| SIC | Description
|
| 871 | Engineering & Architectural Services |
8711 | Engineering services |
8712 | Architectural services |
8713 | Surveying services |
872 | Accounting, Auditing, & Bookkeeping |
8721 | Accounting, auditing, & bookkeeping |
873 | Research and Testing Services |
8731 | Commercial physical research |
8732 | Commercial nonphysical research |
8733 | Noncommercial research organizations |
8734 | Testing laboratories |
874 | Management and Public Relations |
8741 | Management services |
8742 | Management consulting services |
8743 | Public relations services |
8744 | Facilities support services |
8748 | Business consulting, nec |