| Title | wholly-owned subsidiary |
| Start Date | 2021-05-07 |
| Is Current | yes |
| Percent Stake | 100% |
| Notes | On May 7, 2021, Leidos Holding, Inc. announced the completed acquisition of Gibbs & Cox, Inc ($380M USD). G&C now operates as a wholly-owned subsidiary and has combined with Leidos’ maritime systems division. |