SIC Industry Description

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—contractorsFire alarm installation—contractors
Cable splicing, electrical—contractorsHighway lighting and electrical signal construction—contractors
Cable television hookup—contractorsIntercommunications equipment installation—contractors
Communications equipment installation—contractorsSound equipment installation—contractors
Electrical repair at site of construction—contractorsTelecommunications equipment installation—contractors
Electrical work—contractorsTelephone and telephone equipment installation—contractors
Electronic control system installation—contractors
Codes Titles Total Marketable US Businesses
1731Electrical Work112,223
173100Electrical work52,037
17310000Electrical work52,037
173101Electric power systems contractors1,173
17310100Electric power systems contractors1,008
17310101Cogeneration specialization17
17310102Computer power conditioning26
17310103Standby or emergency power specialization78
17310104Switchgear and related devices installation44
173102Electronic controls installation2,060
17310200Electronic controls installation893
17310201Computerized controls installation132
17310202Energy management controls886
17310203Environmental system control installation149
173103Communications specialization10,529
17310300Communications specialization1,245
17310301Cable television installation414
17310302Fiber optic cable installation771
17310303Sound equipment specialization5,741
17310304Telephone and telephone equipment installation1,638
17310305Voice, data, and video wiring contractor720
173104Safety and security specialization5,445
17310400Safety and security specialization2,341
17310401Access control systems specialization253
17310402Closed circuit television installation128
17310403Fire detection and burglar alarm systems specialization2,723
173199Electrical work, nec40,979
17319901Banking machine installation and service77
17319902Computer installation479
17319903General electrical contractor39,631
17319904Lighting contractor792