- Doctorate of Business Administration (DBA) from the International American University in 2012 
- Master in Business Administration (with a Concentration in Human Resource Management) from the International 
   American University in 2008 
- Master in Business Administration from the Phoenix International University in 2008
- Honorary Professorship in Consumer Behaviour by the Stichting Eurogio University College Netherlands in 2014
- Honorary Professor and Panel Expert for IIC University of Technology Cambodia in 2014
- Visiting Professor in Consumer Relations by the International University of Georgia in  2016
- Accredited Public Relations Practitioner (APR) by the Institute of Public Relations Malaysia in 2005 
- Certified Professional Marketeer (CPM) by the Asia Marketing Federation in 2008

YBhg Datuk Dr Marimuthu A/L Nadason is a consumer activist, social worker and campaigner in Malaysia.  He currently holds Honorary Positions in several Non-Governmental Organisations (NGOs) at national and international levels such as :-

National level

- Chairman, Malaysian Standards and Accreditation Council, Department of Standards Malaysia, Ministry of Science, 
  Technology and Innovation (2018 - 2020)
- Commissioner, National Water Services Commission (SPAN) (2007- 2017)
- President, Federation of Malaysian Consumers Association (FOMCA) (2004 - Present)
- President, Malaysian Association of Standard Users (2004 - Present)
- Independent Director, Ombudsman For Financial Services (Previously known as Financial Mediation Bureau) (2004 -  
   Present)
- Member, Transparency International Malaysia (2000 - Present) 
- Chief Executive Officer, Education and Research Association for Consumers (ERA Consumer Malaysia) (1997-
   Present)

International level

- Council Member, Consumers International (CI), London (2008 - Present)
- Chairperson, Asian Partnership for Development of Human Resources in Rural Asia (AsiaDHRRA), Philippines (2006 - 
  2010)

He has also held various advisory roles, both present and past in several Government/Independent Boards at national and international levels.

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