STMSSite Traffic Management Supervisor
STMSSevern Trent Metering Services (UK)
STMSSick to My Stomach
STMSSociety of Tennis Medicine and Science
STMSSap Transport Management System
STMSStudent Training Management System (Foreign Service Institute)
STMSSales Tax Management Service
STMSSaint Timothy Middle School (West Hartford, CT)
STMSSusquehanna Township Middle School (Harrisburg, PA)
STMSSun Trust Merchant Services (payment processing)
STMSStock Trading Monitoring System
STMSScottish Theatre and Music School
STMSSt. Thomas More School (various locations)
STMSSilver Trail Middle School (Pembroke Pines, FL)
STMSSaluda Trail Middle School (Rock Hill, SC)