HLB Mann Judd has appointed Mark Muller, senior partner in the Assurance and Advisory division of HLB Mann Judd Sydney, as chair of the HLB Mann Judd Australasian Association, effective 1 January 2026.

With more than three decades of experience in audit and corporate advisory, Mark brings deep technical expertise and commercial insight to the role. For over 15 years he has led HLB Mann Judd Sydney’s Assurance and Advisory division, guiding clients through complex challenges and helping them seize opportunities for growth.

Mark has played a pivotal role in shaping the Association’s capabilities, steering the network’s technical capabilities and audit approach for over 10 years. He has led audits across significant infrastructure Public Private Partnerships and proponents, major construction subcontractors, a substantial Australian precious metal refiner, and numerous well-known charities, applying a purposeful and tailored audit approach. He championed innovation in the Sydney firm, expanding digital assurance and advisory offerings to meet the evolving needs of businesses.

“I am privileged to step into the role of chair and work alongside our member firms to strengthen the Association and lead it into its next phase of growth,” he said.

“Our profession is changing rapidly, and the challenges facing businesses are increasingly complex. My priority is to champion initiatives that drive innovation, raise the bar on quality, and create tangible value for our people and the clients who trust us to help them succeed.”

Mark succeeds current chair, Tony Fittler, who will continue as senior tax partner at HLB Mann Judd Sydney.

Tony Fittler has been a cornerstone of the firm since 1984, becoming partner in 1989, managing partner in 2006, and chair of the Association in 2010. Reflecting on his tenure, Tony said:

“It has been a privilege to serve as chair and to work alongside such a dedicated and talented team across our network. Seeing the Association grow has been incredibly rewarding, and I’m confident that under Mark’s leadership, we will continue to thrive, innovate, and deliver value to our people and clients”.

The HLB Mann Judd network comprises 12 independent member firms across Australia, New Zealand and Fiji, as well as one representative firm. Together we combine local knowledge with global reach to help our clients make their next best move.

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