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 Work113,338
173100Electrical work52,260
17310000Electrical work52,260
173101Electric power systems contractors1,189
17310100Electric power systems contractors1,017
17310101Cogeneration specialization19
17310102Computer power conditioning27
17310103Standby or emergency power specialization82
17310104Switchgear and related devices installation44
173102Electronic controls installation2,102
17310200Electronic controls installation916
17310201Computerized controls installation133
17310202Energy management controls902
17310203Environmental system control installation151
173103Communications specialization10,875
17310300Communications specialization1,309
17310301Cable television installation435
17310302Fiber optic cable installation785
17310303Sound equipment specialization5,929
17310304Telephone and telephone equipment installation1,678
17310305Voice, data, and video wiring contractor739
173104Safety and security specialization4,982
17310400Safety and security specialization1,810
17310401Access control systems specialization258
17310402Closed circuit television installation131
17310403Fire detection and burglar alarm systems specialization2,783
173199Electrical work, nec41,930
17319901Banking machine installation and service88
17319902Computer installation478
17319903General electrical contractor40,554
17319904Lighting contractor810