The Toronto-Dominion Bank
TD
Bank of Montreal
BMO
Royal Bank of Canada
RY
Canadian Imperial Bank of Commerce
CM
Bank of Nova Scotia
BNS
Hydro One operates regulated transmission and distribution assets in Ontario. The area's largest electricity provider serves nearly 1.5 million customers. Transmission accounts for roughly 60% of the company's rate base, with distribution accounting for the remainder. Hydro One operates a small telecom business with annual revenue contributing less than 1% to consolidated results. The province of Ontario holds an approximate 47% common equity stake.