Steel Mill Companies
| Manufacturing & Technical Svc (Sadsburyville, PA)
Primarily Serving: Newark, DE - Lancaster, PA - Wilmington, DE - Reading, PA |
| Marathon Metals Llc (Detroit, MI)
Primarily Serving: Dearborn, MI - Warren, MI - Dearborn Heights, MI - Royal Oak, MI |
| Marcegaglia Usa Inc (Homestead, PA)
Primarily Serving: Pittsburgh, PA - Youngstown, OH - Canton, OH - Akron, OH |
| Marcell Paper & Metal Inc (Chicago, IL)
Primarily Serving: Cicero, IL - Oak Park, IL - Oak Lawn, IL - Skokie, IL |
| Marmetal Industries Inc (Horsham, PA)
Primarily Serving: Philadelphia, PA - Levittown, PA - Camden, NJ - Trenton, NJ |
| Marquette Metalwerke Ss Spec (Portland, OR)
Primarily Serving: Beaverton, OR - Clackamas, OR - Vancouver, WA - Gresham, OR |
| Mars Steel Corp (Franklin Park, IL)
Primarily Serving: Oak Park, IL - Des Plaines, IL - Mount Prospect, IL - Cicero, IL |
| Marsann Co Llc (Modesto, CA)
Primarily Serving: Turlock, CA - Manteca, CA - Tracy, CA - Stockton, CA |
| Marshfield Scrap Co (Marshfield, WI)
Primarily Serving: Eau Claire, WI - La Crosse, WI - Appleton, WI - Oshkosh, WI |
| Martek Fabricating (Newmanstown, PA)
Primarily Serving: Reading, PA - Lancaster, PA - Allentown, PA - Newark, DE |
| Marth's Disposal Svc (Northampton, PA)
Primarily Serving: Bethlehem, PA - Allentown, PA - Reading, PA - Scranton, PA |
| Martin Enterprises (Fort Lauderdale, FL)
Primarily Serving: Plantation, FL - Pembroke Pines, FL - Hollywood, FL - Margate, FL |
| Martin Rhoad (Reading, PA)
Primarily Serving: Lancaster, PA - Allentown, PA - Bethlehem, PA - Wilmington, DE |
| Marwais Steel Co (Alamo, CA)
Primarily Serving: Walnut Creek, CA - Concord, CA - Castro Valley, CA - Pittsburg, CA |
| Maryland Metals Processing Inc (Sparrows Point, MD)
Primarily Serving: Dundalk, MD - Baltimore, MD - Towson, MD - Ellicott City, MD |
| Maryland Recycle (Forest Hill, MD)
Primarily Serving: Towson, MD - Baltimore, MD - Dundalk, MD - Lancaster, PA |
| Mason Corp (Schererville, IN)
Primarily Serving: Gary, IN - Hammond, IN - Tinley Park, IL - Oak Lawn, IL |
| Massey Metals (Ninnekah, OK)
Primarily Serving: Lawton, OK - Norman, OK - Oklahoma City, OK - Edmond, OK |
| Material Works Ltd (Red Bud, IL)
Primarily Serving: Saint Louis, MO - Florissant, MO - Saint Charles, MO - Saint Peters, MO |
| Materials Recovery Co (Troy, NY)
Primarily Serving: Albany, NY - Schenectady, NY - Chicopee, MA - Springfield, MA |
| Mattson, D B Co (Belleville, MI)
Primarily Serving: Canton, MI - Westland, MI - Taylor, MI - Dearborn Heights, MI |
| Mc Carty & Sons Inc (Westbrook, CT)
Primarily Serving: Meriden, CT - Hamden, CT - New Haven, CT - West Haven, CT |
| Mc Iver & Smith Fabricators (Houston, TX)
Primarily Serving: Pasadena, TX - Missouri City, TX - Sugar Land, TX - League City, TX |
| Mc Junkin Corp (Indiana, PA)
Primarily Serving: Pittsburgh, PA - Youngstown, OH - Erie, PA - Charles Town, WV |
| Mc Kee's Iron & Metal (Denison, TX)
Primarily Serving: McKinney, TX - Frisco, TX - Allen, TX - Plano, TX |
