Assurance services

Assurance teams serve the public interest by promoting trust and confidence in business and the capital markets.

Our latest thinking

    The EY CFO Agenda

    The CFO agenda is being driven by the need to evolve business strategy and create long-term stakeholder value while managing costs, all at the same time. Our insights can help chief financial officers protect and transform their organisation.

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    Women walking on the rope

    Careers at EY

    At EY, you’ll have the chance to build a career as unique as you are, with the global scale, support, inclusive culture and technology to become the best version of you.

    The team

    Roger Wallace

    EY Ireland Head of Assurance and EY Entrepreneur of the Year Partner Sponsor
    Trusted business advisor with significant transition experience. Passionate about entrepreneurship and Head of the EY Entrepreneur Of The Year Programme Ireland.
    Dublin, IRL

    Breffni Maguire

    EY Ireland Deputy Managing Partner
    EY Ireland Deputy Managing Partner. Assurance Partner, specialised in plc audits, IFRS, US GAAP and internal controls.
    Dublin, IRL

    Derarca Dennis

    EY Ireland Assurance Partner and Sustainability Services Lead
    Experience advising both global and local companies across financial and non-financial reporting with a particular focus on CSRD, ISSB standards and other non-financial advisory support.
    Dublin, IRL

    George Deegan

    EY Ireland Assurance Partner
    Proven abilities in financial reporting, accounting and internal controls
    Dublin, IRL

    Dermot Daly

    EY Ireland Assurance Partner and EY Ireland Centre for Board Matters Co-Chair
    Believes in transforming audits through the smart deployment of technology.
    Dublin, IRL

    Feargal de Freine

    EY Ireland Assurance Partner and Head of FDI
    Dedicated to achieving excellence across all aspects.
    Dublin, IRL

    Martina Keane

    EY EMEIA Financial Services Chief Operating Officer; EMEIA Deputy Regional Managing Partner
    Accountancy leader. Innovation champion. Lover of the great outdoors.
    Dublin, IRL

    Brian Lenihan

    EY Ireland Assurance Partner
    Skilled in energy, renewable energy, life sciences, technology, external audit, IFRS and US GAAP.
    Dublin, IRL

    Niall Barrett

    EY Ireland Assurance Partner
    Experienced professional in finance function transformation.
    Cork, IRL

    Dermot Quinn

    EY Ireland Assurance Partner
    Strong knowledge of public company reporting, capital market transactions, US GAAP and SEC reporting.
    Dublin, IRL

    Ian Venner

    EY Ireland Assurance Partner
    Technically proficient experienced audit professional.
    Cork, IRL

    Marie Treacy

    EY Ireland Assurance Partner and Audit Compliance Principal
    Assurance Partner and Audit Compliance Principal.
    Dublin, IRL

    Pat O'Neill

    EY Ireland Assurance Partner and EY Ireland Centre for Board Matters Co-Chair
    Focused on the audit meeting the changing needs of business and investors. Supports board directors to navigate their increasingly complex roles by challenging them to ask the right questions.
    Dublin, IRL

    Cathal McDonagh

    EY Ireland Assurance Partner
    Extensive IFRS, and Irish and UK GAAP experience. Interest in local and global agribusiness issues. Football lover.
    Dublin, IRL

    Eoin O'Reilly

    EY Ireland Partner, Head of AI & Data
    Passionate about innovation, data and AI.
    Dublin, IRL

    Ronan Clinton

    EY Ireland Assurance Partner
    Financial accounting industry knowledge. External audit advisor. Relationship builder. Keen runner.
    Waterford, IRL

    Fergus McNally

    EY Ireland Assurance Partner
    Dad; husband; coach; future orientated; and aspiring musician.
    Dublin, IRL

    John McCormack

    EY Ireland Partner, Aviation Finance Assurance Sector Leader, Talent Leader
    Aviation Finance Leader. Talent Champion. Sports and Travel Enthusiast.
    Dublin, IRL

    Ciara McKenna

    EY Ireland Financial Services Assurance Partner
    Insurance sector focus. Diversity & Inclusion advocate. Busy family life.
    Dublin, IRL

    Helen Kerr

    EY Ireland Assurance Partner, EY EMEIA FSO Assurance Talent Lead
    Financial Services Assurance Partner. EMEIA FSO Assurance Talent Leader. Passionate about our people and their development.
    Dublin, IRL
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    EY refers to the global organization, and may refer to one or more, of the member firms of Ernst & Young Global Limited, each of which is a separate legal entity. Ernst & Young Global Limited, a UK company limited by guarantee, does not provide services to clients.