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 TitlesTotal Marketable US Businesses
1731Electrical Work116,484
173100Electrical work28,285
17310000Electrical work28,285
173101Electric power systems contractors1,231
17310100Electric power systems contractors1,048
17310101Cogeneration specialization19
17310102Computer power conditioning31
17310103Standby or emergency power specialization85
17310104Switchgear and related devices installation48
173102Electronic controls installation2,148
17310200Electronic controls installation907
17310201Computerized controls installation153
17310202Energy management controls925
17310203Environmental system control installation163
173103Communications specialization10,643
17310300Communications specialization1,159
17310301Cable television installation458
17310302Fiber optic cable installation895
17310303Sound equipment specialization5,478
17310304Telephone and telephone equipment installation1,932
17310305Voice, data, and video wiring contractor721
173104Safety and security specialization6,452
17310400Safety and security specialization3,275
17310401Access control systems specialization267
17310402Closed circuit television installation132
17310403Fire detection and burglar alarm systems specialization2,778
173199Electrical work, nec67,725
17319901Banking machine installation and service89
17319902Computer installation701
17319903General electrical contractor66,091
17319904Lighting contractor844