ABOUT US QS Behavioral Is One Of The Nation’s Leading ABA Therapy Providers QS Behavioral Services is an agency that connects you to experienced BCBAs and highly trained Registered Behavior Technicians (RBTs), Sibshop Facilitators , and State Certified Educators to provide the best behavioral health treatments for your child. At QS Behavioral Services, we truly understand the value of ABA therapy for challenging behaviors. Our experienced and certified educators understand firsthand how poor social skills and behavior challenges impede academic success.