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Executive Team


Pornleart Rojanapenkul



With his strong background in Economics and Business Management, Mr. Rojanapenkul joined the R&D team at Lever Brothers before seeing an opportunity for a specialized market research company. He established Siam Institute of Marketing Research in 1982 and has remained the company’s Managing Director ever since, overseeing and supervising all business functions.


In addition to leading the company, he also served as Consultant for Thailand’s Economic Committee and Secretary of Consumer Protection Committee for several years.


Supatra Toviriyavet



Having a thorough knowledge in Statistics from Kasetsart University, Ms. Toviriyavet joined the company as Research Director in 1983 and has since been overseeing research teams in all projects.


She holds an MBA from Chulalongkorn University and has been a Visiting Professor at the Faculty of Commerce & Accountancy, teaching master’s degree courses. On top of that, she has previously served as Consultant of Consumer Protection Committee, Consultant of Public Health Minister and Secretary of Thailand’s Economic Committee.

Pornpatra Minerva Rojanapenkul

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Holding a BSc in Economics from the London School of Economics and Political Science and a Master’s in Management from London Business School, Ms. Rojanapenkul possesses a profound understanding of markets, intercultural competence, and an international outlook. She leads SIM Research’s Strategy Division and oversees the application of economics and data analytics techniques in business strategic planning.


She has consulting experience working on various business projects for the world’s top leading companies, including LVMH, Ferrari S.p.A., and GSMA, as well as for start-ups in London.

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