| Riverdale Steel Processing Inc (Riverdale, IL)
|
| Robert James Sales Inc (Chicago Ridge, IL)
|
| Robinson Steel Co Inc (Granite City, IL)
|
| Rogalla Systems Inc (Barrington, IL)
|
| Rolled Metal Products (Alsip, IL)
|
| Royal Steel Ball Products Inc (Sterling, IL)
|
| Sawing & Shearing Svc (Blue Island, IL)
|
| Scott Plating Inc (Skokie, IL)
|
| Set Steel (Chicago Heights, IL)
|
| Shea's Iron Works Inc (Lake Villa, IL)
|
| Siegal Steel Co (Chicago, IL)
|
| Skyline Steel Mid West Div (Tinley Park, IL)
|
| Specialty Metals (Litchfield, IL)
|
| Ssmp Trading (Joliet, IL)
|
| St Louis Auto Shredding Inc (National Stock Y, IL)
|
| Steel Solutions Inc (Naperville, IL)
|
| Steel Works Llc (Granite City, IL)
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| Steelcon Corp (Orland Park, IL)
|
| Strat-O-Span Buildings Inc (Breese, IL)
|
| T & H Lemont (La Grange, IL)
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| Tata Inc (Naperville, IL)
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| Thermatool Lemon (La Grange, IL)
|
| Thyssen Krupp Ast Usa Inc (Deerfield, IL)
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| Transload Services Llc (Chicago, IL)
|
| Trifab Inc (Antioch, IL)
|
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