Isshin-Ryū (一心流, Isshin-ryū) is a style of Okinawan karate founded by Tatsuo Shimabuku (島袋 龍夫) in 1956. Isshin-Ryū karate is largely a synthesis of Shorin-ryū karate, Gojū-ryū karate, and kobudō (weapons).

Isshinryu can be summarized in its kata, and the specific techniques used to punch (vertical fist) and kick (snapping kicks) presented as upper and lower 'charts', most of which are thrown from natural stances and body posture. These kata include original developments of Master Shimabuku, and inherited kata from the parent styles.

Onsite Family Martial Arts Center's Isshinryu also has instruction in kobodo (weapons), specializing in Bo (long stick) and Sai (short pronged sword). In addition, we offer instruction in tonfa, kama, and nunchaku.

A key aspect of our school's philosophy is respect.

Onsite Family Marts Arts is a charter school of the The International Isshin-Ryu Karate Federation (IIKF), which was founded in 2010 by Sensei Curt Sawyer and Sensei Matt Dorsey, both 9th degree black belts and original students of Grandmaster Joseph Jennings and Grandmaster Angi Uezu.

With the desire to help unify, grow and educate Isshin Ryu practitioners around the world, Sensei Sawyer and Sensei Dorsey have committed themselves to make the IIKF the foremost karate organization in the world.