| | | | | |
| Entity | Jurisdiction |
| Agents' Mutual Limited | United Kingdom |
| AM Tempco Limited | United Kingdom |
| BIH | France |
| Comreal Info | France |
| CoStar Central Place HQ, LLC | Delaware |
| CoStar Espana, S.L. | Spain |
| CoStar Field Research, LLC | Delaware |
| CoStar International, LLC | Delaware |
| CoStar Italy S.r.l. | Italy |
| CoStar Realty Information Canada Ltd. | British Columbia |
| CoStar Realty Information, Inc. | Delaware |
| CoStar UK Limited | United Kingdom |
| Cozy Insurance Services, LLC | Florida |
| Cozy Services, LLC | Delaware |
| Glanty LTD | United Kingdom |
| Grecam S.A.S. | France |
| Homes Media Solutions, LLC | Virginia |
| Homes.com, LLC | Delaware |
| Homesnap, LLC | Delaware |
| OnTheMarket LTD | United Kingdom |
| STR Australia Pty Ltd. | Australia |
| STR Benchmarking Indonesia | Indonesia |
| STR Benchmarking Solutions (Beijing) Co., Ltd | PRC |
| STR Columbia SAS | Columbia |
| STR Germany GmbH | Germany |
| STR Global Singapore Private Limited | Singapore |
| STR Japan GK (STR Japan Limited) | Japan |
| STR, LLC | Delaware |
| Ten-X, Inc. | Delaware |
| Ten-X, Inc. | Connecticut |
| Ten-X, LLC | Delaware |
| The Screening Pros, LLC | California |
| Thomas Daily GmbH | Germany |
| Virginia Property Holdings II, LLC | Delaware |
| Visual Lease, LLC | Delaware |