Rangsan Thammaneewong is the President of Prudent Advisory.  With over 25 years of experience, he has successfully turned around several companies both publicly-listed and privately-held companies.  Other experiences include advising and financing private infrastructure toll-roads, a public mass transit system, structuring and managing pension fund, and investment banking.  Rangsan is currently a director of Sermsuk Public Company Limited and Patkol Public Company Limited.

He specializes in 'Business Transformation' where he assists top executives with their company direction and ensures effective allocation of company resources to attain their strategic objectives as guided by their mission.  Rangsan is a certified Blue Ocean Strategy Consultant from The Blue Ocean Strategy Initiative Centre (BOSIC) in London, awarded qualification for consulting under Adizes methodology, and is a Chartered Member of the Society for Advancement of Consulting (SAC), USA. Rangsan has over twenty five years of experience in the area of corporate finance and strategy. 

Rangsan earned his Bachelor of Science from Brigham Young University in, Provo Utah and an MBA from Joseph M. Katz Graduate School of Business at the University of Pittsburgh, both in the United States.