1902-1907 - Northern Texas Traction Co.
1907-1934 - Northern Texas Electric Co.
Interurban lines:
Dallas-Fort Worth (1902-1934)
Also operated local service in Fort Worth.
Replacement bus companies:
Texas Motor Coaches (1927-1980)
Transportation Enterprises (1980-1983)
Texas Bus Lines (1983-1987)
North Texas Bus Lines (1987-1991)
Kerrville Bus Co. (1991-1992)
1912-1914 - Fort Worth Southern Traction Co.
1914-1931 - Tarrant County Traction Co.
Interurban lines:
Fort Worth-Cleburne (1912-1931)
1923-1941 - Roby & Northern Railroad
Interurban lines:
Roby-Roby Jct. (1923-1941)