AIB Group plc

Overview

AIB Group plc is a financial-services group operating primarily in Ireland and the UK. Through Allied Irish Banks, p.l.c. and other businesses, it serves personal, business and corporate customers with banking products including mortgages, savings, personal loans and lending to small and medium-sized enterprises and larger companies.[1]+2

The group’s stated purpose is to empower people to build a sustainable future. It reported approximately €4.5 billion in total operating income and employed about 10,200 people in 2025, with most employees based in Ireland and smaller workforces in the UK and US.[4]+2 [1]+8

Products & services

AIB Group’s personal banking products include current accounts, savings and deposits, credit cards, personal loans, mortgages, payments, insurance and wealth services. Its mortgage range covers home purchases, switching, moving, self-builds and top-ups, with fixed, variable and energy-rated green options. The group also offers mortgages and savings through EBS. Its mobile banking services include payments, card controls and access to mortgage information.[7]+4

For businesses, AIB provides loans, farm finance, invoice and asset finance, and sustainability loans. Its corporate offerings include real-estate and structured finance, cash management, trade facilities, foreign-exchange and interest-rate risk management, and equity investments. Climate Capital finances large renewable-energy and infrastructure projects. Goodbody provides wealth and asset management, corporate finance and investment-banking services.[12]+3

Business payment services include SEPA, international and bulk payments, alongside merchant solutions for accepting cards in-store, online, by phone and on the go. The iBB business banking app supports functions including foreign-currency payments, standing-order management and account-balance history. AIB does not disclose a group revenue percentage for each individual product in the cited reporting.[16]+2 [7]+11

Geographic presence

AIB Group’s principal operating market is Ireland, where its retail banking network extends across the island. In the UK, it operates as Allied Irish Bank (GB) in Great Britain and AIB (NI) in Northern Ireland. Its UK activities include corporate banking in both markets and retail banking in Northern Ireland.[19]+2

The group also has an operating presence in the United States. At year-end 2025, it reported 9,430 employees in the Republic of Ireland, 743 in the UK and 34 in the US—approximately 92%, 7% and less than 1% of its 10,207 employees, respectively. Its Climate Capital business serves markets in Ireland, the UK, Europe and North America through offices in Dublin, London and New York.[6][22] [19]+6

Business segments

AIB Group reports five business segments: Retail Banking, Capital Markets, Climate & Infrastructure Capital, AIB UK and Group. In 2025, their approximate shares of total segment operating income were 64%, 22%, 3%, 8% and 2%, respectively. These percentages are calculated from the five segments’ reported income before a separately presented adjustment.[23][24]

Retail Banking provides banking services in Ireland through branches, digital channels and telephone banking. Capital Markets serves larger businesses and institutions with corporate banking and specialist products; it also includes Goodbody’s wealth management, asset management and investment banking capabilities. Climate & Infrastructure Capital, formerly called Climate Capital, specialises in lending to large-scale renewable-energy and infrastructure projects across Ireland, the UK, Europe and North America.[25]+2

AIB UK serves corporate customers in Great Britain and Northern Ireland and operates a Northern Ireland retail banking franchise. The Group segment comprises wholesale treasury and central control and support functions.[21][28] [23]+11

Company history

AIB traces its origins to three Irish banks founded in the 19th century: Provincial Bank of Ireland, Royal Bank of Ireland, and Munster and Leinster Bank. They merged in September 1966 to form Allied Irish Banks. AIB expanded abroad by taking a stake in the United States’ First Maryland Bancorp in 1983 and acquiring it outright in 1989. It entered Poland in 1993 through an investment in Wielkopolski Bank Kredytowy and later acquired a controlling stake in Bank Zachodni.[29]+2

AIB’s U.S. subsidiary Allfirst disclosed a major trading fraud in 2002; Allfirst merged with M&T Bank in 2003. During the Irish banking crisis, AIB received substantial state support. It agreed to sell its Polish banking interests in 2010, and the Irish state’s stake rose to approximately 99.8% following recapitalisation in 2011. The state sold a portion of its shares through an initial public offering in June 2017. AIB Group plc became the group’s holding company that December.[32]+5 [29]+8

Sources

• AIB Group plc — Full financial report (2025 Y)
  14 citations

  [1][2][3][4][6][19][20][21][23][24][25][26][27][28]
• AIB Group plc — Presentation (2025 Y)[5]
• AIB Group plc — Full financial report (2024 Y)
  7 citations

  [7][10][13][14][15][18][22]
• www.aib.ie[8]
• www.aib.ie[9]
• www.aib.ie[11]
• www.aib.ie[12]
• www.aib.ie[16]
• www.aib.ie[17]
• www.aib.ie[29]
• www.ebrd.com[30]
• www.aib.ie[31]
• group.aib.ie[32]
• www.aib.ie[33]
• www.aib.ie[34]
• www.rte.ie[35]
• www.aib.ie[36]
• www.aib.ie[37]