On the Record · Costar Group
Costar Group subsidiaries, as it lists them
The subsidiaries Costar Group lists in its latest annual report, with the jurisdiction of each, linked to the filing.
Subsidiaries it lists
| Subsidiary | Jurisdiction |
|---|---|
| AcreValue Brokerage Services, LLC | Delaware |
| Ag-Analytics Technology Company, LLC | Delaware |
| Agents’ Mutual Limited | United Kingdom |
| All Homes Pty Limited | Australia |
| Alldata Australia Pty Ltd | Australia |
| AM Tempco Limited | United Kingdom |
| Andromeda Australia TopCo Pty Limited | Australia |
| Australian Property Monitors Pty Limited | Australia |
| Bidtracker (VIC) Pty Ltd | Australia |
| Bidtracker Holdings Pty Ltd | Australia |
| BIH | France |
| Campaigntrack Pty Ltd | Australia |
| Commercial Real Estate Holdings Pty Limited | Australia |
| Commercial Real Estate Media Nominees Pty Limited | Australia |
| Commercial Real Estate Media Pty Limited | Australia |
| Commercialview.com.au Pty Limited | Australia |
| Comreal Info | France |
| CoStar Central Place HQ, LLC | Delaware |
| CoStar Espana, S.L. | Spain |
| CoStar Field Research, LLC | Delaware |
| CoStar Group, Inc. | Delaware |
| CoStar International, LLC | Delaware |
| CoStar Italy S.r.l. | Italy |
| CoStar Realty Information Canada Ltd. | British Columbia |
| CoStar Realty Information, Inc. | Delaware |
| CoStar Realty LLC | Delaware |
| CoStar UK Limited | United Kingdom |
| CoStar UK Limited Dubai Branch | United Kingdom |
| Cozy Insurance Services, LLC | Florida |
| Cozy Services, LLC | Delaware |
| Domain Group Finance Pty Limited | Australia |
| Domain Group New Zealand Limited | New Zealand |
| Domain Group Philippines, Inc. | Philippines |
| Domain Holdings Australia Pty Limited | Australia |
| Domain Operations Pty Limited | Australia |
| Domain SubCo Pty Limited | Australia |
| Homepass Australia Pty Ltd | Australia |
| Homepass Pty Ltd | Australia |
| Homes Media Solutions, LLC | Virginia |
| Homes.com, LLC | Delaware |
| Homesnap, LLC | Delaware |
| IDS Gov Services Pty. Ltd. | Australia |
| Insight Data Solutions Holdings Pty. Ltd. | Australia |
| Insight Data Solutions Pty Ltd | Australia |
| MarketNow Payments Pty Ltd | Australia |
| Matterport B.V. | Netherlands |
| Matterport Japan K.K. | Japan |
| Matterport Pte. Ltd | Singapore |
| Matterport Sales UK Ltd. | United Kingdom |
| Matterport, LLC | Delaware |
| Metro Media Publishing Pty Ltd | Australia |
| Metro Media Services Pty Ltd | Australia |
| MMP (DVH) Pty Ltd | Australia |
| MMP (Melbourne Times) Pty Ltd | Australia |
| MMP Bayside Pty Ltd | Australia |
| MMP Eastern Pty Ltd | Australia |
| MMP Greater Geelong Pty Ltd | Australia |
| MMP Holdings Pty Ltd | Australia |
| MMP Moonee Valley Pty Ltd | Australia |
| National Real Estate Media Nominees Pty Limited | Australia |
| National Real Estate Media Pty Limited | Australia |
| New South Wales Real Estate Media Pty Limited | Australia |
| Northern Territory Real Estate Media Pty Limited | Australia |
| OnTheMarket LTD | United Kingdom |
| Property Data Solutions (2) Pty Ltd | Australia |
| Property Data Solutions Pty Ltd | Australia |
| Queensland Real Estate Media Pty Limited | Australia |
| Realbase Pty Ltd | Australia |
| Realhub Services Pty Ltd | Australia |
| Realhub Studios Pty Ltd | Australia |
| Realhub Systems Pty Ltd | Australia |
| Review Property Pty Ltd | Australia |
| South Australia Real Estate Media Pty Limited | Australia |
| STR Australia Pty Ltd. | Australia |
| STR Benchmarking Indonesia | Indonesia |
| STR Benchmarking Solutions (Beijing) Co., Ltd | PRC |
| STR Colombia SAS | Colombia |
| STR Germany GmbH | Germany |
| STR Global Singapore Private Limited | Singapore |
| STR Japan GK | Japan |
| STR, LLC | Delaware |
| Tasmania Real Estate Media Pty Limited | Australia |
| Ten-X, Inc. | Delaware |
| Ten-X, Inc. | Connecticut |
| Ten-X, LLC | Delaware |
| The Screening Pros, LLC | California |
| Thomas Daily GmbH | Germany |
| VHT, LLC | Delaware |
| Virginia Property Holdings II, LLC | Delaware |
| Visual Lease, LLC | Delaware |
| Western Australia Real Estate Media Pty Limited | Australia |
| Workstream Technologies Pty Ltd | Australia |
From Exhibit 21 of the 10-K for 2025. Companies must list their significant subsidiaries there and may leave out smaller ones, so this is the company’s own list, not every entity it owns.
Read from Costar Group’s annual reports (10-K for 2025, 10-K for 2024, 10-K for 2023) and the financial data it files with the SEC, as of 2026-02-26. Every quotation is word for word from the filing linked beside it; how these pages are built and checked. The full record is in its company data sheet.