Goodyear Engineering Corporation (HOP)
Liberty Powder Defense Corporation (Indiana Arsenal – combined operations at IOW and HOP)
Olin Matheson Chemical (Indiana Arsenal/Indiana Army Ammunition Plant)
ICI Americas Inc (Indiana Army Ammunition Plant)
Early Operating Contracts Utilized
W-ORD-458 (DuPont) – Contract for construction and operations throughout WWII until shutdown on January 1, 1946 and the plant was turned over to the government on February 11, 1946.
W-49-010-ORD-47 (DuPont) – Construction, reactivation, operation, and layaway of facilities for production of smokeless powder, DPA and DMA. January 3, 1052 to September 25, 1957.
W-ORD-498 (Goodyear) – Contract for construction and operation of propellant charge bag loading facility. Period: December 19, 1940 – February 15, 1946.
Government: February 16, 1946 to April 12, 1951.
Government/Contractor (Goodyear) – April 13, 1951 to June 30, 1952.
DA-11-173-)RD-98 (Goodyear) – Operation, and later layaway maintenance (September 1, 1957 – October 1, 1959). On March 1, 1959, Goodyear took over Standby Maintenance of the IOW.
DA-11-173-ORD-97 – Liberty Powder Defense Corporation – Standby Maintenance of the Indiana Arsenal on a Cost Plus Fixed Fee contract.