Marcus is the Executive Chairman of PwC Singapore and he is with the firm for more than 25 years. Marcus has many years of professional experience providing audit and advisory and consulting services to listed companies, multinational corporations and government agencies across different industries and sectors in Singapore.

Outside of PwC, Marcus is active in the non-profit sectors, he is the Deputy Chairman of the Singapore Polytechnic Board of Governors, a Board of Director of LASALLE College of the Arts and a Council Member of the Singapore National Employers Federation. In addition, he is a Director of the Defence Science and Technology Agency, a Chairman of the Edusave Advisory Council, Ministry of Education and Chairman of the Alumni Advisory Board of Nanyang Business School, Nanyang Technological University of Singapore.

Mr Lam holds a First Class (Honours) Accountancy degree from the Nanyang Technological University. He is also a Chartered Financial Analyst and a practicing member of ISCA and a member of the ASEAN Chartered Professional Accountant (ASEAN CPA).