| Item | Obligations |
|---|---|
| Department of Defense | $1.4B |
| National Aeronautics and Space Administration | $497M |
| Department of Homeland Security | $27.7M |
| Department of Health and Human Services | $10.2M |
| Department of Commerce | $4.2M |
| Department of Transportation | $2.7M |
| Department of State | $1.1M |
| Department of Energy | $472K |
Department of Defense is Johns Hopkins University Applied Physics Laboratory's largest federal customer, with $1.4B obligated (71.8% of the company's federal obligations).