CompStak
CompStak is a crowdsourced commercial real estate data platform.
Last updated September 10, 2026
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Overview
CompStak describes itself as the leading crowdsourced commercial real estate data platform, handling millions of data points each week to create a comprehensive CRE data set. Its CompStak One platform provides lease comps, sale comps, loan data, property data, and analytics, and is available on a subscription basis exclusively to qualified lenders, landlords, and investors operating in the commercial real estate space. The company states its data is sourced nationwide from 40,000+ brokers, appraisers, and researchers, and that every comp undergoes extensive data verification.
History
CompStak describes itself as the leading crowdsourced commercial real estate data platform, handling millions of data points each week to create a comprehensive, robust CRE data set. Its mission is a commercial real estate industry in which accurate and transparent data leads to better, faster deals for everyone. Michael Mandel, a former NYC commercial broker, founded CompStak to fix the inefficiencies of data sharing in the CRE industry. Vadim Belobrovka is Co-Founder and CTO.
Products and positioning
Leading crowdsourced commercial real estate data platform; CompStak One is available on a subscription basis exclusively to qualified lenders, landlords, and investors operating in the commercial real estate space.
CompStak One
One platform for reliable and accurate commercial real estate data, covering lease comps, sale comps, loan data, property data, and analytics. Available on a subscription basis exclusively to qualified lenders, landlords, and investors operating in the commercial real estate space.
CompStak Exchange
Listed among CompStak's products.
CompStak AI
Listed among CompStak's products.
API
Listed among CompStak's products.
Strategic Advisory
Listed among CompStak's products.
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