World Top 100 Electricity Generation Companies List by Market Cap as of August 2026

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

World Largest Electricity Generation Companies in 2026
World Largest Electricity Generation Companies by Market Cap in 2026, World Top Electricity Generation Companies by Market Cap in 2026.

  1. Verbund AG

    World Rank (Aug-2026)
    1,061
    Market Cap (Aug-2026)
    23.917 Billion USD
    World Rank (Jan-05-2024)
    583
    Market Cap (Jan-05-2024)
    31.440 Billion USD
    World Rank (Jul-30-2023)
    668
    Market Cap (Jul-30-2023)
    28.422 Billion USD
    World Rank (Dec-25-2022)
    238
    Market Cap (Dec-25-2022)
    59.287 Billion USD
    World Rank (Jan-07-2022)
    332
    Market Cap (Jan-07-2022)
    55.64 Billion USD
    Annual Revenue in USD
    11,407 Million USD
    Annual Operating Income in USD
    2,007 Million USD
    Annual Net Income in USD
    1,893 Million USD
    Annual Results for Period Ending
    Dec-2022 ending year
    Headquarters Country
    Austria
    CEO
    Michael Strugl
    Stock Category
    S&P EUROPE 350
    Yahoo @ Austria
    Company Profile

    VERBUND is Austria's electricity company and one of the largest producers of electricity from hydropower in Europe. Close to 100% of their electricity generation comes from climate friendly, renewable hydropower. Headquarters is in in Vienna, Austria

    Company Website
    VERBUND AG
    Wikipedia
    Wikipedia

  2. Hydro One

    World Rank (Aug-2026)
    1,094
    Market Cap (Aug-2026)
    23.235 Billion USD
    World Rank (Jan-05-2024)
    1,009
    Market Cap (Jan-05-2024)
    17.724 Billion USD
    World Rank (Jul-30-2023)
    1,093
    Market Cap (Jul-30-2023)
    16.779 Billion USD
    World Rank (Dec-25-2022)
    1,024
    Market Cap (Dec-25-2022)
    16.141 Billion USD
    World Rank (Jan-07-2022)
    1,336
    Market Cap (Jan-07-2022)
    15.14 Billion USD
    Annual Revenue in USD
    5,872 Million USD
    Annual Operating Income in USD
    1,510 Million USD
    Annual Net Income in USD
    793 Million USD
    Annual Results for Period Ending
    Dec-2022 ending year
    Headquarters Country
    Canada
    CEO
    Mark Poweska
    Stock Category
    TSX 60
    Yahoo @ Toronto
    Company Profile

    Hydro One Limited is Ontario’s largest electricity transmission and distribution provider with approximately 1.4 million valued customers. Headquarters is in Canada.

    They have annual revenues 7,780 million CAD in 2022.

    Hydro One invested approximately 1.7 billion CAD in its transmission and distribution networks.

    Facts About Company

    For year ending Dec-2022, Hydro One Limited annual revenue was 7,780 million CAD and annual net income was 1,050 million CAD.

    For year ending Dec-2021, Hydro One Limited annual revenue was 7,225 million CAD and annual net income was 965 million CAD.

    As on 2021, Hydro One Limited had 8,085 employees.

    Company Website
    Hydro One - Electricity Utility Company
    Wikipedia
    Wikipedia

  3. CMS Energy Corporation

    World Rank (Aug-2026)
    1,129
    Market Cap (Aug-2026)
    22.298 Billion USD
    World Rank (Jan-05-2024)
    1,037
    Market Cap (Jan-05-2024)
    17.325 Billion USD
    World Rank (Jul-30-2023)
    1,020
    Market Cap (Jul-30-2023)
    17.797 Billion USD
    World Rank (Dec-25-2022)
    892
    Market Cap (Dec-25-2022)
    18.466 Billion USD
    World Rank (Jan-07-2022)
    1,095
    Market Cap (Jan-07-2022)
    18.85 Billion USD
    Annual Revenue in USD
    8,305 Million USD
    Annual Operating Income in USD
    1,727 Million USD
    Annual Net Income in USD
    1,071 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    CEO
    Garrick J. Rochow
    Stock Category
    S&P 500
    Yahoo @ NYSE
    Company Profile

    CMS ENERGY CORPORATION is Electricity utility and gas utility company with headquarters is in Michigan, USA.Consumers Energy is one of the nation’s largest combination electric and natural gas utilities.CMS Enterprises owns and operates independent power generating plants, natural gas assets.CMS Enterprises Company also engaged in independent power generation in several states.

    CMS Energy total number of employees in 2022 was 9,073.

