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 Work111,721
173100Electrical work56,798
17310000Electrical work56,798
173101Electric power systems contractors1,138
17310100Electric power systems contractors964
17310101Cogeneration specialization19
17310102Computer power conditioning27
17310103Standby or emergency power specialization83
17310104Switchgear and related devices installation45
173102Electronic controls installation2,086
17310200Electronic controls installation902
17310201Computerized controls installation136
17310202Energy management controls899
17310203Environmental system control installation149
173103Communications specialization10,796
17310300Communications specialization1,324
17310301Cable television installation436
17310302Fiber optic cable installation764
17310303Sound equipment specialization5,895
17310304Telephone and telephone equipment installation1,641
17310305Voice, data, and video wiring contractor736
173104Safety and security specialization4,644
17310400Safety and security specialization1,526
17310401Access control systems specialization262
17310402Closed circuit television installation132
17310403Fire detection and burglar alarm systems specialization2,724
173199Electrical work, nec36,259
17319901Banking machine installation and service88
17319902Computer installation473
17319903General electrical contractor34,946
17319904Lighting contractor752