Michael Mandel

Michael Mandel is the co-founder and CEO of CompStak, a New York-based commercial real estate data platform that crowdsources lease and sale comparables from brokers, appraisers, and researchers, then sells verified analytics to landlords, lenders, and investors. A former Grubb & Ellis broker who got tired of chaotic Monday-morning comp-swaps, he launched CompStak in 2012 with Vadim Belobrovka and has since raised roughly $89M and built a national platform used across every major U.S. market.