CoStar is still the benchmark for commercial real estate data, but it is not the only serious option. Buyers now compare it with platforms that focus on listings, ownership data, lease comps, debt, sales history, and market signals. CoStar Group reported $2.74 billion in 2024 revenue, which shows the scale behind its data operation [source: CoStar Group]. Still, the best platform depends on the job, not the brand name.
TLDR: If you need broad CRE research, CoStar remains the safest starting point. If your team sources deals, Crexi is often faster for active listings and buyer activity. If you need owner records or off-market prospecting, Reonomy and similar property intelligence tools can save hours. For example, a broker building a 200-property retail owner list might use CoStar for comps, Crexi for live listings, and Reonomy-style ownership data to cut a six-hour research task to under two hours.
1. CoStar: Best for full-market research
CoStar is the most complete platform on this list. It covers property data, lease and sale comps, tenant records, market reports, vacancy, rent trends, and broker activity. For institutional investors, lenders, appraisers, and large brokerages, it is often the default database.
The strength is depth. The weakness is cost and workflow. Smaller firms may feel they are paying for more than they use. Honestly, it feels like some searches take more clicks than they should, especially when you only need a quick comp or owner check.
- Best for: investment sales, leasing teams, research departments, lenders
- Main value: broad data coverage and market reports
- Watch out for: pricing, contract terms, and training time
2. Crexi: Best for active listings and deal flow
Crexi is built around listings, auctions, broker marketing, and buyer engagement. It is strong for teams that care about what is actively for sale or lease right now. The interface is cleaner than many older CRE tools, and brokers use it to promote assets to a wide buyer pool.
Crexi is not a full replacement for CoStar research. It is more useful as a deal outlet and sourcing tool. If a team tracks investor demand, listing performance, and buyer inquiries, Crexi can be very practical.
- Best for: brokers, buyers, sellers, auction teams
- Main value: active listings and transaction marketing
- Watch out for: less depth in historical comps than research-first tools
3. Reonomy: Best for owner and property intelligence
Reonomy became known for property ownership data, LLC tracing, mortgage data, and off-market prospecting. It is useful when the question is simple but hard to answer: Who owns this asset, and how can I reach them?
Availability and packaging can vary because Reonomy has been tied into broader data products after acquisition. So buyers should confirm what is included before signing. Ask for sample searches in your target markets. Do not rely only on a sales demo.
- Best for: prospecting, acquisitions, debt origination, owner research
- Main value: owner records and property filters
- Watch out for: data freshness and coverage by county
4. CompStak: Best for lease and sale comps
CompStak focuses on verified lease and sale comps. Its model depends on a network of real estate professionals who contribute deal data. In return, users gain access to comps that can help with underwriting and pricing.
This can be very useful in office, retail, and industrial markets where lease terms are not easy to find. It drives me crazy that lease comp data is still so fragmented in many cities, but CompStak is one of the better answers to that problem.
- Best for: leasing brokers, valuation teams, acquisitions analysts
- Main value: lease comps and transaction details
- Watch out for: uneven coverage in smaller markets
5. LightBox: Best for parcels, risk, and location data
LightBox serves a different need. It combines property data, parcel mapping, environmental risk, lender tools, location intelligence, and valuation support. It is often used by lenders, appraisers, environmental consultants, and site selection teams.
LightBox is a strong pick when the work depends on maps, boundaries, and risk checks. It may not replace CoStar for broker research, but it can add better context for land, zoning, and site due diligence.
- Best for: lenders, appraisers, environmental firms, developers
- Main value: parcel data, maps, environmental records
- Watch out for: product modules that may need separate pricing
6. Moody’s CRE: Best for market forecasts and risk analysis
Moody’s CRE, including data assets from Reis, is strong in market research, forecasts, rent trends, vacancy, and risk models. It fits users who need to explain why a market may improve or weaken, not just what traded last month.
This is useful for lenders, portfolio managers, and credit teams. It is less of a broker listing tool. Think of it as a decision-support system for risk, capital planning, and market assumptions.
- Best for: lenders, credit teams, portfolio analysts
- Main value: forecasts, vacancy trends, rent analysis
- Watch out for: less focus on live listing activity
7. MSCI Real Assets: Best for institutional transaction data
MSCI Real Assets, which includes Real Capital Analytics data, is used by many institutional investors for sales transactions, capital flows, ownership, pricing, and market tracking. It is especially strong for large deals and cross-market comparisons.
MSCI’s real estate data is often used by investors who need global or national transaction context [source: MSCI]. It may be overkill for small local brokerage teams, but it is serious data for capital markets work.
- Best for: institutional investors, capital markets teams, research groups
- Main value: sales data, capital flows, ownership tracking
- Watch out for: enterprise pricing and narrower day-to-day broker use
How to choose the right platform
Start with the task. If the team needs market coverage and comps, shortlist CoStar and CompStak. If the goal is finding active deals, test Crexi. If prospecting is the pain point, compare Reonomy-style owner data with LightBox. For risk, forecasts, and capital markets work, Moody’s CRE and MSCI Real Assets are stronger fits.
Ask every vendor for the same proof: five sample properties, three recent comps, one owner search, and coverage in your top three markets. Then time the task. If a tool saves 30 minutes per analyst per day, that can matter more than a flashy dashboard.
