CEO & Founder 

David first encountered kettlebells (and other fun, torturous devices!) while studying martial arts during his five years living and working as a college professor in Japan. He has a Master’s in Teaching, Curriculum and Development from the University of Rochester and speaks Japanese.


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Roger Harvey

Roger is the former COO of Crunch Fitness. He was there for 13 years and helped build the brand along with founder Doug Levine and a dedicated, loyal team of talented people.


He helped to negotiate the sale to Bally's for $95 million and then again for the remaining pieces in 2006 to Angelo Gordon for $45 million.


As Rog will tell you, "Personally, I believe that the most important work that I did at Crunch was not the sale of the company...


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Operations Director

Tyler Valencia

After graduating from California State University Long Beach with a Bachelor degree in Kinesiology, Tyler turned an undergraduate internship with a Southern California online fitness education company into a full-time position.


Throughout his time with the same company, he excelled at several positions, developing his skillset with online instructional design and eventually leading him to accept an executive position with the National Council for Certified Personal Trainers (NCCPT). 

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Director of Education

Vincent Metzo

Vincent is the Dean of Advanced Personal Training at the Swedish Institute and the Director of Education for Kettlebell Concepts in New York City.


Vincent’s dance, theatre and acrobatics background lead him to choose exercise science and education as a career. His passion for kettlebells and training grew out of his early training as a dancer and acrobat.

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