HSBC Singapore (subsidiary bank of the Hongkong and Shanghai Banking Corporation Limited) is one of the oldest banks established in Singapore, founded in December 1877. Today it is one of the major banks in Singapore, offering a comprehensive range of financial services including personal, commercial, corporate, investment and private banking, insurance, forfeiting and trustee services, securities and capital markets services. HSBC Singapore is a QFB (Qualifying Full Bank), it has 9 branches with ATM and cash deposit facilities and over 10 self-service terminals.

ANZ Singapore is one of the two designated ANZ regional hubs in Asia. Founded as a representative office of Australia and New Zealand Banking Group in 1974, it was later converted to an offshore bank in 1980, and in 2002 was upgraded to a wholesale bank. ANZ Singapore offers integrated solutions in fields of institutional and corporate banking, financial markets, trade finance, corporate finance, retail banking, private banking and investment banking services.

Citibank Singapore Limited is a division of Citibank N.A. of the United States and incorporated in Singapore on 28 June 2004. Its parent was awarded Qualifying Full Bank (QFB) status on 20 October 1999, and this status was transferred to the Singapore division on the day of its incorporation.Citibank established operations in Singapore on 1 July 1902. It was then known as the International Banking Corporation (IBC) and was the first United States bank to set up a branch in Singapore. Located at 1 Prince Street, IBC was primarily involved in the trade financing of Malayan rubber and tin exports in the early 20th century.In the 1980s, Citibank was the first bank in Singapore to popularise the use of automated teller machines (ATMs).

The Bank of Singapore is a Singapore-based private banking arm of OCBC Bank. Formerly known as ING Asia Private Bank, it was acquired by OCBC Bank in 2009 from ING Group for US$1.46 billion.The bank was launched on 29 January 2010 by the acquisition of ING Asia Private Bank by OCBC Bank in 2009, as a result of ING's restructuring plan, following a government bailout of ING Group in 2008,[4] due to the financial crisis in the late 2000s.