| Item | Obligations |
|---|---|
| Department of Defense | $376M |
| Department of Homeland Security | $103M |
| General Services Administration | $33.5M |
| Department of Justice | $25.6M |
| Department of Energy | $24.5M |
| Department of Commerce | $7.3M |
| National Aeronautics and Space Administration | $696K |
| Department of Health and Human Services | $190K |
| Smithsonian Institution | $111K |
| Department of Transportation | $5K |
Department of Defense is Amazon Web Services's largest federal customer, with $376M obligated (65.9% of the company's federal obligations).