| Morgenthaler Ventures | Menlo Park, California, United States |
| Morris, Manning & Martin LLP | Atlanta, Georgia, United States |
| Morrison & Foerster LLP | New York, New York, United States |
| MOStron Elektronik GmbH | Viersen, Germany |
| Motion Sense | Fremont, California, United States |
| Mound Laser & Photonics Center Inc. | Miamisburg, Ohio, United States |
| Movaz Networks | Norcross, Georgia, United States |
| Moxtek, Inc. | Orem, Utah, United States |
| MPB Communications Inc. | Pointe Claire, Quebec, Canada |
| MPM Capital | Boston, Massachusetts, United States |