| MakSteel Hermitage (Wheatland, PA)
|
| Man Ferrostaal Inc (Villa Park, IL)
|
| Manitoba Corp (Saint Louis, MO)
|
| Manufacturing & Technical Svc (Sadsburyville, PA)
|
| Marathon Metals Llc (Detroit, MI)
|
| Marcegaglia Usa Inc (Homestead, PA)
|
| Marcell Paper & Metal Inc (Chicago, IL)
|
| Marmetal Industries Inc (Horsham, PA)
|
| Marquette Metalwerke Ss Spec (Portland, OR)
|
| Mars Steel Corp (Franklin Park, IL)
|
| Marsann Co Llc (Modesto, CA)
|
| Marshfield Scrap Co (Marshfield, WI)
|
| Martek Fabricating (Newmanstown, PA)
|
| Marth's Disposal Svc (Northampton, PA)
|
| Martin Enterprises (Fort Lauderdale, FL)
|
| Martin Rhoad (Reading, PA)
|
| Marwais Steel Co (Alamo, CA)
|
| Maryland Metals Processing Inc (Sparrows Point, MD)
|
| Maryland Recycle (Forest Hill, MD)
|
| Mason Corp (Schererville, IN)
|
| Massey Metals (Ninnekah, OK)
|
| Material Works Ltd (Red Bud, IL)
|
| Materials Recovery Co (Troy, NY)
|
| Mattson, D B Co (Belleville, MI)
|
| Mc Carty & Sons Inc (Westbrook, CT)
|
