Carrying On the Tradition

Arizona JKA is a non-profit, 501(c)3 organization established to carry on the legacy of Master Shojiro Koyama, and are the continuation of Arizona Karate Association. We are JKA-qualified instructors teaching all levels of Shotokan Karate-Do.

Lifetime Exercise

We train in karate as lifetime exercise. We have members as young as 5 and as old as 80. Martial Arts training helps in all aspects of life, increasing overall health and well-being, stress reduction, and increased focus.

Educational Karate-Do

Karate-do is physical, mental, and spiritual. In addition to practicing kihon (basics), kata (forms), and kumite (sparring), we learn about the philosophy and Japanese culture.


Why a non-profit?

A core group of Master Koyama’s students chose to make the successor organization to Arizona Karate Association a nonprofit corporation. The nonprofit status aligns with our dedication to karate-do as a martial art.  In addition, we share in the responsibilities of teaching and maintaining the dojo; we are all volunteers, and none of us is paid for teaching.  Membership dues and donations go to the everyday maintenance of the dojo, and towards future renovations to the space, and additional educational opportunities, such as inviting special guest instructors and ensuring our instructors keep developing their karate-do.  If you are interested in making a tax-free donation to the dojo, please contact us at