| Rank | Abbreviation | Meaning |
|---|
| ***** | MEMC | Methoxy Ethyl Mercury Chloride
| |
| ***** | MEMC | Medical Equipment Maintenance Center
| |
| **** | MEMC | Mitchell Electric Membership Corporation
| |
| **** | MEMC | Middle East Management Centre
| |
| **** | MEMC | Mechanics of Materials and Constructions
| |
| **** | MEMC | Mineral Exploration and Mining Company
| |
| **** | MEMC | Monsanto Electronic Materials Company, Inc.
| |
| **** | MEMC | Metropolitan Emergency Managers Committee
| |
| **** | MEMC | Mission Essential Minor Construction
| |
| *** | MEMC | Munson Earth Moving Corporation
| |
| *** | MEMC | Midwest Electric Manufacturing Corporation
| |
| ** | MEMC | Mount Elizabeth Medical Centre
| |
| ** | MEMC | Mountain Edge Mining Company
| |
| ** | MEMC | Miller Electric Manufacturing Company
| |
| ** | MEMC | Meeting and Event Management Certificate
| |
| ** | MEMC | MEMORY SCIENCES CORP.
| |
| ** | MEMC | Main Event Management Corporation
| |
| * | MEMC | Monroe Exotic Morgan Collection
| |
| * | MEMC | Mediterranean Emergency Medicine Congress
| |
| * | MEMC | Minerales de Espana Miguel Calvo
| |
| * | MEMC | Monsanto Electronic Materials Company
| |
| * | MEMC | Muk En Methodist Church
| |
| * | MEMC | Methoxyethylmercury Chloride
| |