This article gives information on The Zen Judo Family Custodians and also the Chief Instructors of the British Zen Judo Family Association, American Zen Judo Family and Zen Judo in Spain.

After the death of Shihan Dominick Mac McCarthy 8th Dan and the founder of The Zen Judo Family, it was decided that there was no one person who could replace him. Therefore it was decided that the ZJF would be run by a group of Custodians, at the time these where mostly 6th Dan rank. Since then there has been an effort made to bring in new blood and to get more input from the ZJF's members.

Since the original setting up of the ZJF's Custodian system there have been a number of changes to the Zen Judo organisation as a whole, with a number of the original Custodians retiring or setting up organisations of there own. In the summer of 2010 it was decided that due to the small number of Custodians still actively participating in the day to day running of Zen Judo Family Clubs, it was time to make the change to a Yudansha (Black Belt) Panel under the leadership of the Head of The Zen Judo Family. This would allow the main Club Sensei and active Black Belts more control over the running of the organisation.