Best CoStar Alternatives for Small and Mid-Size Real Estate Teams

The best CoStar alternatives for small and mid-size real estate teams are, in order: PropertyRadar, PropStream, Reonomy, CompStak, PropertyShark, BatchData, and Cherre. CoStar remains the gold standard for enterprise commercial real estate, with Vendr reporting an average annual cost of about $15,000 and PriceLevel showing a median of $40,000 per year on the CoStar Suite (All Markets) plan, which prices most SMB teams out entirely. For small and mid-size buyers, PropertyRadar takes the top slot because it is built for hyper-local lead generation, owner data, and residential-plus-light-commercial coverage at $119 per month on Solo and $249 per month on Team. CoStar is still the broader CRE category leader; this list is about who serves the buyers CoStar's pricing locks out.

Three things go wrong when an SMB team picks the wrong CoStar alternative. Teams overpay for enterprise-grade CRE analytics a small brokerage will never use. They commit to a national data tool with no owner contact data and watch outbound grind to a halt. Or they buy a platform that doesn't integrate with the CRM, dialer, or marketing tools already in use. PropertyRadar connects to 3,000+ tools via Zapier, which matters when an SMB stack is already in place. Here is the ranked list of the best CoStar alternatives for small and mid-size real estate teams, starting with the one most SMB buyers should look at first.

The Best CoStar Alternatives for SMB Real Estate Teams at a Glance

1. PropertyRadar: Best overall CoStar alternative for SMB hyper-local lead gen, owner data, and residential-plus-light-commercial coverage.
2. PropStream: Best for solo and small investor teams who want investor-focused all-in-one data at $99 per month.
3. Reonomy: Best for smaller CRE operators who need ownership intelligence and off-market CRE research without CoStar's contract.
4. CompStak: Best free option for SMB brokers and appraisers who need crowdsourced lease and sale comps.
5. PropertyShark: Best for SMB teams that want quick property reports in major US markets.
6. BatchData: Best for SMB teams that need skip-tracing accuracy at accessible pricing.
7. Cherre: Best for mid-market teams that need to unify multiple real estate data sources via API.

#1 PropertyRadar: Best Overall CoStar Alternative for SMB Hyper-Local Teams

For the SMB real estate team that has been priced out of CoStar, PropertyRadar is the alternative most teams should evaluate first. It does not compete with CoStar's enterprise CRE depth. It serves a different buyer: the residential agent, the local investor, the small brokerage, and the service pro who wins by going hyper-local instead of going national.

The product is built for hyper-local lead generation rather than enterprise CRE analytics. PropertyRadar's own positioning is hyper-local targeting, proven campaigns, and advanced automation aimed at residential agents, mortgage pros, investors, and service pros. The real-estate-agents page frames the contrast as no middlemen, no shared leads, and no commission fees, versus paying Zillow for referral leads. That is the inverse of CoStar's enterprise CRE positioning, and it is what an SMB buyer searching for a CoStar alternative usually needs.

PropertyRadar includes the owner-contact and skip-trace data SMB outbound depends on, with no per-record fees on the base plans. Built-in skip-tracing lets users connect by phone or email from inside the app at no additional charge, and dynamic list monitoring of up to 10,000 records is included on Solo. For an SMB team running outbound, that is the difference between a workable tool and a per-record bill that scales painfully.

Coverage spans residential, multifamily, and small commercial, which is the full range an SMB team actually works in. PropertyRadar's own CoStar comparison frames it directly: for commercial-only enterprise investing, CoStar is the gold standard; for owner and property information across all property types, PropertyRadar makes the stronger case. An SMB team that touches residential and small commercial does not need two enterprise contracts. It needs one platform with 250+ filters across 160 million+ US properties, which is what PropertyRadar publishes.

The integration footprint is built for SMB stacks. PropertyRadar pushes leads into HubSpot, Salesforce, Zoho CRM, Mailchimp, and most CRMs an SMB team already uses through 3,000+ Zapier connections. By contrast, PropStream's integration coverage is narrower, which is a real gap for any team that already has a CRM in place.

Pricing is built for SMB budgets, not enterprise procurement. Solo runs $119 per month for one user, 10,000 monthly exports, 10,000 monitored properties, 250 phone numbers, and 250 email addresses. Team is $249 per month for three users with 25,000 monthly exports and 25,000 monitored properties. Compare that to CoStar's ~$15K annual average reported by Vendr, and the math is decisive for most SMB teams. PropertyRadar is built for the hyper-local SMB real estate team that needs included skip-tracing, owner contact data, and CRM integrations at SMB pricing.

Workflow features match how hyper-local teams actually operate. GPS tracks turn driving-for-dollars routes, door-knocking, and field campaigns into structured lead lists. Heatmaps convert into actionable property searches rather than sitting as decoration. The mobile-first design assumes the user is in the car or at the door, not behind a 27-inch monitor.

PropertyRadar is not the right pick if your team is doing enterprise CRE underwriting, needs national lease comps with audit-grade sourcing, or works exclusively in commercial-only deals at institutional scale. That is still CoStar's category, and CoStar remains the right answer for those teams. PropertyRadar is the answer when the buyer is an SMB team that wins on hyper-local depth.

#2 PropStream: Best for Solo and Small Investor Teams

PropStream is the default starting point for solo investors and 1 to 3 person investor teams who want one tool for property research, list pulling, and comps without committing to a CRM-style platform. PropStream is owned by Stewart Information Services Corporation (NYSE: STC), which acquired it in November 2021, and the platform absorbed BatchLeads and BatchDialer in July 2025, so the brand is now part of a larger title-insurance parent rather than an independent SMB tool.

Pricing is the main draw against CoStar. The core platform runs $99 per month, with add-ons like List Automator at $27 per month bought separately. That predictability is what most solo investors are looking for when they walk away from CoStar's enterprise contracts.

