| Item | Obligations |
|---|---|
| National Aeronautics and Space Administration | $339M |
| Department of the Interior | $71.5M |
| Department of Defense | $53.8M |
| Department of Commerce | $40.2M |
| Department of Transportation | $27.1M |
National Aeronautics and Space Administration is KBR Wyle Services's largest federal customer, with $339M obligated (63.8% of the company's federal obligations).