Below is a list of all utilities operating in Ontario. Links to their websites and social media accounts 
have been included where available.
For a map of Ontario's local distribution companies, click the image to the right or visit the Ontario Electricity Map.
|
Local Distribution Company |
Service Area |
Social Media |
|
(Formerly Enersource Hydro, Horizon Utilities, Hydro One Brampton, and PowerStream) |
Mississauga, Hamilton and St. Catharines, Brampton, Alliston, Aurora, Barrie, Beeton, Bradford West Gwillimbury, Penetanguishene, Markham, Richmond Hill, Thornton, Tottenham and Vaughan |
  |
|
|
Algoma |
  |
|
Atikokan |
||
|
Attawapiskat First Nation |
||
|
Sarnia, Point Edward, Petrolia, Alvinston, Oil Springs and Watford |
|
|
|
Brantford |
||
|
Burlington |
|
|
|
Fort Erie and Port Colborne |
|
|
|
Elora and Fergus |
||
|
Chapleau Township |
|
|
|
Collingwood, Stayner, Creemore and Thornbury |
|
|
|
Embrun |
|
|
|
Cornwall, South Glengarry, South Stormont, and the Ontario portion of the Mohawk Territory of Akwesasne |
|
|
|
Essex, Harrow, Belle River, Comber, Kingsville and Cottham |
||
|
Cambridge, North Dumfries, Brant |
|
|
|
Parkhill, Strathroy, Mount Brydges, Newbury, Dutton, Wallaceburg, Dresden, Bothwell, Thamesville, Ridgetown, Chatham-Kent, Blenheim, Merlin, Tilbury, Wheatley, Erieau |
|
|
|
Windsor |
|
|
|
Aylmer, Belmont, Burgessville, Beachville, Clinton, Embro, Ingersoll, Otterville, Port Stanley, Norwich, Tavistock and Thamesford, West Perth |
|
|
|
Espanola, Webbwood and Massey |
||
|
Amherstburg, LaSalle, Leamington and Tecumseh |
|
|
|
Stratford, St. Mary's, Seaforth, Hensall, Brussels, Zurich and Dashwood |
||
|
Fort Albany First Nation |
||
|
Fort Frances |
|
|
|
Greater Sudbury and the Municipality of West Nipissing |
|
|
|
Grimsby |
||
|
Guelph and Rockwood |
|
|
|
Halton Hills |
|
|
|
Hearst |
||
|
Alfred and Village of Plantagenet |
|
|
|
Hawkesbury |
||
|
Most of rural Ontario, including Norfolk, Cat Lake Community and Haldimand County |
|
|
|
19 Communities not connected to the grid |
||
|
Ottawa and Casselman |
|
|
|
Innisfil and South Barrie |
|
|
|
Kashechewan First Nation |
||
|
Kenora Hydro Electric Corporation Ltd. |
Kenora |
|
|
Kingston |
|
|
|
Kitchener and Wilmot |
|
|
|
Cobourg |
|
|
|
Bracebridge, Burk's Falls, Huntsville, Magnetawan and Sundridge |
|
|
|
London |
|
|
|
Midland |
||
|
Milton |
|
|
|
Newmarket, Tay Township and Perth County |
|
|
|
Niagara-on-the-Lake, Virgil, Glendale, St. Davids and Queenston |
|
|
|
Niagara Falls, Lincoln, Pelham and West Lincoln |
|
|
|
North Bay |
|
|
|
Cochrane, Iroquois Falls and Kapuskasing |
||
|
Oakville |
|
|
|
Orangeville and Grand Valley |
||
|
Orillia |
||
|
Oshawa |
|
|
|
Almonte, Beachburg, Killaloe and Pembroke |
|
|
|
Peterborough, Lakefield and Norwood |
|
|
|
Sault Ste. Marie |
|
|
|
Renfrew |
|
|
|
Westport, Prescott, Cardinal, Iroquois, Morrisburg and Williamsburg |
||
|
Sioux Lookout and Hudson |
||
|
St. Thomas |
|
|
|
Thunder Bay |
|
|
|
Tillsonburg |
||
|
Toronto |
|
|
|
Ajax, Beaverton, Belleville, Bowmanville, Cannington, Gravenhurst, Newcastle, Orono, Pickering, Port Hope, Port Perry, Sunderland and Uxbridge |
|
|
|
Wasaga Beach |
||
|
Waterloo, Township of Woolwich and Township of Wellesley |
|
|
|
Welland |
|
|
|
Holstein, Mount Forest and Arthur |
|
|
|
Goderich |
||
|
Hanover, Huron-Kinloss, Kincardine, Saugeen Shores, South Bruce, Wingham, Brockton and Minto |
||
|
Whitby, Brooklin and Ashburn |
|