Who We Are
The Tiller Foundation
Founded in 2015 by Dr. William A. Tiller, Professor Emeritus at Stanford University, The Tiller Foundation carries forward a lifetime of his pioneering exploration into the nature of consciousness and its influence on the physical world.
Rooted in both rigorous science and expanded awareness, the Foundation honors Dr. Tiller’s vision: that human intention is a meaningful force—one that can be cultivated to support greater coherence, healing, and possibility for humanity.
WILLIAM A TILLER, PH.D.
(1929-2022)
Founder

Dr. William A. Tiller, founder of The Tiller Foundation, was a pioneering scientist, visionary thinker, and beloved Professor whose groundbreaking work in psychoenergetic science expanded humanity’s understanding of consciousness and its interaction with the physical world. A distinguished Professor Emeritus at Stanford University. He devoted decades to exploring the profound relationship between intention, energy, and human potential. Through his courage, brilliance, and deep compassion for humanity, he opened new pathways for healing, transformation, and scientific inquiry. The Tiller Foundation proudly carries forward his legacy of discovery, wisdom, and service to the evolution of human consciousness.

JEAN TILLER
(1931 - 2021)
Wife and Collaborator
Jean Tiller, late wife of William Tiller, met when they were 12 (Jean) and 13 (Bill). They didn't see each other until she was 17, he was 18, dated and then married at 21 and 22. Since then Jean was his partner in all things, in life, parenting and spiritual search. With her extraordinary gifts of intuition, emotional intelligence, and meditation skill, she was a crucial collaborator in Dr Tiller’s Psychoenergetic Science research.
Beloved Jean Tiller passed from our world in April 2021. Jean, we thank you and love you with all our hearts.

Bill Roberts
President
Bill was a colleague of Dr Tiller for over 20 years and is currently President of The Tiller Foundation. In addition to being a freelance producer of training and promotional videos, Bill has produced and directed over 200 cable television programs. Bill has 23 years IT management experience in a hi-tech manufacturing environment specializing in electronic messaging, business processes, website maintenance and application programming. Bill holds an Organizational Management Certificate from the ASU Nonprofit Management Institute and certification from the Monroe Institute of Applied Sciences as an Excursion Workshop Facilitator (for stress reduction and enhanced conscious awareness). He is an ordained minister at The Logos Center in Scottsdale, Arizona.
Bill lives in Arizona with his wife Deb