About CompStak

CompStak Exchange

CompStak is the first crowdsourced commercial real estate lease & sales comparable database.

Founded in 2011 by former NYC broker Michael Mandel to fix the inefficiencies of data sharing in the CRE industry, Compstak is the world's first comprehensive database of commercial lease and sales comparable data. We collect and verify actual, deal-level transaction records reported directly to us by brokers, appraisers, and researchers on the ground. We combine those records with critical property-level details, leaving you with lease, sales, and property comps that are recent, accurate, and searchable.

Through CompStak Exchange, brokers, appraisers, and researchers are able to trade information about the deals in their markets for free. CompStak Enterprise enables lenders, landlords, and investors to access leases, sales, and market data on a subscription basis.