List of companies of Thailand
is a country at the centre of the Indochinese peninsula in Southeast Asia. The Thai economy is the world's 20th largest by GDP at PPP and the 27th largest by nominal GDP. It became a newly industrialised country and a major exporter in the 1990s. Manufacturing, agriculture, and tourism are leading sectors of the economy. The economy is heavily export-dependent, with exports accounting for more than two-thirds of gross domestic product. Thailand exports over US$105 billion worth of goods and services annually.
Substantial industries include electric appliances, components, computer components, and vehicles. Thailand's recovery from the 1997–1998 Asian financial crisis depended mainly on exports, among various other factors., the Thai automotive industry was the largest in Southeast Asia and the 9th largest in the world. The Thailand industry has an annual output of near 1.5 million vehicles, mostly commercial vehicles.
For further information on the types of business entities in this country and their abbreviations, see "Business entities in Thailand".
Largest firms
This list shows firms in the Fortune Global 500, which ranks firms by total revenues reported before 31 March 2017. Only the top five firms are included as a sample.| Rank | Image | Name | 2016 revenues | Employees | Notes |
| 192 | PTT Public Company Limited | 48,719 | 24,934 | State-owned oil and gas conglomerate providing exploration, refining, power generation and gasoline retailing. Subsidiaries include PTT Exploration and Production, PTT Global Chemical, Thai Oil, IRPC and Cove Energy plc. |
Notable firms
This list includes companies with headquarters in Thailand. The industry and sector follow the Industry Classification Benchmark taxonomy. Organizations which have ceased operations are included and noted as defunct.| Name | Industry | Sector | Headquarters | Founded | Notes |
| 108 Shop | Consumer services | Retail | Bangkok | 2004 | Convenience store chain |
| 2Spot Communications | Consumer services | Media | Bangkok | 2004 | Animation character design |
| 3K Battery | Industrials | General industries | Bangkok | 1986 | Motor vehicle batteries, defunct 2017 |
| Advanced Info Service | Telecommunications | Mobile telecommunications | Bangkok | 1986 | Mobile phone service provider |
| Air Andaman | Consumer services | Travel & leisure | Bangkok | 2000 | Airline, defunct 2004 |
| Air People International | Industrials | Industrial transportation | Bangkok | 1986 | Cargo airline |
| Airports of Thailand PCL | Industrials | Industrial transportation | Bangkok | 1979 | Airports operator |
| Angel Air | Consumer services | Travel & leisure | Bangkok | 1998 | Airline, defunct 2003 |
| Areeya Property | Financials | Real estate | Bangkok | 2000 | Real estate development |
| AsiaSoft | Technology | Software | Bangkok | 2001 | Video games |
| AutoAlliance Thailand | Consumer goods | Automobiles | UNKNOWN | 1995 | Automotive assembly |
| B.Grimm | Conglomerates | - | Bangkok | 1878 | Energy, Cooling, Healthcare, Real Estate, Internet |
| Bangkok Airways | Consumer services | Travel & leisure | Bangkok | 1968 | Aviation |
| Bangkok Bank | Financials | Banks | Bangkok | 1944 | Banking, financial services |
| Bangkok Dock Company | Industrials | Industrial transportation | Bangkok | 1957 | Shipbuilding |
| Bangkok Hospital | Health care | Health care providers | Bangkok | 1972 | Hospital |
| Bangkok Insurance | Financials | Insurance | Bangkok | 1947 | Insurance |
| Bangkok Land | Financials | Real estate | Bangkok | 1973 | Property holding |
| Bangkok Post | Consumer services | Media | Bangkok | 1946 | Newspaper |
| Bank of Ayudhya | Financials | Banks | Bangkok | 1945 | Banking, financial services |
| Banpu | Utilities | Electricity | Bangkok | 1983 | Electric utility |
| BEC-TERO | Consumer services | Media | Bangkok | 1998 | Entertainment, concerts |
| Benetone Films | Consumer services | Media | Bangkok | 2002 | Film production |
| Berli Jucker | Consumer services | Retail | Bangkok | 1882 | Retail, distribution, import/export |
