Our Instructors

Jeff Isacksen

Head Instructor, Owner

Jeff Isacksen came to his first Krav Maga class in 2011, hoping to better learn how to be an ally and protector to his friends and community.

In 2014, he became a certified instructor and began sharing the art of defense with others. Jeff’s desire to expand his own training and offer the most knowledge that he can to his students has led him to pursue training in other arts. He studies kickboxing, wrestling, and Jiu Jitsu in addition to Krav Maga.

Jeff is the 170lb Texas Catch Wrestling Coalition champion.

Jeff’s students know him for his sharp sense of humor, his emphasis on refining techniques, and his belief in drawing on knowledge from many different arts.

  • Level 4 Krav Maga Instructor | Krav Maga Alliance
  • 170lb Texas Catch Wrestling Coalition Champion
  • Blue Belt in Brazilian Jiu Jitsu
  • NSCA Certified Personal Trainer
  • CPR Certified

Photo by Combat Sports Coverage

Kaci Kai

Chief Executive Officer, Founder, Owner

Kaci Kai began training Krav Maga in 2008 and was immediately taken in by the thrill of the practice and the physical release it provided. Eventually, her love of Krav Maga led her to pursue other arts, such as no-gi Brazilian Jiu Jitsu and kickboxing—including traveling to Thailand to train in Muay Thai and to Montreal to train with professional UFC fighters.

Kaci’s background is in marketing, design, and leadership. She’s worked for industry giants like Whole Foods Market and as an altMBA Coach for Seth Godin.

Her team knows they can count on her for her sound business mind, her incredible work ethic, and her passion for bringing good to the world. Her students can expect a passionate Kravist with a big heart and an unwavering desire to help her students get better in each and every class.

  • Level 1 Krav Maga Instructor | Krav Maga Alliance
  • CPR Certified
  • Mental Health First Aid Certified
  • altMBA Graduate (altMBA 2) & past altMBA Coach

Max Proctor

Krav Maga Instructor, Bag Fit Instructor

Max is a long-time student of Krav Maga, retired military after serving for 8 years in the Air Force, and a certified handgun instructor.

Max’s students can expect an enthusiastic instructor that loves to crack jokes. He’s also known to make you work for a MaxMinute™ (which seems a wee bit longer than the normal 60 second minute).

  • Level 1 Krav Maga Instructor | Krav Maga Alliance
  • Krav Maga Level 4 Student
  • CPR Certified
  • Basic Pistol Instructor | National Rifle Association
  • License to Carry Instructor | Texas Department of Public Safety
  • Level III Security Instructor | Texas Department of Public Safety

Sean Lim

Krav Maga Instructor, Bag Fit Instructor

Sean is a lifelong martial artist with a wealth of experience. He holds a black belt in Taekwondo and he’s an active student in Krav Maga, Muay Thai, and Brazilian Jiu Jitsu.

Sean’s students can expect him to be an easygoing, levelheaded instructor with a wealth of knowledge and a mean lead leg kick. (And he’ll teach you how to improve your kicks too!)

  • Level 1 Krav Maga Instructor | Krav Maga Alliance
  • Krav Maga Level 4 Student
  • Black Belt Taekwondo
  • CPR Certified

Glenn Kasabian

Grappling Instructor

Glenn is a Brazilian Jiu Jitsu purple belt who has been practicing the art for 8+ years. He has several amateur MMA bouts under his belt.

Glenn’s teaching style is oriented towards a fun, accessible approach to martial arts. You can expect him to be a knowledgable instructor who builds community and leadership into his classes.

  • Purple Belt in Brazilian Jiu Jitsu
  • Registered Yoga Instructor (500 hour)
  • CPR Certified
Kelsey Ingerto

Kelsey Ingerto

Bag Fit Instructor

Kelsey became passionate about group fitness in 2010, while attending the University of Florida. While there, she completed an Athletics and Fitness Association of America (AFAA) certification and became a cycling and resistance training instructor. She is an avid pursuer of many different types of fitness—including studio cycling, CrossFit, yoga, HIIT, cardio kickboxing, and more—but she didn’t find a gym community that felt like home until stepping into Krav Maga ATX in 2019.

You can expect Kelsey’s classes to be fun and inclusive. She hopes you’ll leave feeling sweatier, stronger, and a little more confident than when you came in.

  • Krav Maga Level 2 Student
  • AFAA certified
  • CPR Certified

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