| CODE |
DESCRIPTION |
| 221330 |
Stream and Air-Conditioning
Supply |
| 237110 |
Water and Sewer Line
Related Structures Construction |
| 237130 |
Power and Communication
Line and Related Structures Construction (Primary NAICS Code) |
| 238210 |
Electrical Contractors and
Other Wiring Installation Contractors |
| 238220 |
Plumbing, Heating, and
Air-Conditioning Contractors |
| 517110 |
Wired Telecommunications
Carriers |
| 517210 |
Wireless
Telecommunications Carriers (except Satellite) |
| 517410 |
Satellite
Telecommunication |
| 517919 |
All Other
Telecommunications |
| 541512 |
Computer Systems Design
Services |
| 541513 |
Computer Facilities
Management Services |
| 541519 |
Other Computer Related
Services |
| 541611 |
Administrative Management
and General Management Consulting Services |
| 541690 |
Other Scientific and
Technical Consulting Services |
| 561621 |
Security System Services (except Locksmiths) |
