The utilities of Seattle are provided by two government owned, and five privately owned, public utilities. The public utilities are Seattle Public Utilities (SPU) for the water supply and waste management, and Seattle City Light for electricity. The private companies are Puget Sound Energy for natural gas; CenTrio Seattle for district heating; CenturyLink for telephone service, DSL and FTTH; and Comcast and Wave Broadband for cable television and cable internet.

Seattle Public Utilities (SPU) is a public utility agency of the city of Seattle, Washington, which provides water, sewer, drainage and garbage services for 1.3 million people in King County, Washington. The agency was established in 1997, consolidating the city's Water Department with other city functions.