In 1997 a group gathered together to develop the ZPO Precepts. This group was called the ZPO USA Founding Teachers and consisted of Grover Genro Gauntt, Joan Jiko Halifax, Eve Myonen Marko, Wendy Egyoku Nakao, and Pat Enkyo O’Hara.
In 2002 a group gathered in Europe to study together and to develop ZPO in Europe. This group was called the Founding ZPO Teachers of Europe and consisted of Malgosia Braunek (Poland), Frank De Waele (Belgium), Michel DuBois (France), Amy Holloway (France), Andrzej Krajewski (Poland), Roberto Mander (Italy), Catherine Pagès (France), Paul Shoju Schwerdt (Germany), Barbara Salaam Wegmüller (Switzerland) and Roland Yakushi Wegmüller (Switzerland). Heinz-Jürgen Metzger (Germany) joined this group shortly after.
The ZPO Co-Founder, Bernie Glassman along with the Europe ZPO Founding Teachers spent about one year studying together and founding the Europe ZPO.