Authors of Shortcut Your Startup, Courtney and Carter Reum, have been recognized as two of Goldman Sachs’ Builders + Innovators Top 100 Most Intriguing Entrepreneurs for 4 years in a row. They are the founders of M13, a holding company that differentiates itself by accelerating consumer brands at scale using a repeatable playbook approach. M13 has invested in over 125 companies, including names like Lyft, Pinterest, Warby Parker, ClassPass, Blue Bottle, Shake Shack, Slack, and SpaceX.