Sam Harper co-founded Hippy Feet with Michael Mader in 2016, when the pair were both only months out of college. The Minneapolis-based socks and apparel company donates 50% of its profits to charities offering services to youths affected by homelessness. As the chief marketing officer, Harper has been instrumental in leading Hippy Feet’s growth over the past six years. Leveraging paid marketing via social media, Hippy Feet grew 156% from 2019 to 2020, 45% from 2020 to 2021, and 130% between January and June 2022. Harper has been a mission-driven entrepreneur since his early college years, when he was treasurer on the board of directors for Love Your Melon, an apparel company that donates 50% of its net profits to nonprofits. During the three years he was treasurer, the company saw $6 million in annual revenue.