Exhibit 21.1
Subsidiaries of System1, Inc.
| Subsidiary Name | Jurisdiction | |
| S1 Holdco, LLC | Delaware | |
| System1 S1, Inc. | Delaware | |
| Orchid Merger Sub II, LLC | Delaware | |
| System1 OpCo, LLC | Delaware | |
| Protected.net Group Limited | England & Wales | |
| Infospace Holdings LLC | Delaware | |
| Qool Media Holdings, LLC | Delaware | |
| Concourse Media Holdings, LLC | Delaware | |
| Dotzup Holdings LLC | Delaware | |
| System1 Canada ULC | Nova Scotia | |
| System1 Media ULC | Nova Scotia | |
| MapQuest Holdings, LLC | Delaware | |
| MapQuest Services Holdings LLC | Delaware | |
| System1 Waterfox Holdings LLC | Delaware | |
| Waterfox Limited | England & Wales | |
| NextGen Shopping, LLC | Delaware | |
| Privacy One Group Limited | Delaware | |
| Surfboard Holding B.V. | Netherlands | |
| Network Protect Limited | England & Wales | |
| Network Protect LLC | Delaware | |
| Protected Antivirus Limited | England & Wales | |
| TotalAV Antivirus Limited | England & Wales | |
| Scanguard Antivirus Limited | England & Wales | |
| PC Protect Antivirus Limited | England & Wales | |
| Protected.net LLC | Delaware | |
| CyberSecurity Service LLC | Delaware | |
| Host Plus Limited | England & Wales |
