In 1921 a group of Napier doctors agreed to form an unlikely venture: an insurance company formed as a mutual to serve the needs of doctors. A century later, MAS is still thriving. In many ways it has been a century of success against the odds, and that’s down to the enduring spirit laid down by our founders.


MAS is still a mutual, a company with no shareholders, owned by its Members. And we’re one of only two mutual insurers left in New Zealand. Doctors and other medical professionals are still at the core of who we are, but today we welcome New Zealanders from all professions and those who align to our broader values and aspirations for a healthier Aotearoa.


We look forward to celebrating our first hundred years with our staff and Members – past and present – and sharing our story with the rest of New Zealand.


More news

How we invest in international share markets

22 April 2021 - The MAS KiwiSaver Plan and MAS Retirement Savings Plan have around $1bn invested in international equities (shares). This means the success of our Plans depends on carefully managing our investment in international equities.

Report on fund investment performance for the quarter ended 31 March 2021

21 April 2021 - Over the past quarter, COVID-19 vaccines have been approved for use and are being rapidly rolled out around the world. This means that the prospects for economic growth have significantly improved.