Size
Largest Utilities companies by market cap
The most valuable US-listed companies, ranked by market capitalisation (share price times shares outstanding).
Top of the list: Nextera Energy (NEE) $153.2B; Constellation Energy (CEG) $104.6B; Southern (SO) $98.2B.
| # | Company | Market cap | Price | P/E | Revenue growth | Operating margin |
|---|---|---|---|---|---|---|
| 1 | Nextera Energy IncNEE | $153.2B | $77.38 | 18.6x | +7.3% | 29.5% |
| 2 | Constellation Energy CorpCEG | $104.6B | $298.07 | 25.2x | +23.0% | 14.9% |
| 3 | Southern CompanySO | $98.2B | $86.17 | 22.3x | +8.0% | 24.2% |
| 4 | Duke Energy CorporationDUK | $91.4B | $116.65 | 18.0x | +11.3% | 27.2% |
| 5 | National Grid PLC ADRNGG | $73.6B | $76.48 | 18.5x | -7.4% | 26.9% |
| 6 | American Electric Power Co IncAEP | $65.4B | $122.81 | 17.8x | +10.2% | 24.1% |
| 7 | Vistra Corp.VST | $55.1B | $166.72 | 27.3x | -5.5% | 18.6% |
| 8 | Dominion Energy IncD | $53.4B | $61.64 | 18.2x | +23.1% | 26.3% |
| 9 | Sempra EnergySRE | $52.3B | $81.34 | 27.2x | -3.9% | — |
| 10 | Entergy CorporationETR | $46.3B | $102.80 | 25.8x | +12.0% | 23.1% |
| 11 | Xcel Energy IncXEL | $46.0B | $73.78 | 21.2x | -5.1% | 19.1% |
| 12 | Exelon CorporationEXC | $43.3B | $41.76 | 15.5x | +7.9% | 21.1% |
| 13 | Consolidated Edison IncED | $39.8B | $106.10 | 18.2x | +6.2% | 17.4% |
| 14 | Public Service Enterprise Group IncPEG | $36.1B | $72.28 | 16.0x | -8.9% | 23.1% |
| 15 | WEC Energy Group IncWEC | $33.9B | $103.74 | 20.8x | +2.6% | 22.8% |
| 16 | PG&E CorpPCG | $28.6B | $13.13 | 10.1x | +0.1% | 20.0% |
| 17 | Ameren CorpAEE | $27.6B | $102.19 | 17.9x | -5.8% | 24.9% |
| 18 | Fortis IncFTS | $27.0B | $53.31 | 21.5x | +5.8% | 29.3% |
| 19 | Atmos Energy CorporationATO | $26.5B | $161.66 | 19.5x | +4.8% | 37.0% |
| 20 | DTE Energy CompanyDTE | $26.0B | $126.90 | 20.5x | +15.8% | 13.1% |
| 21 | FirstEnergy CorporationFE | $25.9B | $45.00 | 24.3x | +11.6% | 14.7% |
| 22 | PPL CorporationPPL | $25.4B | $34.25 | 20.7x | +10.8% | 23.6% |
| 23 | Eversource EnergyES | $24.9B | $65.73 | 14.2x | +2.3% | 21.6% |
| 24 | CenterPoint Energy IncCNP | $24.8B | $38.53 | 23.3x | +1.9% | 22.5% |
| 25 | American Water WorksAWK | $24.6B | $128.88 | 22.3x | +6.2% | 36.9% |
| 26 | NRG Energy Inc.NRG | $23.3B | $107.97 | 111.5x | +11.0% | 6.1% |
| 27 | Companhia de Saneamento Basico do Estado de Sao Paulo SABESP ADRSBS | $22.9B | $6.74 | 13.0x | +41.4% | — |
| 28 | Edison InternationalEIX | $21.2B | $55.30 | 5.93x | +7.7% | 30.8% |
| 29 | CMS Energy CorporationCMS | $19.8B | $65.07 | 17.7x | -0.5% | 18.9% |
| 30 | NiSource IncNI | $19.7B | $40.76 | 20.4x | +3.5% | 16.4% |
| 31 | Evergy, Inc.EVRG | $18.8B | $80.96 | 21.7x | +5.0% | 25.9% |
| 32 | Brookfield Renewable Partners LPBEP | $18.8B | $29.53 | — | +9.0% | — |
| 33 | Alliant Energy CorpLNT | $17.2B | $65.85 | 20.9x | +5.0% | 23.0% |
| 34 | Brookfield Infrastructure Partners LPBIP | $16.9B | $37.10 | 41.2x | +9.8% | 25.1% |
| 35 | Talen Energy CorporationTLN | $16.0B | $378.57 | — | +18.6% | 2.6% |
| 36 | Emera IncorporatedEMA | $13.9B | $45.66 | 19.2x | +21.9% | 22.5% |
| 37 | Korea Electric Power Corp ADRKEP | $13.1B | $11.03 | 2.25x | +5.8% | 9.1% |
| 38 | Pinnacle West Capital CorpPNW | $12.1B | $97.54 | 18.6x | +7.1% | 20.5% |
| 39 | Companhia Paranaense de Energia - COPELELPC | $10.8B | $14.19 | 20.3x | +5.5% | -3.6% |
| 40 | Essential Utilities IncWTRG | $10.8B | $38.98 | 19.5x | +3.1% | 35.1% |
| 41 | The AES CorporationAES | $10.7B | $14.94 | 7.80x | +19.9% | — |
