| Abbreviation | Definition |
|---|---|
| MEIRC | Middle East Industrial Relations Counselors |
| MEMC | Monsanto Electronic Materials Company |
| MEMOREX | MEMORy EXcellence |
| MEOI | Martin Equipment of IL Inc |
| MEP | Mechanical Electrical Plumbing |
| MEPC | Middle East Propulsion Company |
| MEPCO | Multan Electric Power Company Or |
| MEPPI | Mitsubishi Electric Power Products Inc |
| MEPVC | Montreux Equity Partners |
| MERALCO | Manila Electric Company |
| MES | Manufacturing Enterprise Solutions |
| MES | Monroe Enterprises Shopping |
| MESA | Marriott Employee Staff Association |
| MESBIC | Minority Enterprise Small Business Investment Corporation |
| MESC | Middle East Specialized Cables |
| MESI | Manhattan Emergency Shelter Inc |
| MESI | Miller Engineering Services Inc |
| MESL | Marine Ecological Surveys Ltd |
| MET | Meridian Energy Therapies |
| METC | Michigan Electric Transmission Company |