United States

Top 129 largest US Companies in the Utilities sector by Market Cap

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

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Top Utilities Companies from the United States as of Jan. 01, 2024

Rank Company Market Cap (USD) Country Sector Industry
31 Evergy, Inc. $12.38 B United States Utilities Utilities—Regulated Electric
32 NRG Energy, Inc. $11.67 B United States Utilities Utilities—Independent Power Producers
33 NiSource Inc. $11.12 B United States Utilities Utilities—Regulated Gas
34 Essential Utilities, Inc. $10.36 B United States Utilities Utilities—Regulated Water
35 Pinnacle West Capital Corporation $8.43 B United States Utilities Utilities—Regulated Electric
36 New Fortress Energy Inc. $7.54 B United States Utilities Utilities—Regulated Gas
37 OGE Energy Corp. $7.16 B United States Utilities Utilities—Regulated Electric
38 Union Electric Co. $6.94 B United States Utilities Utilities—Regulated Electric
39 Clearway Energy, Inc. $5.28 B United States Utilities Utilities—Renewable
40 Brookfield Renewable Corporation $5.28 B United States Utilities Utilities—Renewable
41 UGI Corporation $5.20 B United States Utilities Utilities—Regulated Gas
42 IDACORP, Inc. $5.01 B United States Utilities Utilities—Regulated Electric
43 Southwest Gas Holdings, Inc. $4.59 B United States Utilities Utilities—Regulated Gas
44 Brookfield Infrastructure Corporation $4.59 B United States Utilities Utilities—Regulated Gas
45 Ormat Technologies, Inc. $4.56 B United States Utilities Utilities—Renewable
46 Portland General Electric Company $4.48 B United States Utilities Utilities—Regulated Electric
47 New Jersey Resources Corporation $4.43 B United States Utilities Utilities—Regulated Gas
48 South Jersey Industries, Inc. $4.33 B

(Jan. 1, 2023)

 United States Utilities Utilities—Diversified
49 Clear Peak Energy, Inc. $4.20 B United States Utilities Utilities—Independent Power Producers
50 Black Hills Corporation $3.75 B United States Utilities Utilities—Diversified
51 ONE Gas, Inc. $3.61 B United States Utilities Utilities—Regulated Gas
52 ALLETE, Inc. $3.58 B United States Utilities Utilities—Diversified
53 Otter Tail Corporation $3.55 B United States Utilities Utilities—Diversified
54 Spire Inc. $3.39 B United States Utilities Utilities—Regulated Gas
55 PNM Resources, Inc. $3.38 B United States Utilities Utilities—Regulated Electric
56 Alabama Power Co. $3.21 B

(June 1, 2022)

 United States Utilities Utilities—Regulated Electric
57 NorthWestern Corporation $3.14 B United States Utilities Utilities—Diversified
58 American States Water Company $2.87 B United States Utilities Utilities—Regulated Water
59 California Water Service Group $2.84 B United States Utilities Utilities—Regulated Water
60 Avista Corporation $2.80 B United States Utilities Utilities—Diversified

Top Utilities Companies from the United States as of Jan. 01, 2024

31. Evergy, Inc.

Company Profile: Evergy, Inc.
Market Cap (USD): $12.38 B
Country: United States
Sector: Utilities
Industry: Utilities—Regulated Electric

32. NRG Energy, Inc.

Company Profile: NRG Energy, Inc.
Market Cap (USD): $11.67 B
Country: United States
Sector: Utilities
Industry: Utilities—Independent Power Producers

33. NiSource Inc.

Company Profile: NiSource Inc.
Market Cap (USD): $11.12 B
Country: United States
Sector: Utilities
Industry: Utilities—Regulated Gas

34. Essential Utilities, Inc.

Company Profile: Essential Utilities, Inc.
Market Cap (USD): $10.36 B
Country: United States
Sector: Utilities
Industry: Utilities—Regulated Water

35. Pinnacle West Capital Corporation

Company Profile: Pinnacle West Capital Corporation
Market Cap (USD): $8.43 B
Country: United States
Sector: Utilities
Industry: Utilities—Regulated Electric

36. New Fortress Energy Inc.

Company Profile: New Fortress Energy Inc.
Market Cap (USD): $7.54 B
Country: United States
Sector: Utilities
Industry: Utilities—Regulated Gas

37. OGE Energy Corp.

Company Profile: OGE Energy Corp.
Market Cap (USD): $7.16 B
Country: United States
Sector: Utilities
Industry: Utilities—Regulated Electric

