CoStar Group, Inc.
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About
CoStar Group, Inc. is a provider of commercial real estate information, analytics, and online marketplace services. Headquartered in Washington, D.C., the company operates platforms including CoStar, LoopNet, Apartments.com, and Homes.com. CoStar's database contains detailed information on commercial properties, market analytics, tenant data, and lease comparables used by brokers, investors, and property managers. The company's residential platforms serve apartment and home renters, property managers, and real estate agents. CoStar is the dominant player in commercial real estate data and analytics.