Steel Service Centers
| Motor City Pipe & Supply Co (Detroit, MI)
Primarily Serving: Dearborn, MI - Warren, MI - Dearborn Heights, MI - Royal Oak, MI |
| Mountain States Supply-Nrthrn (Layton, UT)
Primarily Serving: Ogden, UT - Salt Lake City, UT - West Jordan, UT - Sandy, UT |
| Ms Iron Works (Sun Valley, CA)
Primarily Serving: Burbank, CA - Glendale, CA - Newhall, CA - Los Angeles, CA |
| Mt Pleasant Supply (Mount Pleasant, MI)
Primarily Serving: Saginaw, MI - Lansing, MI - Grand Rapids, MI - Wyoming, MI |
| Mueller Industries Inc (Whiting, IN)
Primarily Serving: Hammond, IN - Gary, IN - Oak Lawn, IL - Chicago, IL |
| Mueller Sales Corp (Cedar Rapids, IA)
Primarily Serving: Iowa City, IA - Waterloo, IA - Dubuque, IA - Davenport, IA |
| Murray International Metals (Houston, TX)
Primarily Serving: Pasadena, TX - Missouri City, TX - Sugar Land, TX - League City, TX |
| Namasco Corp (Charlotte, NC)
Primarily Serving: Concord, NC - Gastonia, NC - Rock Hill, SC - Winston Salem, NC |
| Namasco Corp (Bessemer, AL)
Primarily Serving: Birmingham, AL - Tuscaloosa, AL - Montgomery, AL - Decatur, AL |
| Namasco Corp (Houston, TX)
Primarily Serving: Pasadena, TX - Missouri City, TX - Sugar Land, TX - League City, TX |
| Namasco Corp (Dubuque, IA)
Primarily Serving: Cedar Rapids, IA - Davenport, IA - Iowa City, IA - Madison, WI |
| Namasco Steel (Huger, SC)
Primarily Serving: Mount Pleasant, SC - North Charleston, SC - Charleston, SC - Columbia, SC |
| Namasco Steel Warehousing Div (Dubuque, IA)
Primarily Serving: Cedar Rapids, IA - Davenport, IA - Iowa City, IA - Madison, WI |
| National Certified Pipe Wldng (Detroit, MI)
Primarily Serving: Dearborn, MI - Warren, MI - Dearborn Heights, MI - Royal Oak, MI |
| National Electronic Alloys (Santa Ana, CA)
Primarily Serving: Tustin, CA - Orange, CA - Fountain Valley, CA - Garden Grove, CA |
| National Installation Supply (Hopedale, MA)
Primarily Serving: Framingham, MA - Worcester, MA - Pawtucket, RI - Providence, RI |
| National Material Co (Troy, MI)
Primarily Serving: Sterling Heights, MI - Royal Oak, MI - Rochester, MI - Pontiac, MI |
| National Material Co (Mansfield, OH)
Primarily Serving: Elyria, OH - Lorain, OH - Akron, OH - Columbus, OH |
| National Metal Finishings Corp (Bound Brook, NJ)
Primarily Serving: New Brunswick, NJ - Edison, NJ - Union, NJ - Elizabeth, NJ |
| National Ornamental Supply (San Bernardino, CA)
Primarily Serving: Rialto, CA - Colton, CA - Highland, CA - Fontana, CA |
| National Specialty Alloys Inc (Houston, TX)
Primarily Serving: Pasadena, TX - Missouri City, TX - Sugar Land, TX - League City, TX |
| National Water Works (Las Cruces, NM)
Primarily Serving: El Paso, TX - Albuquerque, NM - Rio Rancho, NM - Santa Fe, NM |
| National Waterworks (Lebanon, IL)
Primarily Serving: Saint Louis, MO - Florissant, MO - Saint Charles, MO - Saint Peters, MO |
| National Waterworks (Morrisville, NC)
Primarily Serving: Cary, NC - Durham, NC - Raleigh, NC - Chapel Hill, NC |
| National Waterworks (Fort Mohave, AZ)
Primarily Serving: Lake Havasu City, AZ - Henderson, NV - Las Vegas, NV - North Las Vegas, NV |
