Board of Directors

Mr Sargent joined the Board in July 2016 and was appointed Chairman in July 2022. Steven’s executive career included 22 years at General Electric, where he gained extensive multi-industry, international experience leading businesses in industries including healthcare, energy and financial services across the USA, Europe and Asia Pacific. Steven is a Non-executive Director of Ramsay Healthcare Limited (since December 2021). Steven’s unlisted board activities include Non-executive Director of The Great Barrier Reef Foundation and Chairman of Origin Energy’s philanthropic arm, The Origin Energy Foundation. Steven was previously Chair of OFX Group Limited (2016-2022), and Non-Executive Director of Veda Group Limited. Steven holds a Bachelor of Business from Charles Sturt University and is a Fellow with the Australian Institute of Company Directors.

Mr Kavanagh joined Nanosonics as CEO and President effective October 2013. He was a Non-executive Director of the Board from July 2012 to October 2013. Mr Kavanagh has more than 26 years of international commercial experience in the healthcare market, having held local, regional and global roles in medical device and pharmaceutical industries. Before joining Nanosonics, he was Senior Vice President of Global Marketing for the major medical device company Cochlear Ltd, a position he held for more than 10 years. In the last three years Mr Kavanagh has held no other directorships

Ms McDonald joined the Nanosonics Board in October 2016, bringing with her a strong background in corporate and commercial law, having practised for many years as a partner at Ashurst. Ms McDonald was Chair of the Corporations Committee of the Business Law Section of the Law Council of Australia (2012 to 2013) and was a member of the Australian Takeovers Panel from 2001 to 2010. Ms McDonald is currently a Non-executive Director of CSL Limited, Nufarm Limited and the Walter and Eliza Hall Institute of Medical Research.

Dr McIntyre joined the Nanosonics Board in November 2019. Her executive background is in strategy, particularly in the areas of medical technology and healthcare, with many years as a partner at L.E.K. Consulting in the US and Australia, where she led the Asia Pacific Health practice. Dr. McIntyre was a Director of the Garvan Institute of Medical Research for 12 years and is a Senate Fellow of the University of Sydney. She is currently a Non-executive Director of Fisher & Paykel Healthcare Corporation Limited, Baymatob Operations Pty Ltd and Studiosity Pty Ltd.

Dr Batten joined the Board in September 2023. Dr Batten brings over 30 years’ experience in the healthcare sector gained in non-executive and executive roles, and medical practitioner and clinical roles. Dr Batten was CEO of Imperial College Healthcare NHS Trust in the UK, St Vincent’s Health Australia, Eastern Health and Dental Health Services Victoria. Dr Batten was also Non-executive Director of Abano Healthcare Group Ltd (NZX Listed) and in various other healthcare related research institutes, charities and industry and government bodies. Dr Batten is currently a Non-executive Director of Medibank Private Limited (ASX: MPL), the EBOS Group Limited (NZE: EBO), and the Accident Compensation Corporation (a NZ Crown insurance scheme and investment fund).

Dr Marshall joined the Board in October 2023. Dr Marshall is a technology innovator, physicist and business leader. Until July 2023, Dr Marshall was Chief Executive of CSIRO for eight and a half years, where he led the first growth in 30 years and doubled the value delivered to stakeholders. During his 26 years in the United States, Dr Marshall co-founded 6 successful companies in a range of markets including medical device which went public. Over the past 30 years, he has served as CEO/MD of 6 companies, and Chairman of 4. He was MD, then co-Chairman of Arasor which he took public in 2006. In 2007, Dr Marshall became MD of Southern Cross Venture Partners, a Silicon Valley VC firm specialising in Australian innovation. He has been a director of 20 private sector boards in Australia and the United States, including boards of 2 companies that were subsequently publicly listed. Dr Marshall is currently a Non‑executive Director of Fortescue Metals Group Limited (ASX:FMG).

Mr Dalbosco joined the Nanosonics Board in January 2025 following a distinguished executive career, most notably at EY, where he held senior leadership roles spanning multiple regions and functions, including Oceania Managing Partner and CEO, Asia Pacific Joint Deputy CEO, and Oceania Managing Partner – Transaction Advisory Services. Mr Dalbosco’s previous governance roles include Mercy Health & Aged Care, Berry Street Victoria and the Committee for Melbourne. Mr Dalbosco is currently a Non-executive Director at Medibank Private Ltd and serves as Chair of Melbourne Archdiocese Catholic Schools. He is also Chair of the Gillespie Family Council & Gillespie Family Foundation (founders/owners of Bakers Delight).