| Item | Obligations |
|---|---|
| Administrative Management and General Management Consulting Services | $94.2M |
| Computer Systems Design Services | $56M |
| Custom Computer Programming Services | $31.9M |
| Other Computer Related Services | $27.8M |
| Engineering Services | $22.4M |
| Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) | $8M |
| Testing Laboratories and Services | $6.7M |
| All Other Professional, Scientific, and Technical Services | $5.8M |
| Landscape Architectural Services | $5.6M |
| Environmental Consulting Services | $5.3M |
Administrative Management and General Management Consulting Services is Icf Incorporated L L C's largest federal market, with $94.2M in obligations.