United States

Top 14 largest US Companies in the Steel industry by Market Cap

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

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Top Steel Companies from the United States as of Jul. 01, 2025

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Rank Company Market Cap (USD) Country Sector Industry
1 Nucor Corporation $32.04 B United States US Basic Materials US Steel
2 Steel Dynamics, Inc. $19.90 B United States US Basic Materials US Steel
3 Reliance Steel & Aluminum Co. $17.11 B United States US Basic Materials US Steel
4 United States Steel Corporation $12.42 B

(June 1, 2025)

 United States US Basic Materials US Steel
5 Commercial Metals Company $5.87 B United States US Basic Materials US Steel
6 Cleveland-Cliffs Inc. $4.36 B United States US Basic Materials US Steel
7 TimkenSteel Corporation $895.4 M

(April 1, 2024)

 United States US Basic Materials US Steel
8 Radius Recycling, Inc. $840.1 M United States US Basic Materials US Steel
9 Universal Stainless & Alloy Products, Inc. $423.6 M

(Jan. 1, 2025)

 United States US Basic Materials US Steel
10 Olympic Steel, Inc. $388.6 M United States US Basic Materials US Steel
11 Mesabi Trust $328.0 M United States US Basic Materials US Steel
12 Webco Industries, Inc. $162.3 M United States US Basic Materials US Steel
13 Friedman Industries, Incorporated $117.7 M United States US Basic Materials US Steel
14 Synalloy Corporation United States US Basic Materials US Steel

Top Steel Companies from the United States as of Jul. 01, 2025

1. Nucor Corporation

Company Profile: Nucor Corporation
Market Cap (USD): $32.04 B
Country: United States
Sector: US Basic Materials
Industry: US Steel

2. Steel Dynamics, Inc.

Company Profile: Steel Dynamics, Inc.
Market Cap (USD): $19.90 B
Country: United States
Sector: US Basic Materials
Industry: US Steel

3. Reliance Steel & Aluminum Co.

Company Profile: Reliance Steel & Aluminum Co.
Market Cap (USD): $17.11 B
Country: United States
Sector: US Basic Materials
Industry: US Steel

4. United States Steel Corporation

Company Profile: United States Steel Corporation
Market Cap (USD): $12.42 B (June 1, 2025)
Country: United States
Sector: US Basic Materials
Industry: US Steel

5. Commercial Metals Company

Company Profile: Commercial Metals Company
Market Cap (USD): $5.87 B
Country: United States
Sector: US Basic Materials
Industry: US Steel

6. Cleveland-Cliffs Inc.

Company Profile: Cleveland-Cliffs Inc.
Market Cap (USD): $4.36 B
Country: United States
Sector: US Basic Materials
Industry: US Steel

7. TimkenSteel Corporation

Company Profile: TimkenSteel Corporation
Market Cap (USD): $895.4 M (April 1, 2024)
Country: United States
Sector: US Basic Materials
Industry: US Steel

8. Radius Recycling, Inc.

Company Profile: Radius Recycling, Inc.
Market Cap (USD): $840.1 M
Country: United States
Sector: US Basic Materials
Industry: US Steel

9. Universal Stainless & Alloy Products, Inc.

Company Profile: Universal Stainless & Alloy Products, Inc.
Market Cap (USD): $423.6 M (Jan. 1, 2025)
Country: United States
Sector: US Basic Materials
Industry: US Steel

10. Olympic Steel, Inc.

Company Profile: Olympic Steel, Inc.
Market Cap (USD): $388.6 M
Country: United States
Sector: US Basic Materials
Industry: US Steel

11. Mesabi Trust

Company Profile: Mesabi Trust
Market Cap (USD): $328.0 M
Country: United States
Sector: US Basic Materials
Industry: US Steel

12. Webco Industries, Inc.

Company Profile: Webco Industries, Inc.
Market Cap (USD): $162.3 M
Country: United States
Sector: US Basic Materials
Industry: US Steel

13. Friedman Industries, Incorporated

Company Profile: Friedman Industries, Incorporated
Market Cap (USD): $117.7 M
Country: United States
Sector: US Basic Materials
Industry: US Steel

14. Synalloy Corporation

Company Profile: Synalloy Corporation
Country: United States
Sector: US Basic Materials
Industry: US Steel

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