John Hannigan – Biography
Last update: May 25, 2026Executive profile
John Hannigan is currently
Aviation Finance Sector Leader at EY Ireland - View - EY Ireland org chart
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The colleagues of John Hannigan
Company Colleagues
- At EY Ireland, John Hannigan has 51 colleagues including Frank O'Keeffe (Managing Partner), Mike McKerr (Chairman of the Board)…
Industry Colleagues
- In the Accounting industry, John Hannigan has 11,576 colleagues in 646 companies located in 78 countries. 6,575 executive movements have been recorded in the last 12 months. Learn more about Accounting.
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