| The Students Emergency Response Team | Academic & Science |
| Security Engineering Research Team | Academic & Science |
| Space Electric Rocket Test | Academic & Science |
| South Eugene Robotics Team | Academic & Science |
| Space Electric Rocket TesJ | Academic & Science |
| Student Emergency Response Team | Academic & Science |
| Special Education Resource Teacher | Business |
| Seabee Engineer Reconnaissance Team | Business |
| Society of Electric and Radio Technicians | Community |
| School Energy Recycling Team | Community |
| Scripture Experience Reason And Tradition | Community |
| Search Engine Roundtable | Computing |
| Sertsheriffs Emergency Response Team | General |
| S Emergency Response Team | General |
| Server Efficiency Rating Tool | General |
| Situation Environment Resources Training | General |
| South East Radiotherapy Trust | General |
| Security Emergency Response and Tactics | General |
| Southwest Emergency Response Team | General |
| Scion Evolution Rally Team | General |
| Suzuki Endurance Racing Team | General |
| Special European Registration for Trailers | General |
| Special European Registration Trucks | General |
| Special Equipment Release Truck | General |
| State Emergency Response Team | Governmental |
| Special Emergency Response Team | Governmental |
| Sheriff's Emergency Response Team | Governmental |
| Self Erecting Rifle Targets | Governmental |
| Special Emergency Reaction Team | Governmental |
| School Energy and Recycling Team | Governmental |
| Special Equestrian Riding Therapy | Medical |
| SERotonin Transporter | Medical |
| serotonin reuptake transporter | Medical |
| Santa Rita, Ecuador | Regional |
| Self Erecting Rifle Target | Sports |