| Besins Healthcare | Health care | Pharmaceuticals | Bangkok | 1885 | Pharmaceuticals |
| Big C | Consumer services | Retail | Bangkok | 1993 | Grocery and general retail |
| Bongkoch Publishing | Consumer services | Media | Bangkok | 2003 | Publishing |
| Boon Rawd Brewery | Consumer goods | Food & beverage | Bangkok | 1933 | Brewery, soft drinks |
| BTS Group Holdings | Industrials | Industrial transportation | Bangkok | 1968 | Mass transportation |
| Bumrungrad International Hospital | Health care | Health care providers | Bangkok | 1980 | Hospital |
| CAT Telecom | Telecommunications | Fixed line telecommunications | Bangkok | 2003 | State-owned telecom |
| CDG Group | Technology | Computer hardware | Bangkok | 1968 | Information technology, peripherals |
| Central Group | Conglomerates | - | Bangkok | 1947 | Retail, hotels, property development |
| Central Pattana | Consumer services | Retail | Bangkok | 1980 | Retail, part of Central Group |
| Chaiseri | Industrials | Defense | Bangkok | 1939 | Military vehicles, arms |
| Channel 7 | Consumer services | Media | Bangkok | 1967 | Broadcasting |
| Charoen Pokphand Foods | Consumer goods | Food & beverage | Bangkok | 1978 | Agribusiness, part of Charoen Pokphand |
| Charoen Pokphand | Conglomerates | - | Bangkok | 1921 | Retail, agribusiness, telecommunications |
| Christiani & Nielsen | Industrials | Construction & materials | Bangkok | 1904 | Construction |
| Chue Chin Hua | Consumer goods | Household goods | Phra Pradaeng | 1936 | Cookware |
| Coca Steamboat | Consumer services | Restaurants & bars | Bangkok | 1957 | Restaurant chain |
| CP All | Consumer services | Retail | Bangkok | 1988 | Retail, part of Charoen Pokphand |
| CTH | Telecommunications | Fixed line telecommunications | Bangkok | 2009 | Cable broadband, defunct 2016 |
| Daily News | Consumer services | Media | Bangkok | 1964 | Newspaper |
| Deestone Group | Consumer goods | Tires | Samut Sakhon | 1977 | Tires |
| Deves Insurance | Financials | Insurance | Bangkok | 1947 | Insurance |
| Diana Department Store | Consumer services | Retail | Hat Yai | UNKNOWN | Department store chain |
| DTAC | Telecommunications | Mobile telecommunications | Bangkok | 1989 | Telecom, mobile phones |
| Dusit Thani Group | Consumer services | Travel & leisure | Bangkok | 1948 | Hospitality |
| Dutch Mill | Consumer goods | Food & beverage | Bangkok | 1984 | Dairy |
| Electricity Generating Authority of Thailand | Utilities | Electricity | Bangkok | 1969 | Electric utility |
| Ensogo | Technology | Internet | Bangkok | 2010 | Electronic commerce |
| FazWaz | Financials | Real Estate | Bangkok | 2015 | Real Estate PropTech |
| FBT | Consumer goods | Personal goods | Bangkok | 1952 | Sportswear, sport equipment |
| Five Star Production | Consumer services | Media | Bangkok | 1973 | Motion pictures |
| GDH 559 | Consumer services | Media | Bangkok | 2016 | Motion pictures |
| Glow Energy | Utilities | Electricity | Bangkok | 1993 | Electric utility |
| GMM Grammy | Consumer services | Media | Bangkok | 1983 | Media conglomerate |
| Grand Sport Group | Consumer goods | Personal goods | Bangkok | 1961 | Sportswear, sport equipment |
| I-Mobile | Consumer services | Retail | Bangkok | 1995 | Mobile phone retailer, part of Samart Group |
| Index Living Mall | Consumer services | Retail | Bangkok | 2002 | Furniture retailer |
| Indorama Ventures | Consumer goods | Personal goods | Bangkok | 1994 | Polyester, yarn |
| International Engineering Public Company Limited | Industrials | Industrial engineering | Bangkok | 1922 | Engineering |
| Intouch Holdings | Conglomerates | - | Bangkok | 1983 | Media, telecommunications, aviation, advertising, finance |
| Italthai Industrial Group | Industrials | Industrial transportation | Bangkok | 1964 | Construction, shipbuilding |
| Jamsai | Consumer services | Media | Bangkok | 2002 | Publishing |
| Kalara International Properties | Consumer services | Travel & leisure | Ko Samui | 2003 | Tourism-oriented property development |
| Kantana Group | Consumer services | Media | Bangkok | 1951 | Film and television production |
