Canada

Top 4 largest Canadian Companies in the Steel industry by Market Cap

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

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

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Rank Company Market Cap (USD) Country Sector Industry
1 Stelco Holdings Inc. $1.42 B

(July 1, 2024)

 Canada Canadian Basic Materials Canadian Steel
2 Labrador Iron Ore Royalty Corporation $1.37 B Canada Canadian Basic Materials Canadian Steel
3 Algoma Steel Inc. $412.7 M Canada Canadian Basic Materials Canadian Steel
4 Tree Island Steel Ltd. $54.2 M Canada Canadian Basic Materials Canadian Steel

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

1. Stelco Holdings Inc.

Company Profile: Stelco Holdings Inc.
Market Cap (USD): $1.42 B (July 1, 2024)
Country: Canada
Sector: Canadian Basic Materials
Industry: Canadian Steel

2. Labrador Iron Ore Royalty Corporation

Company Profile: Labrador Iron Ore Royalty Corporation
Market Cap (USD): $1.37 B
Country: Canada
Sector: Canadian Basic Materials
Industry: Canadian Steel

3. Algoma Steel

Company Profile: Algoma Steel Inc.
Market Cap (USD): $412.7 M
Country: Canada
Sector: Canadian Basic Materials
Industry: Canadian Steel

4. Tree Island Steel Ltd.

Company Profile: Tree Island Steel Ltd.
Market Cap (USD): $54.2 M
Country: Canada
Sector: Canadian Basic Materials
Industry: Canadian Steel

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