Hydro One Limited, through its subsidiaries, operates as an electrical transmission and distribution company in Ontario. It operates through three segments: Transmission, Distribution, and Other Business. The company owns and operates approximately 123,000 circuit kilometers of low-voltage distribution network. It serves approximately 1.4 million residential, small business, commercial, and industrial customers. The company also provides telecommunications support services for its transmission and distribution businesses; and communications and information technology solutions to organizations for broadband network connectivity. Hydro One Limited was incorporated in 2015 and is headquartered in Toronto, Canada.