World Top 100 Nuclear Power Companies List by Market Cap as of August 2026

World Top 100 Nuclear Power Companies List by Market Cap as of August 2026, World Biggest 100 Nuclear Power Companies by Market Cap, World Largest 100 Nuclear Power Companies in the World by market cap as of August 2026.

World Top Nuclear Power Companies by Market Cap in 2026
World Top Nuclear Power Companies by Market Cap in 2026, World Largest Nuclear Power Companies by Market Cap in 2026.

  1. National Atomic Company Kazatomprom

    World Rank (Aug-2026)
    1,377
    Market Cap (Aug-2026)
    17.811 Billion USD
    World Rank (Jan-05-2024)
    1,468
    Market Cap (Jan-05-2024)
    11.510 Billion USD
    World Rank (Jul-30-2023)
    1,966
    Market Cap (Jul-30-2023)
    8.205 Billion USD
    World Rank (Dec-25-2022)
    1,928
    Market Cap (Dec-25-2022)
    7.519 Billion USD
    World Rank (Jan-07-2022)
    1,831
    Market Cap (Jan-07-2022)
    10.36 Billion USD
    Annual Revenue in USD
    2,203 Million USD
    Annual Operating Income in USD
    999 Million USD
    Annual Net Income in USD
    766 Million USD
    Annual Results for Period Ending
    Dec-2022 ending year
    Headquarters Country
    Kazakhstan
    Yahoo @ Frankfurt
    Company Profile

    National Atomic Company Kazatomprom is the national operator of the Republic of Kazakhstan for the import and export of uranium, rare metals, nuclear fuel for nuclear power plants company. It involved in the front end of the nuclear fuel cycle from geological exploration, uranium mining and production of nuclear fuel cycle through to scientific research and development of patented technologies. The headquarters is in Kazakhstan.

    Company Website
    NATIONAL ATOMIC COMPANY KAZATOMPROM

  2. Kansai Electric Power Company

    World Rank (Aug-2026)
    1,434
    Market Cap (Aug-2026)
    16.872 Billion USD
    World Rank (Jan-05-2024)
    1,426
    Market Cap (Jan-05-2024)
    12.030 Billion USD
    World Rank (Jul-30-2023)
    1,514
    Market Cap (Jul-30-2023)
    11.391 Billion USD
    World Rank (Dec-25-2022)
    1,758
    Market Cap (Dec-25-2022)
    8.451 Billion USD
    World Rank (Jan-07-2022)
    2,138
    Market Cap (Jan-07-2022)
    8.50 Billion USD
    Annual Revenue in USD
    27,995 Million USD
    Annual Operating Income in USD
    -369 Million USD
    Annual Net Income in USD
    125 Million USD
    Annual Results for Period Ending
    Mar-2023 ending year
    Headquarters Country
    Japan
    Stock Category
    NIKKEI 225
    Yahoo
    Company Profile
    Electricity generation and Electric Utility Company with headquarters is in Japan.
    Company Website
    THE KANSAI ELECTRIC POWER COMPANY
    Wikipedia
    Wikipedia

  3. PGE Polska Grupa Energetyczna

    World Rank (Aug-2026)
    3,121
    Market Cap (Aug-2026)
    6.191 Billion USD
    World Rank (Jan-05-2024)
    3,066
    Market Cap (Jan-05-2024)
    4.708 Billion USD
    World Rank (Jul-30-2023)
    3,117
    Market Cap (Jul-30-2023)
    4.733 Billion USD
    World Rank (Dec-25-2022)
    3,721
    Market Cap (Dec-25-2022)
    3.412 Billion USD
    World Rank (Jan-07-2022)
    4,086
    Market Cap (Jan-07-2022)
    3.77 Billion USD
    Annual Revenue in USD
    17,642 Million USD
    Annual Operating Income in USD
    987 Million USD
    Annual Net Income in USD
    799 Million USD
    Annual Results for Period Ending
    Dec-2022 ending year
    Headquarters Country
    Poland
    Yahoo @ Frankfurt
    Company Profile

    PGE Polska Grupa Energetyczna is a Fuel Resources, Power Generation and Electric Power Distribution company. It is having 41,934 employee as on 2019. The headquarters is in Poland.

    Company Website
    PGE POLSKA GRUPA ENERGETYCZNA

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