United States

Top 16 largest US Companies in the Utilities—Regulated Water industry by Market Cap

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

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Top Utilities—Regulated Water Companies from the United States as of Jul. 01, 2025

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Rank Company Market Cap (USD) Country Sector Industry
1 American Water Works Company, Inc. $27.36 B United States US Utilities US Utilities—Regulated Water
2 Essential Utilities, Inc. $10.31 B United States US Utilities US Utilities—Regulated Water
3 American States Water Company $2.97 B United States US Utilities US Utilities—Regulated Water
4 California Water Service Group $2.73 B United States US Utilities US Utilities—Regulated Water
5 SJW Group $1.88 B United States US Utilities US Utilities—Regulated Water
6 Middlesex Water Company $995.8 M United States US Utilities US Utilities—Regulated Water
7 The York Water Company $465.7 M United States US Utilities US Utilities—Regulated Water
8 Artesian Resources Corporation $348.3 M United States US Utilities US Utilities—Regulated Water
9 Vidler Water Resources, Inc. $288.2 M

(May 1, 2022)

 United States US Utilities US Utilities—Regulated Water
10 Global Water Resources, Inc. $278.9 M United States US Utilities US Utilities—Regulated Water
11 Pure Cycle Corporation $267.0 M United States US Utilities US Utilities—Regulated Water
12 Cadiz Inc. $259.5 M United States US Utilities US Utilities—Regulated Water
13 Torrington Water Co. $66.5 M

(Oct. 1, 2022)

 United States US Utilities US Utilities—Regulated Water
14 Empire Diversified Energy, Inc. $8.5 M United States US Utilities US Utilities—Regulated Water
15 Aris Water Solutions, Inc. United States US Utilities US Utilities—Regulated Water
16 Zurn Water Solutions Corp United States US Utilities US Utilities—Regulated Water

Top Utilities—Regulated Water Companies from the United States as of Jul. 01, 2025

1. American Water Works Company, Inc.

Company Profile: American Water Works Company, Inc.
Market Cap (USD): $27.36 B
Country: United States
Sector: US Utilities
Industry: US Utilities—Regulated Water

2. Essential Utilities, Inc.

Company Profile: Essential Utilities, Inc.
Market Cap (USD): $10.31 B
Country: United States
Sector: US Utilities
Industry: US Utilities—Regulated Water

3. American States Water Company

Company Profile: American States Water Company
Market Cap (USD): $2.97 B
Country: United States
Sector: US Utilities
Industry: US Utilities—Regulated Water

4. California Water Service Group

Company Profile: California Water Service Group
Market Cap (USD): $2.73 B
Country: United States
Sector: US Utilities
Industry: US Utilities—Regulated Water

5. SJW Group

Company Profile: SJW Group
Market Cap (USD): $1.88 B
Country: United States
Sector: US Utilities
Industry: US Utilities—Regulated Water

6. Middlesex Water Company

Company Profile: Middlesex Water Company
Market Cap (USD): $995.8 M
Country: United States
Sector: US Utilities
Industry: US Utilities—Regulated Water

7. The York Water Company

Company Profile: The York Water Company
Market Cap (USD): $465.7 M
Country: United States
Sector: US Utilities
Industry: US Utilities—Regulated Water

8. Artesian Resources Corporation

Company Profile: Artesian Resources Corporation
Market Cap (USD): $348.3 M
Country: United States
Sector: US Utilities
Industry: US Utilities—Regulated Water

9. Vidler Water Resources, Inc.

Company Profile: Vidler Water Resources, Inc.
Market Cap (USD): $288.2 M (May 1, 2022)
Country: United States
Sector: US Utilities
Industry: US Utilities—Regulated Water

10. Global Water Resources, Inc.

Company Profile: Global Water Resources, Inc.
Market Cap (USD): $278.9 M
Country: United States
Sector: US Utilities
Industry: US Utilities—Regulated Water

11. Pure Cycle Corporation

Company Profile: Pure Cycle Corporation
Market Cap (USD): $267.0 M
Country: United States
Sector: US Utilities
Industry: US Utilities—Regulated Water

12. Cadiz Inc.

Company Profile: Cadiz Inc.
Market Cap (USD): $259.5 M
Country: United States
Sector: US Utilities
Industry: US Utilities—Regulated Water

13. Torrington Water Co.

Company Profile: Torrington Water Co.
Market Cap (USD): $66.5 M (Oct. 1, 2022)
Country: United States
Sector: US Utilities
Industry: US Utilities—Regulated Water

14. Empire Diversified Energy, Inc.

Company Profile: Empire Diversified Energy, Inc.
Market Cap (USD): $8.5 M
Country: United States
Sector: US Utilities
Industry: US Utilities—Regulated Water

15. Aris Water Solutions, Inc.

Company Profile: Aris Water Solutions, Inc.
Country: United States
Sector: US Utilities
Industry: US Utilities—Regulated Water

16. Zurn Water Solutions Corp

Company Profile: Zurn Water Solutions Corp
Country: United States
Sector: US Utilities
Industry: US Utilities—Regulated Water

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