Philadelphia Transportation Co. 1895 Union Traction Co. → 1902 Philadelphia Rapid Transit Co. → 1940 Philadelphia Transportation Co. C 1968 в составе Southeastern Pennsylvania Transportation Authority
Frankford Tacony & Holmesburg Electric Railway Co. 1890 Holmesburg Tacony & Frankford Electric Railway Co. → 1910–1926 Frankford Tacony & Holmesburg Electric Railway Co. C 1926 в составе Philadelphia Rapid Transit
Philadelphia Suburban Transportation Co. 1895 Philadelphia & West Chester Traction → 1936 Philadelphia Suburban Transportation Co. C 1970 в составе Southeastern Pennsylvania Transportation Authority
Philadelphia & Western Railroad Co. 1907 Philadelphia & Western Railway Co. → 1946 Philadelphia & Western Railroad Co. C 1954 в составе Philadelphia Suburban Transportation Co