CoStar Group, Inc. is a provider of online real estate marketplaces, information and analytics in the property markets. The Company conducts expansive, ongoing research to produce and maintain the comprehensive database of real estate information. It manages its business geographically in two segments: North America, which includes the United States and Canada, and International, which primarily includes Europe, Asia-Pacific and Latin America. Its portfolio of information, analytics and online marketplaces is branded and marketed to its customers and marketplace end users under the primary brands of CoStar, LoopNet, Apartments.com, STR, Ten-X, BizBuySell, Land.com, Homesnap and Homes.com. CoStar is engaged in commercial real estate information, analytics, and news, enabling clients to analyze, interpret and gain insight on property values, market conditions and availabilities. LoopNet is an online commercial real estate marketplace. Apartments.com is an online marketplace for renters.