CoStar vs Crexi vs Reonomy: CRE Data Platforms Compared

August 8, 2026 · Comparison

CRE professionals comparing property data platforms on screen

Property data is the raw material of commercial real estate, so the platform you subscribe to shapes how you comp, prospect, and market every deal. CoStar, Crexi, and Reonomy are the three names that come up most in any serious CRE data platform comparison — but they were built for different jobs. Here’s the honest, vendor-neutral read on CoStar vs Crexi vs Reonomy.

The short answer

Pick CoStar if comprehensive comps, lease data, and market analytics are non-negotiable and budget allows. Pick Crexi if your priority is listing, marketing, and transacting deals with a modern interface and improving data. Pick Reonomy if your day starts with finding property owners and off-market opportunities before anyone else does. Plenty of shops carry more than one — always demo against your real workflow before signing.

Core positioning at a glance

Each platform anchors on a different part of the deal lifecycle. Understanding that is the whole game.

CoStar positions as the comprehensive CRE data of record — sales and lease comps, tenant and availability data, analytics, and research across major markets. It is the incumbent, and it prices like one.
Crexi started as a listings marketplace (an alternative to legacy listing services) and has expanded into comps, ownership data, and market intelligence. Its pitch is broker-friendly access and modern UX.
Reonomy is a property intelligence and prospecting tool — ownership records, contact data, debt and mortgage history, and off-market signals. Following its acquisition, it now sits inside the Altus Group data portfolio.

Head to head

Capability	CoStar	Crexi	Reonomy
Sales & lease comps	✅ Deepest	⚪ Growing	⚪ Partial
Active listings marketplace	⚪ Limited	✅ Core strength	—
Ownership & contact data	⚪ Partial	⚪ Growing	✅ Core strength
Off-market prospecting	⚪ Partial	⚪ Partial	✅ Core strength
Market analytics & research	✅ Extensive	⚪ Improving	⚪ Focused
API / bulk data export	⚪ Enterprise-gated	⚪ Available	✅ Prospecting-oriented
Ease of onboarding	⚪ Steeper	✅ Fast	✅ Fast
Pricing posture	Premium, quote-based	Mid-market, tiered	Quote-based

Cells reflect general positioning as of 2026; verify current coverage in your specific markets during a trial.

Data coverage and freshness

This is where the money goes, so scrutinize it.

CoStar is generally regarded as the broadest and deepest dataset for comps, leases, and availabilities, backed by a large research operation that verifies records. For institutional valuation and market studies, that depth is the reason teams tolerate the price.

Crexi draws strength from being a live transaction venue — its active-listing data is current because deals flow through it. Its historical comps and ownership layers have expanded quickly, though coverage can be thinner than CoStar’s in some secondary markets.

Reonomy focuses on property and ownership intelligence — who owns an asset, the entity behind the LLC, mortgage and debt history, and contact details for outreach. Its edge is breadth of parcels and owner records for prospecting, not transaction comps.

CoStar

Crexi

Prospecting vs comps vs marketing

The cleanest way to choose is by the job you’re doing most.

If you live in comps and valuation

CoStar is usually the anchor. Appraisers, valuation teams, and brokers who need lease and sale comps that stand up to scrutiny lean on its depth and research backing. Crexi can supplement, and in some markets substitute, but CoStar remains the default reference.

If you live in prospecting and business development

Reonomy is built for this. Filtering by owner type, asset class, debt maturity, and holding period to build a call list of likely sellers — before the asset ever hits the market — is its core loop. This is where an owner-intelligence tool earns its keep, and it pairs naturally with the outbound systems we cover in CRE deal pipeline automation.

If you live in listing and marketing

Crexi is the natural home. Posting a listing to a large buyer audience, running the marketing, and managing inbound interest all happen in one place, with a UX brokers tend to like.

Integrations, API, and data export

CoStar guards its data closely. Exports and any programmatic access are typically enterprise-negotiated and governed by strict licensing — plan for constraints if you want to pipe data into your own CRM or models.

Crexi offers integrations and export paths oriented around listings and deal activity, which fits brokerages standardizing their marketing and pipeline.

Reonomy has historically been the most API- and export-friendly of the three for prospecting use cases, which is why data and revenue teams use it to feed owner records into outbound tooling. Now inside Altus, expect its data to connect more deeply with valuation and analytics products over time.

Whatever you choose, budget for the licensing terms — not just the seat cost. Read the export and usage clauses before you sign, because data portability is where switching costs quietly accumulate. If you’re mapping the broader spend, our CRE brokerage tech stack cost breakdown puts these platforms in context alongside CRM and marketing tools.

Ease of use and onboarding

Crexi and Reonomy are generally faster to get productive in — modern interfaces, shorter learning curves, self-serve for much of the workflow. CoStar is more powerful but denser; teams often need onboarding and time to exploit its full research and analytics surface. That is the trade: depth costs a learning curve.

Pricing posture

Be careful here, and be honest with yourself about total cost.

CoStar is premium and quote-based. Pricing is not published, scales with modules, seats, and markets, and is widely considered the most expensive of the three. Treat any specific number you hear secondhand as directional only.
Crexi sits more in the mid-market, with tiered plans and free listing access for brokers on parts of the marketplace, plus paid intelligence tiers. It is typically more accessible than CoStar.
Reonomy is quote-based, priced around prospecting seats and data access, and generally lands below CoStar for its focused use case.

Deepest comps

CoStar's core differentiator

Marketplace

Crexi's home turf

Owner intel

Reonomy's prospecting edge

Because CoStar and Reonomy are quote-based and CoStar especially varies widely, the only reliable number is the one you get in writing for your seat count and markets. Do not budget off a competitor’s rumored rate.

Where all three fall short

Which should you choose?

Choose by the job that dominates your week, not by the longest feature list.

Choose CoStar if comps, lease data, and defensible market analytics drive your work and budget allows — valuation teams, research-heavy brokerages, and institutional shops.
Choose Crexi if listing, marketing, and transacting deals is the daily loop, and you want modern UX with comps and intelligence that keep improving — a strong fit for many brokerage teams.
Choose Reonomy if prospecting and off-market business development lead, and you need owner and contact intelligence to feed outbound — the natural pick for BD-driven teams.
Run two if, like many brokerages, you need one platform for defensible comps and another for prospecting or marketing. That is a legitimate answer, not a failure to decide.

The best setup is the one that matches your real workflow — and increasingly, the differentiator is not which database you rent but how well you connect it to your pipeline, a theme we explore in automating your commercial real estate brokerage. Demo against live deals, price the fully loaded cost in writing, and let the work decide.

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