Cork accountancy firms acquired by AAB

Joe Foley and Mark O’Keeffe of Old Quarter Chartered Accountants, Colm Duggan, Head of Professional Services at AAB in Ireland, and Killian O’Brien of O’Brien Crowley Chartered Accountants.

Two Cork-based accountancy firms, Old Quarter Chartered Accountants and O’Brien Crowley Chartered Accountants, have been acquired by international professional services firm AAB. The acquisitions mark AAB’s seventh and eight investments in Ireland since January 2025. 

Founded in Ballincollig in 2022, Old Quarter Chartered Accountants employs 26 people at its offices in Cork and Kerry, including partners Mark O’Keefe, Joe Foley, and Diarmuid Kelleher. It provides audit, tax, business advisory, payroll, and company secretarial services.  "Our clients will continue to work with the same trusted team they know today," said Mr O'Keefe.