NIAZ has been an ISQua (International Society for Quality in Health Care) accreditated organization since 2009.
Since 2009, the NIAZ organization itself has been accredited 3 times and the NIAZ standards and surveyor training program twice. NIAZ currenty uses the Qmentum International & Qmentum Global standards developed by HSO. HSO itself – and its standards - are also accredited by ISQua.
As well as being accredited by ISQua, NIAZ also plays an active role in the ISQua organization: NIAZ's CEO, mr Kees van Dun, is a member of the ISQua Council and an ISQua expert, and mr Freek van der Heijden is an ISQua surveyor.