Mark Muller

Assurance & Advisory | Public Private Partnerships | Digital Assurance and Advisory | Chair of HLB Mann Judd Australasian Association

Greater Sydney Area

About

I'm a senior partner in the Assurance & Advisory division at HLB Mann Judd Sydney, Chair of the HLB Mann Judd Australasian Association and an Executive Committee member of HLB International. With over 30 years experience in audit and corporate advisory, I bring deep technical expertise and strategic insight to clients across sectors and borders. My experience spans: - Leading audits for significant infrastructure PPPs and proponents, major construction subcontractors, and a substantial Australian precious metals refiner - Supporting well-known charities with tailored for-purpose audit approaches - Working with global clients across Australia, the Americas, Asia, Europe and the Middle East - Delivering asurance and advisory services in a broad range of industries, from thoroughbred horse studs to property investors, biotechs to junior explorers, insurance brokers to investment funds. - Driving innovation in digital assurance and advisory services - Leading the Sydney Assurance & Advisory division for over 15 years I’m passionate about delivering high-quality, forward-thinking solutions and building strong, collaborative relationships that drive meaningful outcomes. I like the work I do, I like the fantastic people in our HLB team, and I like our great clients who put their trust in us.

Experience

  • HLB Mann Judd (Full-time · 34 yrs 6 mos)
    • Chair - Australasian Association
      Jan 2026 - Present · 6 mos

    • Partner - Assurance & Advisory
      1992 - Present · 34 yrs 6 mos

      Audit and corporate advisory

  • Executive Committee Member at HLB International
    Dec 2025 - Present · 7 mos

  • Board Member at Lifeline Central West
    Jul 2024 - Present · 2 yrs

  • Accountant at Brogan and Partners
    1989 - 1992 · 3 yrs

  • Cadet Civil Engineer at State Transit Authority of NSW
    1985 - 1988 · 3 yrs

    Working and studying in the civil engineering field