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; Enwave Seattle for district heating; CenturyLink for telephone service, DSL and FTTH; and Comcast and Wave Broadband for cable television and cable internet.