| 2022-07-19 | usaspending | 75N98022F00001 | DLH, LLC | $61.8M | 0.8 |
| 2021-09-16 | usaspending | 75N96021F00010 | SOCIAL & SCIENTIFIC SYSTE | $6.5M | 0.4 |
| 2021-06-25 | usaspending | 75N96021F00003 | SOCIAL & SCIENTIFIC SYSTE | $3.1M | 0.3 |
| 2021-06-25 | usaspending | 75N96021F00005 | SOCIAL & SCIENTIFIC SYSTE | $3.1M | 0.3 |
| 2021-04-16 | usaspending | 75N92021F00001 | DLH, LLC | $107.3M | 0.8 |
| 2020-08-17 | usaspending | 140D0420F0422 | DLH, LLC | $180.0M | 0.9 |
| 2018-08-22 | usaspending | 75N96018F00001 | SOCIAL & SCIENTIFIC SYSTE | $56.3M | 0.7 |
| 2016-06-30 | usaspending | HHSN27300005 | SOCIAL & SCIENTIFIC SYSTE | $4.0M | 0.4 |
| 2016-06-30 | usaspending | HHSN27300002 | SOCIAL & SCIENTIFIC SYSTE | $4.1M | 0.3 |
| 2016-06-17 | usaspending | HHSN27300004 | SOCIAL & SCIENTIFIC SYSTE | $3.7M | 0.3 |