    Company Website
    CMS ENERGY CORPORATION
    Wikipedia
    Wikipedia

  4. Centrais Eletricas Brasileiras - Eletrobras

    World Rank (Aug-2026)
    1,149
    Market Cap (Aug-2026)
    21.950 Billion USD
    World Rank (Jan-05-2024)
    946
    Market Cap (Jan-05-2024)
    19.196 Billion USD
    World Rank (Jul-30-2023)
    988
    Market Cap (Jul-30-2023)
    18.457 Billion USD
    World Rank (Dec-25-2022)
    864
    Market Cap (Dec-25-2022)
    19.376 Billion USD
    World Rank (Jan-07-2022)
    2,141
    Market Cap (Jan-07-2022)
    8.46 Billion USD
    Annual Revenue in USD
    7,203 Million USD
    Annual Operating Income in USD
    970 Million USD
    Annual Net Income in USD
    769 Million USD
    Annual Results for Period Ending
    Dec-2022 ending year
    Headquarters Country
    Brazil
    Yahoo @ NYSE
    Company Profile

    Centrais Eletricas Brasileiras is a power generation company. The Company operates in the generation, transmission, distribution and trading segments. The Company plans, finances, coordinates, and supervises expansion projects for its subsidiaries. The headquarters is in Brazil.

    Company Website
    CENTRAIS ELECTRICAS BRASILEIRAS S.A.- ELETROBRAS
    Wikipedia
    Wikipedia

  5. Uniper SE

    World Rank (Aug-2026)
    1,176
    Market Cap (Aug-2026)
    21.427 Billion USD
    World Rank (Jan-05-2024)
    693
    Market Cap (Jan-05-2024)
    26.704 Billion USD
    World Rank (Jul-30-2023)
    284
    Market Cap (Jul-30-2023)
    59.547 Billion USD
    World Rank (Dec-25-2022)
    7,806
    Market Cap (Dec-25-2022)
    1.128 Billion USD
    World Rank (Jan-07-2022)
    1,201
    Market Cap (Jan-07-2022)
    16.89 Billion USD
    Annual Revenue in USD
    302,230 Million USD
    Annual Operating Income in USD
    -7,005 Million USD
    Annual Net Income in USD
    -20,925 Million USD
    Annual Results for Period Ending
    Dec-2022 ending year
    Headquarters Country
    Germany
    CEO
    Klaus-Dieter Maubach
    Yahoo @ Germany
    Company Profile

    Uniper Se is a Electricity generation, electricity distribution, gas distribution company with headquarters is in Germany.

    Facts About Company

    Uniper Se annual revenue was 274,120 Million EUR and annual net income was -18,979 (Loss) Million EUR for year ending Dec-2022.

    Uniper Se annual revenue was 163,978 Million EUR and annual net income was -4,169 (Loss) Million EUR for year ending Dec-2021.

    Uniper Se had 11,644 employees as on 2020.

    Company Website
    UNIPER SE NA.
    Wikipedia
    Wikipedia

  6. Fortum Oyj

    World Rank (Aug-2026)
    1,197
    Market Cap (Aug-2026)
    20.923 Billion USD
    World Rank (Jan-05-2024)
    1,300
    Market Cap (Jan-05-2024)
    13.398 Billion USD
    World Rank (Jul-30-2023)
    1,439
    Market Cap (Jul-30-2023)
    12.059 Billion USD
    World Rank (Dec-25-2022)
    1,074
    Market Cap (Dec-25-2022)
    15.244 Billion USD
    World Rank (Jan-07-2022)
    805
    Market Cap (Jan-07-2022)
    26.20 Billion USD
    Annual Revenue in USD
    9,707 Million USD
    Annual Operating Income in USD
    2,311 Million USD
    Annual Net Income in USD
    -2,664 Million USD
    Annual Results for Period Ending
    Dec-2022 ending year
    Headquarters Country
    Finland
    CEO
    Markus Rauramo
    Stock Category
    S&P EUROPE 350
    Yahoo @ Frankfurt
    Company Profile
    Fortum generates and distributes electricity. Electric Utility company. Headquarters is in Finland.
    Company Website
    FORTUM OYJ
    Wikipedia
    Wikipedia

