David Hauser is the co-owner and President of ABC Underwear. Mr. Hauser is a co-founder of Glowing. He is a co-founder of SuperFat. He is an angel investor. He is a co-founder of Vanilla. He is an advisor at Boost. Member of the board of directors of G2 Teh Group. Serial entrepreneur, angel investor and public speaker. He co-founded Return Path, an email performance management company, and Grasshopper, which was successfully bootstrapped to $30 million in revenue before being acquired by Citrix in 2015. While at Grasshopper, he also co-founded Chargify and received an investment from Mark Cuban, which allowed Chargify to form as a separate company and quickly grow to profitability. In 2016, Chargify was acquired by Scaleworks, a SaaS holding company. As a passionate technologist, he is one of the youngest co-founders to lead the company to the list of the Inc. 500 fastest-growing private companies in the United States. He was also co-founder of Return Path, an email performance management company, and founder of WebAds360, an ad-servicing technology provider for small and medium-sized businesses. David has been featured on CNN, was named one of the "40 Under 40" by the Boston Business Journal, and has been written about in the Boston Globe, Wall Street Journal and many other publications.