CoStar Group

American technology company
Organization business Q16988748
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CoStar Group is a business [1][2] founded in 1987 [3][4] with its headquarters in Washington, D.C. [1][5][3][6][7] Organized as a Delaware corporation [2], it operates in the information technology sector, specializing in services for the real estate industry, including residential and commercial property [6][3][8][4].

The company provides data, analytics, and market information for real estate professionals, covering both residential and commercial property segments [6][3][8][4]. CoStar Group’s legal structure as a Delaware corporation [2] supports its operations across these industries. Its founding in 1987 [3][4] established its presence in the U.S. market.

Financials

Self-reported XBRL data from 17 annual filings
Revenue
$3.25B
▲ 18.7% YoY FY2025
Net Income
$7.00M
▼ 95.0% YoY FY2025
Assets
$10.54B
▲ 13.8% YoY FY2025
EPS (diluted)
$0.02
▼ 94.1% YoY FY2025
$0.00$892.93M$1.79B$2.68B$3.57B FY2009: $209.66M · NI $18.69M (8.9% margin)FY2010: $226.26M · NI $13.29M (5.9% margin)FY2011: $251.74M · NI $14.66M (5.8% margin)FY2012: $349.94M · NI $9.91M (2.8% margin)FY2013: $440.94M · NI $29.73M (6.7% margin)FY2014: $575.94M · NI $44.87M (7.8% margin)FY2015: $711.76M · NI -$3.46M (-0.5% margin)FY2016: $837.63M · NI $85.07M (10.2% margin)FY2017: $965.23M · NI $122.69M (12.7% margin)FY2018: $1.19B · NI $238.33M (20.0% margin)FY2019: $1.40B · NI $314.96M (22.5% margin)FY2020: $1.66B · NI $227.13M (13.7% margin)FY2021: $1.94B · NI $292.60M (15.1% margin)FY2022: $2.18B · NI $369.50M (16.9% margin)FY2023: $2.46B · NI $375.00M (15.3% margin)FY2024: $2.74B · NI $139.00M (5.1% margin)FY2025: $3.25B · NI $7.00M (0.2% margin) '09'11'13'15'17'19'21'23'25
Revenue Net Income
Source: SEC EDGAR · latest 10-K filed 2025-12-31 · accession 0001057352-26-000020

CoStar Group

Summary

CoStar Group is a business[1]. It ranks in the top 3% of business entities by monthly Wikipedia readership (209 views/month).[2]

Key Facts

  • CoStar Group is in the country of United States[3].
  • CoStar Group's instance of is recorded as business[4].
  • CoStar Group's instance of is recorded as public company[5].
  • CoStar Group's founder is recorded as Andy Florance[6].
  • CoStar Group is owned by Andy Florance[7].
  • CoStar Group's headquarters location is recorded as Arlington County[8].
  • CoStar Group's chief executive officer is recorded as Andy Florance[9].
  • CoStar Group's child organization or unit is recorded as LoopNet[10].
  • CoStar Group's child organization or unit is recorded as STR, Inc.[11].
  • CoStar Group's child organization or unit is recorded as Apartments.com[12].
  • CoStar Group's child organization or unit is recorded as Homes.com[13].
  • CoStar Group's child organization or unit is recorded as OnTheMarket[14].
  • CoStar Group's child organization or unit is recorded as Domain Group[15].
  • CoStar Group is part of S&P 500[16].
  • CoStar Group's stock exchange is recorded as Nasdaq[17].
  • CoStar Group's review score is recorded as 2.9 / 5[18].
  • CoStar Group's industry is recorded as information technology[19].
  • CoStar Group's industry is recorded as real estate industry[20].
  • CoStar Group's industry is recorded as residential property[21].
  • CoStar Group's industry is recorded as commercial property[22].
  • 1987 marks the founding of CoStar Group[23].
  • CoStar Group's official website is recorded as https://www.costargroup.com/[24].
  • CoStar Group's official name is recorded as {'lang': 'en', 'text': 'CoStar Group, Inc.'}[25].
  • CoStar Group's legal form is recorded as Delaware corporation[26].
  • CoStar Group's social media followers is recorded as {'amount': '+46500'}[27].

Body

Founding

CoStar Group's founder is recorded as Andy Florance[6]. 1987 marks the founding of it[23].

Identity

CoStar Group's official name is recorded as {'lang': 'en', 'text': 'it, Inc.'}[25]. It is part of S&P 500[16].

Leadership

CoStar Group's chief executive officer is recorded as Andy Florance[9].

Operations

CoStar Group's headquarters location is recorded as Arlington County[8]. Subsidiaries include LoopNet[10], a business[28], in United States[29], founded in 1995[30], headquartered in San Francisco[31]; STR, Inc.[11], a business[32], in United States[33], founded in 1985[34], headquartered in Hendersonville[35]; Apartments.com[12], a website[36]; Homes.com[13], a business[37], in United States[38], headquartered in Q49231[39]; OnTheMarket[14], a business[40], headquartered in London[41]; and Domain Group[15], a business[42], in Australia[43], founded in 1999[44], headquartered in Sydney[45].

