About Us

Our Story, Our Family, Our Legacy

Global Martial Arts USA is an elite, family-operated martial arts school in Gallatin, Tennessee. For over 55 years, we’ve been building confidence, discipline, and leaders — one student at a time. Small, tall, big, short, man, woman, child, or senior — martial arts is for everyone.

“If you want to learn great martial arts in a family atmosphere, then welcome to our family.” — Grandmaster K.O. Spillmann, Founder
Our Founder

Grandmaster K.O. Spillmann

Grandmaster K.O. Spillmann — 9th Degree Black Belt, Founder of Global Martial Arts USA
Grandmaster K.O. Spillmann
Grandmaster Instructor • Founder & Director

Grandmaster Konrad Spillmann started TaeKwonDo in the 1960s and has been training in martial arts for over 57 years. He received his Instructor-level 2nd Degree Black Belt in TaeKwonDo in the 1980s under Grandmaster Y.K. Kim, and has been a full-time professional martial arts teacher since 1979 — the only career he’s ever had. He received his 9th Dan Black Belt in TaeKwonDo in 2025 and holds verified rankings across multiple disciplines.

9th Dan TaeKwonDo TI 9th Dan Jidokwan WTJF 8th Dan ITF 7th Dan HapKiDo 4th Dan Karate Boxing Judo BJJ Black Belt — Rocian Gracie IBJJF Black Belt L3 Additional Style Rankings

He received his BJJ Black Belt in 2000 under Professor Rocian Gracie Jr — the grandson of founder Carlos Gracie and currently a 6th Degree BJJ Black Belt. They trained together for years in California, and Rocian honored the friendship by naming his son Conrado after K.O. Spillmann.

Over his career, K.O. Spillmann operated 12 academy locations across California, Texas, Arizona, Florida, and India. He has worked with professional fighters and athletes, trained law enforcement, US Military, and foreign military units in hand-to-hand combat and street defense techniques. He’s appeared in print media, movies, and television shows, and performed at major events — including the Orlando Magic Arena halftime show in front of over 16,000 spectators as part of Grandmaster Y.K. Kim’s ATF Demonstration Team.

Organizational Roles & Certifications
ATC USA Founder & Director • GMA Founder & Director • Vice President, TaeKwonDo International (ret.) • International Examiner • Jidokwan 1st Class License • Kukkiwon Master Level • USA TaeKwonDo Master Level • AAU Master Level • WHF Korea HapKiDo VP USA (ret.) • KHF Master Level • CPA Certified • First Aid Certified

He authored martial arts business books and manuals to help other school owners build professional academies, and has served on university advisory boards and private company boards. He has received a state commendation for public service, national and state senate awards, and numerous citations for dedication to the martial arts community. All awards, certificates, and trophies are displayed at the academy.

His commitment to community runs deep. He holds a record for breaking over 411 concrete blocks for St. Jude’s Children’s Cancer Research, and in 1987 broke 250 endcap blocks in under 48 seconds for D.A.R.E. He and his wife have fostered children and worked with youth in poverty-stricken areas across the USA, India, and worldwide — helping them become outstanding citizens and future leaders.

After decades of traveling, seminars, and operating schools nationwide, K.O. Spillmann and his family moved to the Gallatin area in 2011 to focus on teaching and family. They opened a small academy that has grown into a thriving 6,000 square foot facility, relocated in 2024, serving over 60 weekly classes across 8+ martial arts styles.

Produced hundreds of Black Belts, national champions & school owners worldwide
12 academies across 5 states & India before consolidating to Gallatin
State commendation, national & state senate awards for public service
Trained law enforcement, US Military & foreign military in hand-to-hand combat
Why Train Here

What Sets GMA Apart

Background Checked
Every instructor must pass background checks before teaching or coaching. Safe Sport Certified facility.
World Certified
Certified through Kukkiwon, IBJJF, ITF, Jidokwan, AAU, and more. Your belt is recognized internationally.
60+ Weekly Classes
Open 6 days a week with over 60 classes spanning 8+ martial arts styles. A schedule that fits your life.
Family Operated
Three generations of the Spillmann family teaching together. Every student is treated like family from day one.
Internationally Recognized

Certified By The
World’s Top Organizations

Our Team

Meet Our Instructors

World-certified masters and instructors with combined decades of experience — all background checked, all dedicated to changing lives through martial arts.

Grandmaster W. Vardeman — Kung Fu Black Sash, Tai Chi and Wing Chun Grandmaster
Grandmaster Instructor
Grandmaster W. Vardeman
Tai Chi, Wing Chun, Bagua Zhang & Kung Fu

Over 50 years of martial arts experience. Founder of Golden Talon Kung Fu and author of the Golden Beginners Manual. Teaches Tai Chi, Wing Chun, Bagua Zhang, and traditional Kung Fu. United States Air Force veteran (1967–1971, Staff Sergeant) and musician.

