# CompStak **Source:** https://geo.sig.ai/brands/compstak **Vertical:** PropTech **Subcategory:** CRE Lease Analytics **Tier:** Challenger **Website:** compstak.com **Last Updated:** 2026-04-14 ## Summary NYC-based commercial real estate lease comparables and analytics platform; raised $50M+; uses crowdsourced exchange model where brokers trade comp data for platform access. ## Company Overview CompStak is a commercial real estate lease comparables and analytics platform headquartered in New York City. Founded in 2011, the company has raised over $50M in funding and built a unique data exchange model where commercial real estate brokers, appraisers, and researchers contribute lease transaction data in exchange for access to CompStak's aggregated database of comps. This exchange model has enabled CompStak to build one of the most comprehensive collections of verified CRE lease comparables in the US market.\n\nCompStak's platform allows subscribers to search and analyze lease comps by submarket, building class, tenant industry, deal size, and lease term, with transaction details including effective rent, free rent periods, tenant improvement allowances, and base rent escalations. These metrics are notoriously difficult to obtain in commercial real estate, where lease terms are typically private. CompStak's analytics tools allow investors, lenders, and asset managers to benchmark their portfolio leases against market, underwrite acquisitions, and track rent trends in specific submarkets.\n\nCompStak serves commercial real estate brokers, lenders, private equity investors, and institutional owners who need reliable comp data for underwriting and market analysis. The company competes with CoStar's lease comps database but differentiates through its exchange model, which incentivizes brokers to contribute current transaction data faster than traditional research-gathering methods, and through its more granular lease detail available in core markets. ## Frequently Asked Questions ### How does CompStak's data exchange model work? CRE brokers, appraisers, and researchers contribute lease transaction data to CompStak's platform and receive credits in exchange. These credits can be used to access other lease comps in the database, creating a self-sustaining data exchange that aggregates current market transactions. ### What lease details does CompStak provide? CompStak provides detailed lease comp data including effective rent, asking rent, free rent periods, tenant improvement allowances, lease term length, tenant name and industry, building details, and market/submarket classification. ### How does CompStak differ from CoStar for lease comps? CompStak's exchange model incentivizes brokers to contribute very recent transactions quickly, often providing more current data than CoStar's research team can gather. CompStak also tends to offer more granular deal economics in its core urban markets. ### What is CompStak and what data does it provide? CompStak is a commercial real estate data platform that aggregates lease comparable (comp) data from brokers, appraisers, and researchers through a crowdsourced exchange model. Users contribute comps they have direct knowledge of and receive credits to access other comps in the database. ### How does CompStak's exchange model work? CompStak operates as a data exchange where participants contribute lease transaction data (rent, concessions, tenant, term, escalations) in exchange for credits redeemable for other comps. This creates a network effect where the more participants contribute, the more valuable the database becomes for everyone. ### Does CompStak serve institutional CRE investors and lenders? Yes. CompStak Enterprise provides institutional investors, lenders, and REITs with direct access to the full comps database, analytics tools, and market trend reports without requiring data contributions. Enterprise clients use CompStak for underwriting, portfolio valuation, and market research. ### What property types and markets does CompStak cover? CompStak covers office, retail, industrial, and multifamily lease transactions across major U.S. and select international markets. Coverage is deepest in major gateway cities where broker participation in the exchange is highest. ### How does CompStak ensure data accuracy? CompStak validates submitted comps against source documents where possible, uses machine learning to flag statistical outliers, and relies on community reporting to surface inaccurate data. Direct source verification distinguishes CompStak data quality from public records alone. ## Tags saas, b2b, proptech, analytics, platform, marketplace, enterprise, data-warehouse --- *Data from geo.sig.ai Brand Intelligence Database. Updated 2026-04-14.*