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CoStar Group, Inc. (CSGP) is a technology company in the media distribution platforms industry, based in Arlington, United States, with about 8,441 full-time employees.
It reported revenue of $3.25 billion for fiscal year 2025, up 18.7% from fiscal year 2024, and net income of $7.00 million. In Q2 2026 (the quarter ended June 30, 2026) revenue was $925.00 million, up 18.4% from a year before. Its largest business segment, Commercial Real Estate, brought in 55% of segment revenue in fiscal year 2025. Its market capitalization was $12.02 billion as of October 9, 2026.
Figures from company filings and market data; latest fiscal year ended December 31, 2025; market data as of October 9, 2026.
CoStar Group, Inc. provides information, analytics, and online marketplace services to real estate and related business communities in the United States, Australia, Canada, Europe, the Asia Pacific, and Latin America.
CoStar reported $3.25 billion in revenue for fiscal year 2025, up 18.7% from $2.74 billion in fiscal year 2024. In Q2 2026 revenue was $925.00 million.
Commercial Real Estate, with $1.79 billion or 55% of segment revenue in fiscal year 2025. Next: Residential Real Estate (45%).
$12.02 billion as of October 9, 2026.
Listed companies of a similar size in the same industry (media distribution platforms) include Zillow Group, Inc. (Z), Kanzhun Limited (BZ), Match Group, Inc. (MTCH), Duolingo, Inc. (DUOL).