Build Confidence,
Be Empowered.

Experience kids martial arts and Krav Maga self-defense classes for kids, teens, and adults in Waltham, MA.

Studios Near You:

Waltham

130 Lexington Street
Waltham, MA, 02452

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Changing Lives Since 2014.

Founded in 2014 by Vinny Araujo with his sister Viviane, Apex Defense Academy is dedicated to transforming lives through martial arts, regardless of age, gender, fitness, or experience. Our school provides a safe, comfortable, and welcoming atmosphere where students truly thrive, without the macho ego. Every Apex instructor completes our structured teaching curriculum and certification before teaching a class, and every beginner starts with a private Starter Session, so you walk into your first group class prepared instead of lost.

Apex instructor talking with a kids class seated on the mat

Kids Karate

Our Kids Karate program gives children ages 6–8 a structured first martial art. Kids build confidence, focus, discipline, and respect, all while learning practical and safe self-defense skills at a pace they can follow.

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Young student kicking a heavy bag

Kids Krav Maga

Kids Krav Maga gives children ages 9–11 practical self-defense skills in a structured, age-appropriate class. Kids build confidence, focus, and self-control, and they learn how to stand up for themselves with respect.

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Student throwing a kick at a bag while an instructor watches

Teens Krav Maga

Teens Krav Maga gives teens ages 12–16 real self-defense skills and a real workout in a class with other teens. Our certified instructors teach in a way that challenges teens without intimidating them, and each class builds confidence, focus, and discipline that carries into school and everyday life.

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Teen throwing a kick into a held shield

Krav Maga Self Defense

We teach Krav Maga, the world's leading self-defense system for adults, and our certified instructors teach in a way that's welcoming and empowering. Each class sharpens your ability to protect yourself, burns calories, and builds genuine confidence, so you leave every class sweaty, sore, and smiling.

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Adult students practicing a clinch knee drill on a held pad

Your First Class

Every beginner at Apex starts with a private Starter Session. Kids and teens work one-on-one with an instructor for 45 minutes. Adults get 20 minutes of private instruction, then join a beginner-friendly group class with an instructor beside them the whole time. Afterward, we recommend the right class for your age, experience, and goals. No experience or long-term commitment is required.

Book a Starter Session
Young student in an Apex shirt holding a guard stance

Well Run and Well Kept

It's a very positive setting to get some conditioning and gain proficiency in Krav Maga. The facility is well maintained as is the equipment, and the staff is friendly and efficient.

Lou C.

My Child Enjoys It

This is a great place, run by a very enthusiastic, positive person. My child does the beginner classes and enjoys it.

Jason F.

Supportive at Every Level

The instructors have done a great job at making this a supportive and positive environment for people at all skill levels.

Akshay S.