Dr. Ronald Leaf is a licensed psychologist who has over thirty years of experience in the field of autism. Dr. Leaf began his career working with Professor Ivar Lovaas, while receiving his undergraduate degree at UCLA. Subsequently, he received his doctorate under the direction of Dr. Lovaas. During his professional training at UCLA, he served as Clinic Supervisor, Research Psychologist, Lecturer, and Interim Director of the Young Autism Project. He was extensively involved in many of the Young Autism Project research investigations, contributed to The Me Book, and is co-author of The Me Book Videotapes, a series of instructional tapes offering training for teaching autistic children. He is co-author of A Work in Progress, a manual on behavioral treatment of autism, It’s Time for School! Building Quality ABA Educational Programs For Students With Autism Spectrum Disorders, and Sense And Nonsense In The Behavioral Treatment of Autism: It Has To Be Said . Dr. Leaf has consulted nationally and internationally to families, school districts, day programs and residential treatment facilities. Dr. Leaf served as the Director of Straight Talk's Developmental Disabilities Services division for 15 years. This program provided residential and day treatment for adults with developmental disabilities. Dr. Leaf is also the Executive Director of Behavior Therapy and Learning Center, a mental health agency providing treatment, consultation and related services to parents, program staff and school personnel in the United States.

John McEachin is a licensed psychologist who has been providing behavioral intervention to children with autism as well as adolescents and adults with a wide range of developmental disabilities for more than 30 years. He received his graduate training under Professor Ivar Lovaas at UCLA on the Young Autism Project. During his 11 years at UCLA, Dr. McEachin served in various roles including Clinic Supervisor, Research and Teaching Assistant, Visiting Professor and Acting Director. His research has included the long-term follow-up study of young autistic children who received intensive behavioral treatment, which was published in 1993. Since receiving his Ph.D. in Clinical Psychology in 1987 his work has included serving as Clinical Director of Developmental Disabilities Services, a division of Straight Talk in Signal Hill, California. Dr. McEachin has lectured throughout the world and consulted to numerous families and agencies, assisting in the development of treatment programs and providing training to parents, group home staff, and classroom personnel. In 1994 he joined with Ron Leaf in forming Autism Partnership, which they co-direct. In 1999 they co-authored a book on Applied Behavior Analysis for persons with autism, titled A Work in Progress. In 2008 they published It's Time for School! Building Quality ABA Educational Programs For Students With Autism Spectrum Disorders and Sense And Nonsense In The Behavioral Treatment of Autism: It Has To Be Said.

Mitchell Taubman worked with Dr. Lovaas as an undergraduate at UCLA in the early 1970s. He treated children with autism, ADHD and other disorders. He then attended the University of Kansas, studying with such founders of Applied Behavior Analysis (ABA) as Dr. Donald Baer, Dr. Todd Risely, Dr. James Sherman, and his doctoral advisor, Dr. Montrose Wolf. After completing his Ph.D., Dr. Taubman returned to UCLA and served as adjunct assistant professor of psychology and as co-principal investigator with Dr. Lovaas on a federal grant directed at autism treatment. One of his special interests in Teaching Interactions which he brought from the Kansas model to autism treatment. After his post-doctoral work, Dr. Taubman obtained his license as a clinical psychologist and served as clinical director of Straight Talk, a program providing residential and day treatment services to adults with autism and other developmental disabilities. He currently serves as Associate Director of Autism Partnership, where he provides treatment oversight, training and consultation around the world. Dr. Taubman is the co-author of It’s Time for School! Building Quality ABA Educational Programs For Students With Autism Spectrum Disorders and Sense And Nonsense In The Behavioral Treatment of Autism: It Has To Be Said.

Toby J. Mountjoy is the Associate Director of Autism Partnership, a global agency providing a variety of ABA services throughout its 10 international offices. Mr Mountjoy is responsible for overseeing more than 100 staff in Hong Kong, Singapore and Tokyo. Mr Mountjoy has been working with individuals with autism for over 12 years in a multitude of ways. He has provided direct therapy, parent training, supervised home and clinic based ABA programs in the offices that he oversees. He has opened and overseen 5 kindergarden programs in both Singapore and Hong Kong. In January 2007, he set up the first fully registered primary school for children with autism in Hong Kong, which has a capacity to serve up to 64 children.

In addition Mr Mountjoy has regularly consulted and given workshops to agencies and families in other countries including the Philippines, Columbia, Indonesia, Malaysia, USA, China and Vietnam. His extensive experience and realm of knowledge has contributed tremendously to the hundreds of families he currently consults to.