In 2012, our founders Michael Mandel and Vadim Belobrovka launched CompStak with a powerful insight: commercial real estate was one of the world's most opaque asset classes, where critical information was scattered, inaccessible, or unreliable. They recognized that brokers, appraisers, and investors were making decisions based on incomplete data, leading to inefficiencies and lost opportunities. So they built something revolutionary - a crowdsourced platform where CRE professionals could exchange verified lease and sale transaction data, creating transparency in an industry that had long operated in the shadows.
What started as a bold experiment in data democratization has evolved into the market leader in commercial deal information, trusted by institutional investors like Wells Fargo and Tishman Speyer, partnered with Columbia Business School, and powering stories in major publications. Today, CompStak handles millions of data points weekly through a network of over 35,000 verified brokers, appraisers, and researchers across 105 U.S. markets. The platform has expanded from its original Exchange model to CompStak One - a comprehensive suite encompassing lease comps, sale comps, loan data, property information, and analytics - and now CompStak AI, which pairs trusted data with artificial intelligence. Every comp undergoes extensive verification to maintain the highest data quality standards, because in an industry where a single data point can make or break a deal, accuracy isn't just important - it's everything.