| NAICS Code | Title | Small Business |
| 541714 | Research and Development in Biotechnology | ✓ |
| 541715 | Research and Development in the Physical, Engineering, and Life Sciences | ✓ |
| 562910 | Environmental Remediation Services | ✓ |
| 561210 | Facilities Support Services | ✓ |
| | | |
| 541990 | All Other Professional, Scientific, and Technical Services | |
| 541330 | Engineering Services | |
| 541380 | Testing Laboratories | |
| 541611 | Administrative Management and General Management Consulting Services | |
| 541618 | Other Management Consulting Services | |
| 541619 | Other Scientific and Technical Consulting Services | |
| 541620 | Environmental Consulting Services | |
| 541690 | Other Scientific and Technical Consulting Services | |
| 488490 | Other Support Activities for Road Transportation | |
| 488999 | All Other Support Activities for Transportation | |
