Industry: 1731—Electrical Work
Special trade contractors primarily engaged in electrical work at the site. The construction of transmission lines is classified in Industry 1623, and electrical work carried on in repair shops is classified in Services, Industry Group 762. Establishments primarily engaged in monitoring of burglar and fire alarms with incidental installation are classified in Services, Industry 7382.
| Burglar alarm installation—contractors | Fire alarm installation—contractors |
| Cable splicing, electrical—contractors | Highway lighting and electrical signal construction—contractors |
| Cable television hookup—contractors | Intercommunications equipment installation—contractors |
| Communications equipment installation—contractors | Sound equipment installation—contractors |
| Electrical repair at site of construction—contractors | Telecommunications equipment installation—contractors |
| Electrical work—contractors | Telephone and telephone equipment installation—contractors |
| Electronic control system installation—contractors | |
| Codes |
Titles | Total Marketable US Businesses |
| 17310000 | Electrical work | 27,426 |
| 17310100 | Electric power systems contractors | 1,122 |
| 17310101 | Cogeneration specialization | 21 |
| 17310102 | Computer power conditioning | 27 |
| 17310103 | Standby or emergency power specialization | 71 |
| 17310104 | Switchgear and related devices installation | 44 |
| 17310200 | Electronic controls installation | 869 |
| 17310201 | Computerized controls installation | 163 |
| 17310202 | Energy management controls | 958 |
| 17310203 | Environmental system control installation | 156 |
| 17310300 | Communications specialization | 1,090 |
| 17310301 | Cable television installation | 420 |
| 17310302 | Fiber optic cable installation | 940 |
| 17310303 | Sound equipment specialization | 4,593 |
| 17310304 | Telephone and telephone equipment installation | 1,918 |
| 17310305 | Voice, data, and video wiring contractor | 684 |
| 17310400 | Safety and security specialization | 3,464 |
| 17310401 | Access control systems specialization | 262 |
| 17310402 | Closed circuit television installation | 129 |
| 17310403 | Fire detection and burglar alarm systems specialization | 2,635 |
| 17319901 | Banking machine installation and service | 87 |
| 17319902 | Computer installation | 684 |
| 17319903 | General electrical contractor | 71,585 |
| 17319904 | Lighting contractor | 824 |
