Why Choose Autism Home Support Services (AHSS)? High quality therapy is our number one priority and it shows! 93% of our clients say they have seen improvements in their child through the AHSS therapy process. We provide center and in-home ABA therapy in the Chicago, Ann Arbor and Denver metropolitan areas. We believe that by using qualified professionals trained in the evidence-based practices of Applied Behavior Analysis (ABA) therapy, we can create a positive difference in a child’s overall development and long-term success. From day one, we will work tirelessly with you to assemble the Care Team™ and tools that best match the needs of your individual child and family. With patience, time, the right approach, and a lot of hard work, we believe that every child can reach their full potential!