Mr Mao Sreng works in a number of industries and sectors, including business and entrepreneurship, aid and development project management, language education, scholarship and international education interfacing with the business community, UN/donor agencies, civil society organisations, Cambodian and foreign government ministries/agencies. Sreng is educated in Cambodia, Australia, and holds a Master of Public Policy and Management from Carnegie Mellon University, Pennsylvania, USA. He is the Convener of the annual CamTESOL Conference series and the annual Global Alumni Convention series. Sreng has been with IDP Education/ACE since 2000.

Ashley joined ACE in June 2012 as Principal. A native Australian from Melbourne, Ashley holds degrees in mathematics, business and linguistics as well as an International Diploma of Language Teaching Management from the University of Queensland (RSA/Cambridge ESOL). After a twenty-year career in corporate banking culminating in a position as Associate Director at Rothschild Bank, Ashley decided that ELT would be more fun. Since then he has worked in the ELT industry for twelve years, including a two and a half-year stint in Brazil and Argentina where he learnt that he just can’t dance. Before taking his position with ACE, Ashley was Director of Studies and Admin Manager at the Access Language Centre in Sydney, and Teaching Centre Manager with AMES in Sydney.​

Thida joined ACE in February 2015 as the campus manager of the ACE Tuol Tom Poung Campus, and later she was promoted to be a Vice-Principal. Prior to her position with ACE, she was a lecturer at the Institute of Foreign Languages, Royal University of Phnom Penh. Thida received her Bachelor degree of Education in Teaching English as a Foreign Language from the Institute of Foreign Languages in 2006 and her Master degree of Education in ESL/Bilingual/Multicultural Education from the University of Massachusetts, USA, in 2009. She completed the International Diploma in Language Teaching Management (IDLTM) from UQ in 2024.

Originally from Scotland, Andrew has more than 20 years' experience in international education across Europe, the Middle East, Africa and Southeast Asia. A graduate of the University of Southampton, he is a member of both the UK and Cambodian Institutes of Directors and serves as Vice Chair of the British Chamber of Commerce in Cambodia, with responsibility for their Education Committee. Since 2016, he has held a range of academic and leadership roles at ACE, culminating in his current position as Vice Principal. He works across ACE's external affairs portfolio, encompassing strategic partnerships, customised training and testing, business development, and stakeholder engagement.

Reaksmey joined ACE in 2013 as a teacher after graduating from the Institute of Foreign Languages in 2012. With over 16 years of experience, he has held various roles in the school management team. In 2018, he received an Australian government scholarship to study at the University of Queensland (UQ), earning a Master of Educational Studies in 2020. He later completed the International Diploma in Language Teaching Management (IDLTM) from UQ in 2024. Reaksmey has led teacher induction, PD activities, and a Teacher Training Project at ACE. A 2022 Australia Awards Ambassador and a Vice Chair of Australian Alumni Association of Cambodia (AAA-C), he actively promotes Cambodia-Australia relations and alumni engagement.

Raninn joined ACE in August 2012 as a teacher of English at Siem Reap campus. Back then she was the first female Cambodian teacher to join the Siem Reap team and later became a lead teacher of the Young Learners' Program in 2015. In her time as a lead teacher, she was a passionate learner and sharer who contributed to curriculum and professional development of the team. She has also started pursuing a master degree in Business Administration and being more involved in the management team at Siem Reap campus. She then became an acting campus manager at Siem Reap campus in 2020 and a campus manager one year later.​

Kokking joined ACE as a teacher in 2016 and later became a Lead Teacher in 2024 at ACE Samdech Pan campus. In this role, he mentored fellow teachers, supported curriculum development, and implemented effective teaching methodologies to support the Children and Young Learner Program. In 2026, he was promoted to his current position as a Campus Manager at ACE Samdech Pan campus. He earned his Bachelor of Education from the Institute of Foreign Languages in 2015 and has over ten years of teaching experience. Passionate about professional growth, Kokking frequently presents at CamTESOL Conference supported by IDP Education, where he shares insights and best practices with fellow educators. He is also a member of the CamTESOL Conference Organising Committee, overseeing advertising and sponsorship.

Panhchaneath joined ACE as a teacher in 2016. Since then she has held the positions of Management trainee and Academic Coordinator before being promoted to her current position as a Campus Manager at ACE Tuol Tom Poung Campus. She has been in the education industry for over 7 years, and she holds a Bachelor of Education from the Royal University of Phnom Penh and a Master of TESOL from the University of Auckland, New Zealand. Her professional interest lies in school management, teacher’s professional development and educational technologies. She has conducted many professional development training sessions for teachers and has presented in different ELT conferences, both locally and internationally.

Thanin joined ACE in September 2011 as a teacher. Since then, he has been in several roles: Assistant Resources Manager, GEP Lead Teacher and currently Campus Manager at ACE Tuol Kork. His experiences in the ELT field include teaching English for over 10 years, working in management positions, as well as coordinating and presenting at both local and international ELT conferences. During his employment at ACE, Thanin was awarded a scholarship by the New Zealand government through NZAS to pursue a 2-year master’s degree in Educational Leadership at the University of Auckland in New Zealand. He graduated and returned back to work at ACE in 2017. Thanin is passionate about the field because he believes that English is not just the language for communication, but also for pursuing higher education, receiving scholarships and job opportunities.​