| 42 | OGE Energy CorporationOGE | $9.7B | $46.50 | 21.0x | -0.6% | 24.4% |
| 43 | Enlight Renewable Energy Ltd. Ordinary SharesENLT | $8.7B | $67.41 | 67.4x | +29.3% | 68.0% |
| 44 | UGI CorporationUGI | $8.3B | $37.12 | 13.7x | -4.5% | 16.2% |
| 45 | IDACORP IncIDA | $7.5B | $135.42 | 22.4x | +1.8% | 19.5% |
| 46 | Clearway Energy Inc Class CCWEN | $6.9B | $30.19 | 288.4x | +22.7% | 13.4% |
| 47 | Companhia Energetica de Minas Gerais CEMIG Pref ADRCIG | $6.9B | $2.40 | 7.08x | +8.1% | — |
| 48 | TXNM Energy, Inc.TXNM | $6.5B | $58.61 | 41.6x | +4.6% | 20.4% |
| 49 | Enel Chile SA ADRENIC | $6.2B | $4.48 | 11.8x | -8.4% | 9.6% |
| 50 | Southwest Gas Holdings IncSWX | $6.1B | $84.14 | 25.6x | -21.6% | — |
| 51 | Black Hills CorporationBKH | $5.7B | $76.08 | 19.5x | +3.1% | 23.9% |
| 52 | Portland General Electric CoPOR | $5.4B | $45.39 | 20.7x | +1.6% | 14.2% |
| 53 | Ormat Technologies IncORA | $5.4B | $88.92 | 42.1x | +10.6% | 16.6% |
| 54 | Brookfield Renewable CorpBEPC | $5.3B | $29.63 | — | -10.0% | — |
| 55 | NewJersey Resources CorporationNJR | $5.2B | $51.21 | 15.2x | +16.8% | 24.8% |
| 56 | Oklo Inc.OKLO | $4.8B | $34.70 | — | — | — |
| 57 | Spire IncSR | $4.7B | $78.42 | 16.1x | +4.5% | 21.5% |
| 58 | NorthWestern CorporationNWE | $4.6B | $74.15 | 26.8x | +14.6% | 18.8% |
| 59 | One Gas IncOGS | $4.5B | $72.50 | 16.2x | — | — |
| 60 | Brookfield Infrastructure CorpBIPC | $4.5B | $37.13 | — | +0.1% | 61.5% |
| 61 | TransAlta CorpTAC | $4.0B | $13.13 | — | -15.5% | 5.8% |
| 62 | Algonquin Power & Utilities CorpAQN | $3.9B | $5.11 | 23.2x | +4.9% | 20.7% |
| 63 | MDU Resources Group IncMDU | $3.9B | $18.74 | 20.1x | +6.9% | 17.0% |
| 64 | American States Water CompanyAWR | $3.1B | $82.26 | 23.4x | +11.2% | 31.9% |
| 65 | Chesapeake Utilities CorporationCPK | $3.0B | $127.75 | 20.2x | +4.7% | 27.3% |
| 66 | Avista CorporationAVA | $2.9B | $35.49 | 14.0x | +0.5% | 18.8% |
| 67 | Kenon HoldingsKEN | $2.9B | $59.84 | 47.1x | +16.1% | 7.2% |
| 68 | Renew Energy Global PLCRNW | $2.7B | $6.88 | 26.5x | +19.4% | 10.4% |
| 69 | California Water Service GroupCWT | $2.7B | $45.94 | 22.5x | +8.5% | 18.5% |
| 70 | MGE Energy IncMGEE | $2.7B | $70.22 | 18.2x | +10.8% | 22.3% |
| 71 | H2O AmericaHTO | $2.5B | $58.48 | 20.2x | +9.4% | 21.9% |
| 72 | Centuri Holdings, Inc.CTRI | $2.1B | $20.90 | 56.6x | +32.9% | 2.7% |
| 73 | Northwest Natural Gas CoNWN | $2.0B | $47.73 | 16.4x | +3.1% | 22.9% |
| 74 | Central Puerto S.A.CEPU | $1.8B | $12.64 | 5.67x | +8.1% | 26.7% |
| 75 | Hawaiian Electric Industries IncHE | $1.6B | $8.76 | 12.2x | +25.9% | 11.5% |
| 76 | Fluence Energy IncFLNC | $1.3B | $7.43 | — | +7.8% | — |
| 77 | Suburban Propane Partners LPSPH | $1.2B | $17.09 | 9.08x | +0.5% | 15.1% |
Ranked from each company's latest price and reported results. Companies need a page on Investingly (SEC statements on file). Open any company for its reverse DCF, insider buying and 13F holders.
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Questions
Which company ranks first on the largest utilities companies by market cap list?
Nextera Energy (NEE), with a market cap of $153.2B, as of October 12, 2026.
How is this list built?
The most valuable US-listed companies, ranked by market capitalisation (share price times shares outstanding). It shows the top 77 and is rebuilt every day.
Prices and ratios as of Oct 11, 2026. Statements from SEC filings. Information only, not investment advice.