| Karmarts | Consumer goods | Personal goods | Bangkok | 1982 | Cosmetics |
| Kasikornbank | Financials | Banks | Bangkok | 1945 | Banking, financial services |
| Khon Kaen Sugar | Consumer goods | Food & beverage | Bangkok | 1945 | Sugar |
| Kiatnakin Bank | Financials | Banks | Bangkok | 1971 | Banking, financial services |
| King Power | Consumer services | Travel & leisure | Bangkok | 1989 | Travel retail |
| Krung Thai Bank | Financials | Banks | Bangkok | 1966 | State-owned banking |
| Kulthorn Kirby | Industrials | General industries | Bangkok | 1980 | Manufacturing |
| Land and Houses | Financials | Real estate | Bangkok | 1983 | Real estate |
| Lebua Hotels & Resorts | Consumer services | Travel & leisure | Bangkok | 2003 | Hospitality |
| Major Cineplex | Consumer services | Travel & leisure | Bangkok | 1995 | Theater chain |
| MBK Center | Consumer services | Retail | Bangkok | 1985 | Shopping mall |
| MCOT | Consumer services | Media | Bangkok | 1952 | State broadcasting |
| Minor Hotels | Consumer services | Travel & leisure | Bangkok | 1978 | Hotels, part of Minor International |
| Minor International | Conglomerates | - | Bangkok | 1978 | Food, hotels, retailing |
| Mitr Phol | Consumer goods | Food & beverage | Bangkok | 1946 | Sugar |
| Mitsubishi Motors | Consumer goods | Automobiles | Pathum Thani | 1987 | Automobile, part of Mitsubishi Motors |
| Modernform Group | Consumer goods | Personal goods | Bangkok | 1980 | Furniture manufacturer |
| Muang Thai Life Assurance | Financials | Insurance | Bangkok | 1951 | Life insurance |
| Mu Space | Technology | Aerospace | Bangkok | 2017 | Satellite, IoT, space tourism |
| Nation Multimedia Group | Consumer services | Media | Bangkok | 1971 | Media group |
| NBT | Consumer services | Media | Bangkok | 1985 | State broadcasting |
| Nok Air | Consumer services | Travel & leisure | Bangkok | 2004 | Aviation |
| One-Two-GO Airlines | Consumer services | Travel & leisure | Bangkok | 2003 | Low-cost airline, part of Orient Thai Airlines |
| Orient Thai Airlines | Consumer services | Travel & leisure | Bangkok | 1995 | Aviation |
| Osotspa | Consumer goods | Food & beverage | Bangkok | 1891 | Beverage |
| Pace Development | Financials | Real estate | Bangkok | 2004 | Real estate |
| PBair | Consumer services | Travel & leisure | Bangkok | 1990 | Airline, defunct 2009 |
| Phranakorn film | Consumer services | Media | Bangkok | 2001 | Film production |
| Phuket Air | Consumer services | Travel & leisure | Bangkok | 1999 | Aviation |
| Phuket Beer | Consumer goods | Food & beverage | Bangkok | 2002 | Brewery |
| Phyathai Hospitals Group | Health care | Health care providers | Bangkok | 1976 | Hospital group |
| Priceza | Technology | Internet | Bangkok | 2010 | Web services |
| PTT | Oil & gas | Oil & gas producers | Bangkok | 1978 | State petroleum |
| Raimon Land | Financials | Real estate | Bangkok | 1987 | Real estate developer |
| Real United | Consumer goods | Personal goods | Samut Sakhon | 2014 | Sportswear, sport equipment |
| Rose Media and Entertainment | Consumer services | Media | Bangkok | 1986 | Media production |
| Royal Cliff Hotels Group | Consumer services | Travel & leisure | Pattaya | 1973 | Hospitality |
| RS Public Company Limited | Consumer services | Media | Bangkok | 1976 | Media group |
| Sahamongkol Film International | Consumer services | Media | Bangkok | 1970 | Motion pictures |
| Sahaviriya Steel Industries | Basic materials | Basic resources | Bangkok | 1990 | Steel |
| Samart Group | Conglomerates | - | Bangkok | 1955 | Consumer electronics, telecommunications |
| Sansiri | Financials | Real estate | Bangkok | 1984 | Real estate development |
| Seacon Square | Consumer services | Retail | Bangkok | 1994 | Shopping mall |
| SF Group | Consumer services | Travel & leisure | Bangkok | 1999 | Entertainment |
| Siam Cement | Industrials | Construction & materials | Bangkok | 1913 | Cement, packaging, chemicals |
| Siam Commercial Bank | Financials | Banks | Bangkok | 1907 | Commercial banking |
