| Item | Obligations |
|---|---|
| Computer Systems Design Services | $1.7B |
| Engineering Services | $1.4B |
| Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) | $731M |
| All Other Professional, Scientific, and Technical Services | $685M |
| Custom Computer Programming Services | $483M |
| Administrative Management and General Management Consulting Services | $303M |
| Human Resources Consulting Services | $139M |
| Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) | $126M |
| Landscape Architectural Services | $53.3M |
| Other Computer Related Services | $25.4M |
Computer Systems Design Services is Booz Allen Hamilton's largest federal market, with $1.7B in obligations.