Thailand Top Companies List by Market Cap as of August 2026

Thailand Top Companies List by Market Cap as of August 2026, Thailand Biggest 500 Companies List by Market Cap, Thailand Largest 500 Companies List by market cap as of August 2026.
Thailand Stock Exchange Top Companies List by Market Cap
Thailand Stock Exchange Top Companies List by Market Cap as of August 2026, Thailand Stock Exchange Largest Companies List by Market Cap as of August 2026.

  1. PTT Public Company

    World Rank (Aug-2026)
    741
    Market Cap (Aug-2026)
    35.679 Billion USD
    World Rank (Jan-05-2024)
    634
    Market Cap (Jan-05-2024)
    29.082 Billion USD
    World Rank (Jul-30-2023)
    654
    Market Cap (Jul-30-2023)
    28.975 Billion USD
    World Rank (Dec-25-2022)
    658
    Market Cap (Dec-25-2022)
    25.850 Billion USD
    World Rank (Jan-07-2022)
    633
    Market Cap (Jan-07-2022)
    32.88 Billion USD
    Annual Revenue in USD
    98,297 Million USD
    Annual Operating Income in USD
    8,429 Million USD
    Annual Net Income in USD
    2,668 Million USD
    Annual Results for Period Ending
    Dec-2022 ending year
    Headquarters Country
    Thailand
    CEO
    Auttapol Rerkpiboon
    Stock Category
    Thailand ADRs
    Yahoo @ Thailand
    Company Profile

    Oil and Gas company with headquarters is in Thailand.

    Company Website
    PTT Public Company Limited
    Wikipedia
    Wikipedia

  2. Gulf Energy Development Public Company

    World Rank (Aug-2026)
    881
    Market Cap (Aug-2026)
    29.242 Billion USD
    World Rank (Jan-05-2024)
    1,178
    Market Cap (Jan-05-2024)
    15.059 Billion USD
    World Rank (Jul-30-2023)
    1,068
    Market Cap (Jul-30-2023)
    17.126 Billion USD
    World Rank (Dec-25-2022)
    928
    Market Cap (Dec-25-2022)
    17.951 Billion USD
    World Rank (Jan-07-2022)
    1,260
    Market Cap (Jan-07-2022)
    16.12 Billion USD
    Annual Revenue in USD
    2,748 Million USD
    Annual Operating Income in USD
    499 Million USD
    Annual Net Income in USD
    333 Million USD
    Annual Results for Period Ending
    Dec-2022 ending year
    Headquarters Country
    Thailand
    CEO
    Sarath Ratanavadi
    Yahoo @ Thailand
    Company Profile
    Gulf Energy Development Public company is a Energy Producers company. It's portfolio of electricity, steam and chilled water generating projects and other related business. It operate and develop a total gross installed power capacity of 11,910 MW. The company sell electricity to the electricity generating authority of Thailand and industrial users in industrial estates through independent power producer and small power producers programs and sell electricity to the provincial electricity authority through very small power producers program. The headquarters is in Thailand.
    Company Website
    GULF ENERGY DEVELOPMENT PUBLIC COMPANY

  3. PTT Exploration and Production Public Company

    World Rank (Aug-2026)
    1,348
    Market Cap (Aug-2026)
    18.172 Billion USD
    World Rank (Jan-05-2024)
    1,039
    Market Cap (Jan-05-2024)
    17.250 Billion USD
    World Rank (Jul-30-2023)
    985
    Market Cap (Jul-30-2023)
    18.485 Billion USD
    World Rank (Dec-25-2022)
    854
    Market Cap (Dec-25-2022)
    19.561 Billion USD
    World Rank (Jan-07-2022)
    1,381
    Market Cap (Jan-07-2022)
    14.62 Billion USD
    Annual Revenue in USD
    9,429 Million USD
    Annual Operating Income in USD
    4,610 Million USD
    Annual Net Income in USD
    2,027 Million USD
    Annual Results for Period Ending
    Dec-2022 ending year
    Headquarters Country
    Thailand
    CEO
    Phongsthorn Thavisin
    Stock Category
    Thailand ADRs
    Yahoo @ Thailand
    Company Profile

    PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY is a national petroleum exploration and production company. The company operates three business segments: Oil and gas exploration and production, overseas pipelines and investment in projects strategically connected to the energy business. It is a subsidiary of the state owned PTT public company limited. The headquarters is in Thailand.

