CoStar Group, Inc.

Headquarters: Washington, DC, United States

Founded: 1987

Employees: 4,742

CEO: Mr. Andrew C. Florance


Market Cap

$33.81 Billion

USD as of Jan. 1, 2024

history Market Cap History

CoStar Group, Inc. market capitalization over time

Evolution of CoStar Group, Inc. market cap in the past 5 years

Market capitalizations are calculated from the opening stock price at the beginning of each month.

history Market Cap History of CoStar Group, Inc.

Detailed Description

CoStar Group, Inc. provides information, analytics, and online marketplace services to the commercial real estate, hospitality, residential, and related professionals industries in the United States, Canada, Europe, the Asia Pacific, and Latin America. It offers CoStar Property that provides inventory of office, industrial, retail, multifamily, hospitality, and student housing properties and land; CoStar COMPS, a robust database of comparable commercial real estate sales transactions; CoStar Market Analytics to view and report on aggregated market and submarket trends; and CoStar Tenant, an online business-to-business prospecting and analytical tool that provides tenant information. The company also provides Lease Comps and Analysis, a tool to capture, manage, and maintain lease data; CoStar Lease Analysis; Public Record, a searchable database of commercially-zoned parcels; CoStar Real Estate Manager, a real estate lease administration, portfolio management, and lease accounting compliance software solution; and CoStar Risk Analytics and CoStar Investment Analysis that provides market research, consulting and analysis, portfolio and debt analysis, and management and reporting services, as well as STAR Report that offers benchmarking and analytics services for the hospitality industry. In addition, it offers apartment marketing sites, such as,,,,,,,, and Off Campus Partners; LoopNet Premium Lister; LoopNet Diamond, Platinum, and Gold Ads;,, and for rural land for-sale;,, and for operating businesses and franchises for-sale; Ten-X, an online auction platform for commercial real estate; and HomeSnap, an online and mobile software platform, as well as, a homes for sale listings site. CoStar Group, Inc. was founded in 1987 and is headquartered in Washington, the District of Columbia.

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Key People

Founder(s): Andrew Florance

Andrew C. Florance, President & CEO Scott T. Wheeler, CFO Michael R. Klein, Chairman


Revenue: US$1.94 billion (2021)

Net income: US$292 million (2021)

Total assets: $3.313 billion (2018)

Total equity: $3.022 billion (2018)



1331 L Street, NW

Washington, DC 20005

United States

Phone: 202-346-6500

Fax: 877-739-0486