Ngaio Diagnostics is a privately owned supply company based in Nelson, New Zealand. Established in 1991, we specialise in the distribution and support of quality products to laboratories and commercial users throughout New Zealand, Australia and the Pacific Islands.
We take your business personally. Doing business with us means you will deal with a team who know and understand what you are looking for, and ensures that you will find the right product to meet your requirement.
Stuart McKenzie
Stuart brings over two decades of experience in business development & management to Ngaio. With a proven track record of driving growth and fostering innovation, his aim is to continue positioning Ngaio Diagnostics as a leader within the territories serviced by Ngaio.
Stuarts commitment and his passion for improving customers workflows, choices and outcomes are at the core of the companies mission, and naturally has resulted in a successful and growing company.
Rob McKenzie
Rob founded Ngaio Diagnostics in 1991 after working as a laboratory manager and hospital scientist in Clinical Biochemistry and Quality Management.
With decades of experience in clinical diagnostics Rob works in an advisory role within Ngaio Diagnostics and has a particular interest in identifying new and upcoming technologies.
Dr Mak Sarwar
Mak is a clinical scientist who became part of Ngaio Diagnostics in January 2023. As a Head of Clinical Diagnostics, he leads the strategic direction and execution of advanced diagnostic solutions, focusing on the integration of cutting-edge technologies in pathology, molecular oncology and clinical diagnostics.
With a strong background in molecular oncology, Mak ensures that our portfolio of diagnostic tools is aligned with the latest advancements in molecular testing, ultimately driving precision medicine and improving patient outcomes.
Vanessa Cudmore
Vanessa has a strong background in clinical diagnostics with extensive hands-on laboratory experience across various disciplines, including Molecular Biology, Biochemistry, Haematology, and Immunology.
With a passion for medical innovation and technology, she recognises the critical role that quality diagnostic products play in delivering accurate results. Vanessa is dedicated to ensuring our diagnostic portfolio offers solutions that improve healthcare outcomes for patients.
Shweta Shinde
Shweta joined the clinical diagnostics team of Ngaio Diagnostics early 2026 to cover our growing clinical portfolio. Working within our CDx team, Shweta supports our customers across multiple disciplines.
With a strong background in research Shweta is well suited to support our customer base with solutions from global leaders.
Dr Usama Mukhtar
Usama brings with him a wealth of research experience spanning Molecular Biology, Microbiology, and Biochemistry from prestigious academic and industrial organizations.
Usama oversees the Life Sciences division of Ngaio Diagnostics, providing support to a wide range of customers in the sector.
Iona Kelly
Iona is a qualified Food Technologist who is dedicated to understanding the intricate dynamics and requirements of the food industry, while helping her customers find the right product for their needs.
Iona oversees the development and industry initiatives within Ngaio, and welcomes all enquires.
Laura Richards
Laura supports Ngaio’s growing presence across primary care, occupational health, and veterinary diagnostics by assisting end-users and ensuring efficient, reliable supply. With a scientific background, she applies her expertise to support healthcare and veterinary teams in understanding how Point of Care testing can be effectively integrated into everyday workflows.
Kerry Ford
Kerry Ford is a dedicated and skilled office manager. With a solid background as a qualified accountant, Kerry brings a wealth of knowledge to the role, ensuring smooth and efficient office operations.
Please contact Kerry for all queries regarding accounts or administration.
Ashleigh Churchill
Ashleigh joined the NgaioDx team during the COVID-19 period to support the significant increase in workload. She is a dynamic and highly capable office administrator, bringing experience gained from a diverse professional background.
Ashleigh’s strong organisational skills, attention to detail, and proactive approach make her an integral part of the NgaioDx team, contributing significantly to the ongoing success and efficiency of the organisation.
Tracey Royal-Malone
Tracey joined NgaioDx in 2026 to support the company’s continued growth. Working within the administration team, Tracey plays a key role in managing the expanding administration and warehousing requirements of NgaioDx.
Her focus on organisation, efficiency, and operational support helps ensure smooth day-to-day operations and reliable service for our customers as the business continues to scale.
India Shamini
India brings an extensive background in marketing strategy and execution. She is responsible for leading Ngaio’s marketing direction and initiatives, ensuring our brand and product portfolio are effectively represented across all our markets.
With her strong expertise and creative approach, India plays a key role in supporting the growth of Ngaio Diagnostics and strengthening connections with our customers.