| Hearon Steel of Okc (Oklahoma City, OK)
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| Heat Management (Beaver Falls, PA)
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| Heidtman Steel (Granite City, IL)
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| Helping Handrails (Pittsburgh, PA)
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| Hercules Drawn Steel (Livonia, MI)
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| Hercules Safety Equipment (Houston, TX)
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| Herold Precision Metals (Saint Paul, MN)
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| Hidden Valley Steel & Scrap (Escondido, CA)
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| Hill & Hill Enterprises Inc (Winston, GA)
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| Hille & Mueller Inc (Warren, OH)
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| Hi-Mill Manufacturing Co (Highland, MI)
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| Hi-Star Castings Co (Cleveland, OH)
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| Hodes Industries Inc (Bellefonte, PA)
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| Hodgdon Brothers (Ascutney, VT)
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| Hoeganaes Corp (Riverton, NJ)
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| Hokin-Katz Metals Svc (Los Angeles, CA)
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| Holbrook Manufacturing Inc (Wheeling, IL)
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| Hooley Inc (New Orleans, LA)
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| Hoover Precision Products Inc (Sault Sainte Mar, MI)
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| Horizon Technologies (Lynchburg, VA)
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| Houston Flame Hardening Co (Houston, TX)
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| Hudson River Recycling (Albany, NY)
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| Hunt Imaging Llc (Berea, OH)
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| Huron Valley Steel (Belleville, MI)
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| Hydra Hose & Supply Co (Yorktown, VA)
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