    Company Website
    PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY
    Wikipedia
    Wikipedia

  4. Kasikornbank Public Company

    World Rank (Aug-2026)
    1,374
    Market Cap (Aug-2026)
    17.831 Billion USD
    World Rank (Jan-05-2024)
    1,769
    Market Cap (Jan-05-2024)
    9.242 Billion USD
    World Rank (Jul-30-2023)
    1,868
    Market Cap (Jul-30-2023)
    8.786 Billion USD
    World Rank (Dec-25-2022)
    1,560
    Market Cap (Dec-25-2022)
    9.802 Billion USD
    World Rank (Jan-07-2022)
    1,880
    Market Cap (Jan-07-2022)
    10.03 Billion USD
    Annual Revenue in USD
    5,070 Million USD
    Annual Operating Income in USD
    1,360 Million USD
    Annual Net Income in USD
    1,044 Million USD
    Annual Results for Period Ending
    Dec-2022 ending year
    Headquarters Country
    Thailand
    Stock Category
    Thailand ADRs
    Yahoo @ Thailand
    Company Profile

    KASIKORNBANK PUBLIC COMPANY is banking and financial services company with headquarters is in Thailand.

    KASIKORNBANK PUBLIC COMPANY has 887 branches and 8,184 ATMs.

    As on Dec-2021, KASIKORNBANK PUBLIC COMPANY has 839 branches and 10,911 self-service.

    Company Website
    Kasikornbank
    Wikipedia
    Wikipedia

  5. Siam Commercial Bank Public Company

    World Rank (Aug-2026)
    1,545
    Market Cap (Aug-2026)
    15.429 Billion USD
    World Rank (Jan-05-2024)
    1,610
    Market Cap (Jan-05-2024)
    10.285 Billion USD
    World Rank (Jul-30-2023)
    1,575
    Market Cap (Jul-30-2023)
    10.911 Billion USD
    World Rank (Dec-25-2022)
    1,517
    Market Cap (Dec-25-2022)
    10.158 Billion USD
    World Rank (Jan-07-2022)
    1,568
    Market Cap (Jan-07-2022)
    12.57 Billion USD
    Annual Revenue in USD
    3,497 Million USD
    Annual Operating Income in USD
    1,471 Million USD
    Annual Net Income in USD
    1,089 Million USD
    Annual Results for Period Ending
    Dec-2022 ending year
    Headquarters Country
    Thailand
    Yahoo @ Thailand
    Company Profile

    SIAM COMMERCIAL BANK PUBLIC COMPANY limited provides a full range of banking and financial services. Its products and services cover investment banking and corporate management, commercial banking solutions, retail banking and small and medium enterprise solutions, wealth products mortgage products. The headquarters is in Thailand.

    Facts About Company

    As of December 31, 2020 the Bank had, on a consolidated basis, Baht 3,278 billion in total assets, Baht 2,420 billion in deposits and Baht 2,255 billion in loans.

    Company Website
    Siam Commercial Bank Public Company Limited
    Wikipedia
    Wikipedia

  6. True Corporation Public Company

    World Rank (Aug-2026)
    1,652
    Market Cap (Aug-2026)
    14.260 Billion USD
    World Rank (Jan-05-2024)
    2,851
    Market Cap (Jan-05-2024)
    5.153 Billion USD
    World Rank (Jul-30-2023)
    2,179
    Market Cap (Jul-30-2023)
    7.262 Billion USD
    World Rank (Dec-25-2022)
    2,972
    Market Cap (Dec-25-2022)
    4.522 Billion USD
    World Rank (Jan-07-2022)
    3,520
    Market Cap (Jan-07-2022)
    4.58 Billion USD
    Annual Revenue in USD
    3,943 Million USD
    Annual Operating Income in USD
    65 Million USD
    Annual Net Income in USD
    -534 Million USD
    Annual Results for Period Ending
    Dec-2022 ending year
    Headquarters Country
    Thailand
    Yahoo @ Thailand
    Company Profile

    Telecom sector company providing mobile network services, Cable TV services and Internet service with headquarters is in Bangkok, Thailand.

    Company Website
    TRUE CORPORATION PUBLIC COMPANY
    Wikipedia
    Wikipedia

  7. CP All Public Company

    World Rank (Aug-2026)
    1,816
    Market Cap (Aug-2026)
    12.755 Billion USD
    World Rank (Jan-05-2024)
    1,237
    Market Cap (Jan-05-2024)
    14.235 Billion USD
    World Rank (Jul-30-2023)
    1,109
    Market Cap (Jul-30-2023)
    16.455 Billion USD
    World Rank (Dec-25-2022)
    973
    Market Cap (Dec-25-2022)
    17.034 Billion USD
    World Rank (Jan-07-2022)
    1,300
    Market Cap (Jan-07-2022)
    15.54 Billion USD
    Annual Revenue in USD
    24,203 Million USD
    Annual Operating Income in USD
    1,045 Million USD
    Annual Net Income in USD
    365 Million USD
    Annual Results for Period Ending
    Dec-2022 ending year
    Headquarters Country
    Thailand
    CEO
    Tanin Buranamanit
    Stock Category
    Thailand ADRs
    Yahoo @ Thailand
    Company Profile

    CP All operates chain of convenience stores across Thailand. Headquarters is in Bangkok, Thailand.

