CoStar Group, Inc. CSGP

CSGP Company Overview

CoStar Group, Inc. is a U.S.-based commercial real estate information, analytics, and online marketplace company that operates primarily in the real estate technology and property data industries. The company provides subscription-based data, software, analytics, digital advertising, and online marketplaces that support commercial real estate professionals, brokers, investors, lenders, property owners, and residential real estate participants. Its core revenue drivers include recurring subscriptions to proprietary commercial property databases and marketplace platforms, as well as advertising and lead-generation services tied to online real estate listings.

The company’s primary brands include CoStar, LoopNet, Apartments.com, Homes.com, STR, BizBuySell, and Land.com. CoStar has developed a large proprietary database of commercial real estate information gathered through internal research operations and technology-enabled data collection. Founded in 1987 by Andrew Florance, the company initially focused on commercial real estate information services before expanding through acquisitions and platform development into multifamily rental marketplaces, hospitality analytics, residential real estate portals, and small-business-for-sale marketplaces. Industry observers and company filings consistently identify CoStar’s scale of proprietary data, recurring subscription model, and network effects across real estate marketplaces as key competitive advantages.