| Molecular Manufacturing Enterprises Inc. | Eagan, Minnesota, United States |
| Molecular Nanosystems Inc. | Palo Alto, California, United States |
| Molecutech | Carrollton, Texas, United States |
| Moliseinnovazione SCPA | Campobasso CB, Italy |
| Montana Microfabrication Facility | Bozeman, Montana, United States |
| Moog Components Group Inc. | Blacksburg, Virginia, United States |
| Moog Inc. | East Aurora, New York, United States |
| Moore Nanotechnology Systems LLC | Keene, New Hampshire, United States |
| Morgan Madison & Co. | Oak Brook, Illinois, United States |
| Morgan Materials Technology Ltd. | Worcestershire, United Kingdom |