Board of Directors

Graham Lenzner

Non-Executive Chairman

Graham’s career spanned four decades, with particular emphasis on funds management and financial markets. Graham was an Executive Director of the Armstrong Jones Group for 12 years, the last four years as Joint Managing Director.  Other previous roles include Finance and Deputy Managing Director of Aquila Steel, General Manager Finance and Investments of MMI Insurance Limited and Director Head of Equities with Schroder Darling Management Limited.


Graham has served on the Board of a number of public and private companies. He is currently Chairman of Device Technologies Australia Pty Limited and an Independent Non-Executive Director of 360 Capital Group.



John Wilson

Managing Director and CEO

John has extensive global business experience, having spent most of his 20 year career in the development of international businesses in Asia, Europe and the US including establishment of major strategic alliances and partnerships, technology licenses and driving market entry strategies through new product innovation and commercialization.


John specializes in the field of strategic business development, innovation management and product commercialization. He has a post graduate qualification in international marketing and has received skills development from graduate schools in the US and in Europe in the areas of value based management and innovation management.

John successfully co-founded and built TZ from the ground up into a global publicly listed technology company before exiting the Company in early 2007. He returned to TZ in a consulting capacity to support the new Board of TZ Limited in 2011.


John also has significant executive management experience having spent a decade in his earlier years working for a major multinational manufacturing corporation in a range of senior roles across marketing, business development, strategy development, technology management and business unit general management.


John has an honours degree in Engineering and was awarded the City of Sydney’s Young Engineer of the Year Award for his contribution to the profession in 1987.



Directors Portraits Mark Bouris

Mark Bouris AM

Non-Executive Director

Mark Bouris has established a successful career from building disruptive businesses to challenge the market and provide smarter solutions for consumers.


Mark’s current positions include Executive Chairman of Yellow Brick Road Group (ASX:YBR), Non-Executive Chairman of TZ Limited (ASX:TZL) and Non-Executive Director of Sydney Roosters Football Club and Eastern Suburbs Leagues Club. He is also an Adjunct Professor for Banking & Finance and Business Law & Tax at UNSW Business School and works with the University to mentor tomorrow’s business leaders.


In 2015, Mark was appointed a Member of the Order of Australia for significant service to the finance industry and tertiary education and has most recently acted as Chairman of the Taskforce into Digitisation of Small Businesses in Australia for the Australian Treasury.


Mark is the author of Wealth Wizard, The Yellow Brick Road to Your Financial Security, and What it Takes, and has recently created and produced a new TV show along with Channel 7 called The Mentor which aired in April this year and coincides with The Mentor podcast and



Thierry Denis

Non-Executive Director

Thierry is a technology executive with more than 20 years’ international experience in business management, company turnaround and transformation. He built an accomplished career with billion-dollar technology company Ingenico, leading a diverse range of mandates across dynamically different regions and markets. Thierry has led culture and process change, while leveraging his strong foundation expertise in IT solutions delivery.


Thierry was successful at Ingenico in delivering revenue and profit growth through the creation of scalable, lean and efficient business models and engaged, empowered and high performing team environments. This accomplishment earned him industry recognition through receipt of ‘President of the Year’ Award by TMT News.



Mario Vecchio

Non-Executive Director

Mario has 25 years of experience in the technology industry, across the networking, enterprise software, telecommunications, utilities and healthcare sectors. Mario founded Communications Australia (now Progility) in 2007. Under his leadership the company grew to more than 800 employees worldwide and approximately $150 million in revenue. Mario currently leads Big Switch Networks’ Asia Pacific operations.


Previously, Mario was a consultant for Juniper Networks and on the advisory board of Siemens Enterprise Communications. Mario was also an early employee of Cisco Systems in Australia, where he helped build the business from its start-up phase. He was later appointed director of channels, before leaving Cisco to found Savant Data Networks.