Watco Railroads
United States
- Alabama
- Alabama Southern Railroad (ABS)
- Alabama Warrior Railway (ABWR)
- Autauga Northern Railroad (AUT)
- Birmingham Terminal Railway (BHRR)
- Arkansas
- Arkansas Southern Railroad (ARS)
- Colorado
- Kansas & Oklahoma Railroad (KO)
-
- Idaho
- Boise Valley Railroad (BVRR)
- Eastern Idaho Railroad (EIRR)
- Great Northwest Railroad (GRNW)
- Palouse River & Coulee City Railroad (PCC)
- Louisiana
- Baton Rouge Southern Railroad (BRS)
- Dutchtown Southern Railroad (DUSR)
- Geaux Geaux Railroad (GOGR)
- Louisiana Southern Railroad (LAS)
- Timber Rock Railroad (TIBR)
- Mississippi
- Alabama Southern Railroad (ABS)
- Mississippi Southern Railroad (MSR)
- Vicksburg Southern Railroad (VSOR)
- Montana
- Mission Mountain Railroad (MMT)
- New Mexico
- Texas & New Mexico Railway (TXN)
- New York
- Ithaca Central Railroad (ITHR)
- North Carolina
- Blue Ridge Southern Railroad (BLU)
- North Dakota
- Yellowstone Valley Railroad (YSVR)
- Oklahoma
- Arkansas Southern Railroad (ARS)
- South Kansas & Oklahoma Railroad (SKOL)
- Stillwater Central Railroad (SLWC)
- Verdigris Southern Railroad (VESO)
- South Dakota
- Ringneck & Western Railroad (RWRR)
- Texas
- Austin Western Railroad (AWRR)
- Lubbock & Western Railway (LBWR)
- Pecos Valley Southern Railway (PVS)
- San Antonio Central Railroad (SAC)
- Texas & New Mexico Railway (TXN)
- Texas Coastal Bend Railroad (TCBR)
- Timber Rock Railroad (TIBR)
- West Virginia
- Kanawha River Railroad (KNWA)
- Wyoming
- Swan Ranch Railroad (SRRR)
AUSTRALIA
- West & East Coast
- Watco Australia
CANADA
- ONTARIO
- Agawa Canyon Railroad (ACR)