    The Company is the sole operator of 7-Eleven convenience stores.

    As on 2021, CP ALL PUBLIC COMPANY has 970 retail stores.

    Company Website
    CP ALL
    Wikipedia
    Wikipedia

  8. Bangkok Dusit Medical Services Public Company

    World Rank (Aug-2026)
    2,299
    Market Cap (Aug-2026)
    9.404 Billion USD
    World Rank (Jan-05-2024)
    1,382
    Market Cap (Jan-05-2024)
    12.534 Billion USD
    World Rank (Jul-30-2023)
    1,316
    Market Cap (Jul-30-2023)
    13.338 Billion USD
    World Rank (Dec-25-2022)
    1,223
    Market Cap (Dec-25-2022)
    13.013 Billion USD
    World Rank (Jan-07-2022)
    1,785
    Market Cap (Jan-07-2022)
    10.67 Billion USD
    Annual Revenue in USD
    2,684 Million USD
    Annual Operating Income in USD
    496 Million USD
    Annual Net Income in USD
    368 Million USD
    Annual Results for Period Ending
    Dec-2022 ending year
    Headquarters Country
    Thailand
    Stock Category
    Thailand ADRs
    Yahoo @ Thailand
    Company Profile
    BANGKOK DUSIT MEDICAL SERVICES PUBLIC COMPANY is engaged in private health care group. The hospital specializes in cardiovascular, lung, neurological, eye and genitourinary cancer, as well as physical therapy and medical imaging. The headquarters is in Thailand. 
    Company Website
    BANGKOK DUSIT MEDICAL SERVICES PUBLIC COMPANY
    Wikipedia
    Wikipedia

  9. Siam Cement Public Company

    World Rank (Aug-2026)
    2,339
    Market Cap (Aug-2026)
    9.249 Billion USD
    World Rank (Jan-05-2024)
    1,601
    Market Cap (Jan-05-2024)
    10.325 Billion USD
    World Rank (Jul-30-2023)
    1,527
    Market Cap (Jul-30-2023)
    11.280 Billion USD
    World Rank (Dec-25-2022)
    1,369
    Market Cap (Dec-25-2022)
    11.515 Billion USD
    World Rank (Jan-07-2022)
    1,480
    Market Cap (Jan-07-2022)
    13.54 Billion USD
    Annual Revenue in USD
    16,628 Million USD
    Annual Operating Income in USD
    190 Million USD
    Annual Net Income in USD
    624 Million USD
    Annual Results for Period Ending
    Dec-2022 ending year
    Headquarters Country
    Thailand
    CEO
    Roongrote Rangsiyopash
    Stock Category
    Thailand ADRs
    Yahoo @ Thailand
    Company Profile

    Siam Cement Company is cement manufacturing company with headquarters is in Thailand. Other business of this company include Chemicals Business, Packaging Business and Investments Business.

    Company Website
    Siam Cement Public Company Limited
    Wikipedia
    Wikipedia

  10. Central Pattana Public Company

    World Rank (Aug-2026)
    2,376
    Market Cap (Aug-2026)
    9.035 Billion USD
    World Rank (Jan-05-2024)
    1,875
    Market Cap (Jan-05-2024)
    8.624 Billion USD
    World Rank (Jul-30-2023)
    1,878
    Market Cap (Jul-30-2023)
    8.744 Billion USD
    World Rank (Dec-25-2022)
    1,679
    Market Cap (Dec-25-2022)
    8.959 Billion USD
    World Rank (Jan-07-2022)
    2,515
    Market Cap (Jan-07-2022)
    7.00 Billion USD
    Annual Revenue in USD
    1,038 Million USD
    Annual Operating Income in USD
    319 Million USD
    Annual Net Income in USD
    314 Million USD
    Annual Results for Period Ending
    Dec-2022 ending year
    Headquarters Country
    Thailand
    Yahoo @ Thailand
    Company Profile
    Central Pattana Public Company is a Property Developer company. The Company owns and manages 32 premium shopping centers, 7 office buildings, 2 Hotels and 4 residential buildings, with a total leasable area exceeding 1.7 million sq.m. The headquarters is in Thailand.
    Company Website
    CENTRAL PATTANA PUBLIC COMPANY

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