ATSF
| Atchison Topeka & Santa Fe | 1 |
CR
| Conrail | 4 |
CSX
| CSX Railroad | 10 |
GALX
| Georgia Power Company | 1 |
GCCX
| General American Marks Company | 2 |
GNFX
| City of Gainesville Florida | 1 |
HCSX
| Helm Chesapeake LLP | 2 |
HLMX
| Helm Financial Corporation | 6 |
HYWX
| Georgia Power Company | 1 |
ITFX
| INFINITY TRANSPORTATION III LLC | 1 |
JTSX
| Joseph Transportation Incorporated | 1 |
MWCX
| Midwest Railcar Corporation | 1 |
NS
| Norfolk Southern | 2 |
NW
| Norfolk & Western | 1 |
NYC
| New York Central | 1 |
OUCX
| Orlando Utilities Commission (Fla.) | 1 |
PMRX
| Progress Metal Reclamation Company | 1 |
PRSX
| Progress Rail Service | 2 |
SCL
| Seaboard Coast Line | 1 |
SOU
| Southern | 12 |
UP
| Union Pacific Railroad Company | 1 |
VULX
| Vulcan Materials | 3 |