About the Judges
Learn more about the judges for the 2025 Whitehorse Business Awards.
Dianne Semmens
Acacia Consulting Services
Dianne is a Business Analyst, Accountant and Trainer. Dianne established Acacia Consulting Services to provide the best accounting software implementation experience to medium sized businesses. Over the years Acacia has grown to a team of 17 providing Business Process Analysis, Software implementation of MYOB Exo and MYOB Advanced, and the building of integration applications between other software and the two MYOB enterprise platforms. Dianne’s greatest sense of achievement is when the clients have that “Light Bulb” moment and understand all the benefits of what good software can provide.
Brian McPhail
McPhail and partners Pyt Ltd
Brian joined the firm in 1972 and became a partner in 1976. He has been actively engaged with CPA Australia on various committees relating to public accountancy.
Brian ia also ctively involved with the Rotary Club of Box Hill Central
Montanna Denouden
Ouden Consulting
Montanna Denouden, a global HR executive with experience across more than 20 countries and workforces of 500,000+, Ouden Consulting brings big-picture thinking with a sharp eye for on-the-ground impact.
Whether you need a trusted advisor or executive, a hands-on HR partner, or a strategic lens on your people challenges, we’re here to support you with clarity, confidence, and care.
Mikayla Shaw
Robinson Gill lawyers
Mikayla is currently a trainee lawyer at Robinson Gill lawyers in Box Hill Melbourne and she will be admitted as a lawyer in the Supreme Court of Victoria in mid-October 2024.
Mikayla has a double degree in both law and psychology from the Australian Catholic University and when she is admitted, she will continue working as a lawyer in Robins Gill’s Estate Planning and Probate department.
Mikayla has also has nearly a decade of experience in customer service. Whilst working at Robinson Gill lawyers, she brings a client focused approach and a meticulous attention to detail to her work as well as a caring demeanour for all of her customers. Mikayla is dedicated to providing exceptional support to clients, ensuring that every aspect of their experience is handled with the utmost care and precision, allowing clients to feel confident in the services that she provides.
Yarra Valley Water
Joe Gargaro has been working as a Divisional Manager, Development Services at Yarra Valley Water for 9 years. Yarra Valley Water is part of the Energy, Utilities & Waste industry based in Mitcham.
Christina Chia
Christina Chia is a respected non-executive director, enterprise growth strategist, and trusted advisor to boards and CEOs, recognised for her leadership in business and community governance.

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