About
Thrive Integrity provides whistleblowing advisory and training services tailored for corporations, public sector and not-for-profit organisations to help them promote legal and ethical conduct.
Lauren Witherdin
Owner and Principal
"Integrity isn't just a moral choice; it's a strategic advantage that leads to stronger financial performance and sustainable growth"
Lauren is a Chartered Accountant and recognised specialist in whistleblowing and integrity frameworks, with more than 20 years experience in forensic consulting and whistleblowing services.
She has advised organisations across the private, public and not-for-profit sectors, ranging from mid-sized organisations to large corporates and public-sector entities. Her previous roles include CEO of a national independent whistleblowing provider and Director in the forensic practice of a Big Four firm.
Together with her background in fraud investigations and risk management, Lauren brings a practical understanding of the operational, governance and human aspects of whistleblowing frameworks.
Lauren established Thrive Integrity to help organisations build practical whistleblowing programs that are trusted and effective. She works closely with boards, senior executives and program owners to strengthen reporting pathways, improve organisational response and support good governance.
Her insights have contributed to Australia’s whistleblower law reform process over the last decade, including appearing before the Senate inquiry into the Whistleblower Protection Authority Bill in 2025. Lauren is a regular speaker at governance and industry forums.
Our Story
The origin of Thrive Integrity dates back to the 2000s when Lauren spent the early years of her career investigating fraud and misconduct cases in Australia and Asia. These experiences revealed a troubling pattern: the conduct often persisted undetected for years, with at least one bystander turning a blind eye. This insight ignited Lauren's determination to help organisations establish more effective whistleblower programs and to improve Australia's whistleblowing laws. Recognising the practical complexities in this area, Lauren saw an opportunity to guide both leaders and employees through this sensitive terrain. Today, Thrive Integrity offers specialised whistleblowing advisory services and corporate training for corporations, public sector entities, and not-for-profit organisations throughout Australia.
