Triple accreditation (also known as the triple crown) refers to a business school being accredited by three international 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.
A total of 136 business schools in the world are triple-accredited as of 23 January 2025[update].
Additionally, the structure of US business schools often does not align with the accreditation standards for AMBA or EQUIS.
For example, US business school admissions often do not meet the UK's AMBA requirement that MBA students have a minimum of three years of work experience.
[2] Twelve business schools have previously held triple accreditation but are not triple-accredited as of 2025: