CoStar Group, Inc. revenue by segment CSGP

Annual Quarterly

CoStar Group, Inc. splits its revenue 2 ways in its filings. By operating segments, the largest line in Q3 of fiscal 2026, the quarter ended Sep 30, 2026 was Commercial Real Estate at $492.0 million, 52% of the total. By sales mix, the largest line in Q3 of fiscal 2026, the quarter ended Sep 30, 2026 was Residential Real Estate at $460.0 million, 48% of the total.

USD in millions. The percent under a figure is the change from the same quarter a year earlier.

Line	TTM Sep 30, 2026	Q3 FY2026 Sep 30, 2026	Q2 FY2026 Jun 30, 2026	Q1 FY2026 Mar 31, 2026	Q4 FY2025 Dec 31, 2025	Q3 FY2025 Sep 30, 2025	Q2 FY2025 Jun 30, 2025	Q1 FY2025 Mar 31, 2025	Q4 FY2024 Dec 31, 2024
Revenue	3,674	952	925	897	900	834	781	732	709
Operating segments
Commercial Real Estate	1,916 share 52.2%	492 +6.7% share 51.7%	481 +7.8% share 52.0%	472 +15.4% share 52.6%	471 share 52.3%	461 share 55.3%	446 share 57.1%	409 share 55.9%	—
Residential Real Estate	1,758 share 47.8%	460 +23.3% share 48.3%	444 +32.5% share 48.0%	425 +31.6% share 47.4%	429 share 47.7%	373 share 44.7%	335 share 42.9%	323 share 44.1%	—
Sales mix
Residential Real Estate	1,758 share 47.8%	460 +23.3% share 48.3%	444 +32.5% share 48.0%	425 +31.6% share 47.4%	429 share 47.7%	373 share 44.7%	335 share 42.9%	323 share 44.1%	—
Co Star	1,338 -2.7% share 36.4%	344 +8.2% share 36.1%	337 +8.7% share 36.4%	331 +8.5% share 36.9%	326 +33.8% share 36.2%	318 share 38.1%	310 share 39.7%	305 share 41.7%	244 share 34.4%
Loop Net	345 +11.9% share 9.4%	89 +12.7% share 9.3%	87 +14.5% share 9.4%	85 +16.4% share 9.5%	84 +21.4% share 9.3%	79 share 9.5%	76 share 9.7%	73 share 10.0%	69 share 9.8%
Product And Service Other	233 +69.0% share 6.3%	59 -7.8% share 6.2%	57 -5.0% share 6.2%	56 +80.6% share 6.2%	61 +69.0% share 6.8%	64 share 7.7%	60 share 7.7%	31 share 4.2%	36 share 5.1%

How these figures are calculated

Quarterly columns are single-quarter amounts. When a 10-Q reports only a year-to-date total, as cash flow statements do, the quarter is that total minus the previous quarter's year-to-date total. The fourth quarter is the annual report's full year minus the first nine months. A column marked YTD is a year-to-date total, shown when the earlier report needed for the single quarter is missing. USD in millions. Each group is a separate split of total revenue, so the groups are not added together. Share of revenue is that line divided by total revenue. The first column adds the latest year-to-date segment amount to the last fiscal year and subtracts the year-ago year-to-date amount. More on our methodology.

Company profile

Industry: Services-Business Services, NEC (SIC 7389)
Listed as: CSGP (Nasdaq)
Fiscal year ends: December 31
Incorporated in: DE
Headquarters: Arlington, VA
SEC filer status: Large accelerated filer
SEC CIK: 1057352
Former names: COSTAR GROUP, INC. (until Oct 28, 2026); COSTAR GROUP INC (until Jun 25, 2019); REALTY INFORMATION GROUP INC (until May 5, 1999)

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Source: SEC EDGAR filings. This is company-reported data, not investment advice.