| Item | Obligations |
|---|---|
| Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) | $5B |
| Medicinal and Botanical Manufacturing | $4B |
| Power Boiler and Heat Exchanger Manufacturing | $2.2B |
| Aircraft Manufacturing | $2B |
| Drugs and Druggists' Sundries Merchant Wholesalers | $2B |
| Military Armored Vehicle, Tank, and Tank Component Manufacturing | $1.5B |
| Direct Health and Medical Insurance Carriers | $667M |
| Engineering Services | $509M |
| Ammunition (except Small Arms) Manufacturing | $458M |
| Other Computer Related Services | $339M |
Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) was the largest industry in Pennsylvania, with $5B obligated.