In 2009, Jeff was co-founder and CEO of Aspen Core Fitness, LLC (ACF), a fitness equipment, program and education company, based out of Aspen, Colorado. Jeff helped take ACF’s products from conception to producing over $20M in revenue in industry record time. He was integral in all aspects of the business, including business plan development, capital fundraising, board / shareholder assembly and building the team and culture from the ground up. Jeff also reverse-engineered the company’s structure, strategy, assets and human capital for a seamless exit and acquisition by Fitness Anywhere, LLC (TRX) in January of 2011. With the acquisition, Jeff moved to San Francisco to become Sr. Director and shareholder at TRX, assisting in driving company gross revenues to $129M between 2012-2014- the largest revenue growth spurt in the company’s 14 year history.
Jeff has completed four company start-ups in California and Colorado, including “Leagues,” a leadership, life-acceleration organization where its members declare bold unreasonables for themselves, their close relationships and their community (founded in January, 2016). He is also a member of Sir Richard Branson’s entrepreneur networking forums where select individuals are chosen to gather and share ideas with world-renowned business leaders. Jeff was also a seven-time National TaeKwon-Do Champion and three-time, 6-man Taekwon-Do team member and multi-medalist representing the United States in Canada, Malaysia and Russia.
Doniphan Stone has been a business owner and private trainer for nearly 10 years. ‘Donny’ was the creator of Iso Straps, the original concept behind the Corefirst Trainer™, and the Fearless Personal Training app. He co-authored the book Fearless Devotion, about creating and achieving your goals from the inside out. He is the President and Founder of EPIC, a non-profit focused on empowering and equipping individuals towards what God has put on their heart. He is the Co-President and Founder of Corefirst™ and currently lives with his wife, Mia, in Denver Colorado.