Railroad Transportation Service Companies
| Southeastern Penna Trnsprtn (Wayne, PA)
Primarily Serving: Philadelphia, PA - Camden, NJ - Wilmington, DE - Levittown, PA |
| Southern Pacific Co (Luling, TX)
Primarily Serving: San Marcos, TX - New Braunfels, TX - Austin, TX - San Antonio, TX |
| Southern Pacific Road Foreman (Alpine, TX)
Primarily Serving: Odessa, TX - Midland, TX - El Paso, TX - San Angelo, TX |
| Southern Pacific Trans Co (Portland, TX)
Primarily Serving: Corpus Christi, TX - Victoria, TX - Harlingen, TX - Edinburg, TX |
| Southern Rail Svc (Marion, AR)
Primarily Serving: Memphis, TN - Jonesboro, AR - Jackson, TN - North Little Rock, AR |
| Southern Railway System (Albany, GA)
Primarily Serving: Cobb, GA - Valdosta, GA - Tallahassee, FL - Dothan, AL |
| Southern Railway System (Americus, GA)
Primarily Serving: Cobb, GA - Albany, GA - Columbus, GA - Warner Robins, GA |
| Spcsl Corp (Dwight, IL)
Primarily Serving: Joliet, IL - Bolingbrook, IL - Tinley Park, IL - Orland Park, IL |
| St Louis Southwestern (Scott City, MO)
Primarily Serving: Saint Louis, MO - Jonesboro, AR - Jackson, TN - Evansville, IN |
| St Louis Southwestern Railway (South Hutchinson, KS)
Primarily Serving: Wichita, KS - Manhattan, KS - Topeka, KS - Cleveland, OK |
| Starlight Express Llc (Charlottesville, VA)
Primarily Serving: Lynchburg, VA - Richmond, VA - Centreville, VA - Burke, VA |
| Stillwater Central Railroad (Cyril, OK)
Primarily Serving: Lawton, OK - Norman, OK - Oklahoma City, OK - Edmond, OK |
| Stockton Terminal & Eastern (Stockton, CA)
Primarily Serving: Lodi, CA - Manteca, CA - Tracy, CA - Antioch, CA |
| Stockton Terminal & Eastern Rr (Stockton, CA)
Primarily Serving: Lodi, CA - Manteca, CA - Tracy, CA - Antioch, CA |
| Straits Corp (Brighton, MI)
Primarily Serving: Novi, MI - Ann Arbor, MI - Farmington, MI - West Bloomfield, MI |
| Straits Service Co (Bay City, MI)
Primarily Serving: Saginaw, MI - Flint, MI - Lansing, MI - Waterford, MI |
| Sweetner Transloading (Johnstown, PA)
Primarily Serving: Pittsburgh, PA - Charles Town, WV - Frederick, MD - Youngstown, OH |
| T P & W (Fairbury, IL)
Primarily Serving: Normal, IL - Bloomington, IL - Champaign, IL - Peoria, IL |
| Tarantula Steam Train (Fort Worth, TX)
Primarily Serving: North Richland Hills, TX - Arlington, TX - Euless, TX - Grand Prairie, TX |
| Terminal Railroad Assn (Saint Louis, MO)
Primarily Serving: Florissant, MO - Saint Charles, MO - Saint Peters, MO - O Fallon, MO |
| Terminal Railroad Assoc (Venice, IL)
Primarily Serving: Saint Louis, MO - Florissant, MO - Saint Charles, MO - Saint Peters, MO |
| Texas Central Railroad (Gorman, TX)
Primarily Serving: Abilene, TX - Fort Worth, TX - North Richland Hills, TX - Killeen, TX |
| Texas Mexical Railway Co (Yoakum, TX)
Primarily Serving: Victoria, TX - San Marcos, TX - New Braunfels, TX - Austin, TX |
| Thunder Mountain Line (Horseshoe Bend, ID)
Primarily Serving: Boise, ID - Meridian, ID - Nampa, ID - Paradise Valley, NV |
| Timber Rock Railroad (Conroe, TX)
Primarily Serving: Montgomery, TX - Houston, TX - Pasadena, TX - Baytown, TX |
