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Tim Geels

Tim Geels was first certified in The Mandt System® in 1988 and was later certified as a Mandt System® instructor in 1995. Tim became a member of the National Training Faculty of The Mandt System® in October of 2001. He attended Northwestern College in Orange City, Iowa, earning a Bachelor of Science degree in 1992 in sociology with a concentration in criminal justice and religion, and a master’s degree in management from American Public University. In 1998 Tim was certified in leadership development through the University of Nebraska’s Center for Leadership Development.

Tim started working with individuals with traumatic brain injury in 1987 while serving at Village Northwest Unlimited in Sheldon, Iowa. In his eight years with VNU, Tim worked as direct care, senior counselor, community living supervisor and co-director of waiver services. His experiences include working with individuals with traumatic brain injury, developmental disabilities, intellectual disabilities, as well as teaching various staff development courses. In 1995, Tim transitioned into a new role with Opportunities Unlimited in Sioux City, Iowa. While at Opportunities Unlimited, Tim served adults with traumatic brain injury in the capacities of residential coordinator, director of residential services and director of staff development.

In addition to his work teaching The Mandt System®, Tim is a co-author of “Supporting People with Complex Behaviors” and “Autism: Supports Through the Spectrum” and is the senior vice president of Corporate Instruction & Implementation at The Mandt System®. Additionally, he is a sought-after conference speaker, trainer, keynote presenter and behavioral consultant. He has helped reduce and eliminate restraints and coercive programming in organizations and schools around the world. He has worked with people in educational facilities, detention centers, jails, psychiatric hospitals, developmental disabilities group homes, hospitals, law enforcement, nightclubs and churches. As a parent of a child with a developmental disability, as well as a professional in the field, Tim brings a unique blend of personal and professional insights into his presentations.


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