The Self-Defense Institute
(Located Next to US Post Office)
MGM Plaza, 1721 Main Street,
Tewksbury, Massachusetts
email (or text): tsdi.contact@gmail.com
26th Annual Registration
Spring/Summer 2025 - open to all ages!
Unleash your inner strength and cultivate self-confidence at The Self Defense Institute in Tewksbury, Massachusetts.
Since 1999, we've empowered individuals of all ages, from 3 1/2 to 18 years and adults, with the skills and resources to excel in the Martial Arts and beyond.
The Self-Defense Institute - Tewksbury, MA
Experience empowerment and confidence with the exceptional training and resources provided by The Self-Defense Institute! Our Tewksbury Karate Programs offer a fun and engaging activity for the entire family, bringing you all closer together and creating unforgettable memories.
To register for Tewksbury Karate Programs for Children or Tewksbury Karate Programs for Adults, simply email or text to us at tsdi.contact@gmail.com.
Spring and Summer 2025 Tewksbury Karate Registration is open for children, teens, and adults.
Our training programs are tailored to each age.
Monthly tuition. No contracts/agreements.
Ask about family rates! Schedule your training today!
Welcome to Tewksbury Martial Arts Training for children, teens and adults!
The training is designed to help you increase focus, patience, self-control, confidence, balance, coordination, flexibility, and agility.
We are passionate about empowering individuals with the skills and resources they need.
Testimonials
At The Self-Defense Institute in Tewksbury, MA, learn how to protect yourself, and also gain confidence, discipline, and mental clarity. Our experienced instructors are dedicated to helping you achieve your personal goals, whether it's improving your fitness level, reducing stress, or simply feeling more empowered. Join us today and discover the many benefits of Tewksbury Karate Training at The Self-Defense Institute.
TSDI - News
We are excited to share the latest news.
Our team has been working hard to bring you innovative programs and services that meet your needs. Stay tuned for more updates from The Self-Defense Institute Team.
Member
World Martial Arts Federation
Recipient
Bruce Lee Foundation Award presented by Shannon Lee
Member
Wilmington/Tewksbury Chamber of Commerce
Recipient
Chuck Norris Foundation Award presented by Chuck Norris
25+ Years
Community Contributor
Member
Great Lowell Chamber of Commerce
Recorded Part of World Record:
World's Largest Online Interactive Martial Arts Class
Executive Directors
TSDI Enrichment Programs Inc.,
501(c)3 Non-Profit Public Charity
At The Self-Defense Institute in Tewksbury, Massachusetts, we truly understand that tomorrow's leaders start as today's students. A Black Belt is more than just a symbol of achievement - it represents the embodiment of personal excellence. It takes dedication, focus, patience, self-control, confidence, responsibility, commitment, and integrity to earn this prestigious rank. Becoming a Black Belt means becoming the best version of yourself.
Published Author
Popular Book Series