38. Union Electric Co.

Company Profile: Union Electric Co.
Market Cap (USD): $6.94 B
Country: United States
Sector: Utilities
Industry: Utilities—Regulated Electric

39. Clearway Energy, Inc.

Company Profile: Clearway Energy, Inc.
Market Cap (USD): $5.28 B
Country: United States
Sector: Utilities
Industry: Utilities—Renewable

40. Brookfield Renewable Corporation

Company Profile: Brookfield Renewable Corporation
Market Cap (USD): $5.28 B
Country: United States
Sector: Utilities
Industry: Utilities—Renewable

41. UGI Corporation

Company Profile: UGI Corporation
Market Cap (USD): $5.20 B
Country: United States
Sector: Utilities
Industry: Utilities—Regulated Gas

42. IDACORP, Inc.

Company Profile: IDACORP, Inc.
Market Cap (USD): $5.01 B
Country: United States
Sector: Utilities
Industry: Utilities—Regulated Electric

43. Southwest Gas Holdings, Inc.

Company Profile: Southwest Gas Holdings, Inc.
Market Cap (USD): $4.59 B
Country: United States
Sector: Utilities
Industry: Utilities—Regulated Gas

44. Brookfield Infrastructure Corporation

Company Profile: Brookfield Infrastructure Corporation
Market Cap (USD): $4.59 B
Country: United States
Sector: Utilities
Industry: Utilities—Regulated Gas

45. Ormat Technologies, Inc.

Company Profile: Ormat Technologies, Inc.
Market Cap (USD): $4.56 B
Country: United States
Sector: Utilities
Industry: Utilities—Renewable

46. Portland General Electric Company

Company Profile: Portland General Electric Company
Market Cap (USD): $4.48 B
Country: United States
Sector: Utilities
Industry: Utilities—Regulated Electric

47. New Jersey Resources Corporation

Company Profile: New Jersey Resources Corporation
Market Cap (USD): $4.43 B
Country: United States
Sector: Utilities
Industry: Utilities—Regulated Gas

48. South Jersey Industries, Inc.

Company Profile: South Jersey Industries, Inc.
Market Cap (USD): $4.33 B (Jan. 1, 2023)
Country: United States
Sector: Utilities
Industry: Utilities—Diversified

49. Clear Peak Energy, Inc.

Company Profile: Clear Peak Energy, Inc.
Market Cap (USD): $4.20 B
Country: United States
Sector: Utilities
Industry: Utilities—Independent Power Producers

50. Black Hills Corporation

Company Profile: Black Hills Corporation
Market Cap (USD): $3.75 B
Country: United States
Sector: Utilities
Industry: Utilities—Diversified

51. ONE Gas, Inc.

Company Profile: ONE Gas, Inc.
Market Cap (USD): $3.61 B
Country: United States
Sector: Utilities
Industry: Utilities—Regulated Gas

52. ALLETE, Inc.

Company Profile: ALLETE, Inc.
Market Cap (USD): $3.58 B
Country: United States
Sector: Utilities
Industry: Utilities—Diversified

53. Otter Tail Corporation

Company Profile: Otter Tail Corporation
Market Cap (USD): $3.55 B
Country: United States
Sector: Utilities
Industry: Utilities—Diversified

54. Spire Inc.

Company Profile: Spire Inc.
Market Cap (USD): $3.39 B
Country: United States
Sector: Utilities
Industry: Utilities—Regulated Gas

55. PNM Resources, Inc.

Company Profile: PNM Resources, Inc.
Market Cap (USD): $3.38 B
Country: United States
Sector: Utilities
Industry: Utilities—Regulated Electric

56. Alabama Power Co.

Company Profile: Alabama Power Co.
Market Cap (USD): $3.21 B (June 1, 2022)
Country: United States
Sector: Utilities
Industry: Utilities—Regulated Electric

57. NorthWestern Corporation

Company Profile: NorthWestern Corporation
Market Cap (USD): $3.14 B
Country: United States
Sector: Utilities
Industry: Utilities—Diversified

58. American States Water Company

Company Profile: American States Water Company
Market Cap (USD): $2.87 B
Country: United States
Sector: Utilities
Industry: Utilities—Regulated Water

59. California Water Service Group

Company Profile: California Water Service Group
Market Cap (USD): $2.84 B
Country: United States
Sector: Utilities
Industry: Utilities—Regulated Water

60. Avista Corporation

Company Profile: Avista Corporation
Market Cap (USD): $2.80 B
Country: United States
Sector: Utilities
Industry: Utilities—Diversified

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