  7. EDP - Energias de Portugal

    World Rank (Aug-2026)
    1,219
    Market Cap (Aug-2026)
    20.504 Billion USD
    World Rank (Jan-05-2024)
    883
    Market Cap (Jan-05-2024)
    20.728 Billion USD
    World Rank (Jul-30-2023)
    880
    Market Cap (Jul-30-2023)
    21.080 Billion USD
    World Rank (Dec-25-2022)
    837
    Market Cap (Dec-25-2022)
    19.796 Billion USD
    World Rank (Jan-07-2022)
    1,017
    Market Cap (Jan-07-2022)
    20.44 Billion USD
    Annual Revenue in USD
    22,768 Million USD
    Annual Operating Income in USD
    1,622 Million USD
    Annual Net Income in USD
    749 Million USD
    Annual Results for Period Ending
    Dec-2022 ending year
    Headquarters Country
    Portugal
    CEO
    Joao Manuel Brito Martins
    Stock Category
    EURONEXT 100
    S&P EUROPE 350
    Yahoo @ Lisbon
    Company Profile

    EDP is a Electric Utility company with headquarters is in Portugal. It is being present in 20 countries and 4 continents.

    Company Website
    EDP
    Wikipedia
    Wikipedia

  8. NiSource

    World Rank (Aug-2026)
    1,225
    Market Cap (Aug-2026)
    20.381 Billion USD
    World Rank (Jan-05-2024)
    1,513
    Market Cap (Jan-05-2024)
    11.117 Billion USD
    World Rank (Jul-30-2023)
    1,506
    Market Cap (Jul-30-2023)
    11.462 Billion USD
    World Rank (Dec-25-2022)
    1,390
    Market Cap (Dec-25-2022)
    11.254 Billion USD
    World Rank (Jan-07-2022)
    1,755
    Market Cap (Jan-07-2022)
    10.95 Billion USD
    Annual Revenue in USD
    6,523 Million USD
    Annual Operating Income in USD
    1,835 Million USD
    Annual Net Income in USD
    930 Million USD
    Annual Results for Period Ending
    For year ending December-2025
    Headquarters Country
    USA
    Stock Category
    S&P 500
    Yahoo @ NYSE
    Company Profile

    Natural gas utility and electric utility company with headquarters is in Indiana, USA.

    Company Website
    NISOURCE INC
    Wikipedia
    Wikipedia

  9. Galp Energia Sgps

    World Rank (Aug-2026)
    1,240
    Market Cap (Aug-2026)
    20.006 Billion USD
    World Rank (Jan-05-2024)
    1,441
    Market Cap (Jan-05-2024)
    11.878 Billion USD
    World Rank (Jul-30-2023)
    1,723
    Market Cap (Jul-30-2023)
    9.669 Billion USD
    World Rank (Dec-25-2022)
    1,419
    Market Cap (Dec-25-2022)
    11.036 Billion USD
    World Rank (Jan-07-2022)
    2,080
    Market Cap (Jan-07-2022)
    8.81 Billion USD
    Annual Revenue in USD
    29,591 Million USD
    Annual Operating Income in USD
    2,645 Million USD
    Annual Net Income in USD
    1,626 Million USD
    Annual Results for Period Ending
    Dec-2022 ending year
    Headquarters Country
    Portugal
    Stock Category
    EURONEXT 100
    S&P EUROPE 350
    Yahoo @ Lisbon
    Company Profile
    GALP ENERGIA SGPS is a Portugal based holding company engaged in the oil and gas industry, transport, storage, regasification, distribution. The products of the company are oil and gas exploration and production, natural gas transportation and distribution, oil refining, electricity generation. Activities are divided into three business segments: exploration and production; refining and marketing, and gas and power. The headquarters is in Portugal. 
    Company Website
    GALP ENERGIA-NOM
    Wikipedia
    Wikipedia

  10. China Longyuan Power Group Corporation

    World Rank (Aug-2026)
    1,269
    Market Cap (Aug-2026)
    19.453 Billion USD
    World Rank (Jan-05-2024)
    1,074
    Market Cap (Jan-05-2024)
    16.613 Billion USD
    World Rank (Jul-30-2023)
    1,056
    Market Cap (Jul-30-2023)
    17.356 Billion USD
    World Rank (Dec-25-2022)
    1,030
    Market Cap (Dec-25-2022)
    16.078 Billion USD
    World Rank (Jan-07-2022)
    1,249
    Market Cap (Jan-07-2022)
    16.28 Billion USD
    Annual Revenue in USD
    5,577 Million USD
    Annual Operating Income in USD
    1,951 Million USD
    Annual Net Income in USD
    715 Million USD
    Annual Results for Period Ending
    Dec-2022 ending year
    Headquarters Country
    China
    Yahoo @ HongKong
    Company Profile
    Wind Power producing company with headquarters is in Beijing, China.
    Company Website
    CHINA LONGYUAN
    Wikipedia
    Wikipedia

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