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 Work116,022
173100Electrical work32,099
17310000Electrical work32,099
173101Electric power systems contractors1,196
17310100Electric power systems contractors1,024
17310101Cogeneration specialization16
17310102Computer power conditioning28
17310103Standby or emergency power specialization80
17310104Switchgear and related devices installation48
173102Electronic controls installation2,097
17310200Electronic controls installation897
17310201Computerized controls installation149
17310202Energy management controls895
17310203Environmental system control installation156
173103Communications specialization10,645
17310300Communications specialization1,156
17310301Cable television installation432
17310302Fiber optic cable installation834
17310303Sound equipment specialization5,597
17310304Telephone and telephone equipment installation1,917
17310305Voice, data, and video wiring contractor709
173104Safety and security specialization6,361
17310400Safety and security specialization3,154
17310401Access control systems specialization260
17310402Closed circuit television installation132
17310403Fire detection and burglar alarm systems specialization2,815
173199Electrical work, nec63,624
17319901Banking machine installation and service77
17319902Computer installation589
17319903General electrical contractor62,135
17319904Lighting contractor823