Tan Boon Yen
Senior Director

Boon Yen has extensive internal audit and risk management experience. She works closely with boards, and audit and risk committees, as well as senior management in the planning and delivery of internal audits in financial, operational and compliance areas including integrated business and operations system audits. She has also worked with various organisations to develop and implement control self-assessment (CSA) programmes and Sarbanes-Oxley compliance frameworks.

Her clients include listed and non-listed companies, multinational companies, ministries and statutory boards in multiple industries such as precision engineering, real estate and construction, printing and publishing, retail, manufacturing, trading, transportation and logistics, technology and communications, energy, mining and healthcare. She has worked with clients with operations in Malaysia, China, Hong Kong, Japan, Taiwan, India, USA, Europe and Australia.

Prior to the Firm, Boon Yen worked with various government-linked and multi-national companies such as Singapore Technologies Pte Ltd, Seagate International, Sembawang Shipyard, TNT Express Worldwide, Neptune Orient Lines and Deloitte. She also has prior experience in external audit and financial and management accounting.

Outside the Firm, Boon Yen teaches at the Singapore University of Social Sciences (SUSS) and the Institute of Internal Auditors Singapore (IIAS). She actively contributes to the development of the internal audit profession as a volunteer member on the IIAS Board of Governors and working committees. She also engages students from local universities to explore internal audit as a profession.



  • Member, Institute of Singapore Chartered Accountants (ISCA)
  • Member, Institute of Internal Auditors Singapore (IIA)
  • Certified Internal Audit (CIA)
  • Certification in Risk Management Assurance (CRMA)
  • Bachelor of Accountancy, National University of Singapore