Forging Companies
| Siegal Steel Co (Chicago, IL)
Primarily Serving: Cicero, IL - Oak Park, IL - Oak Lawn, IL - Skokie, IL |
| Sifco Industries (Roselle, IL)
Primarily Serving: Schaumburg, IL - Hoffman Estates, IL - Wheaton, IL - Arlington Heights, IL |
| Silgan Containers Corp (Shakopee, MN)
Primarily Serving: Eden Prairie, MN - Burnsville, MN - Minnetonka, MN - Lakeville, MN |
| Silver Star Supply Co (Amarillo, TX)
Primarily Serving: Lubbock, TX - Lawton, OK - Wichita Falls, TX - Midland, TX |
| Simcote Inc (Saint Paul, MN)
Primarily Serving: Minneapolis, MN - Burnsville, MN - Eden Prairie, MN - Minnetonka, MN |
| Simpson Reinforcing Inc (Pittsburgh, PA)
Primarily Serving: Youngstown, OH - Canton, OH - Akron, OH - Cuyahoga Falls, OH |
| Sims Hugo Neu (Jersey City, NJ)
Primarily Serving: Union City, NJ - New York, NY - Bayonne, NJ - Newark, NJ |
| Singleton Sheet Metal Works (Pueblo, CO)
Primarily Serving: Colorado Springs, CO - Jefferson, CO - Aurora, CO - Denver, CO |
| Sino Am Enterprises Inc (Ontario, CA)
Primarily Serving: Upland, CA - Chino, CA - Rancho Cucamonga, CA - Pomona, CA |
| Sintered Advantage Products (Saint Marys, PA)
Primarily Serving: Erie, PA - Buffalo, NY - Pittsburgh, PA - East Amherst, NY |
| Sinterfire Inc (Kersey, PA)
Primarily Serving: Erie, PA - Pittsburgh, PA - Youngstown, OH - Buffalo, NY |
| Sintering Technologies Inc (Greensburg, IN)
Primarily Serving: Indianapolis, IN - Hamilton, OH - Fishers, IN - Cincinnati, OH |
| Siri Wire Co (Danielson, CT)
Primarily Serving: Cranston, RI - Providence, RI - Warwick, RI - Pawtucket, RI |
| Sisco Wire Rope & Rigging (Modesto, CA)
Primarily Serving: Turlock, CA - Manteca, CA - Tracy, CA - Stockton, CA |
| Skf Steel (Highland, IN)
Primarily Serving: Hammond, IN - Gary, IN - Tinley Park, IL - Oak Lawn, IL |
| Skorr Steel Co Inc (Brooklyn, NY)
Primarily Serving: New York, NY - Jersey City, NJ - Bayonne, NJ - Union City, NJ |
| Skyline Stainless (Billings, MT)
Primarily Serving: Great Falls, MT - Casper, WY - Idaho Falls, ID |
| Skyline Steel Mid West Div (Tinley Park, IL)
Primarily Serving: Orland Park, IL - Oak Lawn, IL - Joliet, IL - Hammond, IN |
| Slippery Rock Salvage (Slippery Rock, PA)
Primarily Serving: Youngstown, OH - Pittsburgh, PA - Canton, OH - Cuyahoga Falls, OH |
| Slm (Carrollton, GA)
Primarily Serving: Smyrna, GA - Marietta, GA - Atlanta, GA - Roswell, GA |
| Smk Construction Co Inc (Pasco, WA)
Primarily Serving: Kennewick, WA - Yakima, WA - Spokane, WA - Enumclaw, WA |
| Smorgon Steel Llc (Kansas City, MO)
Primarily Serving: Independence, MO - Overland Park, KS - Shawnee, KS - Blue Springs, MO |
| Sms Demag Inc (Pittsburgh, PA)
Primarily Serving: Youngstown, OH - Canton, OH - Akron, OH - Cuyahoga Falls, OH |
| Solomon Metals Corp (Lynn, MA)
Primarily Serving: Peabody, MA - Revere, MA - Malden, MA - Medford, MA |
| Somers Steel (Westland, MI)
Primarily Serving: Dearborn Heights, MI - Livonia, MI - Canton, MI - Taylor, MI |
