Canada

Top 21 largest Canadian Companies in the Utilities sector by Market Cap

This is the list of the largest public listed companies in the Utilities sector from Canada by market capitalization with links to their reference stock and industry.

Canada Utilities Sector Analysis
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Top Utilities Companies from Canada as of Jan. 01, 2026

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Rank Company Market Cap (USD) Country Sector Industry
1 Fortis Inc. $26.27 B Canada Canadian Utilities Canadian Utilities—Regulated Electric
2 Hydro One Limited $23.82 B Canada Canadian Utilities Canadian Utilities—Regulated Electric
3 Emera Incorporated $14.88 B Canada Canadian Utilities Canadian Utilities—Diversified
4 AltaGas Ltd. $9.58 B Canada Canadian Utilities Canadian Utilities—Regulated Gas
5 Canadian Utilities Limited $8.49 B Canada Canadian Utilities Canadian Utilities—Diversified
6 Capital Power Corporation $6.84 B Canada Canadian Utilities Canadian Utilities—Independent Power Producers
7 Algonquin Power & Utilities Corp. $4.72 B Canada Canadian Utilities Canadian Utilities—Renewable
8 ATCO Ltd. $4.72 B Canada Canadian Utilities Canadian Utilities—Diversified
9 TransAlta Corporation $3.86 B Canada Canadian Utilities Canadian Utilities—Independent Power Producers
10 Northland Power Inc. $3.48 B Canada Canadian Utilities Canadian Utilities—Renewable
11 TransAlta Renewables Inc. $2.62 B

(July 1, 2023)

 Canada Canadian Utilities Canadian Utilities—Renewable
12 Innergex Renewable Energy Inc. $2.03 B

(July 1, 2025)

 Canada Canadian Utilities Canadian Utilities—Renewable
13 Boralex Inc. $1.96 B Canada Canadian Utilities Canadian Utilities—Renewable
14 Superior Plus Corp. $1.15 B Canada Canadian Utilities Canadian Utilities—Regulated Gas
15 H2O Innovation, Inc. $215.2 M

(July 1, 2023)

 Canada Canadian Utilities Canadian Utilities—Regulated Water
16 Maxim Power Corp. $206.2 M Canada Canadian Utilities Canadian Utilities—Independent Power Producers
17 Altius Renewable Royalties Corp. $203.5 M

(July 1, 2024)

 Canada Canadian Utilities Canadian Utilities—Renewable
18 Polaris Infrastructure Inc. $187.3 M Canada Canadian Utilities Canadian Utilities—Renewable
19 Green Impact Partners, Inc. $48.1 M Canada Canadian Utilities Canadian Utilities—Renewable
20 Tidewater Renewables Ltd Canada Canadian Utilities Canadian Utilities—Renewable
21 Just Energy Group Inc. Canada Canadian Utilities Canadian Utilities—Diversified

Top Utilities Companies from Canada as of Jan. 01, 2026

1. Fortis Inc.

Company Profile: Fortis Inc.
Market Cap (USD): $26.27 B
Country: Canada
Sector: Canadian Utilities
Industry: Canadian Utilities—Regulated Electric

2. Hydro One Limited

Company Profile: Hydro One Limited
Market Cap (USD): $23.82 B
Country: Canada
Sector: Canadian Utilities
Industry: Canadian Utilities—Regulated Electric

3. Emera Incorporated

Company Profile: Emera Incorporated
Market Cap (USD): $14.88 B
Country: Canada
Sector: Canadian Utilities
Industry: Canadian Utilities—Diversified

4. AltaGas Ltd.

Company Profile: AltaGas Ltd.
Market Cap (USD): $9.58 B
Country: Canada
Sector: Canadian Utilities
Industry: Canadian Utilities—Regulated Gas

5. Canadian Utilities Limited

Company Profile: Canadian Utilities Limited
Market Cap (USD): $8.49 B
Country: Canada
Sector: Canadian Utilities
Industry: Canadian Utilities—Diversified

6. Capital Power Corporation

Company Profile: Capital Power Corporation
Market Cap (USD): $6.84 B
Country: Canada
Sector: Canadian Utilities
Industry: Canadian Utilities—Independent Power Producers

7. Algonquin Power & Utilities Corp.

Company Profile: Algonquin Power & Utilities Corp.
Market Cap (USD): $4.72 B
Country: Canada
Sector: Canadian Utilities
Industry: Canadian Utilities—Renewable

8. ATCO Ltd.

Company Profile: ATCO Ltd.
Market Cap (USD): $4.72 B
Country: Canada
Sector: Canadian Utilities
Industry: Canadian Utilities—Diversified

9. TransAlta Corporation

Company Profile: TransAlta Corporation
Market Cap (USD): $3.86 B
Country: Canada
Sector: Canadian Utilities
Industry: Canadian Utilities—Independent Power Producers

10. Northland Power Inc.

Company Profile: Northland Power Inc.
Market Cap (USD): $3.48 B
Country: Canada
Sector: Canadian Utilities
Industry: Canadian Utilities—Renewable

11. TransAlta Renewables Inc.

Company Profile: TransAlta Renewables Inc.
Market Cap (USD): $2.62 B (July 1, 2023)
Country: Canada
Sector: Canadian Utilities
Industry: Canadian Utilities—Renewable

12. Innergex Renewable Energy Inc.

Company Profile: Innergex Renewable Energy Inc.
Market Cap (USD): $2.03 B (July 1, 2025)
Country: Canada
Sector: Canadian Utilities
Industry: Canadian Utilities—Renewable

13. Boralex Inc.

Company Profile: Boralex Inc.
Market Cap (USD): $1.96 B
Country: Canada
Sector: Canadian Utilities
Industry: Canadian Utilities—Renewable

14. Superior Plus Corp.

Company Profile: Superior Plus Corp.
Market Cap (USD): $1.15 B
Country: Canada
Sector: Canadian Utilities
Industry: Canadian Utilities—Regulated Gas

15. H2O Innovation, Inc.

Company Profile: H2O Innovation, Inc.
Market Cap (USD): $215.2 M (July 1, 2023)
Country: Canada
Sector: Canadian Utilities
Industry: Canadian Utilities—Regulated Water

16. Maxim Power Corp.

Company Profile: Maxim Power Corp.
Market Cap (USD): $206.2 M
Country: Canada
Sector: Canadian Utilities
Industry: Canadian Utilities—Independent Power Producers

17. Altius Renewable Royalties Corp.

Company Profile: Altius Renewable Royalties Corp.
Market Cap (USD): $203.5 M (July 1, 2024)
Country: Canada
Sector: Canadian Utilities
Industry: Canadian Utilities—Renewable

18. Polaris Infrastructure Inc.

Company Profile: Polaris Infrastructure Inc.
Market Cap (USD): $187.3 M
Country: Canada
Sector: Canadian Utilities
Industry: Canadian Utilities—Renewable

19. Green Impact Partners, Inc.

Company Profile: Green Impact Partners, Inc.
Market Cap (USD): $48.1 M
Country: Canada
Sector: Canadian Utilities
Industry: Canadian Utilities—Renewable

20. Tidewater Renewables Ltd

Company Profile: Tidewater Renewables Ltd
Country: Canada
Sector: Canadian Utilities
Industry: Canadian Utilities—Renewable

21. Just Energy Group Inc.

Company Profile: Just Energy Group Inc.
Country: Canada
Sector: Canadian Utilities
Industry: Canadian Utilities—Diversified

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