While exact numbers of active jiu-jitsu gyms globally and/or in the US were unavailable, there are many extremely high-quality and prominent gyms/schools available worldwide with top-ranked professional instructors.
Boxing is a particularly historied martial art that can be traced back to 4,000 BC.
This sport consists of fighting solely with the hands/fists.
Some estimates of the number of boxing gyms in the US reach 7,049 locations.
USA Boxing is an organization that maintains lists of active boxing gyms in the US, along with sanctioned competition events in every US state.
There are many disciplines of kickboxing, including unique styles, and some that even allow certain grappling techniques, all involving both punching, kicking, and sometimes the use of knees and/or elbows.
Kickboxing styles can be very effective in MMA as kicks, punches, knees and elbows are allowed in competition.
Team USA Taekwondo maintains lists of active clubs, schools, gyms, and sporting events for taekwondo, an Olympic style of kickboxing.
Martial Arts for Self Defense -- Krav Maga
Krav Maga is a highly popular martial arts practice that emphasizes self-defense tactics that include street fighting, weapons use and defense, and real-world, no-rules techniques.
An organization called Krav Maga Worldwide lists over 150 certified Krav Maga training centers globally.
Common participants in this training include government employees, military and law enforcement personnel.
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