Largest power generation companies
Every US-listed power generation company we cover — 19 of them — ranked by market capitalisation, with revenue and earnings taken from their SEC filings.
Combined market cap
$481.188 B
0.5% of all US-listed value
Companies
19
Ranked #42 of 152 industries
Average
$25.326 B
Mean market cap per company
| # | Name | Market cap | Close | Session | Country |
|---|---|---|---|---|---|
| 1 | Duke EnergyDUK | $97.3B | $124.85 | +0.77% | United States |
| 2 | Xcel EnergyXEL | $48.8B | $78.07 | +1.43% | United States |
| 3 | ExelonEXC | $47.1B | $45.61 | +0.64% | United States |
| 4 | PG&EPCG | $46.8B | $17.46 | +2.71% | United States |
| 5 | Consolidated EdisonED | $39.8B | $107.98 | -0.89% | United States |
| 6 | Public Service Enterprise GroupPEG | $37.7B | $75.66 | +0.83% | United States |
| 7 | Wec Energy GroupWEC | $35.1B | $107.63 | -0.32% | United States |
| 8 | AmerenAEE | $30.1B | $108.84 | +0.53% | United States |
| 9 | Cms EnergyCMS | $22.3B | $71.03 | -0.24% | United States |
| 10 | NisourceNI | $20.4B | $42.61 | -1.77% | United States |
| 11 | EvergyEVRG | $19.2B | $83.38 | +0.43% | United States |
| 12 | Alliant EnergyLNT | $18.0B | $69.37 | -0.22% | United States |
| 13 | Entergy New OrleansENJ | $9.40B | $20.15 | +0.00% | United States |
| 14 | NorthWestern Energy GroupNWE | $4.43B | $72.09 | +2.59% | United States |
| 15 | AvistaAVA | $3.24B | $38.73 | +0.81% | United States |
| 16 | UnitilUTL | $979.9M | $53.73 | -0.13% | United States |
| 17 | Genie EnergyGNE | $384.2M | $14.55 | -1.29% | United States |
| 18 | VivoPowerVIVO | $111.3M | $4.04 | +5.48% | United Kingdom |
| 19 | PowerbankPBK | $23.2M | $0.49 | +5.02% | Canada |
All 19 companies. One row per company — secondary share classes are folded into their primary listing. Updated 9 Aug 2026.
Sectors power generation companies sit in
Other industries
Semiconductors 100Computer Software: Programming Data Processing 77Computer Software: Prepackaged Software 232Computer Manufacturing 10Biotechnology: Pharmaceutical Preparations 501Major Banks 245Industrial Machinery/Components 209Catalog/Specialty Distribution 30Business Services 93Commercial Banks 35Auto Manufacturing 29Integrated oil Companies 18Investment Bankers/Brokers/Service 68Real Estate Investment Trusts 179Department/Specialty Retail Stores 14Oil & Gas Production 116Telecommunications Equipment 82Beverages (Production/Distribution) 35Electronic Components 21Finance: Consumer Services 163Electric Utilities: Central 59Consumer Electronics/Appliances 23Natural Gas Distribution 29Medical Specialities 44All industries →
Figures come from SEC filings and daily market prices. Companies listed only outside the US are not covered — see methodology.