Brian Gallagher and his partner started Throwback Fitness in April 2014 in NYC. They raised less than 100K from friends and family and crafted "the world's funnest workout." Both former investment bankers, neither had experience in fitness which was, "A big plus," says Gallagher. "We went lower risk initially because we didn't know what we were doing! We're students of the minimally viable product and wanted to just get something out there, tweak it and learn as we go. Not everything has to be perfect from the start." Throwback is now certifying teachers nationwide and working with YMCA's to scale their concept.