Hans was born in the Netherlands and moved to Switzerland in 1982 where he started his professional career.
He worked as a manager in healthcare, was an internal leadership trainer in a Swiss bank and started in 1994 as an independent development business consultant.
He has 27 years of consultancy experience in industrial, governmental, healthcare, financial and educational sectors and trained many consultants, entrepreneurs, leaders and coaches in Germany, Switzerland, Brasil, Russia, Israel, Italy and the Netherlands.