| Scripps Center for Marine Archaeology | Academic & Science |
| Society for the Current Middle Ages | Academic & Science |
| Sierra College Management Association | Business |
| Supply Chain Management and Analytics | Business |
| Security Configuration Management Automation | Business |
| Supply Chain Management Association | Business |
| Sacramento County Management Association | Community |
| South Central Membrane Association | Community |
| Southern Cypress Manufacturers Association | Community |
| Spartanburg County Museum of Art | Community |
| School of Communication Media and the Arts | Community |
| Southern California Mountaineers Association | Community |
| Southern California Mediation Association | Community |
| Smith College Museum of Art | Community |
| Southern California Motorcycling Association | Community |
| Saskatchewan Country Music Awards | Community |
| Southern Community Media Association | Community |
| Southwest Celtic Music Association | Community |
| South Central Motorcoach Association | General |
| Supply Chain Management Analyst | General |
| Sparse Code Multiple Access | General |
| South Carolina Manufacturers Alliance | Governmental |
| Schuylkill County Municipal Authority | Governmental |
| Southern California Military Academy | Governmental |
| South Carolina Medical Association | Medical |
| Student Christian Medical Association | Medical |
| Sussex County Medical Associates | Medical |
| Specialty Certified Medical Assistant | Medical |
| Sonoma County Medical Association | Medical |
| Sport Clube Mineiro Aljustrelense | Sports |
