Our People


Tony de Reeper

Tony heads the Wallace Diack team. He balances his time between leading and developing the practice, and working closely with number of Wallace Diack clients assisting with their company growth and expansion or restructuring.

Tony joined Wallace Diack Chartered Accountants as a senior partner in 2000, from Wellington where he worked with a major accounting firm. Prior to this, he spent five years in London working as a European financial controller.

Tony is a Founding trustee of Marlborough College Charitable Foundation and is a former Chairman of the Board of Trustees of Marlborough Boys College.

Tony is a senior black belt (as are his three sons) at the Blenheim Ryuku Kempo Karate Dojo.



Hamish Matheson

Hamish was appointed a Director of Wallace Diack in January 2009 after joining the practice in 2006. Hamish has worked in major accounting firms in Christchurch and Wellington, as well as the banking and fund management sectors in London during the typical 'Kiwi OE experience".

Hamish is involved in general accounting and taxation work for the practices wide range of clients. In addition he focuses on more specialist work in the areas of cash flow forecasting, business valuations, business appraisals, the wine, seafood and farming sectors. Hamish likes to take a pro active role providing regular reporting and working closely with his clients. His role is to assist his clients in achieving what they want to achieve.

Hamish is immediate past Treasurer of the New Zealand National Party Kaikoura Electorate and The Blenheim Club. His voluntary roles have recently been reduced so he can spend time with his young family. He is currently the co-coach of the Moutere under 6 White Ripper Rugby team.

Hamish and his wife Sarah moved to Blenheim in 2006 and have four children. When Hamish is not spending time with his young family he enjoys time spent fishing and diving down the Marlborough Sounds and enjoying the many activities that the Marlborough high country provides.




Michelle Gammie-Catterick

Michelle joined Wallace Diack in June 2014 as a Manager after 14 years of experience in the Chartered Accountancy environment.

Michelle is an Associate Chartered Accountant (ACA) and uses her experience and knowledge to assist clients in general and management accounting while providing them with taxation advice.

Michelle and her husband Tony have raised their three children (now young adults) in Blenheim. They share a passion for cycling with two of their children spending many hours riding around the country roads of Marlborough. When not on their bikes, they are kept busy spending time with their first grandchild.

Peter Ewan

The demise of the timber industry on the West Coast saw Peter (Pete) leaving.

With over 30 years of Corporate experience in Banking/Finance, Motor, Timber and Meat industries, the experience and knowledge gained is now being utilised by his numerous Corporate clients.

Peter likes to relax by way of fishing, both in the sounds and surrounding rivers.



xeroCornerstone   Logo