Industry

Industries include information technology[19], real estate industry[20], residential property[21], and commercial property[22].

Ownership

CoStar Group is owned by Andy Florance[7]. Its stock exchange is recorded as Nasdaq[17].

Why It Matters

CoStar Group ranks in the top 3% of business entities by monthly Wikipedia readership (209 views/month).[2] It has Wikipedia articles in 6 language editions, a strong signal of global cultural recognition.[46]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] . EDGAR. Retrieved . wikidata.org.
  2. [4] . EDGAR. Retrieved . wikidata.org.
  3. [5] . Thomson Reuters Open Perm ID. Retrieved . wikidata.org.
  4. [6] . wikidata.org.
  5. [7] . wikidata.org.
  6. [8] . wikidata.org.
  7. [9] . wikidata.org.
  8. [10] . Washington Business Journal. Retrieved . bizjournals.com. Provenance: wikidata.org.
  9. [11] . lodgingmagazine.com. Retrieved . lodgingmagazine.com. Provenance: wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . wikidata.org.
  14. [16] . yahoo.com. Retrieved . yahoo.com. Provenance: wikidata.org.
  15. [17] . Polygon.io. Retrieved . wikidata.org.
  16. [18] . Trustpilot. Retrieved . trustpilot.com. Provenance: wikidata.org.
  17. [19] . Thomson Reuters Open Perm ID. Retrieved . wikidata.org.
  18. [20] . Crunchbase. Retrieved . bizjournals.com. Provenance: wikidata.org.
  19. [21] . wikidata.org.
  20. [22] . wikidata.org.
  21. [23] . Crunchbase. Retrieved . costargroup.com. Provenance: wikidata.org.
  22. [24] . Thomson Reuters Open Perm ID. Retrieved . wikidata.org.
  23. [25] . EDGAR. Retrieved . dnb.com. Provenance: wikidata.org.
  24. [26] . OpenCorporates. Retrieved . wikidata.org.
  25. [27] . wikidata.org.

Inline context (facts about related entities)

  1. [28] . Wikidata. wikidata.org. → on this site
  2. [29] . Wikidata. wikidata.org. → on this site
  3. [30] . Wikidata. wikidata.org. → on this site
  4. [31] . Wikidata. wikidata.org. → on this site
  5. [32] . Wikidata. wikidata.org. → on this site
  6. [33] . Wikidata. wikidata.org. → on this site
  7. [34] . Wikidata. wikidata.org. → on this site
  8. [35] . Wikidata. wikidata.org. → on this site
  9. [36] . Wikidata. wikidata.org. → on this site
  10. [37] . Wikidata. wikidata.org. → on this site
  11. [38] . Wikidata. wikidata.org. → on this site
  12. [39] . Wikidata. wikidata.org. → on this site
  13. [40] . Wikidata. wikidata.org. → on this site
  14. [41] . Wikidata. wikidata.org. → on this site
  15. [42] . Wikidata. wikidata.org. → on this site
  16. [43] . Wikidata. wikidata.org. → on this site
  17. [44] . Wikidata. wikidata.org. → on this site
  18. [45] . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [46] . Wikidata sitelinks. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). CoStar Group. Retrieved May 5, 2026, from https://4ort.xyz/entity/costar-group
MLA “CoStar Group.” 4ort.xyz Knowledge Graph, 4ort.xyz, 5 May. 2026, https://4ort.xyz/entity/costar-group.
BibTeX @misc{4ortxyz_costar-group_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{CoStar Group}}, year = {2026}, url = {https://4ort.xyz/entity/costar-group}, note = {Accessed: 2026-05-05}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): CoStar Group — https://4ort.xyz/entity/costar-group (retrieved 2026-05-05)

Canonical URL: https://4ort.xyz/entity/costar-group · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 9d ago · Dcflyer · 2026-05-14 view diff on Wikidata ↗
    Sam id HMJLN75ES426
    Logo image CoStar Group (53819751837).jpg
    Wikidata description American technology company
    "/* wbsetclaim-create:1||1 */ [[Property:P9955]]: HMJLN75ES426, Matched to [[:toollabs:mix-n-match/#/entry/229498710|Costar Realty Information, Inc. (#229498710)]] in [[:toollabs:mix-n-match/#/catalog/"
  2. 17d ago · TheImaCow · 2026-05-05 view diff on Wikidata ↗
    Wolfram language entity code Entity["Company", "CoStarGroup::v54kz"]
    Founder Andy Florance
    Crunchbase organization id
    Headquarters location Washington, D.C., Arlington County
    + 104 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:2||1 */ [[Property:P154]]: CoStar_Group_logo.svg"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.