| Sheffield Steel (Kansas City, MO)
|
| Shelby Steel Processing Co (River Rouge, MI)
|
| Sides Metal Recycling (Cape Girardeau, MO)
|
| Silgan Containers Corp (Shakopee, MN)
|
| Simcote Inc (Saint Paul, MN)
|
| Sintering Technologies Inc (Greensburg, IN)
|
| Skf Steel (Highland, IN)
|
| Smorgon Steel Llc (Kansas City, MO)
|
| Sos Metals (Louisville, KY)
|
| Southern Indiana Steel Inc (Loogootee, IN)
|
| Steel Cities Steels Inc (Chesterton, IN)
|
| Steel Slitting Co Inc (Elwood, IN)
|
| Steel Suppliers Inc (Elkhart, IN)
|
| Steel Technologies (Eminence, KY)
|
| Steel Technologies (Portage, IN)
|
| Steel Technologies Range (Ghent, KY)
|
| Steel Warehouse (South Bend, IN)
|
| Steelcraft Fabricator (Demotte, IN)
|
| Stolz Structural Inc (Elberfeld, IN)
|
| Strip Steel (Fraser, MI)
|
| Strong Steel Products (Detroit, MI)
|
| Sugar Creek Steel Fabrication (Columbia, MO)
|
| Summit Metal Processing (Warren, MI)
|
| Swi (Columbus, IN)
|
| Tarpon Industries Inc (Marysville, MI)
|
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