Welcome to UNDERWORLD BJJ, where we are dedicated to providing the highest quality Brazilian Jiu-Jitsu training in a supportive, family-friendly environment. Our mission is to empower students of all ages and skill levels through the art of BJJ, fostering physical fitness, mental resilience, and personal growth.
At UNDERWORLD BJJ, we believe that Jiu-Jitsu is more than just a martial art—it's a way of life. Our approach combines technical excellence with practical application, ensuring that our students develop skills that work both on and off the mats.
Whether you're looking to compete at the highest levels, learn self-defense, or simply get in the best shape of your life, our expert instructors are here to guide you every step of the way.

Head Coach - Black Belt
15+ years of experience competing at the highest levels.

Kids Program Director - Brown Belt
Specializes in teaching children of all ages and abilities.

Competition Coach - Black Belt
Multiple-time IBJJF champion with a focus on competitive training.
We offer a variety of classes for all skill levels, from beginners to advanced practitioners. Join us at a time that works for your schedule!
Invest in your health, fitness, and self-defense skills with our flexible membership options. Join our community today and start your Jiu-Jitsu journey!
Perfect for beginners looking to start their Jiu-Jitsu journey.
Our most popular option with full access to all classes and amenities.
Hear from our community about how training at our academy has impacted their lives.
Have questions or ready to start your Jiu-Jitsu journey? Get in touch with us today!
Train together as a family with our comprehensive package.
"I have been training at Underworld for a few years now, I started with no previous knowledge/experience in martial arts at all. The whole team welcomed me like a family member, they helped me progress in BJJ in a family-type environment. I can’t recommend this place enough. The coaches are great, knowledgeable and very approachable, and the facility is huge, with tons of mat space. Perfect place to train!"
"I have been training consistently for 7 years and have trained in well over a dozen schools all across the country. Believe me when I say, this school is different. From the second I entered the gym, I was treated like family. I have met hundreds of black belts, and they are all passionate about Jiu Jitsu, but Professor Carlos is unique. His motivation for teaching Jiu Jitsu is truly pure. If you are in the area and looking to learn world-class Jiu Jitsu in an incredible community, you have to give this gym a try. This is definitely my second home when I visit Baltimore!"
"Dropped in while I was in town visiting some family, super friendly team and very knowledgeable instructors"
"Awesome facilities and great instructors. I always drop in for open mat. My second home away from home."
301 Najoles Rd, Millersville, MD 21108, USA
Mon-Fri: 6:00 AM - 9:00 PM
Sat: 9:00 AM - 2:00 PM
Sun: 10:00 AM - 12:00 PM
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