EisnerAmper Ireland | Tom Brennan Ireland

EisnerAmper Global

Tom Brennan

As a Partner in the firm’s Risk & Regulatory team, Tom provides management & regulatory reporting, financial accounts preparation and ongoing advisory services to the firm’s domestic and international clients.  Tom specialises in compliance and regulatory risk management and has expertise in creating frameworks that comply with new regulations and making business models better through best-practice governance.  Tom also has experience in setting up and managing MiFID, UCITS and AIFMD regulated entities and assisting clients navigating Central Bank of Ireland regulations.

Tom’s clients include financial service entities (including funds and investment firms), internationally based corporate and private equity clients setting up, operating and/or investing in and through Ireland.

Tom was previously CFO and Director of Mercer Ireland, a global financial services company providing pension, insurance, fund management, HR, investment and management consulting services. As CFO, Tom managed finance teams of over 50 staff and was responsible for all aspects of treasury and finance including the preparation of management and statutory accounts, regulatory returns and setting policies and procedures. In this role, Tom was responsible for annual revenues of €150m.

Tom also has considerable experience outsourcing and offshoring accounting activities and the creation of accounting hubs across Europe. Tom successfully led project management teams of up to 20 people across different geographical locations in offshoring, finance transformation, organisational design, shared services and finance systems implementations for 400 finance staff in EMEA and India.

Education, previous work experience

Having qualified as a Chartered Accountant in Dublin, Tom spent 13 years working in London, firstly with PWC in their financial services division and subsequently with Harlow Butler (now ICAP).  At Harlow Butler, Tom was Financial Controller for their UK operations and later the Finance Director of their Asia Pacific operations.

Tom is a fellow of Chartered Accountants Ireland and the Chartered Institute for Securities & Investments.

Tom is also a member of the Insurance Institute of Ireland National and Dublin Councils, Chairman of the Trustees to the Institute of Chartered Accountants pension schemes and more recently a director of The Legal Aid Board.

Tom is a former member of the ruling councils of Chartered Accountants Ireland, a former director and president (2007) of Accounting Technicians Ireland and a former committee member of the Irish Funds industry association.


Tom is married to Michele and has a son Stephen and daughter Aimee. Tom enjoys travelling, reading, economics, personal finance and has recently taken up photography.


Direct Dial +353 1 2934 209


Tom Brennan

Partner Risk & Regulatory
6 The Courtyard Building
Carmanhall Road
Sandyford, Dublin 18

Direct: +353 1 2934 209

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