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 Work117,513
173100Electrical work33,222
17310000Electrical work33,222
173101Electric power systems contractors1,195
17310100Electric power systems contractors1,022
17310101Cogeneration specialization17
17310102Computer power conditioning26
17310103Standby or emergency power specialization81
17310104Switchgear and related devices installation49
173102Electronic controls installation2,101
17310200Electronic controls installation896
17310201Computerized controls installation150
17310202Energy management controls901
17310203Environmental system control installation154
173103Communications specialization10,779
17310300Communications specialization1,157
17310301Cable television installation433
17310302Fiber optic cable installation816
17310303Sound equipment specialization5,756
17310304Telephone and telephone equipment installation1,916
17310305Voice, data, and video wiring contractor701
173104Safety and security specialization6,437
17310400Safety and security specialization3,161
17310401Access control systems specialization258
17310402Closed circuit television installation130
17310403Fire detection and burglar alarm systems specialization2,888
173199Electrical work, nec63,779
17319901Banking machine installation and service76
17319902Computer installation553
17319903General electrical contractor62,325
17319904Lighting contractor825