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Executive Roundtable

Thailand’s Largest Companies by market capitalization, 2024

As of February 19, 2025, DELTA ELECTRONICS (THAILAND) is the most valuable company in Thailand, with a market cap of $28.85 billion. Following it are PTT ($26.77 billion) and ADVANCED INFO SERVICE ($26.01 billion).

Which one is the most valuable in Thailand by market cap? This list comprises the biggest companies currently in Thailand by market cap in 2024:

Thailand’s Largest Companies by market capitalization, 2024

RANKCOMPANYMARKET CAPITAL (USD DOLLAR)
1DELTA ELECTRONICS (THAILAND)$28.85 billion
2PTT$26.77 billion
3ADVANCED INFO SERVICE$26.01 billion
4GULF ENERGY DEVELOPMENT$20.24 billion
5AIRPORTS OF THAILAND$18.49 billion
6PTT EXPLORATION AND PRODUCTION$15.06 billion
7CP ALL$13.83 billion
8TRUE CORPORATION$12.95 billion
9THE SIAM COMMERCIAL BANK$12.57 billion
10KASIKORNBANK$11.45 billion
11BANGKOK DUSIT MEDICAL SERVICES$11.06 billion
12KRUNG THAI BANK$9.9 billion
13INTOUCH HOLDINGS$9.47 billion
14BANGKOK BANK$8.86 billion
15CP AXTRGDS$8.53 billion
16CENTRAL PATTANA$6.98 billion
17CENTRAL RETAIL CORPORATION$6.46 billion
18TMBTHANACHART BANK$5.77 billion
19CHAROEN POKPHAND FOODS$5.49 billion
20THE SIAM CEMENT$5.3 billion
21BANK OF AYUDHYA$5.05 billion
22MINOR INTERNATIONAL$4.68 billion
23PTT OIL AND RETAIL BUSINESS$4.39 billion
24BUMRUNGRAD HOSPITAL$4.41 billion
25KRUNGTHAI CARD$3.95 billion
26INDORAMA VENTURES$3.76 billion
27THAI LIFE INSURANCE$3.85 billion
28GLOW ENERGY PUBLIC COMPANY LIMITED$3.72 billion
29HOME PRODUCT CENTER$3.38 billion
30MUANGTHAI CAPITAL$2.98 billion

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Frank Brown, D.Litt.
Frank Brown, D.Litt. in Public Affairs and Media Strategy, is the Global Managing Editor at CEOWORLD Magazine, where he crafts and oversees editorial strategies focused on financial leadership, brand reputation, and global market insights. Originally from Madrid, Frank brings over a decade of experience in business journalism and strategic communication.

Before CEOWORLD, he worked as a financial correspondent in Europe and Latin America, later transitioning into public affairs consulting for Fortune 500 companies. Frank is known for his ability to distill complex financial concepts into accessible, high-impact stories that inform decision-makers and shape executive narratives. His work at CEOWORLD includes deep-dive market analyses, CEO interviews, and features on evolving investor relations strategies. He leads a multilingual editorial team and contributes to content in both English and Spanish.

Frank holds degrees in International Finance and Strategic Communications, and he frequently speaks at global forums on reputation management, stakeholder communication, and financial media ethics. Passionate about bridging finance and storytelling, Frank believes that clear communication is essential for business growth and trust. At CEOWORLD, his mission is to help global leaders navigate business uncertainty with insight, transparency, and confidence.

Email Frank Brown at frank@ceoworld.biz