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Mercer (N.Z.) Limited has been helping New Zealanders manage their retirement savings for over 55 years. We are experienced superannuation and KiwiSaver specialists in New Zealand, with local knowledge and expertise, and global reach.

Many of New Zealand's largest employers have chosen Mercer for their workplace superannuation schemes and many more as preferred KiwiSaver provider. This means we handle the administration, investments, member communications, Helpline and other services in relation to the retirement savings of tens of thousands of New Zealanders.


Ben Walsh

Managing Director & Market Leader, Pacific

In April, 2015, Ben was appointed Managing Director & Market Leader for Mercer in the Pacific spanning the firm’s business segments of talent, health, retirement, financial services and investments.

Prior to this, Ben held numerous senior leadership roles over a career spanning more than 20 years with the Group, including leading Mercer’s Financial Services business in Australia and New Zealand, Market Development in Asia Pacific and Health & Benefits in Australia, New Zealand and India.  He has worked for the Group in four countries and across seven business lines/functional areas.

Ben is a Director of four Mercer Boards including the Trustee of the AU$20 billion in funds under management Mercer Master Trust. He is also a Non-Executive Director of the Affiliation of Superannuation Providers.

Ben holds a Bachelor of Commerce with Honours (University of Melbourne) and a Master of Business Administration (Melbourne Business School). He is a Fellow of the Australian and New Zealand Institute of Insurance and Finance.

Martin Lewington

Managing Director of Mercer (N.Z.) Limited

Martin Lewington is a Partner at Mercer and the Managing Director of Mercer (N.Z.) Limited. He is responsible for all aspects of client relationships, business development, marketing and public relations. Martin joined Mercer’s investment management business in March 2006. From 1 October 2007, he took over leadership of Mercer’s investment consulting business in New Zealand. In 2009, Martin was appointed to lead our New Zealand business.

Martin has nearly 25 years’ experience in corporate advisory consulting. Most recently he was self-employed. Prior to this he has worked for a boutique investment bank, PricewaterhouseCoopers and Ernst Young. His background covers a wide range of consulting projects in New Zealand and the United Kingdom including Treaty of Waitangi settlements, corporate finance projects, investment consulting, privatisations and financial planning.

Martin holds a Master of Science from the London School of Economics, a Bachelor of Business Studies from Massey University, is a CA member of the New Zealand of Institute of Chartered Accountants and a Chartered Member of the New Zealand Institute of Directors.

Sarah Whitelock

Product Leader

Sarah Whitelock is responsible for overseeing all product strategies and development activities over multiple superannuation products, including two KiwiSaver schemes, and over 60 individual Mercer Super Trust Schemes.

Sarah's focus and passion is to ensure that all Kiwis have access to innovative solutions that enable them to make sound long-term investment decisions and to meet their investment goals.

Philip Houghton-Brown

Investments Business Leader, New Zealand

Philip Houghton-Brown is a Principal and leads Mercer's Investments business in New Zealand. He is responsible for the Mercer funds in New Zealand and advises clients on their investment programs. He is based in Auckland.

Prior to joining Mercer in July 2012, Philip gained 23 years of investment experience including managing balanced funds, strategic and tactical asset allocation, multi-manager portfolios and quantitative analysis. As chief investment officer for OnePath (NZ), Philip was responsible for the investment management of a range of wholesale and institutional portfolios and KiwiSaver funds.  He also worked in London for AMP Asset Management managing international equity funds. Prior to this he worked as an analyst for FPG Research, researching fund managers.

Philip holds a Bachelor of Commerce from Canterbury University, a Diploma from the Chartered Institute for Securities & Investment (UK) and is a holder of the right to use the Chartered Financial Analyst® designation.

Nicky Burns

Head of Administration Operations

Nicky Burns is the New Zealand's Administration Leader. In her role Nicky is responsible for managing Mercer’s New Zealand Administration Operation and ultimately driving operational and client service excellence.

Nicky's team are responsible for the administration of 50 stand alone schemes as well as Mercer's Master Trust and KiwiSaver products with combined membership of over 286,000.

Nicky has been part of the Mercer team for the last 15 years and has twenty nine years’ experience in the financial services industry.

Glenys Wilson

Member Education Services Manager

Glenys is the Manager of Education at Mercer in New Zealand. Since the inception of KiwiSaver in 2007, Glenys' main focus has been improving the financial literacy and member engagement of Mercer KiwiSaver customers via a programme of KiwiSaver financial literacy seminars and the provision of financial advice.

Glenys is a QFE adviser for Mercer NZ and is a qualified financial planner. As well as her work in the KiwiSaver space Glenys also has responsibility for the provision of financial education seminars and pre-retirement workshops for both Mercer and external clients.

Toll free: 0508 MERCER (0508 637 237)
From overseas: +61 3 8687 1886
9.00am - 7.00pm

Monday - Friday (NZST/NZDT)

Write to us:

Mercer NZ, PO Box 1849
Wellington, New Zealand 6140


151 Queen Street
Auckland, New Zealand 1143
+64 (9) 928 3200

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