Official National Motor Coach Guide, which was primarily a resource for intercity bus lines.
Inter City Transit Lines (to Santa Fe, until 1976)
Armijo Bus Co. - connected Albuquerque with Armijo, Atrisco.
Interstate Busses - existed in 1930's.
Isleta Bus Line - connected Albuquerque with Pajarito, Los Padillas, Isleta.
Suburban Bus Lines - connected Albuquerque with Sandoval.
In 1948, Suburban Bus Lines became a subsidiary of Albuquerque Bus Co., serving the city. And during the 1950's, Suburban Bus Lines replaced Armijo Bus Co. and Isleta Bus Line, which had been under common ownership, and which ceased operations. Additional information on these Albuquerque area operations is available in the July-September 1997 issue of the magazine "Motor Coach Age".