| Siam Piwat | Consumer services | Retail | Bangkok | 1958 | Retail center |
| Silkspan | Technology | Software | Bangkok | 2000 | Web services |
| Software Park Thailand | Financials | Financial services | Pak Kret | 1999 | Technology investments |
| Starmark | Consumer goods | Household goods | Bangkok | 1982 | Furniture |
| Strudyna Engineering | Industrials | Construction & materials | Bangkok | 2006 | Construction |
| Sukosol Group | Consumer services | Travel & leisure | Bangkok | 1970 | Hospitality group |
| Tanin Industrial Company | Consumer goods | Leisure goods | Bangkok | 1946 | Consumer electric device |
| Tao Kae Noi | Consumer goods | Food & beverage | Bangkok | 2004 | Snack foods |
| Thai Air Cargo | Industrials | Industrial transportation | Bangkok | 2004 | Cargo airline, defunct 2006 |
| Thai AirAsia | Consumer services | Travel & leisure | Bangkok | 2003 | Aviation |
| Thai Airways | Consumer services | Travel & leisure | Bangkok | 1960 | State aviation |
| Thai Aviation Industries | Industrials | Defense | Bangkok | 2003 | Military aircraft maintenance |
| Thai Express | Consumer services | Restaurants & bars | Bangkok | 2002 | Restaurants, part of Minor International |
| Thai Life Insurance | Financials | Insurance | Bangkok | 1942 | Life insurance, financial services |
| Thai Oil | Oil & gas | Oil & gas producers | Bangkok | 1961 | Petroleum |
| Thai Pacific Airlines | Consumer services | Travel & leisure | Bangkok | 2003 | Airline |
| Thai President Foods | Consumer goods | Food & beverage | Bangkok | 1972 | Noodles |
| Thai Public Broadcasting Service | Consumer services | Media | Bangkok | 1996 | Broadcasting |
| Thai Rath | Consumer services | Media | Bangkok | 1962 | Newspaper |
| Thai Rating and Information Services | Financials | Financial services | Bangkok | 1993 | Credit ratings |
| Thai Rubber Latex Corporation | Industrials | General industries | Samut Prakan | 1985 | Latex |
| Thai Rung Union Car | Consumer goods | Automobiles | Bangkok | 1967 | Automobiles |
| Thai Summit Group | Industrials | General industries | Samut Prakan | 1977 | Manufacturing |
| Thai Union Group | Consumer goods | Food & beverage | Samut Sakhon | 1977 | Frozen and canned seafood |
| ThaiBev | Consumer goods | Food & beverage | Bangkok | 2003 | Beverages |
| Thaicom | Telecommunications | Fixed line telecommunications | Nonthaburi | 1991 | Telecom |
| ThaiJet | Consumer services | Travel & leisure | Bangkok | 2003 | Airline, defunct 2004 |
| Thanachart Bank | Financials | Banks | Bangkok | 2002 | Banking, financial services |
| The Cabin Chiang Mai | Health care | Health care providers | Chiang Mai | 2009 | Rehab facility |
| The Erawan Group | Conglomerates | - | Bangkok | 1982 | Shopping centers, hotels, department stores |
| The Mall Group | Consumer services | Retail | Bangkok | 1981 | Malls, movie theaters |
| The Pizza Company | Consumer services | Retail | Bangkok | 1980 | Pizza, part of Minor International |
| The Treedom Group | Consumer goods | Food & beverage | Bangkok | 2006 | Agricultural |
| Tisco Bank | Financials | Banks | Bangkok | 1969 | Banking |
| TL Tradewinds | Consumer goods | Food & beverage | Surin | 2011 | Food processing |
| TMB Bank | Financials | Banks | Bangkok | 1957 | Banking |
| Tonson Group | Financials | Financial services | Bangkok | 2006 | Diversified investment |
| TOT | Telecommunications | Fixed line telecommunications | Bangkok | 1954 | State telecom |
| Toyota Motor Thailand | Consumer goods | Automobiles | Samut Prakan | 1962 | Automobile, part of Toyota |
| TPI Polene | Industrials | Construction & materials | Bangkok | 1987 | Cement |
| True Corporation | Telecommunications | Mobile telecommunications | Bangkok | 1990 | Telecom, mobile phones |
| UBIS | Basic materials | Chemicals | Bangkok | 1997 | Chemicals |
| Wellcom | Technology | Telecommunications equipment | Bangkok | UNKNOWN | Mobile phones |
| Workpoint Entertainment | Consumer services | Media | Pathum Thani | 1989 | Media |
| Yan Wal Yun | Consumer goods | Food & beverage | Bangkok | 1947 | Food processing |