Directors

Danny Zelig

Danny Zelig is a premier self defense expert and instructor. He is a 2nd generation Israeli Krav Maga instructor of Imi Lichtenfeld, certified directly by Imi’s most senior disciple and Head of the Rank Committee. He has been practicing and … Continued

Rose Valentine

A bay area native, Rose joined KMI in 2011. She became instantly hooked and began training extensively under Danny Zelig, Jeremy Brown, and Deanna Perez. After testing up to P4 she then continued training in Krav Maga until she had … Continued

Flavio Meier

Flavio Meier is a three-time World champion and two-time Pan American champion who was born and raised in Rio de Janeiro, Brazil. Flavio started martial arts very early in life: First Judo at age 6, then Tae KwonDo at 10 … Continued

Emiliya Umrykhina

Ukrainian-born was first introduced to martial arts at the age of 13 by colluding with her father who signed her up for Shotokan karate without telling the rest of her family (grades before sports was the law then). Since then, … Continued

Christopher Martinez

Chris M. has been a student at Tactica – Krav Maga Institute since 2013, where he studied weight training with kettlebell instructor Chris Brown. In 2015 Chris completed the Orange Kettlebell Club (OKC) instructor certification course co-taught by Denis Vasilev. … Continued

Jeff Pung

Born and raised in San Francisco, Jeff understands the complexities of living in an ever-changing, turbulent city. He joined the Tactica family in 2016 and immediately fell in love with Krav Maga’s efficiency and simplicity, as well as its various … Continued

Liam Harel

Born and raised in California, Liam Harel has been doing martial arts since he was 5 with his twin brother Edan Harel; motivated by their father Opher Harel, who is also a self-defense instructor. Liam began doing kids Krav at … Continued

Micha Hershman

Micha is a graduate-level certified Krav Maga instructor with a passion for practical, simple and no-nonsense self-defense solutions. He is available for private and group training sessions (fitness or Krav Maga) at our San Francisco location.

Opher Har-El

Opher Har-El has over 30 years of experience in Krav Maga, after beginning his training in 1983 under Eli Avikazar in Netanya, Israel. He continued his training throughout his extensive military service in the Israel Defense Forces. Opher’s experience of … Continued

Sam Mazaheri

Sam has over 10 years of martial arts experience and began practicing Krav Maga in 2015. He is a black belt in Tae Kwon Do and has trained in Eskrima, Hapkido, and Brazilian Jiu-Jitsu. Sam became interested in Krav Maga after … Continued

Stephen Grillos

As a songwriter and performer, emotions have always been Stephen’s jet fuel. But at a certain point, that fuel started to burn him up and burn him out. Half broken, he found Tactica in 2016 and began training with Danny. … Continued

Thomas Wai

Thomas appreciates and enjoys the practicality, simplicity, and effectiveness of Krav Maga and has been a Krav Maga practitioner for over 5 years. Thomas previously trained in other martial arts, including Brazilian Jiu Jitsu and Muay Thai, and brings this … Continued

Travis Grusecki

Travis has been part of the Tactica Krav Maga Instructor family since 2015, and has dedicated himself to improving technique and instructor skill. Travis enjoys the simplicity and directness of the Krav Maga approach and leads Krav Maga and Fitness … Continued

Edan Harel

With over 10 years of martial arts experiences, Edan is a certified graduate level Krav Maga Instructor. Starting at a young age first doing Taekwondo then Jujitsu and later Krav Maga. Edan has dedicated himself to improve his students to … Continued

Kfir Cohen

Kfir Cohen is a respected high-level firearm and counter-terror instructor at security contractor firms throughout Israel. Kfir is a certified shooting instructor from the Ministry of the Interior of Israel with extensive experience teaching and training shooting and counter-terrorism units. … Continued

Tom Powell

Tom Powell is a passionate martial arts enthusiast who was born in Monroe Louisiana that has been with Tactica Krav Maga for about three years. He has acquired a background in the United States Army in the infantry for six … Continued