| 1970s |
AMINZ started as a Branch of the Chartered Institute of Arbitrators (UK). |
| 1987 |
AMINZ was incorporated as the Arbitrators’ Institute of New Zealand. |
| 1995 |
AMINZ accredited the dispute resolution papers offered by the Dispute Resolution Centre at Massey University for Associate membership admission. |
| 1996 |
As a result of mergers with the Institute of Employment Arbitrators and Mediators and with the Mediators’ Institute of New Zealand, the Institute became the Arbitrators’ and Mediators’ Institute of New Zealand (AMINZ). |
| 2002 |
AMINZ was appointed an authorising nominating authority to nominate adjudicators under the Construction Contracts Act 2002. |
| 2004 |
AMINZ accredited the National University of Singapore’s course in International Commercial Arbitration for Associate membership admission. |
| 2004 |
AMINZ accredited the University of Waikato’s dispute resolution diploma for Associate membership admission. |
| 2007 |
AMINZ accredited the University of Auckland Faculty of Law’s dispute resolution papers for Associate membership admission. |