Malleable Iron Fittings Company, Third Rail and other Castings.
Mayer & Englund Company, Rail Bonds.
Mitchell Vance Company, Passenger Station Electric Light Fixtures.
National Conduit & Cable Company, Cables.
National Electric Company, Air Compressors.
Nernst Lamp Company, Power Station Lighting.
Okonite Company, Cables.
Prometheus Electric Company, Passenger Station Heaters.
Roebling's Sons Company, J. A., Cables.
Reconstructed Granite Company, Third Rail Insulators.