| SEMA | Macara J. M. Velasco Ibarra, Ecuador 
| Others |
| SEMA | Segmented Electro Magnetic Array
| Others |
| SEMA | Send Extra Money Away
| Others |
| SEMA | Session Based Mobile Adhoc Network Architecture
| Others |
| SEMA | Shell Eco Marathon Americas
| Others |
| SEMA | Shropshire Ethnic Minority Alliance
| Others |
| SEMA | Smart Embedded Management Agent
| Others |
| SEMA | Software Engineering Measurement and Analysis
| Others |
| SEMA | South East Minnesota Agriculture
| Others |
| SEMA | SouthEast/Middle Atlantic
| Others |
| SEMA | Southeastern Electricity Metering Association
| Others |
| SEMA | Special Electronic Mission Aircraft
| Others |
| SEMA | Special Equipment Mission Aircraft
| Others |
| SEMA | Specialist Equipment Market Association
| Others |
| SEMA | Specialty Equipment Management Association
| Others |
| SEMA | Specialty Equipment Manufacturer Association
| Others |
| SEMA | Specialty Equipment Manufacturer's Association
| Others |
| SEMA | Specialty Equipment Manufacturers Association
| Others |
| SEMA | Specialty Equipment Market Association
| Others |
| SEMA | Specialty Equipment Marketing Association
| Others |
| SEMA | Speed Equipment Manufacturers Association
| Others |
| SEMA | Speed Equipment Manufacturing Association
| Others |
| SEMA | State Emergency Management Agency
| Others |
| SEMA | Storage Equipment Manufacturers Association
| Others |
| SEMA | Support Equipment Move Authorization
| Others |
| SEMA | Swedish Emergency Management Agency
| Others |
| SEMA | Syrian Expatriate Medical Association
| Others |
| SEMA | Systematic Ecological Model for Adapting
| Others |
| SEMA | Systemic Enigmatic Machinery of Agency
| Others |