5,000 Tattoos, and $75M in Revenue: Inside Tough Mudder's Rapid Growth

Will Dean is the founder and CEO of Tough Mudder. Dean came up with the idea for Tough Mudder while at Harvard Business School and at the time, everyone thought he was crazy. With only $8,000 to spend on marketing, Dean hoped to get 500 people at their first event. Instead, 5,000 people showed up and there was no looking back from there.