Mona Costelloe – Biography
Last update: March 14, 2026Executive profile
Mona Costelloe is currently
Partner, Litigation and Dispute Resolution at Byrne Wallace Shields - View - Byrne Wallace Shields org chart
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The colleagues of Mona Costelloe
Company Colleagues
- At Byrne Wallace Shields, Mona Costelloe has 13 colleagues including Feargal Brennan (Managing Partner), Colm Hanley (Company Secretary)…
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- In the Legal Services industry, Mona Costelloe has 15,408 colleagues in 721 companies located in 48 countries. 7,887 executive movements have been recorded in the last 12 months. Learn more about Legal Services.
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