Triple accreditation

Triple accreditation is the informal name for a business school that holds AACSB, EQUIS, and AMBA at the same time. People also call it the triple crown. The three marks come from three organizations with three units of review, so the combination is rarer than any one badge.

AACSB and EQUIS review the school. AMBA reviews MBA and related postgraduate programs, and it expects the school’s MBA portfolio to be put forward. A school can be AACSB-accredited and still miss AMBA because its US two-year class admits people with almost no work experience, or because contact hours fall short of AMBA’s 500-hour expectation.

How it works

Each accreditor runs its own self-evaluation, peer visit, and maintenance cycle. Nothing in the three rulebooks automatically recognizes the other two. The school pays three fees, hosts three teams, and writes three reports. Marketing then collapses that work into a single phrase.

Rarity is real and also a sales line. Schools repeat “less than 1% of business schools” because the intersection is small relative to the global population of institutions that use the word business school. The phrase does not mean the school is #1 in the Financial Times MBA ranking. FT entry itself only requires AACSB or EQUIS, not the full set.

Example: School A holds AACSB only and sits in the US News top 20. School B holds all three, sits outside that US list, and meets AMBA’s work-experience floor. An applicant who needs a post-experience classroom and a European employment market may prefer B. An applicant targeting US on-campus banking recruiting may prefer A. The crown does not settle that argument.

How it differs

Single-mark AACSB is common among research universities and is not triple accreditation. ACBSP or IACBE plus regional accreditation is a different stack. Program-level AMBA without school-level EQUIS is also not the crown.

Common errors

Treating triple accreditation as a ranking. Assuming every program on a triple-accredited campus is AMBA-accredited. Using the 1% line as a quality function without reading work-experience rules and employment reports.