CoStar Group (NASDAQ:CSGP) is a leading provider of information, analytics and online marketplaces for the commercial real estate industry. Through its flagship CoStar platform, the company delivers comprehensive property data, market analytics and news to real estate professionals, enabling users to research properties, track market trends and make informed decisions. CoStar’s proprietary database includes millions of commercial properties across a range of asset classes, including office, industrial, retail and multifamily.
In addition to its core CoStar service, the company operates LoopNet, one of the largest online marketplaces for commercial property listings, and Apartments.com, a leading rental listing website for multifamily housing. CoStar Group also owns Ten-X, an online transaction platform that facilitates the sale of commercial real estate assets through an auction-style bidding process. These complementary offerings provide end-to-end solutions for site selection, property marketing, leasing and investment sales.
Founded in 1987 by Andrew C. Florance, who continues to serve as President and Chief Executive Officer, CoStar Group has expanded from a single-market research firm into a global enterprise. The company completed its initial public offering in 1998 and has grown both organically and through strategic acquisitions to broaden its geographic reach and product portfolio. Today, CoStar Group maintains operations in the United States, the United Kingdom, Canada and several countries across Europe, serving thousands of real estate brokers, appraisers, investors and corporate occupiers.
CoStar Group’s platform-driven approach leverages advanced data collection methods, proprietary analytics and real-time market updates to offer unparalleled visibility into property performance and market dynamics. By integrating its various online services—data subscriptions, listing marketplaces and transaction platforms—CoStar Group aims to streamline workflows for real estate professionals and foster greater transparency in commercial property markets worldwide.