Bronni Karatassos was born and raised in South Africa and relocated to Atlanta in 1992. Bronni has always been an enthusiastic athlete playing competitive sports throughout her school career. She started dance lessons at age 4 and danced competitively for the next 20 years. She is focused on the well being of the whole person including the need for people to be as physically and mentally acute as they can be. Hence she decided to follow her undergraduate degree at Georgia State with a Masters in Physical Education. Bronni taught health and physical education to elementary school children for seven years. She gained her American Council on Exercise certification so she could share her enthusiasm for physical fitness with people of all ages as a fitness instructor.

Bronni is very active in the lives of her two sons volunteering at their school and at their many athletic activities. She still makes time to participate in half marathons and triathlons. She and her boys live in Atlanta.

Bronni is the regional trainer for the Orangetheory Fitness Sandy Springs and Cumberland studios and is adored by members for being so attentive to detail during the workout. Her passion for fitness inspires others to challenge themselves to be their best.


Born in Fort Bragg, NC but raised in Germany and England, UK. Naomi grew up always into sports and dancing. Entertaining is her thing. Always a sprinter on the track field. Graduated from Cambridge Performing Arts, UK and moved to Atlanta, GA. Pursing her passion for the arts, her love for fitness and motivating others never left. AAAI ISMA (American Aerobic Association International Sports Medicine Association) certified. Bringing you great music, energy and fun. Work Hard, Play Hard
Courtney is from Tennessee (smaller town called Cleveland) and blessed to have been with Orangetheory Fitness for almost two years. For Courtney, coaching is fun and amazing but the best thing about delivering the workouts is bringing out the best in each client and helping them find their SUPER ROCKSTAR "ALL OUT" attitude!! Building relationships is such an important part for her - she loves having the opportunity to be a part of people's' fitness journeys and helping them reach their goals!! All while kicking your butt, playing awesome music, and having fun!

Courtney was a cheerleader for 9 years; danced competitively for 2 years and started in the fitness industry 9 years ago. She's taught group fitness classes such as hip hop aerobics, muscle conditioning, cardio classes, Pilates and boxing. She fell in love with fitness and health and decided to make it her career and she is loving every minute of it! Courtney can't wait to coach you!!
Desi Steib, born in New Orleans Louisiana. Attended the University of Minnesota where I was a Division I football player and student athlete. Graduated with a bachelors in Business & Marketing Ed. Also attended the Art Institute of Atlanta where I received an Associates degree in Culinary Arts. My Fitness Certification is through I.S.S.A.

My motivation for being a fitness instructor is from my hometown of Vacherie, Louisiana. Along with amazing food we also have a high rate of obesity and people that lives get taken way before their time due to heart attacks etc. so my focus is to be the most well known fitness instructor (leading by example) to touch as many lives as I am able to!
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