Standard Industrial Code Divisions

Major Group: 49—Electric, Gas, And Sanitary Services

This major group includes establishments engaged in the generation, transmission, and/or distribution of electricity or gas or steam. Such establishments may be combinations of any of the above three services and also include other types of services, such as transportation, communications, and refrigeration. Water and irrigation systems, and sanitary systems engaged in the collection and disposal of garbage, sewage, and other wastes by means of destroying or processing materials, are also included. If one service of a combination system does not constitute 95 percent or more of revenues, the establishment should be classified as a combination in Industry Group 493, with the subgroup being determined by the major service supplied.

Codes Titles Total Marketable US Businesses
Industry Group 491: Electric Services
4911Electric Services25,077
Industry Group 492: Gas Production And Distribution
4922Natural Gas Transmission1,737
4923Natural Gas Transmission and Distribution471
4924Natural Gas Distribution2,405
4925Mixed, Manufactured, or Liquefied Petroleum Gas Production and/or447
Industry Group 493: Combination Electric And Gas, And Other Utility Services
4931Electric and Other Services Combined931
4932Gas and Other Services Combined332
4939Combination Utilities, Not Elsewhere Classified798
Industry Group 494: Water Supply
4941Water Supply11,137
Industry Group 495: Sanitary Services
4952Sewerage Systems2,041
4953Refuse Systems27,939
4959Sanitary Services, Not Elsewhere Classified5,483
Industry Group 496: Steam And Air-conditioning Supply
4961Steam and Air-Conditioning Supply305
Industry Group 497: Irrigation Systems
4971Irrigation Systems4,974