North American
Industry Classification System Codes:
| 236210 | Industrial Building Construction |
| 236220 | Commercial and Institutional Building Construction |
| 541310 | Architectural Services |
| 541330 | Engineering Services |
| 541340 | Drafting Services |
| 541350 | Building Inspection Services |
| 541380 | Testing Laboratories |
| 541512 | Computer Systems Design Services |
| 541611 | Administrative Management and General Management Consulting Services |
| 541620 | Environmental Consulting Services |
| 541690 | Other Scientific and Technical Consulting Services |
| 561320 | Temporary Help Services |
| 561730 | Landscaping Services |
| 562910 | Remediation Services |