| Code |
Description |
| 236220 |
Commercial and Institutional Building Construction |
| 238210 |
Electrical Contractors and other Wiring Installation Contractors |
| 334290 |
Other Communications Equipment Manufacturing |
| 517911 |
Telecommunications Resellers |
| 541330 |
Engineering Services |
| 541360 |
Geophysical Surveying and Mapping Services |
| 541370 |
Surveying and Mapping (except Geophysical) Services |
| 541511 |
Custom Computer Programming Services |
| 541512 |
Computer Systems Design Services |
| 541513 |
Computer Facilities Management Services |
| 541519 |
Other Computer Related Services |
| 541611 |
Administrative Management and General Management Consulting Services |
| 541614 |
Process, Physical Distribution, and Logistics Consulting Services |
| 541618 |
Other Management Consulting Services |
| 541690 |
Other Scientific and Technical Consulting Services |
| 541990 |
All Other Professional, Scientific, and Technical Services |
| 561110 |
Office Administrative Services |
| 561210 |
Facilities Support Services |
| 561621 |
Security Systems Services (Except Locksmiths) |
| 611420 |
Computer Training |
| 611699 |
All Other Miscellaneous Schools and Instruction |
| 811212 |
Computer and Office Machine Repair and Maintenance |
| 811213 |
Communication Equipment Repair and Maintenance |
