After 1891 - South Calera Street Railway Co.
Prior to 1904 - Decatur Street Railway
After 1904 - North Alabama Traction Co.
Private bus co. in 1952 - Decatur Transit
1891-1904 - Sheffield Street Railway Co.
1904-1924 - Sheffield Co.
1924-1929 - Alabama Power Co. (Southeastern Power & Light Co.)
1929-1933 - Alabama Power Co. (Commonwealth & Southern Corp.)
1933 - streetcars discontinued
Prior to 1941 - Burns Transportation Co.
1941-1950 - Shoals Transit
1950-1960 - Shoals Transit (American Transit Corp.)
Streetcar co. - Opelika & Auburn Electric Railway
Private bus co. in 1952 - Tiger Bus Co.
After 1866 - Selma Street & Suburban Railway
Private predecessor bus co. - Selma Bus Lines
Streetcar co. - Union Springs Street Car Co.
Streetcar companies are mentioned in the Moody and the Poor investment manuals, and "The Trolley And Interurban Directory", by Joseph Gross. But it is possible, that some of these streetcar systems with dates missing failed to be completed, and were never actually operated.
Dothan - Dothan Bus Co.
Phenix City - Randall Bus Line
Sylacauga - City Bus Lines
Valley - Valley Transit