Frans has been a major influence on global research into the system of Reiki since the early 2000s. His practical understanding of the Japanese influences on the system have allowed students around the world to connect deeply with this practise. Frans is a co-founder of the International House of Reiki and Shibumi International Reiki Association with his wife, Bronwen Stiene. He has also co-authored with her the critically acclaimed books The Reiki Sourcebook The Japanese Art of Reiki, A-Z of Reiki Pocketbook, Reiki Techniques Card Deck and Your Reiki Treatment.