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Mailene Sigue-Bisnar

Mailene Sigue-Bisnar

Partner, Audit & Assurance; Advisory Services; Head of Markets

Mai is a Partner in the Advisory Services and Audit & Assurance Practice Areas of P&A Grant Thornton. She is a  Certified Public Accountant, Certified Management Accountant, and EQA/EMCC Certified Coach at Practitioner Level. She also heads the Firm’s Markets Group, which handles public and press relations, external communications, and business development.

In addition to her client-servicing responsibilities, she was head of the Firm’s Training Group for a number of years.

Mai has been in public accounting since she started her professional career in 1991. She has gained wide-ranging experience in the audit of local and multinational companies in various industries. She also has significant experience in the performance of IPO. As a management accountant, Mai also has extensive knowledge in strategic business analysis and strategic cost management. 

For a year and a half, Mai worked with the New York office of a leading international accounting firm, where she specialized in the audit of major real estate Company in the United States. Mai has been a regular resource speaker on various P&A public and in-house seminars. She was the lead audit partner of the special audit engagement team that won the 2008 Founders Award, the highest form of recognition for team excellence at P&A.

Mai completed the Strategic Marketing Management Program from the Stanford Graduate School of Business, Stanford University California. She was also a part of the Management Development Program of the Asian Institute of Management, gaining a mark of Superior Performance. Mai also received her Bachelor’s degree in Accountancy, cum laude, from the University of the East.


  • Philippine Institute of Certified Public Accountants (Director, Eastern Metro Manila Region)
  • Association of Certified Public Accountants in Public Practice (ACPAPP)
  • Institute of Internal Auditors of the Philippines (IIA-P)
  • Shareholders Association of the Philippines (SharePhil)
  • Financial Executives Institute of the Philippines (FINEX)


  • Distinguished Alumni Award, University of the East - Caloocan College of Business Administration Alumni Association
  • One of the Outstanding PICPA Chapter Presidents, Philippine Institute of Certified Public Accountants - Eastern Metro Manila Chapter
  • GARCA Award-Continuing Excellence Award, Philippine Institute of Certified Public Accountants
  • Founders Award, P&A Grant Thornton
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Mailene Sigue-Bisnar
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Partner, Audit & Assurance; Advisory Services; Head of Markets
Mailene Sigue-Bisnar
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