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 Work117,637
173100Electrical work38,504
17310000Electrical work38,504
173101Electric power systems contractors1,228
17310100Electric power systems contractors1,050
17310101Cogeneration specialization18
17310102Computer power conditioning27
17310103Standby or emergency power specialization85
17310104Switchgear and related devices installation48
173102Electronic controls installation2,098
17310200Electronic controls installation886
17310201Computerized controls installation147
17310202Energy management controls912
17310203Environmental system control installation153
173103Communications specialization10,830
17310300Communications specialization1,201
17310301Cable television installation439
17310302Fiber optic cable installation818
17310303Sound equipment specialization5,825
17310304Telephone and telephone equipment installation1,829
17310305Voice, data, and video wiring contractor718
173104Safety and security specialization6,373
17310400Safety and security specialization3,075
17310401Access control systems specialization258
17310402Closed circuit television installation130
17310403Fire detection and burglar alarm systems specialization2,910
173199Electrical work, nec58,604
17319901Banking machine installation and service77
17319902Computer installation543
17319903General electrical contractor57,145
17319904Lighting contractor839