• Cahokie Marine Service
• Cumberland Mine RR
• DeBruce Grain Inc.
• Detroit Edison Company
• Granite City Steel
• IBCX - Indiana Box Corporation
• INCO Rail (Link)
• Kennecott Copper (Link)
• Midwest Transload
• Montana Limestone Company
• Simpson Timber Company
• Southern Peru Copper Company
• Transportation Test Center: Pueblo
• U.S. Gypsum (California)

• USAF - U.S. Air Force
• USN - U.S. Navy

Railway Contractors

• Harsco - Rail Maintenance Services
• Herzog Railroad Services
• LMIX - Loram Maintenance of Way, Inc.

Miscellaneous (One or Two-Unit) Rosters

• Independent Rail Operators (A to L)
• Independent Rail Operators (M to Z)

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