Thailand Top Companies List by Market Cap in August 2026

Delta Electronics (Thailand) Public Company Limited manufacturing electronic components, i.e. cooling fan, electromagnetic interference filter (EMI) and solenoid. Their current power management products include power systems for information technology, automotive, telecommunications, industrial applications, office automation, medical industries, EV chargers, DC-DC converters and adapters. Delta Thailand has also been aggressively growing their solution businesses in EV chargers, industrial automation, data center infrastructure and energy management in the region.

Delta Electronics (Thailand) Public Company Limited is a subsidiary of Delta Electronics, Inc. Headquarters is in Thailand.

Oil and Gas company with headquarters is in Thailand.

AIS is telecom company with headquarters is in Thailand. They provide telecom services like mobile networking operation services, broadband internet services, digital services.

AIRPORTS OF THAILAND is Thailand based company with business in Managing International Airports in Thailand.

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.

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.

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.

The Bank provides a full range of financial services, including corporate and personal lending, retail and wholesale banking, foreign currency operations, international trade financing, cash management, custodial services, credit and charge card services and investment banking services, through its head office and its extensive branch network.

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

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.

Bangkok Bank Public Company is a Commercial Banking company. It is a regional banks with total assets of 3,216,743 million baht, with approximately 240 business centers and business desks and also have the countries largest retail customer base of more than 17 million accounts. The headquarters is in Thailand.

Bangkok Bank Public Company has 1,165 branches and 9,300 ATMs as on 2019.

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.

Thai Beverage is alcoholic beverages company with headquarters is in Thailand.

Bank of Ayudhya Public Company is a Banking Holding company. The Bank is currently the fifth largest bank in Thailand in terms of loans and deposits. It provides a full range of banking services to both commercial and individual customers. The headquarters is in Thailand.

Bank of Ayudhya Public Company has more than 550 branches as on 2019.

TMBThanachart Bank Public Company Limited is an investment business and financial services company.

The headquarters is in Thailand.

As on Dec-2021, TMBThanachart Bank Public Company Limited had 636 branches; 3,043 ATMs; and 598 CDMs.

TMB Bank Public Company is a Banking and Financial Services company.

The headquarters is in Thailand.

As on Jun-2021, TMB Bank Public Company has 90 branches and 123 ATMs and 15 CRMs.