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 Work118,444
173100Electrical work54,307
17310000Electrical work54,307
173101Electric power systems contractors1,301
17310100Electric power systems contractors1,113
17310101Cogeneration specialization21
17310102Computer power conditioning29
17310103Standby or emergency power specialization89
17310104Switchgear and related devices installation49
173102Electronic controls installation2,225
17310200Electronic controls installation946
17310201Computerized controls installation145
17310202Energy management controls974
17310203Environmental system control installation160
173103Communications specialization11,207
17310300Communications specialization1,345
17310301Cable television installation469
17310302Fiber optic cable installation828
17310303Sound equipment specialization6,030
17310304Telephone and telephone equipment installation1,767
17310305Voice, data, and video wiring contractor768
173104Safety and security specialization5,339
17310400Safety and security specialization2,046
17310401Access control systems specialization268
17310402Closed circuit television installation133
17310403Fire detection and burglar alarm systems specialization2,892
173199Electrical work, nec44,065
17319901Banking machine installation and service89
17319902Computer installation501
17319903General electrical contractor42,618
17319904Lighting contractor857