A Team Academy


To create world changers through world-class capacity building, soft skills, and career development programs


To become the leading global educational service organization and change the world through the social impact of trained world changers

Our Latest Events


Speech and Debate Classes (Jan.21 or 22)

World Changers Cup 2022

In partnership with Wellington College International School Bangkok, the A Team Academy, an Affiliate Member of FOBISIA, is delighted to welcome you to World Changers Cup 2022 (Thailand Speech and Debate Championship) this coming October 22 – 24!

The competition is open to all students from public, private and international schools and universities in Asia and around the world. The goal of this event is to promote critical thinking skills by discussing relevant societal issues as we empower the next generation of world changers to use their voice and share their ideas. 

We have an amazing lineup of speakers including Anchilee Scott Kemmis, top international and national debate judges, a special performance by an orchestra band, live shows, all done at the world-class facilities of Wellington College International School Bangkok.

Join more than 100 students from Wellington College Bangkok, Harrow, Shrewsbury, Bangkok Patana, ICS, BASIS, Rugby School Thailand, St.Andrew’s, SISB, Bangkok Prep, Denla British School, Wells International School, Anglo-Singapore International School, CUDS, MUIC, and several others who have already registered during Phase 1 to Phase 3.

Everyone is also welcome to attend as observers or judges. Only 50 seats left. Registration open now till October 10.

World Changers Camp 2021 (April.3-5)
Speech and Debate Competition

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.

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.

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

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. 

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