Assurance Advisory Group Pty Ltd (AAG)
Preston Bayley is an experienced executive in the field of internal audit and risk management, currently serving as the Executive Director at Assurance Advisory Group Pty Ltd since April 2025. Prior to this role, Preston held significant positions including Head of Internal Audit at Synergy from March 2022 to April 2025, and Director of Internal Audit for the APAC and India regions at Worley from May 2017 to March 2022. A strong background in operational and regulatory risk management was established during a tenure as Senior Manager at Bankwest (November 2014 - November 2016) and as Internal Audit Senior Manager at Ernst & Young (March 2003 - October 2014). Early career experiences include roles as Senior Internal Auditor at GMAC Bank and Internal Auditor at Stantons. Preston holds a Graduate Diploma in Accounting from the Institute of Chartered Accountants in Australia and a Bachelor of Commerce in Accounting from Curtin University.
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Assurance Advisory Group Pty Ltd (AAG)
We are a cohesive group of experienced professionals who focus on making a real contribution to our clients through a comprehensive range of strategic, operational, financial and business advisory, and assurance services. With AAG, clients will work with mature and highly credentialed people each with many years’ experience across many sectors, with small, medium and major companies and government entities. The scale of projects we deliver includes small ad-hoc assignments, co-sourced, outsourced, virtual and as a service.