Concordian International School is accredited by

• The International Baccalaureate Program (PYP, MYP, and DP)
• The New England Association of Schools & Colleges (NEASC)
• The Council of International Schools (CIS)
• The Thai Ministry of Education

Local Relations in Thailand

• The International Schools Association of Thailand (ISAT) 
  An organization set up to represent international schools and education in Thailand.
• Thai Ministry of Education

International Relations

• The International Baccalaureate Organization (IBO) 
  The school is authorized to implement the International Baccalaureate Organization’s Primary Years Program (IB-PYP), Middle Years Program (IB-MYP), and Diploma Program (IB-DP).
• The Council of International Schools (CIS)
  Concordian is a member of CIS which provides services to international schools and education in regions outside Europe.
• The East Asia Regional Council of Schools (EARCOS)
  Concordian is a member of EARCOS, an organization whose goals are to promote intercultural understanding and international friendship, and to advance the professional growth of the educational staff in its member schools.Concordian International School is subject to the regulations governing private schools in Thailand set by the Thai Ministry of Education. Thai regulations state that all international schools must have a Thai Head. Currently, Khun Vichitvong Chanarat is Concordian’s Thai Director