Chair since March 2023, Independent Non-executive Director since March 2022
Mr Menhinnitt is an experienced director and former senior executive with extensive domestic and international experience in large infrastructure development and urban regeneration, investment management, construction, asset services, operations and maintenance.
Mr Menhinnitt held several senior roles over a 30-year career with Lendlease, including as Chief Executive Officer of Lendlease Australia.
Mr Menhinnitt is currently a Non-executive Director of The GPT Group and Chairman of Fluent Property Pty Ltd.
Mr Menhinnitt holds a Bachelor of Engineering (Mechanical) and Master of Business (Applied Finance), both from the Queensland University of Technology.
He is a member of the Australian Institute of Company Directors and a Fellow of the Governance Institute of Australia.
Mr Menhinnitt lives on the Sunshine Coast.
Managing Director and Chief Executive Officer since February 2023
Acting Chief Operating Officer, Transport & Infrastructure since 15 September 2025
Mr Tompkins was formerly Chief Operating Officer of Downer and prior to that was CEO and Managing Director of Spotless Group Holdings Limited.
Mr Tompkins has extensive experience in infrastructure, construction and maintenance services, both as an operational and Group executive.
Mr Tompkins joined Downer in 2008 and was appointed General Counsel in 2010.
Mr Tompkins holds a Bachelor of Laws and Bachelor of Commerce from Deakin University.
Mr Tompkins lives in Sydney.
Independent Non-executive Director since July 2024
Mr Barker is an experienced Non-executive Director and senior executive with experience in finance, risk management, corporate structuring including mergers, acquisitions and divestments, and systems transformation in complex multi-jurisdictional environments in the engineering, services and technology sectors.
Mr Barker has 14 years’ experience as a Chief Financial Officer of ASX-listed multinational companies including Computershare Ltd and Cardno Ltd. Prior to this he held senior financial leadership positions with global corporations including BHP and Cisco Systems.
Mr Barker is currently a Non-executive Director of Workpac Group and Mastermyne Group Limited. Mr Barker has previously served as a Non-executive Director of Independent Cement & Lime Group.
Mr Barker holds a Bachelor of Commerce from the University of Queensland, a Master of Business Administration from Heriot-Watt University and is a graduate of the Wharton School of the University of Pennsylvania’s Advanced Management Program. He is a member of the Australian Institute of Company Directors and is a Fellow of CPA Australia.
Mr Barker lives in Brisbane.
Independent Non-executive Director since October 2023
Ms Broadbent is an experienced Non-executive Director and senior executive with a background in business strategy, technology, business development, and health and safety in the utilities and telecommunications sectors. Having worked in both Australia and New Zealand and being based in Auckland, Ms Broadbent brings a deep understanding of the New Zealand market.
Ms Broadbent has held Chief Executive and senior executive roles in the energy, telecommunications and engineering sectors in the Asia Pacific region, including with Downer in Australia and New Zealand from 2007 to 2011.
Ms Broadbent is currently a Non-executive Director of NZX-listed Spark New Zealand and is the Chair of the Business Leaders’ Health & Safety Forum in New Zealand.
Ms Broadbent has previously served as the Chair of Kordia Group, Chair of Pipeline and Civil Ltd, Non-executive Director of publicly-listed Manawa Energy Ltd, and independent director of Transpower, Kaingaroa Timberlands and Waka Kotahi New Zealand Transport Authority, and as a member of the New Zealand Government’s Cyber Security Advisory Committee.
Ms Broadbent holds a Bachelor of Commerce from the University of Auckland and is a graduate of Harvard Business School’s Advanced Management Program and is chartered member of both the Australian Institute of Company Directors and the New Zealand Institute of Directors.
Ms Broadbent lives in Auckland.
Independent Non-executive Director since November 2025
Ms Carey has more than 20 years’ experience as a senior executive, where she has led multi-billion-dollar operational businesses in the logistics, supply chain, government and security sectors in Australia and internationally. This included five years as CEO of Linfox Logistics and Linfox Armaguard.
Ms Carey is experienced in strategy development, mergers and acquisitions, business transformation including digital transformation, project governance and commercial negotiations.
Ms Carey is currently a Non-executive Director of ASX listed Sigma Healthcare, Kinetic Group and a former Non-executive Director of National Intermodal.
Ms Carey holds a Bachelor of Laws and a Bachelor of Arts from Monash University.
Ms Carey lives in Melbourne.
Independent Non-executive Director since September 2025
Ms Gleeson is an experienced Chair and Non-executive Director in the industrial, mining and resources sectors, with over 25 years of ASX experience as a director, senior executive and board advisor, working nationally and internationally.
Ms Gleeson spent over 15 years in private corporate legal practice before a successful senior executive career with an ASX listed global chemicals and explosives Group.
Ms Gleeson is currently the Chair of St Barbara Limited and a Non-executive Director of Australian Strategic Materials Ltd and Chrysos Corporation Ltd and a former Non-executive Director of 2 ASX listed companies, including New Century Resources Ltd, a former Chair of Trinity College, University of Melbourne and is a former member of the ASIC Director Advisory Panel.
Ms Gleeson holds a Bachelor of Laws from the University of Essex.
Ms Gleeson is a fellow of the Australian Institute of Company Directors.
Ms Gleeson lives in Melbourne.
Independent Non-executive Director since April 2022
Dr Howse has extensive senior executive and non-executive experience in the infrastructure, energy and resources, construction, data centres, telecommunications and property sectors.
Dr Howse held several senior roles with CIMIC, including Chief Strategy Officer.
Dr Howse is currently a Non-executive Director of Macquarie Technology Group Limited, Scalare Partners, Sydney Desalination Plant Pty Limited and BAI Communications.
Dr Howse has previously served on the boards of Design Studio Group, Ventia, Nextgen Holdings and Manila North Tollroads Corporation.
Dr Howse holds a Bachelor of Science and Doctor of Philosophy (Mathematics) from the University of Queensland, an executive MBA from IMD, Switzerland and a Graduate Diploma of Applied Finance and Investment. She is a member of the Australian Institute of Company Directors.
Dr Howse lives in Sydney.
Independent Non-executive Director since September 2023
Mr MacDonald was formerly the Managing Director of Zinfra and prior to that held several senior executive roles in Transfield Services Limited, including Chief Executive Officer for Marketing and Investments where he led mergers and acquisitions including their integration and transformation, Chief Executive Officer of Transfield Services Infrastructure Fund and Chief Strategy Officer.
Mr MacDonald is currently a Non-executive Director of Ausgrid, Chair of ERIC Alpha Holdings and its subsidiaries, Chair of Intera Renewables and a member of Palisade Investment Partners Investment committee and the Water NSW Asset Advisory Group.
Mr MacDonald holds a Bachelor of Civil Engineering (Hons) from Melbourne University and is a member of the Australian Institute of Company Directors.
Mr MacDonald lives in Sydney.