Ms Broadbent has had a career across the Australian business, public and arts sectors. She serves on the boards of Woolworths Limited, Macquarie Group Limited and Chancellor of the University of Wollongong. She was 15 years on the board of the Reserve Bank of Australia, the inaugural Chair of the Clean Energy Finance Corporation and was Chair of the board of Swiss Re Life and Health Australia Limited, a director on the boards of ASX Limited, Special Broadcasting Corporation (SBS), Qantas Airways Limited, Westfield Property Trusts, Woodside Petroleum Limited and Coca-Cola Amatil Limited.
She maintains an active interest in the arts, is a director of the Sydney Dance Company, and been on the boards of Sydney Theatre Company, NIDA, the Australian Brandenburg Orchestra and Art Gallery of NSW.
In 2019 she was made a Companion of the Order of Australia for her contribution to corporate, financial, clean energy and cultural organisations, to higher education and to women in business.