The A Team

Arthur Gannaban
President, Founder

Arthur is a Five-Time National Speech Champion of Toastmasters International. He has won the Albert Prize for Best Academic Contestant, academic scholarships, among several accolades in Speech and Debate. He has judged the EUTH debate finals, has spoken in more than 12 countries and has coached hundreds of students to become great speakers and debaters.

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Chayathorn Purungrit
Vice President, Co-Founder

Chad is a Thai-Taiwanese Biomedical Science Graduate from Mahidol University. He was the 2nd best adjudicator for EUTH 2019 and a semi-finalist in EUTH 2014.

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Chan Hee Yang
Deputy Managing Director

Chris has been a Managing Director for several organizations before becoming the Deputy Managing Director at the A Team Academy where he has managed and worked in events, partnerships, and programs. He specializes in Communications Arts and Event Management.

Nannaphat Apipongrattanasuk
Partner

Prelle is a Biomedical Science Graduate from Mahidol University. She has a Master of Science in Regenerative Science and works as an Interpreter for Large Brands

Siriruk Wah Yu Chen
Business Development Partner

Wah is a Thai-Taiwanese Business Graduate from Washington State University. She has years of experience in education and being a coordinator.

Natrada Sribuathong
Consulting Partner

Melon is a professional trainer for translation and interpreter for international speakers such as Brian Tracy, Mary Buffet, Michael Buldoc, etc.

Panyarak Roque
Debate Coach

Panyarak Roque is a 3-time European Union Intervarsity Debate Champion. He is a former debate coach for Anglo, PDS and the Thailand National Debate Team. He was a Youth Delegate (Thailand) for the United Nations.  He is also a graduate from MUIC.

Avianna Castano
Curriculum Designer

Avianna is a curriculum and instructional designer for a New York-based company. She was the 3rd best judge in Asia, has debated in over 30 tournaments, coached Thailand's national debate team, MUIC, ICS and La Salle. 

Preity Shrinet
Speech Coach

Preity is an activist, educator and beauty pageant. She has been a part of Climate Strike Thailand, conducting workshops related to the environment at several international schools. She is also a contender for Miss Universe Thailand 2022. She is a software engineering graduate from King Mogkut's Institute of Technology

Dr.Vimviraya Lim
Speech Coach

Dr.Vimviraya Lim is an early career researcher, university instructor, certified soft skills trainer and style strategist (NY certified academy). She has a BA from Chula, MA from University of Leeds and a P.h.D in Communication from University of Illinois. 

Sharon Jessy
Debate Coach

Sharon is a corporate lawyer, MOOT court champion, former Australasian Debate Champion (ESL).She has debated in over 30 competitions, coached and conducted debate workshops in Hong Kong, Korea, Taiwan, China, Malaysia and others. She is a LLB graduate from University of Malaya.

Mozz Patimavirujh
Teen Success Coach

Mozz is a teen success coach, certified NLP Master Practitioner and inspirational speaker. He has attended certification trainings from Michael Buldoc, Blair Singer, Vince Tan, Tony Robbins and others.

Ngam Janekhetkij
Communication Coordinator

Ngam is a financial advisor at AIA. She is a graduate from Thammasat University. 

The Founders

About Arthur


At 25 years old, the 5-time national award-winning and dynamic speaker, Arthur is one of the youngest rising  motivational speakers in Asia. He shares powerful stories and experiences that come with life-transforming  lessons. 

At the age of 3, he and his family migrated to Malaysia. Arthur grew up with a French step-father.  After 8 years, they migrated to Thailand and have been living there for 14 years now. 

From being a teacher at a public school to being a commercial model of Android One, or from being a  trainee at Air France to being one of the top speakers and debater that travel the world for competitions,  Arthur believes that we learn the most from experience and having the right mentors.  

With 11 years of public speaking at competitions, events, concerts, debate tournaments, youth groups and 6  years of leadership from president of high school to pioneering organizations at his university, Arthur hopes  to motivate, inspire and share his life to as many people as possible.  He’s the founder and president of the A-Team Academy, in his passion for training the next generation of  world changers through means of public speaking, debate and leadership training. He’s also currently  preparing for an accelerated Master’s degree at M.I.T.

About Chad


Chayathorn Purungrit (Chad), born and raised in Taiwan and completed his undergraduate studies in Thailand (a Science graduate of Mahidol University), currently has over 4 years of teaching experience and is about to complete his graduate studies at Mahidol University. He has taught full time at Ekkamai International School from 2014 – 2015 and since then he has been actively involved in training English, Science, and Math.

Since 2013, he has been participating in national and international debate tournaments, notably the EU-TH (European Union – Thailand) intervarsity debate championship, UADC (United Asian Debating Championship) and ICU – International Christian University debate tournament (Japan). In these tournaments, Chad has been both an adjudicator and debater, and his team has won the semi-finalist award in the EU-TH debate championship.

In addition, Chad has been invited to speak at various events such as pre-launch business talks and church youth group events.

From being the introverted individual, hesitant in expressing himself before joining the debate club at his college, he found the value of public speaking and debate which were instrumental in shaping him to who he is today. Since graduating from college, he found great passion in sharing his experience to others, especially to those who struggle in public speaking.