.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, the Chairman of the Edusave Advisory Council under the Ministry of Education, a Board Member of LASALLE College of the Arts, Chairman of the Alumni Advisory Board of Nanyang Business School, Nanyang Technological University of Singapore. A member of Accounting Advisory Board of the National University of Singapore. He is a Board Member of the Defence Science and Technology Agency and a Council Member and Honorary Treasurer of Singapore National Employers Federation and Chairman of Audit Committee of the Ong Teng Cheong Labour Leadership Institute. He is a Director of the Singapore Business Federation Foundation Limited and a Deputy Honorary Treasurer and Member of Singapore Business Federation Council. He is a Director and Chairman of Finance Committee of the Tripartite Alliance Limited.

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).