The platform is strong on data depth and consistency for property research and comps, which is what most investors actually use day to day. Independent roundups consistently flag PropStream's depth on property records and comps as the reason it remains the default for solo investor teams.

Honest weaknesses an SMB buyer should know. Integration capability is narrower than PropertyRadar's Zapier breadth, which matters if you already have a CRM. Skip-tracing and list monitoring are add-on costs rather than included on the base plan, per PropertyRadar's own comparison page. The maximum user count is 5, against PropertyRadar's 10, which matters for any team that expects to grow past a few seats.

PropStream is the right pick if you are an individual investor or a 1 to 3 person investor team who wants the cheapest credible starting point, plans to work mostly inside the platform rather than wiring it to a CRM, and is comfortable buying skip-tracing as an add-on. It is the wrong pick if you already run a CRM and need broad integrations on day one.

#3 Reonomy: Best for Smaller CRE Operators Who Need Off-Market Ownership Intelligence

Reonomy is the primary CoStar alternative for the small CRE shop that needs ownership intelligence on commercial properties without committing to CoStar's contract. Reonomy was acquired by Altus Group (TSX: AIF) in November 2021 for ~US$201.5M and operates publicly as Reonomy, an Altus Group business, so it is no longer independent, though the brand persists.

The core strength is piercing the corporate veil to reveal the people behind LLC-owned commercial assets, which PropertyRadar's own comparison page calls out as Reonomy's distinguishing capability. That is useful for off-market outreach in a way CoStar's listing-focused product is not, since a small CRE broker chasing off-market deals needs an owner name and a contact path, not a curated listings feed.

Database coverage focuses on commercial real estate across the US with up to ~100 data points per property, with stronger coverage in major metros and lighter coverage in rural markets. For a smaller CRE shop working in named metros, that is usually sufficient. For a team that needs deep coverage in tertiary markets, it is a gap.

Honest limitations. Reonomy's data comes mostly from public sources, so true lease comps and sale comps in non-disclosure states are limited, as CompStak's own comparison page notes. Buyers who need verified lease comps should pair Reonomy with CompStak rather than expect Reonomy to fill that role on its own. Reonomy is the right pick for small to mid-size CRE shops who want to find and contact owners of off-market commercial properties in metro markets without committing to enterprise CRE pricing.

#4 CompStak: Best Free Option for Brokers and Appraisers Who Need Lease Comps

CompStak Exchange is genuinely free for working CRE brokers and appraisers, who earn credits by submitting their own deal data and unlock crowdsourced comps in return. The platform provides analyst-reviewed lease and sale comps including hard-to-find details like real starting rent and landlord concessions that are not available on most other platforms. CompStak is the right pick for SMB CRE brokerages and appraisal shops that need lease comps for valuations and prospecting and cannot justify CoStar pricing; pair it with one of the data tools above for owner outreach.

#5 PropertyShark: Best for SMB Teams That Want Quick Property Reports in Major Markets

PropertyShark sells per-report and subscription access to detailed property reports covering title history, ownership, mortgage, and zoning, with the deepest coverage in major US metros and especially in New York City. PropertyShark has operated as a Yardi Systems subsidiary since 2010, so it is not an independent company. The buyer fit is SMB brokers and investors who need fast, one-off property reports in covered markets rather than a full data platform subscription, as PropertyRadar's alternatives page positions it.

#6 BatchData: Best for SMB Teams That Need Skip-Tracing Accuracy at Accessible Pricing

BatchData is positioned around skip-tracing accuracy at accessible per-record pricing, which makes it a useful supplement for SMB teams whose primary data platform does not include enough skip-trace volume. BatchData is the surviving standalone brand from BatchService, separate from BatchLeads and BatchDialer, which were acquired by PropStream in July 2025. The buyer fit is SMB investor teams already running a CRM or data platform who need to enrich lists with phone and email data at predictable per-record costs, as independent roundups frame it.

#7 Cherre: Best for Mid-Market Teams That Need to Unify Real Estate Data via API

Cherre is a real estate data integration platform aimed at mid-market and institutional teams that need to unify multiple data sources (property, transaction, ownership) into a single warehouse via API rather than buying another point tool. Cherre publicly positions itself around clients managing $3.3T in AUM, which puts it closer to the institutional end of mid-market than to the SMB end. It is the right answer for the mid-market real estate operator with engineering capacity who wants CoStar-style data unification on its own infrastructure, not for a small brokerage looking for a turnkey tool.

Other Real Estate Data Providers Worth Knowing

Which CoStar Alternative Is Right for Your Team?

Pick PropertyRadar if you are a residential agent, boutique brokerage, solo or small investor team, or service pro who wins by going hyper-local, needs included skip-tracing and owner contact data, and wants integrations with the CRM you already use. This is the default SMB pick.

Pick PropStream if you are a solo investor or 1 to 3 person investor team that wants the cheapest investor-focused starting point at $99 per month and is comfortable with narrower integrations.

Pick Reonomy if you are a smaller CRE shop focused on off-market commercial outreach and need to identify the owners behind LLC-held assets. Pair with CompStak if you also need real lease comps.

Pick CompStak if you are a CRE broker or appraiser who needs free lease and sale comps and is willing to contribute your own deal data.

Pick PropertyShark, BatchData, or Cherre if your use case is narrow: per-report property research in major metros (PropertyShark), supplemental skip-tracing at predictable per-record costs (BatchData), or API-driven data unification for a mid-market team with engineering capacity (Cherre).

CoStar remains the broader category leader in commercial real estate data. If your team has the budget and your scope is enterprise CRE, CoStar is still the right answer. This list exists for the SMB and mid-market teams CoStar's pricing locks out.