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 Work117,114
173100Electrical work46,286
17310000Electrical work46,286
173101Electric power systems contractors1,276
17310100Electric power systems contractors1,095
17310101Cogeneration specialization19
17310102Computer power conditioning28
17310103Standby or emergency power specialization86
17310104Switchgear and related devices installation48
173102Electronic controls installation2,170
17310200Electronic controls installation922
17310201Computerized controls installation148
17310202Energy management controls945
17310203Environmental system control installation155
173103Communications specialization10,842
17310300Communications specialization1,278
17310301Cable television installation446
17310302Fiber optic cable installation832
17310303Sound equipment specialization5,776
17310304Telephone and telephone equipment installation1,759
17310305Voice, data, and video wiring contractor751
173104Safety and security specialization6,170
17310400Safety and security specialization2,873
17310401Access control systems specialization263
17310402Closed circuit television installation134
17310403Fire detection and burglar alarm systems specialization2,900
173199Electrical work, nec50,370
17319901Banking machine installation and service83
17319902Computer installation531
17319903General electrical contractor48,913
17319904Lighting contractor843