Infrastructure Australia’s Commissioners are responsible for setting the objectives, strategies and policies of the organisation. The Commissioners are the Accountable Authority of Infrastructure Australia and oversee the proper, efficient and effective performance of the organisation’s functions.


Gabrielle Trainor AO 

Interim Chief Commissioner

Gabrielle Trainor is a non-executive director and advisor with more than 25 years’ experience on boards ranging from infrastructure, transport and urban renewal to sports, arts and culture and empowerment of Aboriginal and Torres Strait Islander people.   

Among her current appointments, Ms Trainor is a director of the Western Parkland City Authority and chair of the Construction Industry Culture Taskforce. She is a commissioner of the Australian Football League. Gabrielle is a director of Built Group Holdings Pty Ltd and of listed investment company WAM Global Ltd. She is a trustee of the Charlie Perkins Trust. She a Fellow of the Australian Institute of Company Directors and in 2017, was named an Officer of the Order of Australia. 


Clare Gardiner-Barnes

Clare Gardiner-Barnes

Interim Commissioner

Clare Gardiner-Barnes runs an executive coaching and consulting business, CGB Consulting. Prior to that she worked as Head of Strategy, Planning, and Innovation at Infrastructure NSW and as Deputy Secretary, Freight, Strategy and Planning at Transport for NSW. Clare provided advice to government, transport and construction sectors on safety, funding priorities, planning, freight, and national policy. 

Clare has held board positions at the NSW Telco Authority, Austroads and Roads Australia. She has worked in government executive positions including Qld Education and was the CEO of the Department of Transport and the Department of Children and Families in the NT. Clare is an advocate for diversity and inclusion, women in leadership and workforce flexibility.