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