Hydro One Ltd
Hydro One Ltd is number 1057 in the 311 Titans Index of the world's largest companies, with reported revenue of about $6.5bn in 2025. It is headquartered in Toronto, Canada.
Part of the 311 Titans Index (311institute.com). Last updated .
Other Titans in Canada
- BROOKFIELD Corp (#101)
- Magna International (#192)
- Cenovus Energy Inc. (#225)
- Canadian Natural Resources Ltd (#292)
- Nutrien Ltd. (#302)
- Barrick Mining Corp (#470)
- Telus Corp (#535)
- Alberta Health Services (#568)
- Celestica (#630)
- Shopify (#667)
- lululemon athletica Inc. (#687)
- TC Energy Corp (#700)
- Bausch Health Companies Inc. (#734)
- MasterCard Foundation (#756)
- Waste Connections (#779)
- Restaurant Brands International Limited Partnership (#780)
- Fortis Inc. (#832)
- TFI International Inc. (#901)
- Thomson Reuters Corp (#936)
- Kinross Gold Corp (#983)
- Emera Inc (#1089)
- BRP Inc. (#1111)
- Pembina Pipeline Corp (#1172)
- Canadian Solar Inc. (#1174)
- Colliers International (#1175)
- West Fraser Timber Co., Ltd (#1194)
- FirstService Corp. (#1197)
- Open Text Corporation (#1254)
- Bausch & Lomb Corp. (#1255)
- Gildan Activewear Inc. (#1567)
Related
Questions and answers
How big is Hydro One Ltd?
Hydro One Ltd reported revenue of about $6.5bn in 2025, ranking number 1057 in the 311 Titans Index.
Where is Hydro One Ltd headquartered?
Hydro One Ltd is headquartered in Toronto, Canada.
Source: official filing (filing), retrieved 5 October 2026. Revenue converted to US dollars at the ECB average rate for the financial year.
© 311 Institute 2026. Facts from official filings, Wikidata (CC0) and the sources linked on this page. The selection, classification and links are the proprietary work of the 311 Institute, protected by copyright and database rights.