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 Work115,637
173100Electrical work32,102
17310000Electrical work32,102
173101Electric power systems contractors1,208
17310100Electric power systems contractors1,030
17310101Cogeneration specialization17
17310102Computer power conditioning28
17310103Standby or emergency power specialization84
17310104Switchgear and related devices installation49
173102Electronic controls installation2,100
17310200Electronic controls installation904
17310201Computerized controls installation151
17310202Energy management controls889
17310203Environmental system control installation156
173103Communications specialization10,601
17310300Communications specialization1,157
17310301Cable television installation447
17310302Fiber optic cable installation854
17310303Sound equipment specialization5,531
17310304Telephone and telephone equipment installation1,900
17310305Voice, data, and video wiring contractor712
173104Safety and security specialization6,364
17310400Safety and security specialization3,191
17310401Access control systems specialization266
17310402Closed circuit television installation132
17310403Fire detection and burglar alarm systems specialization2,775
173199Electrical work, nec63,262
17319901Banking machine installation and service80
17319902Computer installation652
17319903General electrical contractor61,704
17319904Lighting contractor826