Bangkok Bank Public Company Limited (Thai: ธนาคารกรุงเทพ, RTGS: Thanakhan Krung Thep) is one of the largest commercial banks in Thailand.Bangkok Bank was established in 1944 and was listed on the Stock Exchange of Thailand in 1975. One of Thailand's 3rd class banks, Bangkok Bank has an extensive distribution channel network to serve a variety of customers. Services are provided through physical premises such as branches and business centers, digital banking such as internet banking ("Bualuang iBanking"), mobile banking (Bualuang mBanking), phone banking, 9,300 ATMs, 1,200 CDMs, and other self-service machines.

The Bank of Thailand (BOT) (Abrv: ธปท.; Thai: ธนาคารแห่งประเทศไทย, RTGS: thanakhan haeng prathet thai) is the central bank of Thailand. The Bank of Thailand (BOT) was first set up as the Thai National Banking Bureau. The Bank of Thailand Act was promulgated on 28 April 1942 vesting upon the Bank of Thailand the responsibility for all central banking functions. The Bank of Thailand started operations on 10 December 1942.

Bangkok Bank Public Company Limited (Thai: ธนาคารกรุงเทพ, RTGS: Thanakhan Krung Thep) is one of the largest commercial banks in Thailand. Bangkok Bank was established in 1944 and was listed on the Stock Exchange of Thailand in 1975. One of Thailand's 3rd class banks, Bangkok Bank has an extensive distribution channel network to serve a variety of customers.

The Islamic Bank of Thailand (iBank) (Thai: ธนาคารอิสลามแห่งประเทศไทย, RTGS: Thanakhan Itsalam Haeng Prathet Thai) was established in 2002. The Islamic Bank is a state-owned enterprise and has 130 branches throughout the country (2015). It is set up under the Islamic Bank of Thailand Act 2002. It began operations in 2003. By the end of 2005 the bank had total of nine branches.

The Export–Import Bank of Thailand (EXIM Thailand) (Thai: ธนาคารเพื่อการส่งออกและนำเข้าแห่งประเทศไทย (ธสน.)) is a state-owned bank headquartered in Bangkok, Thailand.The bank's fiscal year runs from 1 January to 31 December. EXIM Thailand began operations on 17 February 1994.[5] It was established with 2.5 billion baht in initial capital by the "Export–Import Bank of Thailand Act B.E. 2536 (1993)", which took effect on 7 September 1993.

The Bank for Agriculture and Agricultural Cooperatives (BAAC) (Thai: ธนาคารเพื่อการเกษตรและสหกรณ์การเกษตร (ธ.ก.ส.)) was established in 1966. The bank is 99.79 percent owned by the Thai Ministry of Finance. BAAC was established on 1 November 1966 as a government-owned bank to provide affordable credit to agricultural producers, either directly or through agricultural cooperatives and farmers' associations. BAAC assumed the functions of the Bank for Cooperatives (which had been established in 1947).

Bank of Ayudhya Public Company Limited, branded and commonly referred to as Krungsri (sometimes stylized as krungsri), is the fifth largest bank in Thailand in terms of assets, loans, and deposits. The Bank of Ayudhya was established on 27 January 1945 in Phra Nakhon Si Ayutthaya Province, the old capital of Thailand. The bank opened its doors on 1 April 1945 with registered capital of one million baht.

Industrial and Commercial Bank of China Limited (ICBC; Chinese: 中国工商银行; pinyin: Zhōngguó Gōngshāng Yínháng) is a Chinese multinational bank.Founded as a limited company on 1 January 1984,ICBC is a state owned commercial bank. Preconditions of 1948–1979 From 1948 the mono-banking system of China was the People's Bank of China, providing both policy lending, and, operations to the commercial sector.

Kasikornbank (Thai: ธนาคารกสิกรไทย, RTGS: Thanakhan Kasikon Thai, Teochew: Khai-thài Ngîng-hâng, Chinese: 开泰银行; pinyin: Kāi Tài Yínháng, stylised in all caps), often stylised as KBank and formerly known as the Thai Farmers Bank is a banking group in Thailand. Kasikornbank (then Thai Farmers Bank) was established on 8 June 1945, with registered capital of five million baht and 21 employees.