Largest power generation companies
Every US-listed power generation company we cover, 20 of them, ranked by market capitalisation, with revenue and earnings taken from their SEC filings.
Combined market cap
$431.305 B
0.4% of all US-listed value
Companies
20
Ranked #43 of 152 industries
Average
$21.565 B
Mean market cap per company
| # | Name | Market cap | Close | Session | Country |
|---|---|---|---|---|---|
| 1 | Duke EnergyDUK | $89.0B | $114.17 | -1.84% | United States |
| 2 | Xcel EnergyXEL | $44.1B | $70.66 | -1.94% | United States |
| 3 | ExelonEXC | $42.0B | $40.69 | -2.66% | United States |
| 4 | Consolidated EdisonED | $37.9B | $102.61 | -1.19% | United States |
| 5 | Public Service Enterprise GroupPEG | $33.5B | $67.31 | -2.62% | United States |
| 6 | PG&EPCG | $33.3B | $12.41 | -3.65% | United States |
| 7 | Wec Energy GroupWEC | $33.0B | $101.17 | -1.61% | United States |
| 8 | AmerenAEE | $27.6B | $99.74 | -1.89% | United States |
| 9 | Cms EnergyCMS | $19.8B | $63.15 | -1.74% | United States |
| 10 | NisourceNI | $18.8B | $39.25 | -1.58% | United States |
| 11 | EvergyEVRG | $18.1B | $78.42 | -1.07% | United States |
| 12 | Alliant EnergyLNT | $16.5B | $63.69 | -1.44% | United States |
| 13 | Entergy New OrleansENJ | $8.82B | $18.90 | -1.95% | United States |
| 14 | NorthWestern Energy GroupNWE | $4.23B | $68.70 | -1.68% | United States |
| 15 | AvistaAVA | $2.97B | $35.45 | -1.53% | United States |
| 16 | UnitilUTL | $927.3M | $50.85 | -1.53% | United States |
| 17 | Genie EnergyGNE | $416.9M | $15.84 | -1.74% | United States |
| 18 | VivoPowerVIVO | $123.5M | $3.86 | +0.26% | United Kingdom |
| 19 | TurbogenTRBG | $95.2M | $3.74 | +4.47% | Israel |
| 20 | PowerbankPBK | $12.4M | $0.26 | -2.73% | Canada |
All 20 companies. One row per company, with secondary share classes folded into their primary listing. Updated 24 Sept 2026.
Sectors power generation companies sit in
Other industries
Semiconductors 101Computer Software: Programming Data Processing 77Computer Software: Prepackaged Software 234Computer Manufacturing 10Biotechnology: Pharmaceutical Preparations 500Major Banks 246Industrial Machinery/Components 211Catalog/Specialty Distribution 31Business Services 93Commercial Banks 35Auto Manufacturing 29Integrated oil Companies 18Investment Bankers/Brokers/Service 68Oil & Gas Production 116Real Estate Investment Trusts 177Department/Specialty Retail Stores 14Telecommunications Equipment 82Electronic Components 21Beverages (Production/Distribution) 36Finance: Consumer Services 162Electric Utilities: Central 60Consumer Electronics/Appliances 23Biotechnology: Biological Products (No Diagnostic Substances) 160Natural Gas Distribution 29All industries โ
Figures come from SEC filings and daily market prices. Companies listed only outside the US are not covered: see methodology.