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Board of Directors


Peter Turnbull Non-Executive Chairman    

Peter Turnbull

Non-Executive Chairman

Peter Turnbull is an experienced chairman and professional non-executive director of publically listed, unlisted public, not for profit and early stage companies – and is chair or a member of various audit, remuneration, governance and risk management board committees.


Peter has degrees in law and commerce and over 25 years successful senior executive and corporate legal experience with some of Australia’s largest (Top 10/50) listed public companies in the resources, energy and industrial sectors including at Newcrest Mining, BTR Nylex and Energex.

Peter also has significant corporate regulatory and government policy experience gained through working with the Australian Securities & Investments Commission early on in his career and later on as Director, Corporate Finance of the Securities & Futures Commission of Hong Kong.


Areas of particular expertise include strategic planning with a focus on achieving rapid growth through disruption of existing markets, technology commercialisation, designing and managing corporate governance and risk management systems, assisting earlier stage companies to become financially and commercially sustainable and managing companies toward and through major capital raising and liquidity events.


Peter is a regular speaker and writer on global governance issues and his wider experience includes significant exposure to managing complex multi-country operations and dealing with cross-cultural issues.

Current positions and directorships include:

  • Chairman, Calix Limited
  • Non-Executive Director, Karoon Gas Australia Ltd (ASX – KAR)
  • Non-Executive Director, Governance Institute of Australia
  • Chairman, Auxita Pty Ltd
  • Vice-President, Institute of Chartered Secretaries and Administrators (London)

Peter is an Adjunct Professor at the University of Queensland (Institute of Molecular Bio-science), a former President and Fellow of Governance Institute of Australia and a Fellow the Australian Institute of Company Directors.


Peter is Chairman of the Audit and Risk Management Committee.


 Jack Hamilton Non-Executive Director

Jack Hamilton

Non-Executive Director

Dr Jack Hamilton has over 30 years’ experience both locally and internationally in operations management covering refining, petrochemicals and gas production, marketing, strategy and liquefied natural gas project management.


Jack was previously CEO of Exergen Pty Ltd, a low emission coal resource development company and also formerly, Director of NWS Ventures with Woodside Energy overseeing one of Australia’s largest resource projects, the North West Shelf Project.


Jack is currently a nonexecutive director of Geodynamics Limited and DUET Group Ltd.


Jack holds a Bachelor of Chemical Engineering degree and a Doctorate of Philosophy (University of Melbourne).


Jack is Chairman of Calix’s Technology Committee and a Member of Calix’s Audit and Risk Management Committee. 



Lance O'Neil

Non-Executive Director

Lance O’Neill is a director of DFB (Australia) Pty. Ltd., a Sydney based investment advisor, and has worked in institutional equity and fixed income sales/trading as well as corporate finance in international securities and investment markets for over thirty years predominantly in Australia, UK and USA.


He is chairman of MediaZest Plc and EP&F Capital Plc and in addition a director of, and investor in, a number of private and public companies in Australia, UK, USA and  Asia.


He holds a BSc (Econ) Hons. degree in Accountancy and Law from the University of Wales and is an associate member of the Securities Institute of Australia.



David Zeiden

Non-Executive Director

David Zeiden is Och-Ziff Capital Management Group’s appointee to the Calix Board.


 Phil Hodgson Managing Director and CEO

Phil Hodgson

Managing Director and CEO

Phil has a strong technical and commercial background from a successful career with Shell, where for over 14 years he developed significant depth of experience across all key sectors of the Downstream oil industry including refining and supply, marketing and sales, pricing strategy, risk management, corporate strategy and portfolio project management.


From 2007 to 2013, Phil ran his own consultancy providing project development, commercial and M&A, and management expertise to a number of sectors including LNG, Biofuel, Clean Coal, Geothermal Energy, Building Products, Logistics and FMCG.


Phil completed a Bachelor of Chemical Engineering with Honours from the University of Sydney in 1988, and a PhD in Chemical Engineering from University of NSW in 1993.


Phil joined Calix as CEO in 2013, was appointed a Director in 2014, and is a member of Calix’s Technology Committee.


Mark Sceats Executive Director and Chief Scientist

Mark Sceats

Executive Director and Chief Scientist


Dr Mark Sceats is a qualified physical chemist with 40 years’ experience. He has degrees in Science (Hons 1st Class) and a PhD (University of Queensland).


Mark has previously worked at the James Franck Institute at the University of Chicago, and as an Assistant Professor of the University of Rochester NY, USA, where he was awarded the Alfred P Sloan Fellowship for his work. Later he was employed by the University of Sydney as a Reader in the School of Chemistry for his research work on chemical reaction kinetics. Mark has published more than 140 academic papers in physical chemistry, and is the inventor of 25 patented inventions.  


Mark was awarded the M.A. Sargent Medal of the Institute of Engineers Australia for his contributions to optical communications and the Centenary Medal of the Commonwealth of Australia for his contributions to Australian society.  He is a Fellow of the Australian Academy of Technological Sciences and Engineering, a Fellow of the Royal Australian Chemical Institute, and a Companion of the Institute of Engineers Australia.


Mark founded Calix in 2005, was re-elected as a Director in 2014 and is a member of Calix’s Technology Committee.