Sean Ellis (Author) Sean Ellis is CEO and co-founder of GrowthHackers.com, the #1 online community built for growth hackers, with 1.8 million global users. Sean coined the term "growth hacker" in 2010, and is the producer of the Growth Hacking Conference. He regularly speaks to start-ups and Fortune 100s and has been featured in the New York Times, Wall Street Journal, WIRED, Fast Company, inc.com, and TechCrunch.