Nigeria’s banking industry is becoming increasingly dominated by large financial institutions with massive balance sheets, extensive customer networks and growing operations across Africa.
The latest figures show that Access Holdings, United Bank for Africa (UBA), Zenith Bank, First HoldCo and Guaranty Trust Holding Company (GTCO) remain among the biggest banking groups in Nigeria by total assets.
Together, the five financial groups controlled about N161.3 trillion in assets at the end of 2025, highlighting the enormous size and influence of Nigeria’s leading banks.
At the top of the list is Access Holdings, whose total assets rose to about N53.43 trillion in the first quarter of 2026. The group has continued to expand its operations beyond Nigeria, making international growth an important part of its strategy.
Access Bank’s growing asset base reflects its large deposit base, lending activities and expansion across several African and international markets. Its size also gives the group greater capacity to finance businesses and participate in major economic activities.
Close behind is United Bank for Africa (UBA), which recorded total assets of approximately N33.13 trillion in Q1 2026.
UBA has built one of the largest banking networks among Nigerian lenders, with operations spread across several African countries and other international markets. Its extensive customer base and strong corporate and retail banking businesses have helped it maintain its position among the country’s largest banks.
Zenith Bank followed with total assets of about N32.01 trillion during the first quarter of 2026. The bank remains one of Nigeria’s leading financial institutions, particularly in corporate and commercial banking.
Its large balance sheet allows it to provide financing to major businesses, institutions and individuals while maintaining a significant presence in Nigeria’s financial markets.
First HoldCo, the parent company of FirstBank, also remains a major player, with approximately N26.87 trillion in assets in Q1 2026.
The group benefits from FirstBank’s long-established presence and extensive branch and customer network. Its activities across retail, corporate and commercial banking continue to support its position as one of Nigeria’s biggest financial institutions.
Completing the leading group is GTCO, with total assets of about N18.75 trillion in Q1 2026.
While GTCO’s asset base is smaller than those of the other major banks, the group has maintained a strong reputation for efficiency and profitability. It has also been expanding into other financial services, including payments, pensions and asset management.
For many Nigerians, figures running into trillions of naira may seem like distant financial statistics. However, they have a direct impact on everyday economic life.
Banks use their assets to support lending, investments, payments and other financial activities. Their ability to mobilise deposits and provide credit can influence whether businesses expand, consumers access financing and major projects receive funding.
However, having the largest asset base does not automatically make a bank the most profitable or safest. Investors and customers also consider profitability, capital strength, loan quality, liquidity and management when judging a bank’s overall performance.
The continued growth of Nigeria’s biggest banks nevertheless shows how important they have become to the country’s economy. As competition increases and banks expand their digital and international operations, the battle for scale is likely to remain a major feature of Nigeria’s financial sector.
