Seido Juku Karate teaches a traditional Japanese style of Karate-Do. The school was founded by Kaicho Tadashi Nakamura in New York City in 1976, and has branches all over the United States and abroad. Seido Karate emphasizes personal development and meditation in a graded series of promotions of increasing skill and complexity.

The Seattle Branch of the World Seido Karate Organization was founded in 1983 under the direction of Jun Shihan Tom Tanaka. Jun Shihan Tanaka brings over 30 years of experience to his instruction, as well as having raised many committed Black Belts within the Seido system. His unique and personable teaching style has made him beloved of his students and has contributed to an atmosphere of respect and dedication in the Seattle Seido dojo.