| Item | Obligations |
|---|---|
| Aircraft Engine and Engine Parts Manufacturing | $746M |
| Other Support Activities for Air Transportation | $34.6M |
| Aircraft Manufacturing | $26.4M |
| All Other Miscellaneous Fabricated Metal Product Manufacturing | $11.2M |
| Engineering Services | $4.2M |
| Other Aircraft Parts and Auxiliary Equipment Manufacturing | $3.7M |
| Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) | $2M |
| Fabricated Pipe and Pipe Fitting Manufacturing | $918K |
| Other Engine Equipment Manufacturing | $860K |
| Other Technical and Trade Schools | $111K |
Aircraft Engine and Engine Parts Manufacturing is Rolls Royce's largest federal market, with $746M in obligations.