Ms Broadbent is a director of Macquarie Group Limited. She has served on the Boards of the Reserve Bank of Australia, the Clean Energy Finance Corporation as inaugural Chair, Swiss Re Life and Health Australia Limited, Woolworths Limited, ASX Limited, Special Broadcasting Corporation (SBS), Qantas Airways Limited, Westfield Property Trusts, Woodside Petroleum Limited and Coca-Cola Amatil Limited.
She was Chancellor of the University of Wollongong and maintains an active interest in the arts. She is currently a director of the Sydney Dance Company.
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.