NAICS Code Description

221 - Utilities

Top Businesses by Annual Sales for 221 – Click for Complete Profiles:

Exelon CorporationPacific Gas and Electric Co
NRG Energy IncConstellation Energy Corp
Berkshire Hathaway Energy CoConstlltion Enrgy Gnration LLC
Duke Energy CorporationPG&e Corporation
Southern CompanyNextera Energy Inc

Industries in the Utilities subsector provide electric power, natural gas, steam supply, water supply, and sewage removal through a permanent infrastructure of lines, mains, and pipes. Establishments are grouped together based on the utility service provided and the particular system or facilities required to perform the service.

NAICS Codes that fall under 221 - Utilities