Contact us

You can reach us between 9.00am and 7.00pm Monday to Friday, except for national public holidays.

Mercer Super Trust


Call us
0508 MERCER (0508 637 237)

Online enquiries
Contact us online    (must be signed-in)

Write to us
Mercer Super Trust
C/- Mercer (N.Z.) Limited
PO Box 1849
Wellington 6140
New Zealand

Calling from outside of New Zealand?
Dial +61 3 8687 1886

Fax us
+64 4 819 2699

Making a complaint?


Mercer KiwiSaver scheme


For more information about the Mercer KiwiSaver scheme and how to contact us, please visit

Are you an employer?
Please contact our Client Service Managers

+64 (9) 928 3200

+64 (4) 819 2600

Looking for our offices?
Our office locations page has all our address details, including postal address.

If you would like to provide feedback?
We welcome your feedback on our website.

Making a complaint?

Download our Guide to complaints resolution document.


The Certification Symbol signifies that a product or service offers an investment style that takes into account certain environmental, social, governance or ethical considerations. The Symbol also signifies that the Mercer KiwiSaver scheme adheres to the strict operational and disclosure practices required under the Responsible Investment Certification Program for the category of Superfund Option. The Certification Symbol is a Registered Trade Mark of the Responsible Investment Association Australasia (RIAA). Detailed information about RIAA, the Symbol and Mercer KiwiSaver scheme’s methodology and performance can be found at, together with details about other responsible investment products certified by RIAA.1

1. The Responsible Investment Certification Program does not constitute financial product advice. Neither the Certification Symbol nor RIAA recommends to any person that any financial product is a suitable investment or that returns are guaranteed. Appropriate professional advice should be sought prior to making an investment decision. RIAA does not hold an Australian Financial Services Licence.