Leadership · Insight · Knowledge

Welcome to the Institute of Internal Auditors New Zealand, the professional body for internal auditing

About UsJoin Us

What is internal audit?

Internal audit is a dynamic profession that provides independent assurance that an organisation's risk management, governance and internal control processes are operating effectively Essentially, Internal Auditors help organisations to succeed.

Read More

Membership benefits

Join our professional community and access a range of local and international benefits to expand your thinking, knowledge and networks.

Learn MoreJoin Now

Events & training

Connect with other internal audit, risk and assurance professionals and grow your knowledge and skills with a range of online and local events.

Find out more

home | About Us

Structure & Committees


Structure & Committees

Our people

A membership organisation, IIA NZ has over 700 members throughout New Zealand.

National Board of Directors

We elect up to seven members to act as directors of a National Board. Directors are elected for a two year term, with one half of the positions on the Board being up for election each year, and the Board has the ability to co-opt three additional members. The Chair is appointed by the Board annually.

Yoonyoung (YY) Lee, CA, CISA, PRINCE2, ICP
Board Chair

YY, a Risk and Assurance Partner at PwC, drives their national internal audit practice in NZ and is well connected with the Australasian practice and global colleagues. She has been a member of IIA NZ since 2013, was part of the 2019 IIA NZ Conference organising committee, and was the MC for the event too. YY is excited to bring Auckland representation to the Board and further contribute to our profession with fellow members.

Tee Chow Lee

Tee Chow heads the Internal Audit team at New Zealand’s largest developer and property manager, Kāinga Ora. He brings with him 15 years of experience in New Zealand and Singapore across diverse roles in internal audit, finance, consulting, corporate, and private and public sectors. This deep experience, at all levels of management and governance, has driven Tee Chow’s passion for Internal Audit advocacy, development and maturity. Tee Chow is looking forward to contributing to the Board and the future of the profession.

Rob Marshall

Rob is an accomplished risk and internal audit professional with over 15 years of experience. He is a Partner at Grant Thornton and  has been leading risk, internal audit, and fraud functions since 2013. He was also the recipient of the Internal Auditor of the Year in 2013. Rob has presented at many IIA NZ conferences. As part of his professional and non-professional roles in the community, Rob has learned and seen first-hand the positive difference that constructive and involved governance members can add to an organisation.

Grace Nunn, CIA
Education Committee member

Grace is a Senior Manager at KPMG based in Wellington and has been an IIA NZ member since 2016. During this time, Grace has been involved in numerous events and brings enthusiasm and passion for internal audit. Her recent entrance to the profession means that she can bring new ideas and align the interests of those new to this profession to those with more experience. Grace has experience providing internal audit and advisory services to both public and private organisations and is a strong advocate for the value of internal audit.

Shaun Dowers, CIA

Shaun is the Manager Assurance at Te Rūnanga o Ngāi Tahu. Shaun has been an IIA NZ member for 11 years and is also a CIA. Shaun is a firm believer that education is the foundation of quality internal audit.

Julie Tweedie, MBA, CMInstD, PMP

Julie is an independent contractor based in Christchurch. She delivers internal audit, risk and advisory services to a range of clients. With over 10 years practical experience, backed up with a range of formal qualifications, she recognises the value of effective internal audit and governance processes.

Ramon Manzano, CIA, CA, ACDA

Ramon has been practicing internal audit for more than 25 years in New Zealand and overseas. He is currently Chief Audit Executive and General Manager at healthAlliance and was named Internal Auditor of the Year 2017. At this stage of his career, he has started sharing his experience and knowledge through mentoring and board memberships at not-for-profit organisations. His main interest is in promoting education and training for the next generation of internal auditors to equip them with the skills to drive positive change within their organisations and communities.

Jocelyn Ooi

As a Certified Public Accountant and Certified Chartered Accountant, Jocelyn gained substantial auditing, accounting, and finance experience with a large multi-national organisation. Her high perseverance allowed her to deliver results that consistently met management expectations. She leads by example, and good time management enables her to lead and build a solid rapport with teams. She has a positive outlook and caring style of leadership skills that allow her to help others to achieve tremendous success through positive inspiration.

Jocelyn's career history includes her experience as an external auditor with PriceWaterhouseCoopers Kuala Lumpur and PriceWaterhouseCoopers Auckland from 1995 to 2019. She also had internal audit experience with Fujifilm Business Innovation from 2019 to 2021 and currently working with AIA New Zealand as Internal Audit Manager.


Institute members who provide essential leadership and direction for IIA NZ in a voluntary capacity are critical to the successful implementation of our programmes and services.

These volunteers assist IIA NZ by offering advice, guidance and support, both individually and through their roles on the National Board, Committees, Special Interest Groups and Regional Committees.

Our partner organisations

IIA NZ collaborates with Information Systems Audit and Control Association (ISACA), RiskNZ, and the Institute of Directors (IoD) to share information on best practice and run some of our events.

We are grateful for the support given to the Institute by those organisations that very generously allow us to use their venues for our events.

Our regions

We encourage everyone in the internal audit and risk management professions - members and non-members - to attend events run by IIA NZ regions.

Each region develops education and networking event programmes to meet ongoing professional development requirements, and provide members with the opportunity to network with a wider group of people.

Some networking events are free while others, particularly lunchtime meetings, may have a small charge to cover catering.

Education Days are held each year. Registration for these professional development days is moderately priced.

You can find more information about specific events on our Events Calendar.

MoST Content Management V3.0.8287