lease-comps
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CompStak
CompStak is a New York-based commercial real estate data and analytics company that runs a crowdsourced marketplace where brokers, appraisers and researchers trade verified lease and sale comps for credits. Founded in 2012 by former broker Michael Mandel and engineer Vadim Belobrovka, it turns hard-to-find transaction details - starting rents, net effective rents, cap rates, net operating income - into structured, analyst-reviewed data used by many of the largest CRE investors, lenders and banks in the U.S.
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.