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| 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 |
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