| | | | | |
| Name | Jurisdiction of Formation |
| Leidos, Inc. | Delaware |
| Leidos Biomedical Research, Inc. | Delaware |
| Leidos Consulting Engineers, Inc. | California |
| Leidos Engineering, LLC | Delaware |
| Leidos Global Technology Corporation | Delaware |
| Leidos Services, Inc. | Delaware |
| Reveal Imaging Technologies, Inc. | Delaware |
| Varec Holdings, Inc. | Delaware |
| Varec, Inc. | Georgia |
| Leidos Intermediate Holdings, Inc. | Delaware |
| Leidos Government Services, Inc. | Maryland |
| Leidos Integrated Technology, LLC | Delaware |
| Hanford Mission Integration Solutions, LLC | Delaware |
| QTC Holdings, Inc. | Delaware |
| QTC Management, Inc. | California |
| QTC Medical Services, Inc. | California |
| Leidos Digital Solutions, Inc. | Virginia |
| Leidos New Zealand Limited | New Zealand |
| Dynetics, Inc. | Alabama |
| Dynetics Technical Solutions, Inc. | Alabama |
| SPIRE Manufacturing Solutions, LLC | Colorado |
| Leidos Security Detection & Automation, Inc. | Delaware |
| 1901 Group, LLC | Virginia |
| Gibbs & Cox, Inc. | New York |
| Leidos Arabia Limited Company | Saudi Arabia |