Brandtree

Hydro One: brands it owns and its ownership tree

Hydro One is a privately held company headquartered in Toronto, Canada that owns 2 consumer brands.[1][2]

Hydro One Inc. is the Ontario electricity transmission and distribution utility, which its 2025 annual information form describes as a wholly owned subsidiary of Hydro One Limited. The AIF says the Province of Ontario is Hydro One Limited's principal shareholder and that Hydro One Limited owns all the issued shares of Hydro One Inc.; it gives about $40 billion of assets and about 1.5 million customers.

Company facts

Legal name
Hydro One Inc. (also Hydro One Limited)
Type
privately held company · see all privately held company owners
Headquarters
🇨🇦 Toronto, Canada
Revenue
C$8.99 billion (2025)[2]
SEC CIK
0001114445
Last verified
· 2 sources

Hydro One in numbers

Hydro One financial history

Headline figures from Hydro One's annual reports filed with the US Securities and Exchange Commission, in CAD as reported, fiscal years ending 2020–2025. Revenue moved from C$7.25bn to C$8.99bn, an average of 4.4% a year (calculated).

Fiscal year endedRevenueOperating incomeOperating marginNet incomeTotal assetsLong-term debtFiling
C$8.99bn C$2.25bn 25.0% — C$39.6bn C$17.7bn 40-F
C$8.45bn C$1.99bn 23.5% — C$36.6bn C$15.9bn 40-F
C$7.8bn C$1.84bn 23.7% — C$32.7bn C$14.3bn 40-F
C$7.74bn C$1.83bn 23.7% — C$31.3bn C$12.6bn 40-F
C$7.18bn C$1.61bn 22.4% C$980m C$30.2bn C$12.6bn 40-F
C$7.25bn C$1.49bn 20.5% C$1.8bn C$30.1bn C$12.3bn 40-F

Source: SEC XBRL company facts. A dash means the company did not report that line in a form we could read. Figures for a year can be restated in a later filing; the latest filing's number is shown.

Everything Hydro One owns

Controlling ownership as of . Brands grouped under the entity that owns them; large groups are collapsed.

Everything Hydro One owns Tree of 2 brands under Hydro One. Hydro One Hydro One Networks Hydro One Remote Communities

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Brand portfolio by category

Energy (2)

Full portfolio, 2 brands, with sources →

Recent changes to this record

All changes →

Hydro One SEC filings

The documents behind the figures on this page, as listed in the SEC's EDGAR index. Each links to the filing itself.

Annual reports

Recent current and quarterly reports

FiledFormWhat it declares
6-KReport of a foreign private issuer
6-KReport of a foreign private issuer
6-KReport of a foreign private issuer
6-KReport of a foreign private issuer
6-KReport of a foreign private issuer
6-KReport of a foreign private issuer
6-KReport of a foreign private issuer
6-KReport of a foreign private issuer

Frequently asked questions

What brands does Hydro One own?

Hydro One owns 2 consumer brands tracked here, including Hydro One Networks and Hydro One Remote Communities.

Is Hydro One a Canadian company?

Yes. Hydro One is headquartered in Toronto, Canada.

Who owns Hydro One?

Hydro One is privately held. Hydro One Inc. is the Ontario electricity transmission and distribution utility, which its 2025 annual information form describes as a wholly owned subsidiary of Hydro One Limited.

Sources (2) & corrections

Last verified . Every ownership fact above is backed by one of these primary documents. Numbers in brackets in the text refer to this list.

  1. [1] Hydro One Inc. Annual Report on Form 40-F filed 2026-02-13 — SEC EDGAR, SEC filing, published 13 February 2026; retrieved 5 October 2026.
  2. [2] Hydro One Inc.: Form 40-F for the year ended 2025-12-31 (revenue) — SEC EDGAR, SEC filing, published 13 February 2026; retrieved 5 October 2026.

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