Allied Irish Banks

Allied Irish Banks, plc (AIB) is one of the Big Four commercial banks in Ireland and, since 2017, a subsidiary of the listed holding company AIB Group plc. It offers current and savings accounts, personal and business loans, mortgages, debit and credit cards, investments, pension products, financial planning, wealth management, corporate finance, merchant and treasury services, online and mobile banking as well as home and travel insurance, health and life insurance, car insurance and other services. AIB operates more than 170 branches across Ireland as well as has offices in the UK and the United States. The company doesn’t maintain a physical presence in the Cayman Islands and AIB’s Grand Cayman Branch is managed from its New York offices. In the United Kingdom, AIB operates as Allied Irish Bank (GB) in Great Britain and as AIB (NI) in Northern Ireland; the First Trust Bank brand was retired and the firsttrustbank.co.uk website now redirects to aibni.co.uk. In 2011, The Capita Group, the UK’s leading business process outsourcing (BPO), acquired the international financial services business of AIB. Allied Irish Bank was effectively nationalized in 2010 and became the fourth bank to be nationalized following Anglo Irish Bank, Irish Nationwide, and EBS Building Society. The Irish State held circa 99.9% of the ordinary shares of the Bank before AIB's initial public offering in 2017. The State exited AIB's share register on 17 June 2025, returning the group to full private ownership, and the warrants issued to the Minister for Finance at the time of the IPO were subsequently cancelled. As of June 30, 2026, AIB Group plc had total assets of EUR 148.1 billion, gross customer loans of EUR 74.5 billion and customer deposits of EUR 118.8 billion. AIB Group employs 10,144 people on a full-time equivalent basis. The company was established in September 1966 through the merger of the Provincial Bank of Ireland (est.1825), Munster and Leinster Bank (est. 1885), and the Royal Bank of Ireland (est. 1836). AIB's market capitalization was EUR 13.5 billion as of July 12, 2017.

Allied Irish Banks subsidiaries:
AIB Mortgage Bank
AIB Insurance Services Ltd
EBS Mortgage Finance
EBS Limited
AIB Group (UK) plc
AIB Leasing Ltd
AIB Corporate Finance Ltd
Haven Mortgages Ltd
Dove Insurance Company Limited
First Trust Financial Services
First Merchant Processing (Ireland)

Allied Irish Banks locations