Action Behavior Centers - ABA Therapy for Autism Our Elgin ABA Therapy area centers provide autism therapy services for early learners, school-age children, and teens to achieve success on the spectrum. Applied Behavior Analysis (ABA) therapy is the leading treatment method to improve the signs and symptoms associated with Autism Spectrum Disorder (ASD). At ABC, our goal is to be the best Applied Behavior Analysis (ABA) Therapy clinic, not necessarily the biggest. We have an extremely selective hiring process to ensure our patients receive the highest quality ABA therapy services from our highly dedicated autism specialists.