Concord Self-Defense Academy offers self-defense training for adults, children and families. The studio also offers private lessons. It specializes in Seirenkai Karate and Seirenkai Jujitsu. The studio is led by Senseis Len and Johanna Glazer, and is a part of the International Seirenkai Organization. The studio is located within the Emerson Hospital Integrative Health and Wellness Center.