| Magcomp (Orange, CA)
|
| Mag-Con Engineering Inc (Circle Pines, MN)
|
| Magna Force Inc (Port Angeles, WA)
|
| Magnetic Coils Inc (Nazareth, PA)
|
| Magnetic Design Labs (Santa Ana, CA)
|
| Magnetic Devices Inc (Crystal Lake, IL)
|
| Magnetic Technology (McKinney, TX)
|
| Magnetika Inc (Phillipsburg, NJ)
|
| Magnum Transformer Corp (Perth Amboy, NJ)
|
| Majestic Terminal Svc Inc (Norfolk, VA)
|
| Manairco Inc (Mansfield, OH)
|
| Marathon Electric Inc (Matawan, NJ)
|
| Marc Mills (Huntley, IL)
|
| Marcie Electric Inc (South Lyon, MI)
|
| Mark Iv Aluminum (Rockledge, FL)
|
| Martin Sprocket & Gear Inc (Danielsville, PA)
|
| Marvel Electric Co (Chicago, IL)
|
| Mci Transformer Corp (West Babylon, NY)
|
| Mdc Aircraft Svc (Southwick, MA)
|
| Mendive Manufacturing Inc (Reno, NV)
|
| Meramec Electric Products (Cuba, MO)
|
| Mercury Magnetics Engineering (Chatsworth, CA)
|
| Mge Ups Systems (Costa Mesa, CA)
|
| Mgm Transformer Co (Los Angeles, CA)
|
| Midway Industrial Supply Co (Appleton, WI)
|
