Triple accreditation (also known as the triple crown) refers to a business school being accredited by all three leading international accreditation organizations: the Association to Advance Collegiate Schools of Business (AACSB) in the US, the Association of MBAs (AMBA) in the UK, and EFMD Quality Improvement System (EQUIS) in Belgium. [1] Around 1% of business schools around the world hold triple accreditation.
Each of the three institutions assesses a business school according to different criteria and scope:
While all three business school accrediting bodies operate worldwide, business schools in the US primarily pursue only AACSB accreditation. This is influenced by US business school perceptions that US accreditation is sufficient.
Additionally, the structure of US business schools often does not align with the European standards of AMBA or EQUIS. For example, AMBA accredidation criteria requires that all MBA students have a minimum of three years of post-graduate work experience. This is a criterion which the vast majority of the top US business schools cannot meet as US MBA programmes sometimes admit applicants with only a bachelor's degree and no work experience. [5]
A total of 141 business schools from around the world were triple-accredited as of 28 May 2025 [update] . [6]