List of companies of Thailand

This is a list of notable companies based in Thailand, grouped by their Industry Classification Benchmark sector. For further information on the types of business entities in this country and their abbreviations, see "Business entities in Thailand".

Largest companies

1 PTT Oil & Gas US$81.5 billion
2 Charoen Pokphand Conglomerates US$46.5 billion
3 Siam Cement Group Conglomerates US$14.3 billion
4 Thai Oil Oil & Gas US$11 billion
5 IRPC Petrochemicals US$8.1 billion
6 Central Group Retail, Hospitality US$7.5 billion
7 Indorama Ventures Petrochemicals US$6.9 billion
8 Kasikornbank Banking, Financial services US$6.5 billion
9 Thai Airways Aviation US$5.8 billion
10 Thai Beverage Beverage US$4.7 billion
11 Siam Commercial Bank Banking, Financial services US$4.7 billion
12 Advanced Info Service Telecommunications US$4.2 billion
13 Krung Thai Bank Banking, Financial services US$3.9 billion
14 Bangkok Bank Banking, Financial services US$3.9 billion
15 True Corporation Telecommunications US$3.5 billion
16 Thai Union Group Food US$3.4 billion
17 Banpu Energy US$3 billion
18 Bank of Ayudhya Banking, Financial services US$2.7 billion
19 Thai Life Insurance Insurance US$2 billion
20 Thai Summit Group Manufacturing US$2 billion
21 King Power Retail US$1.9 billion
22 Sahaviriya Steel Industries Steel US$1.8 billion
23 Bangkok Dusit Medical Services Health care US$1.6 billion
24 Mitr Phol Group Food processing US$1.5 billion
25 Samart Group Consumer electronics US$1.2 billion

Basic materials


Consumer goods


Food & beverage

Personal & household goods


Health care



Oil & gas




Travel & leisure


Defunct companies

See also

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