During the course of his 29 years in martial arts, Moshe has trained with some of the greatest instructors around the world. He is certified by Wingate, Israel's national martial arts certification board, and by Itay Gil, his instructor and friend of many years. He spent several years working for the Israeli Board of Education as a Krav Maga instructor and contributor. He spent two years training the Jerusalem Elite security guards. In 2010, he was inducted into the International Martial Arts Hall of Fame as instructor of the year.

Esther Lehman, a fourth degree black belt in Krav Maga, is one of the highest ranked and most respected female Krav Maga instructors in the world. She has toured with Moshe Katz and taught seminars all over the world. She is also a certified Sports and Fitness professional, certified by Wingate, Israel's highest sports authority. She is a professional nutrition and health consultant.