Dr Ong is multi-disciplinary trained. He holds a Bachelor of Science ( Hons) degree in Building Ecnomics from Heriott-watt University, Edinburgh and a Master of Administration from Brunel University London. Under an Australian University Postgraduate Scholarship he completed his doctoral studies and was awarded the Doctor of Philosophy (PhD) from Curtin University in 1995.

He has attained the status as Fellow Member of various professional institutions in United Kingdom and Australia, namely Chartered Management Institute, Royal Institution of Chartered Surveyors, Chartered Institute of Building, Australian Institute of Quantity Surveyors and Australian Institute of Building. He is also a past President of Singapore Institute of Building.

He has been appointed as an Adjunct Professor of Curtin University, Western Australia for many years. As a Honorary Regional Director and Advisor for offshore academic development, he initiated and successfully implemented various degree and industry partnering programs. As an Education Partner of the University, his Institution had offerred more than a dozen degree courses in Singapore.

Dr Ong is also the Founder of Chartered Network International and Montessorian World. He began his career as a Chartered Surveyor and Chartered Builder. In his first entrepreneurial endeavour, he established Building Practice Consultants in 1981 offering professional services in real estate development and construction. In 1985, he converted it into Building Practice (S) Pte Ltd for a diversified growth internationally. Since then, it has evolved into a multi-faceted BPII organisation with infocomm.sg as its digital platform . The eConsortium is now in constant self formation, development and growth.