Being the proprietor and founder of Webster Ng & Co., Mr. Ng is a fellow Certified Public Accountant (Practising).  He is currently the President of the Taxation Institute of Hong Kong (TIHK), President of Hong Kong Institute of Accredited Accounting Technicians Limited (HKIAAT) and Council Member of The Society of Chinese Accountants and Auditors (SCAA).  Mr. Ng is member of Taxation Policy Committee of TIHK and has been awarded as Honorary Council member of the China Certified Tax Agents Association (CCTAA).

Mr. Ng served in various accountancy sectors including committee member of Examinations and Accreditation Committee of HKIAAT, CPA Qualifying Process Reform Working Group, Accountancy Manpower Research Advisory Panel, Small and Medium Practitioners Committee and Practice Review Committee of HKICPA, as well as SME committee member of The Association of Chartered Certified Accountants (ACCA) and Finance, Audit and Risk committee member of Medecins Sans Frontieres Hong Kong. In addition, Mr. Ng also served as member of Lotteries Fund Advisory Committee and ICAC CACCR Non-official Member. He was commended as Distinguished Service for Community Building Awardee in 2018.