Jerome Ona Senior Manager, Audit & Assurance Makati +63 (2) 988 2288

Work experience

Jerome has been in public accounting since he started his professional career in 2009. He has extensive experience in the financial audits of local and multinational companies in a wide range of industries. He has also been involved in initial public offerings and other securities offerings audits, as well due diligence reviews.

As part of P&A Grant Thornton's global secondment program, Jerome spent 20 months in the United Kingdom (UK), where he worked for the Milton Keynes office of Grant Thornton UK LLP. While in the UK, Jerome handled the financial audits of various companies engaged in commercial and industrial activities. 


  • Certified Public Accountant
  • Member, Philippine Institute of Certified Public Accountants
  • Bachelor of Science in Accountancy, University of Santo Tomas