Third Avenue Railway Co. 1908 Third Avenue Railroad Co. → 1910 Third Avenue Railway Co. → 1942–1947 Third Avenue Transit Co.
[conduit and storage battery cars of TARS are listed here | Carhouses: Amsterdam Ave., 54th St., 65th St.]
Union Railway / Third Avenue Railway System 1892 Union Railway Co. → 1942–1948 Third Avenue Transit Co.
[overhead wire cars of the Union Railway and TARS are listed here | Carhouses: Harlem, Kingsbridge, West Farms]