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Advice built on the client’s own numbers.
A recommendation is only as independent as the data behind it.
For Consultancy Firms · CompStak One Connect
Clients pay for judgment, and they check the numbers behind it. CompStak gives your team independent lease, sale, and loan data across 105 US markets, sourced from the professionals who closed the deals.
Gotham CBD vs. Gotham Ridge · Class A office · every figure linked to its comps
Trusted by the leaders in commercial real estate
A recommendation is only as independent as the data behind it.
Sourcing eats the time meant for analysis.
Any consultancy can quote a submarket average.
CompStak One Connect answers each of these with verified, analyst-reviewed comps.
Get StartedSupport due diligence with lease, sale, and loan data including NER, free rent, cap rate, NOI, LTV, and loan maturity dates.
Get StartedMulti-market pull · client engagement
Class A office · 4 markets
Rent Predictor returns the Estimated Starting Rent Today for a client’s space, including one with no lease on file, with the comps behind the estimate.
Get StartedRent Predictor · client asset
400 Mandel Street · Floor 28 · 42,000 SF
Query CompStak comps from ChatGPT, Claude, Gemini, or Copilot through the Agent Connect MCP server, and join them against your own records. Statistics and trends are free; pulling the underlying records counts toward your weekly comp limit.
Get Started“Draft a multi-market comparison of Class A office NER and cap rates for Gotham, Dallas, and Austin since 2025.”
Gotham leads on rent at $75.50 NER. Dallas is 35 bps wider on cap rate. Austin sits between the two on both.
Rent Predictor and Agent Connect are available on CompStak One Connect.
Agent Connect puts CompStak inside Claude, ChatGPT, Gemini, and Copilot. Ask the way you’d ask an analyst, and the work comes back with its source comps attached.
“Write a market comparison for a client choosing between Dallas-Ft. Worth, Atlanta, and Phoenix: industrial rents, concessions, and lease terms over the last two years.”
“Build a benchmarking table for my client’s Manhattan buildings against submarket medians for new leases this year.”
“Draft the cold storage section of a market study: leases over 50,000 SF nationwide in the last two years.”
“Who are the largest landlords in Midtown East by buildings owned, and what have they leased this year?”
Access verified lease, sale, loan, and property data across major CRE asset types in 105 markets, with the details to analyze markets, value assets, and underwrite opportunities.
Across the asset types you work with:
*Multifamily data powered by RealPage
Each comp goes through a multi-step data verification process.
40,000+ verified CRE professionals at brokerage and appraisal firms submit comps daily. Transaction data is received and reviewed multiple times.
Machine learning and statistical anomaly detection flag figures outside the expected range for the market and building. CRE Ontology resolves the address to one building and matches every party on the deal to a verified entity. Flagged records are held for review.
Our team of CRE research analysts review and verify data daily. They cross-check each transaction against deal participants and property records. Data is never estimated or blindly added to the system.
Pull verified comps across markets and draft deliverables faster.
Lease, sale, loan, and property records reviewed by CompStak’s analyst team, with a documented sourcing methodology a client can check independently.
Yes. Coverage runs to 105 US markets, so a multi-market engagement can be sourced in a single pull rather than market by market.
Every comp is processed by a multi-step data verification system, including machine learning algorithms, statistical anomaly detection, and a team of CRE data analysts. Read more about our data standard.
Rent Predictor, which puts a defensible number on any space, and Agent Connect, which drafts benchmarks and multi-market comparisons inside Claude, ChatGPT, Gemini, or Copilot.
CompStak has collected 4M+ versions of lease and sale comps across 105 US markets, contributed by more than 40,000 verified CRE professionals and reviewed by CompStak’s analyst team.