After 1900 - Burnside Tramway Co.
1891-1909 - Lake Charles Street Railway
1909-1924 - Lake Charles Railway Light & Waterworks Co.
1924-1925 - Lake Charles Electric Co.
1925-1929 - Eastern Texas Electric Co. (Stone & Webster)
1929 - streetcars discontinued
After 1929 - Lake Charles Transit Co.
Prior to 1967 - Lake Charles Bus Co.
1915-1918 - St. Tammany & New Orleans Railway & Ferry Co.
1918 - streetcars discontinued
After 1891 - Southwestern Traction & Power Co.
Private bus co. in 1952 - La Porte Bus Lines
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.
Abbeville - Abbeville Bus Service
Bogalusa - Bogalusa City Lines
Lafayette - Lafayette Transit Co.
Opelousas - City Bus Line
Pineville - Pineville Bus Co.
West Monroe - West Monroe Bus Co.