Metal Service Centers
| Ocs of Virginia Inc (Powhatan, VA)
Primarily Serving: Richmond, VA - Lynchburg, VA - Newport News, VA - Suffolk, VA |
| Ogden Aluminum (Cape Coral, FL)
Primarily Serving: North Fort Myers, FL - Fort Myers, FL - Port Charlotte, FL - North Port, FL |
| Okeechobee Pipe & Fittings (Okeechobee, FL)
Primarily Serving: Port Saint Lucie, FL - Jupiter, FL - Palm Bay, FL - Wellington, FL |
| Olin Brass Fineweld Tube (Cuba, MO)
Primarily Serving: O Fallon, MO - Saint Peters, MO - Saint Charles, MO - Saint Louis, MO |
| Oliver Fence Co (New Bedford, MA)
Primarily Serving: Fall River, MA - Taunton, MA - Warwick, RI - Pawtucket, RI |
| Olympic Steel Co (Minneapolis, MN)
Primarily Serving: Minnetonka, MN - Saint Paul, MN - Eden Prairie, MN - Burnsville, MN |
| Olympic Steel Co (Philadelphia, PA)
Primarily Serving: Camden, NJ - Levittown, PA - Wilmington, DE - Trenton, NJ |
| Omega Steel Inc (Wayland, MI)
Primarily Serving: Wyoming, MI - Grand Rapids, MI - Kalamazoo, MI - Battle Creek, MI |
| Omni Cable (O Fallon, MO)
Primarily Serving: Saint Peters, MO - Saint Charles, MO - Florissant, MO - Saint Louis, MO |
| One Stop Aluminum Products (Ormond Beach, FL)
Primarily Serving: Daytona Beach, FL - Port Orange, FL - Palm Coast, FL - Deltona, FL |
| One Stop Steel Corp (Saint Louis, MO)
Primarily Serving: Florissant, MO - Saint Charles, MO - Saint Peters, MO - O Fallon, MO |
| O'Neal Steel Inc (Evansville, IN)
Primarily Serving: Owensboro, KY - Bowling Green, KY - Bloomington, IN - Louisville, KY |
| O'Neal Steel Inc (Jacksonville, FL)
Primarily Serving: Gainesville, FL - Palm Coast, FL - Ocala, FL - Daytona Beach, FL |
| O'Neal Steel Inc (Mobile, AL)
Primarily Serving: Pensacola, FL - Gulf Breeze, FL - Gulfport, MS - Hattiesburg, MS |
| O'Neal Steel Inc (Dallas, TX)
Primarily Serving: Irving, TX - Mesquite, TX - Richardson, TX - Garland, TX |
| O'Neal Steel Inc (Breaux Bridge, LA)
Primarily Serving: Lafayette, LA - Baton Rouge, LA - Lake Charles, LA - Kenner, LA |
| O'Neill Metal Forming (Walled Lake, MI)
Primarily Serving: Novi, MI - West Bloomfield, MI - Farmington, MI - Waterford, MI |
| Oregon Wire Products Llc (Portland, OR)
Primarily Serving: Beaverton, OR - Clackamas, OR - Vancouver, WA - Gresham, OR |
| Organ Wire Prod Llc (Portland, OR)
Primarily Serving: Beaverton, OR - Clackamas, OR - Vancouver, WA - Gresham, OR |
| Ozark Die Casting (Saint Clair, MO)
Primarily Serving: O Fallon, MO - Saint Peters, MO - Saint Charles, MO - Saint Louis, MO |
| P B Metals (Los Angeles, CA)
Primarily Serving: Huntington Park, CA - Inglewood, CA - Glendale, CA - Monterey Park, CA |
| P K Pipe & Tubing (Baton Rouge, LA)
Primarily Serving: Lafayette, LA - Kenner, LA - Metairie, LA - New Orleans, LA |
| P Naveri (Glendale, CA)
Primarily Serving: Burbank, CA - Pasadena, CA - Los Angeles, CA - Alhambra, CA |
| Pacesetter Steel Svc (Morrisville, PA)
Primarily Serving: Levittown, PA - Trenton, NJ - Philadelphia, PA - Camden, NJ |
| Pacific Industrial Products (Honolulu, HI) |
