| STEMS | Science Technology Engineering and Mathematics in STEMS 
| Others |
| STEMS | Software Test and Evaluation Message System
| Others |
| STEMS | Southern Tier Emergency Medical System
| Others |
| STEMS | Street Tree Electronic Management System
| Others |
| STEMS | Support Therapy Education Music and Specialist
| Others |
| STEMS | Swearer Tutoring Enrichment in Math and Science
| Others |