Welcome to Climax Valuations and Forensics Pty Ltd

Climax Valuations and Forensics Pty Ltd is a chartered accounting firm specialising in business valuation and forensic accounting reports, predominantly as court experts for matters such as family law, shareholder disputes and economic damages. Reports are also prepared for various taxation purposes, sales, purchases, mergers and insolvency matters. Contact us today for a preliminary review of your situation and a fixed cost proposal with several options of scope to consider.

Trevor Monaghan – CEO, CA ANZ Business Valuation Specialist

Trevor Monaghan is an accredited Business Valuation Specialist under Chartered Accountants Australia and New Zealand (CA ANZ) with extensive experience in providing both technical and practical advice to business owners and the courts across all industries and locations. Trevor specialises in business valuations, forensic financial analysis, taxation advice and strategic planning. He is often called upon to prepare expert reports for matters requiring expertise in business valuations, financial analysis and taxation. He has written more than 1000 independent business valuation and forensic reports for various jurisdictions and has been cross-examined in various court jurisdictions.

His expert work has been predominantly for family law purposes due to the high demand but he has also regularly prepared reports for commercial litigation and many other purposes. In addition to expert work requiring affidavits or court attendance, Trevor also prepares numerous independent reports and forensic work for mediation of disputes, taxation, mergers and acquisitions.

Trevor also provides technical and practical seminars to solicitors in relation to business valuations and forensic accounting topics. He has provided technical and practical training to hundreds of legal firms and barristers around Australia. Trevor is also the founder and head software engineer of Valuation Ultimate, the leading business valuation software used by more than 500 business valuation firms worldwide to prepare their expert business valuation reports. The software includes a secure client portal.

Formal Qualifications

  • Accredited Business Valuation Specialist (CA ANZ)
  • Member and public practice certificate holder of CA ANZ #266168
  • Registered Tax Agent (Australia) #51503008
  • Diploma of Financial Planning (Kaplan Professional)
  • Certificate IV in Property Services (Business Broking)
  • Post-Graduate Diploma (Chartered Accountants Australia & New Zealand)
  • Bachelor of Commerce (University of Newcastle)
  • Bachelor of Economics (University of Newcastle)

Download a PDF copy of Trevor Monaghan’s CV


Mark Ross – Senior Business Valuer, CA ANZ Business Valuation Specialist

Mark Ross joined Climax Valuations and Forensics in early 2026 as a senior member of the valuations and forensics team. A highly credentialled business valuation and forensic accounting specialist, Mark brings an exceptional depth of expertise to the firm and works directly alongside principal valuer Trevor Monaghan on all complex matters. His appointment represents a significant strengthening of the firm’s ability to take on complex, high-stakes engagements across all valuation and forensic disciplines.

Mark holds the designation of Business Valuation Specialist with Chartered Accountants Australia and New Zealand (CAANZ). He is also a Registered Company Auditor (ASIC) and Registered Tax Agent (TPB), a rare combination of credentials that gives him an unusually broad and integrated technical foundation. Few practitioners hold all three designations simultaneously, and it is this breadth that enables Mark to approach valuation and forensic matters with a level of rigour and commercial insight that goes well beyond the numbers. He holds a Bachelor of Business with majors in Accounting and Finance, and has built his career across audit and assurance, and taxation and advisory engagements, before channelling that diverse experience into his specialist focus on business valuation and forensic accounting. That grounding across multiple disciplines means Mark brings a genuinely multi-dimensional perspective to every matter he works on.

Beyond his professional practice, Mark serves as a Director of Cancer Council ACT and has held the role of Chair of the Finance, Risk and Audit Committee for the organisation. These roles speak to Mark’s standing as a trusted professional beyond the walls of practice, someone sought out for his financial expertise, sound judgement, and ability to provide meaningful governance oversight in a high-responsibility environment. His board experience adds a further dimension to the commercial and strategic lens he brings to client matters at Climax Valuations and Forensics.

Formal Qualifications

  • Accredited Business Valuation Specialist (CA ANZ)
  • Member of Chartered Accountants Australia & New Zealand (CA ANZ)
  • Registered Tax Agent (TPB)
  • Registered Company Auditor (ASIC)
  • Graduate Diploma of Chartered Accounting (CA ANZ)
  • Certificate of Public Practice (CA ANZ)
  • Bachelor of Business (majoring in Accounting & Finance)

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Recent Client Testimonials

Valuation & Due Diligence

“I engaged Climax Business Strategies in a recent due diligence exercise for a company that I was looking to buy into. It was an absolute pleasure to work with Trevor. I found him to be very practical, thorough and easy to work with. He also engaged well with the target company and was always professional and patient. He added more value to the due diligence process than I was expecting and he provided powerful insights into their inner workings and quickly identified areas requiring further investigation. I felt confident having Trevor on my team. Trevor’s frequent and timely correspondence coupled with a convenient online portal for aggregating and sharing artifacts further simplified the engagement. I have no hesitation in recommending Climax Business Strategies to anyone wishing to conduct a due diligence investigation or just seeking a practical and honest business health review.”

Gavin Kawalsky

Business Valuation

“Not only did we receive a formal valuation which far exceeded our expectations, but Trevor’s detailed report gave us a completely new insight into the strengths (and more importantly weaknesses of the business).We are now using the valuation report as a checklist or template, for improving the profitability of the business in the future.”

Steve Devane

Strategic Planning & Tax

“Climax Business Strategies is a proactive Newcastle accounting firm that I recommend to anyone trying to grow their business and save tax. Trevor has a passion for understanding his clients’ businesses and I enjoy working with Trevor to develop strategies to continue to grow my own business. As a solicitor it’s important for me to have a relationship with a great accountant. I work closely with my own clients on succession planning and reducing business risks and it’s good to know that I have an accountant at call when needed that understands real business issues.”

Sam Roberts, Roberts Legal
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