Pennsylvania Clairton Street Railway Coal Castle Electric Railway Coatesville Traction Company Collegeville Electric Street Railway Colonial Street Railway Columbia and Montour Electric Railway Conestoga Traction Company Conneaut and Erie Traction Company Conshohocken Railway Consolidated Traction Company Continental Passenger Railway Corry and Columbus Street Railway Cumberland Railway Danville and Bloomsburg Street Railway Danville and Sunbury Transit Company Delaware County and Philadelphia Electric Railway Doylestown and Easton Street Railway Doylestown and Willow Grove Railway DuBois Traction Company Duquesne Traction Company East End Passenger Railway East McKeesport Street Railway East Reading Electric Railway Easton and Bethlehem Transit Company Easton, Palmer and Bethlehem Street Railway Easton and South Bethlehem Transit Company Easton Transit Company Electric Traction Company Empire Passenger Railway Ephrata and Adamstown Railway Erie Electric Motor Company Erie Rapid Transit Street Railway Erie Traction Company Fairchance and Smithfield Traction Company Fairmount Park and Haddington Passenger Railway Fairmount Park Transportation Company Federal Street and Pleasant Valley Passenger Railway Frankford and Southwark Philadelphia City Passenger Railway French Point Street Railway Front and Fifth Streets Railway Germantown Passenger Railway Gettysburg Electric Railway Girard Avenue Passenger Railway Green and Coates Streets Passenger Railway Hagerstown Railway Hanover and McSherrystown Street Railway Harrisburg City Passenger Railway Harrisburg and Hummelstown Street Railway Harrisburg and Mechanicsburg Electric Railway Harrisburg Traction Company Heston, Mantua and Fairmount Passenger Railway Highland Grove Traction Company Hillcrest Avenue Passenger Railway Holmesburg, Tacony and Frankford Electric Railway Homestead and Mifflin Street Railway Hummelstown and Campbellstown Street Railway Huntingdon, Lewistown and Juniata Valley Traction Company Huntingdon Street Connecting Passenger Railway Irwin–Herminie Traction Company Jefferson Traction Company Jersey Shore Electric Street Railway Johnstown Passenger Railway Johnstown Traction Company Kessler Street Connecting Passenger Railway Kittaning and Leechburg Railways Kutztown and Fleetwood Street Railway Lackawanna Valley Traction Company Lackawanna and Wyoming Valley Railroad (L&WV) Lake Erie Traction Company Lancaster and Columbia Railway Lancaster, Mechanicsburg and New Holland Railway Lancaster, Petersburg and Manheim Railway Lancaster and Quarryville Street Railway Lancaster and Rocky Springs Railway Lancaster and Southern Street Railway Lancaster, Willow Street, Lampeter and Strasburg Railway Lancaster and York Furnace Street Railway Latrobe Street Railway Lebanon Valley Street Railway Lehigh Avenue Railway Lehigh Traction Company Lehigh Valley Transit Company Lewisburg, Milton and Watsontown Passenger Railway Lewistown and Reedsville Electric Railway Linglestown and Blue Mountain Street Railway Lykens and Williams Valley Street Railway Mahoning Valley Street Railway Meadville and Cambridge Springs Street Railway Meadville Traction Company Media, Glen Riddle and Rockdale Electric Street