CoStar Group

CoStar Group, Inc.
	Headquarters in Arlington, Virginia
Company type	Public
Traded as	Nasdaq: CSGP; Nasdaq-100 component; S&P 500 component;
Industry	Commercial property
Founded	1987; 38 years ago
Founder	Andrew Florance
Headquarters	Arlington, Virginia, U.S.
Area served	Canada; France; Germany; Spain; United Kingdom; United States;
Key people	Andrew C. Florance (president and CEO); Michael R. Klein (chairman); Lisa Ruggles (SVP, global operations); Frank Simuro (CTO);
Revenue	US$2.74 billion (2024)
Operating income	US$5 million (2024)
Net income	US$139 million (2024)
Total assets	US$9.26 billion (2024)
Total equity	US$7.55 billion (2024)
Number of employees	6,593 (2025)
Subsidiaries	Apartments.com; Homes.com; LoopNet; Matterport; STR;
Website	costargroup.com
	Footnotes / references;

CoStar Group, Inc. is an American provider of information, analytics, and marketing services to the commercial property industry in North America and Europe. Founded in 1987 by Andrew C. Florance and based in Arlington, Virginia, the company has grown to include the online database CoStar and several online marketplaces, including Apartments.com and Homes.com.

^ CoStar Group 2024 Annual Report (Form 10-K) (Report). U.S. Securities and Exchange Commission. February 20, 2025. Retrieved March 7, 2025.
^ McPherson, Marian (November 4, 2024). "CoStar moves one step closer to securing Arlington HQ". Inman.

[1] CoStar Group 2024 Annual Report (Form 10-K) (Report). U.S. Securities and Exchange Commission. February 20, 2025. Retrieved March 7, 2025.

[2] McPherson, Marian (November 4, 2024). "CoStar moves one step closer to securing Arlington HQ". Inman.

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CoStar Group

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