| Rensselaer Iron & Steel Inc (Rensselaer, NY)
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| Republic Engineered Products (Gary, IN)
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| Rexco Aluminum (Ontario, CA)
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| Richey Enterprises Inc (Houston, TX)
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| Richmond Machine Co (Montpelier, OH)
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| Richmond Steel & Welding Inc (Rockingham, NC)
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| Ridgway Powdered Metals Inc (Ridgway, PA)
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| River Valley Machine Inc (Allegan, MI)
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| Riverdale Steel Processing Inc (Riverdale, IL)
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| Roanoke Bar Div (Roanoke, VA)
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| Robert Frieber Artist In Iron (Middlesex, NJ)
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| Robert James Sales Inc (Chicago Ridge, IL)
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| Robert K Kurtz Co (Feasterville Tre, PA)
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| Robinson Steel Co (East Chicago, IN)
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| Robinson Steel Co Inc (Granite City, IL)
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| Rogalla Systems Inc (Barrington, IL)
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| Roll Coater (Indianapolis, IN)
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| Roll Tech Industries Inc (Pennington, NJ)
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| Rolled Alloys (Cincinnati, OH)
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| Rolled Metal Products (Alsip, IL)
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| Roll-Flex Systems Corp (Calhoun, KY)
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| Rome Strip Steel Inc (Rome, NY)
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| Roseland Iron Works (Calhoun, MO)
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| Roura Iron Works (Holly Springs, MS)
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| Royal Steel Ball Products Inc (Sterling, IL)
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