CoStar Group logo

CoStar Group

Leader

Washington DC commercial real estate information and analytics platform; NASDAQ: CSGP; $2.5B+ revenue; owns CoStar, LoopNet, Apartments.com, and Ten-X among others.

Best for: CRE Market Data & AnalyticsMarket leader
72
AI Score
Grade B
AI Visibility Score (Beta)
Real Estate & ConstructionCRE Market Data & AnalyticsWebsiteUpdated October 2026

Brand Intelligence Graphcompany

Part ofCoStar
Integrates with
Capabilities
CRE Market Data & Analytics

Company Overview

About CoStar Group

CoStar Group is the dominant commercial real estate information, analytics, and marketplace company in the United States, headquartered in Washington, DC. Founded in 1987 and publicly traded on NASDAQ (CSGP), CoStar has grown to over $2.5B in annual revenue through a combination of organic growth and strategic acquisitions. The company's portfolio of brands includes CoStar (the institutional CRE research and analytics platform), LoopNet (the leading commercial property listing marketplace), Apartments.com (the largest apartment listing marketplace), and Ten-X (the digital commercial real estate auction platform).

Business Model & Competitive Advantage

CoStar's flagship research database aggregates data on millions of commercial properties across the US and internationally, including lease comparables, sales transactions, building specifications, tenant information, and market analytics. This data is gathered through a large field research team that physically visits and verifies properties, combined with automated data aggregation from public records, legal filings, and broker submissions. CoStar's subscribers include commercial real estate brokers, lenders, investors, corporate occupiers, and appraisers who rely on its data for deal sourcing, underwriting, and market research.

Competitive Landscape 2025–2026

CoStar has invested aggressively in international expansion, acquiring SIOR's data assets, OnTheMarket in the UK, and other regional platforms. The company also made a major push into residential real estate with its acquisition of Homesnap and investments in its Homes.com platform, competing with Zillow and Realtor.com. CoStar's combination of subscription data products, marketplace advertising, and transaction platforms makes it a uniquely diversified real estate technology company.

Founded
1987
Headquarters
Washington, DC
Revenue
$2.5B
Curated content • Fact-checked and verified

Key Differentiators

Market Leader

CoStar Group is recognized as a market leader in the PropTech sector, demonstrating strong industry presence and customer trust.

Enterprise Scale

With $2.5B in revenue, CoStar Group operates at enterprise scale with proven market validation.

Frequently Asked Questions

Estimated Visibility Trend (Beta)

Simulated 8-week rolling score

72
→ Stable

Based on estimated brand signals. Historical tracking coming soon.

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