Datin Sim Wan Ling was previously attached with a Big Four firm as an Associate Director prior to joining Wong Joo Hua & Co. She has more than 20 years of experience in assurance and advisory services, involving amongst other cross-border issuance of securities, fund raising and regulatory reporting, financial auditing and conducting training programmes for clients and professionals.

Datin Sim is a dynamic individual who is constantly in touch with business owners to provide value-added services through practical recommendations in various areas of business improvement. This is in line with her motto of "creating value" for her clients.

She is a Chartered Accountant and a Fellow Member of Certified Practising Accountants Australia (FCPA), a member of the Malaysian Institute of Accountants (MIA), a member of the Chartered Tax Institute of Malaysia (CTIM), and an ASEAN Certified Practising Accountant.

She earned her Post Graduate Diploma in Accounting and Bachelor of Commerce (Accounting) from University of Otago, New Zealand.