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
$441.438 B
0.4% of all US-listed value
Companies
20
Ranked #42 of 152 industries
Average
$22.072 B
Mean market cap per company
| # | Name | Market cap | Close | Session | Country |
|---|---|---|---|---|---|
| 1 | Duke EnergyDUK | $90.1B | $115.50 | -0.14% | United States |
| 2 | Xcel EnergyXEL | $45.2B | $72.42 | -0.43% | United States |
| 3 | ExelonEXC | $42.8B | $41.49 | -0.46% | United States |
| 4 | Consolidated EdisonED | $38.7B | $104.64 | -0.46% | United States |
| 5 | Public Service Enterprise GroupPEG | $35.8B | $71.74 | +0.01% | United States |
| 6 | PG&EPCG | $34.3B | $12.79 | +2.32% | United States |
| 7 | Wec Energy GroupWEC | $33.6B | $103.18 | -0.01% | United States |
| 8 | AmerenAEE | $28.0B | $101.32 | -0.35% | United States |
| 9 | Cms EnergyCMS | $20.4B | $65.07 | +0.00% | United States |
| 10 | NisourceNI | $19.4B | $40.54 | -0.32% | United States |
| 11 | EvergyEVRG | $18.5B | $80.30 | -0.06% | United States |
| 12 | Alliant EnergyLNT | $16.9B | $65.21 | -0.43% | United States |
| 13 | Entergy New OrleansENJ | $8.55B | $18.33 | -2.63% | United States |
| 14 | NorthWestern Energy GroupNWE | $4.55B | $73.97 | +7.33% | United States |
| 15 | AvistaAVA | $2.95B | $35.23 | +0.11% | United States |
| 16 | UnitilUTL | $944.1M | $51.77 | +1.15% | United States |
| 17 | Genie EnergyGNE | $439.0M | $16.68 | +1.58% | United States |
| 18 | VivoPowerVIVO | $104.0M | $3.25 | -1.22% | United Kingdom |
| 19 | TurbogenTRBG | $93.2M | $3.66 | -5.91% | Israel |
| 20 | PowerbankPBK | $12.1M | $0.25 | +1.98% | Canada |
All 20 companies. One row per company, with secondary share classes folded into their primary listing. Updated 9 Oct 2026.
Sectors power generation companies sit in
Other industries
Semiconductors 100Computer Software: Programming Data Processing 77Computer Software: Prepackaged Software 234Computer Manufacturing 10Biotechnology: Pharmaceutical Preparations 500Major Banks 245Industrial Machinery/Components 212Catalog/Specialty Distribution 30Business Services 92Commercial Banks 35Auto Manufacturing 29Integrated oil Companies 16Oil & Gas Production 116Investment Bankers/Brokers/Service 68Real Estate Investment Trusts 175Department/Specialty Retail Stores 13Telecommunications Equipment 84Electronic Components 21Beverages (Production/Distribution) 36Electric Utilities: Central 61Finance: Consumer Services 165Consumer Electronics/Appliances 23Biotechnology: Biological Products (No Diagnostic Substances) 160Medical Specialities 44All industries โ
Figures come from SEC filings and daily market prices. Companies listed only outside the US are not covered: see methodology.