Companies similar to American Electric Power (AEP)

Duke Energy is a regulated utility giant serving 8.7 million electric and natural gas customers across the Southeast and Midwest through vertically integrated…

$125.91 (as of 2026-07-21) · market cap $97.4B

A major Southeastern utility holding company providing diversified electric and natural gas service alongside wholesale power and infrastructure solutions.

$93.85 (as of 2026-07-21) · market cap $105.8B

NextEra Energy is a diversified energy holding company operating electric utilities and developing renewable energy and energy storage assets.

$87.93 (as of 2026-07-21) · market cap $182.9B

Dominion Energy is a diversified regulated utility providing electricity and natural gas to millions of customers across Virginia, the Carolinas, and beyond,…

$69.85 (as of 2026-07-21) · market cap $61.9B

A diversified utility company operating regulated electric and gas distribution networks across six mid-Atlantic and Midwest states, with significant…

$45.89 (as of 2026-07-21) · market cap $46.9B

FirstEnergy operates one of the nation's largest investor-owned electric utility systems serving 6+ million customers across the Midwest and Mid-Atlantic with…

$48.39 (as of 2026-07-21) · market cap $27.9B

Regional electric utility serving the lower Mississippi Valley with a diverse generation fleet including nuclear, natural gas, and renewable assets, positioned…

$112.22 (as of 2026-07-21) · market cap $50.9B