Southeast Asia's 10 Largest Banks by Total Assets in 2025
In 2025, ten Southeast Asia's banks stand out with the most assets.
Southeast Asia is home to some of the fastest-growing banking institutions in the world, supported by expanding economies, rising digital adoption, and increasing regional trade.
According to S&P Global Market Intelligence estimates for 2025, Singaporean banks continue to dominate the region in terms of total assets, while major lenders from Malaysia, Indonesia, and Thailand also maintain strong positions.
Leading the ranking is Singapore’s OCBC Bank with estimated total assets of US$625 billion. The bank has strengthened its regional footprint through wealth management expansion and strategic acquisitions across Southeast Asia.
Close behind is DBS Bank at US$606 billion, reinforcing its reputation as Southeast Asia’s largest digital bank and one of Asia’s strongest financial institutions.
Third place belongs to United Overseas Bank with assets of US$376 billion. UOB has steadily expanded its ASEAN network, particularly in Indonesia, Thailand, and Vietnam. Together, these three Singaporean banks demonstrate the city-state’s importance as a global financial hub.
Malaysia also has a strong presence on the list. Maybank ranks fourth with US$215 billion in assets, making it Malaysia’s largest bank. It is followed by CIMB Group at US$151 billion and Public Bank Berhad with US$112 billion. These banks play major roles in financing infrastructure, trade, and consumer banking across ASEAN markets.
Indonesia, Southeast Asia’s largest economy, contributes two banks to the top 10 list. State-owned Bank Mandiri ranks fifth with US$168 billion in assets, while Bank Rakyat Indonesia holds ninth place with US$120 billion. Both banks benefit from Indonesia’s large domestic market and growing middle class.
Thailand’s banking sector is represented by Bangkok Bank with US$130 billion and Kasikornbank at US$124 billion. These institutions remain important players in corporate lending, tourism financing, and regional investment activities.
Overall, the 2025 rankings highlight the growing financial strength of Southeast Asian banks. As digital banking, cross-border investment, and regional integration continue to expand, these institutions are expected to play an even larger role in Asia’s economic future.