Black Sash Kung Fu Tai Chi Wing Chun Bagua Zhang USAF Veteran 50+ Years
Master A. Davis — 5th Degree Black Belt, Academy Director
Certified Master Level
Master A. Davis
Academy Owner & Director

5th Degree Black Belt and Academy Director. Certified through Kukkiwon, ITF, and TIU. Multi-disciplined in TaeKwonDo, Brazilian Jiu-Jitsu, HapKiDo, and KumDo sword. Hyung demonstrator and master-level instructor dedicated to developing top students.

5th Dan TKD Purple Belt BJJ 2nd Dan HapKiDo 2nd Dan KumDo Kukkiwon / ITF / TIU
Master J. Spillmann — 5th Degree Black Belt, After School Program Leader
Certified Master Level
Master J. Spillmann
After School Program Leader

5th Degree Black Belt with over 3 decades of teaching experience and a Bachelor of Science in Child Development. Leads the GMA After School and Homeschool programs, incorporating the “Whole Child” development method refined over two decades. Has worked with children with special needs since age 12, integrating expertise into GMA’s acclaimed Special Needs Program.

5th Dan TKD Blue Belt BJJ B.S. Child Development Special Needs Expert
Master K. Spillmann — 4th Degree Black Belt, Chief Instructor
Certified Master Level
Master K. Spillmann
Chief Instructor & Fight Team
Instructor A. Spillmann — 3rd Degree Black Belt, Academic Tutor
Certified Instructor Level
Instructor A. Spillmann
After School Academic Tutor · Medical Asst.
Instructor C. Denik — 2nd Degree Black Belt, Little Lions Instructor
Certified Instructor Level
Instructor C. Denik
Little Lions & Front Desk
T-Instructor I. Kimble — 1st Degree Black Belt, MMA Assistant
Training Instructor Level
T-Instructor I. Kimble
Little Lions, Jiu Jitsu Coach & MMA Assistant
Instructor A. Avdeev — BJJ Blue Belt, TKD and HapKiDo Black Belt
Asst. BJJ Instructor Level
Instructor A. Avdeev
BJJ Instructor
Recognition

Awards, News & Citations

All awards, certificates, and trophies are displayed at the academy.

News
GMA featured in Music City News GMA Gallatin news article GMA Gallatin news article GMA Gallatin news article GMA Gallatin news article GMA Gallatin news article GMA Gallatin news article GMA Gallatin news article GMA Gallatin news article GMA Gallatin news article GMA Gallatin news article
Awards & Certifications
GMA St. Jude Award GMA Senate Award GMA National Leadership Award GMA Honorary Teacher Award GMA certification GMA certification GMA certification GMA certification GMA certification GMA certification GMA certification GMA certification GMA certification GMA certification GMA martial arts award GMA Main Street Award
Our Facility

6,000 Sq Ft Professional Training Center

Located at 509 Garnet Court, Suite 100 in Gallatin, TN. Fully equipped with anti-bacterial matted floors, professional training equipment, and comfortable waiting areas for parents and families.

GMA main training floor — TaeKwonDo, HapKiDo and Kung Fu training area in Gallatin, TN
Main Training Floor
TaeKwonDo • HapKiDo • Kung Fu
Anti-Bacterial Mats 4 Training Bags 12 Free-Standing Bags Pro Stretch Machines Wing Chun Dummy Kicking Shields Training Weapons Throwing Mats Bamboo Swords
GMA BJJ training room — Brazilian Jiu-Jitsu and Kickboxing area in Gallatin, TN
BJJ Training Room
Brazilian Jiu-Jitsu • Kickboxing
Tatami Mats (Anti-Bacterial) Floor-to-Wall Mats 6 Training Dummies Muay Thai Pads Wall-Mounted Bands Speed Bungees Sport Ladders Tackle Bags
GMA fitness and strength training area with weight machines in Gallatin, TN
Weight Room
Strength • Conditioning • Recovery
Weight Machines Resistance Training Conditioning Equipment Strength Training
GMA private training area with mats and study tables in Gallatin, TN
Private Training Area
Private Lessons • Small Group Training
Matted Floor Wall Padding TV & Video Review Semi-Private Space
GMA After School and Homeschool learning area with study tables, lockers, and educational resources
After School & Homeschool Area
Pickup • Homework • Accredited Curriculum • Martial Arts

A dedicated learning space for our After School and Homeschool students. Kids are picked up from local schools, enjoy snacks, complete homework with tutor support, and participate in martial arts classes — all included in one program. Homeschool students follow the Acellus Academy accredited curriculum with partnership through Alijah Academy and Monarch Software.

Acellus Academy Learning System Homework & Study Tables Reading Materials Arts & Crafts Daily Snacks Chess & Game Tables Student Lockers High-Speed WiFi TV (Disney & Sports) Electronic Attendance
Learn More About Our ASP Program
Free WiFi for parents & students
TV area with Disney & Sports channels
Homework & study tables for after school
Electronic attendance system

Ready to Join the Family?

Experience the difference 55+ years of martial arts excellence makes. Schedule your free trial class today and see why families across Gallatin and Sumner County choose GMA.