| Maximizing Investigators Research Award | Academic & Science |
| Minimally Invasive Robotic Association | Academic & Science |
| Mirada | Business |
| Motor Industry Research Association | Business |
| Music Industry Recording Arts | Community |
| Modernizational Internet Rosary Association | Community |
| Motor Industries Research Association | Community |
| Mental Illness Resources Advocacy | Community |
| Mobile Intercultural Resource Alliance | Computing |
| Minimum Interference Routing Algorithm | Computing |
| Multifunctional Inertial Reference Assembly | Computing |
| Microcomputer Image Reduction And Analysis | Computing |
| Microscopic Image Rapid Analysis | General |
| Macquarie Infrastructure and Real Assets | General |
| Micro Infusion Rolling Abrasion | General |
| Medicare Innovation Responsiveness Act | Governmental |
| Milan Infra-Red Adaptor | Governmental |
| Massachusetts Immigrant and Refugee Advocacy | Governmental |
| Multi-Cluster Initial Rapid Assessment | Governmental |
| Multi-Sectoral Initial Rapid Assessment | Governmental |
| Media Image Resource Alliance | Governmental |
| Medicare Innovation Responsiveness Act of 2003 | Governmental |
| Missouri Immigrant and Refugee Advocates | Governmental |
| Missouri Immigrant Refugee Advocates | Governmental |
| Monterey Institute for Research in Astronomy | Governmental |
| MIRA ROAD | Indian Railway Station |
| Movimiento Independiente de Renovación Absoluta | International |
| Members Internet Resource Account | Internet |
| Marble Info Republican Alliance | Internet |
| Medical Interactive Recovery Assistant | Medical |
| Microbial Risk Assessment | Medical |
