Side-by-side comparison of AI visibility scores, market position, and capabilities
Washington DC commercial real estate information and analytics platform; NASDAQ: CSGP; $2.5B+ revenue; owns CoStar, LoopNet, Apartments.com, and Ten-X among others.
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).\n\nCoStar'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.\n\nCoStar 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.
Invitation Homes, the largest U.S. single-family rental REIT with 85,000+ homes, is pivoting to net seller mode in 2026 and expanding into build-to-rent development.
Invitation Homes was formed in 2012 during the post-financial-crisis housing downturn, acquiring distressed single-family homes at scale, and went public on the NYSE in 2017. Today it is the largest owner of single-family rental homes in the United States, with a portfolio of over 85,000 homes concentrated in high-growth Sun Belt and coastal markets. The portfolio targets the starter and move-up segments, with an average home value around $350,000 and generally under 1,800 square feet, serving residents who prefer the lifestyle of a single-family home without the obligation of ownership.
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