| Abbreviation | Definition |
|---|---|
| MMC | Mitsubishi Motors Corporation |
| MMC | Moeller Manufacturing Company |
| MMC | Music Message Center |
| MMCC | Marcus Millichap Capital Corporation |
| MMCI | Monocacy Montessori Communities Inc |
| MMCI | Mork Mausoleum Construction Inc |
| MMD | Materials Management Division |
| MMDI | MacLaren McCann Direct and Interactive |
| MMDI | Millennium Mold Design Inc |
| MMDI | Minnesota Medical Development Inc |
| MMDJS | Magic Moments Disc Jockey Service |
| MME | Me Myself and Eye Entertainment, AG |
| MME | Meyer Muller Eckert |
| MME | Mitsui Marketing Europe |
| MME | Montana Material Exchange |
| MME | MultiMedia Editorial S. A. de C. V. |
| MMES | Martin Marietta Energy Systems |
| MMFC | Majestic Metal Fabricating Company |
| MMFP | Mutual Movies Film Production |
| MMG | Macy's Merchandising Group |