Abacus Advisory is a boutique firm that provides practical, high-quality financial, risk and sustainability support. We operate across two core service streams: Corporate Sustainability and Small Business Accounting and Advisory. Our goal is to give our clients clarity, structure and confidence at every stage of their journey.

We combine corporate-level expertise with a simple and practical approach. Whether we are helping an organisation meet AASB S2 Climate Reporting Requirements, or supporting a small business owner to organise their finances and strengthen their governance processes, our focus remains the same. We make complex areas easy to understand and provide the systems and insights needed for confident decision-making.

Abacus Advisory bridges the gap between big-firm capability and real-world practicality. No jargon, no unnecessary complexity. Just honest, high-quality support that helps you run your business or sustainability function properly.

Derek Ramnuth (right) is the Founder of Abacus Advisory Group and a finance and risk professional with experience across Deloitte, Visa INC and Kildare Ministries. He specialises in accounting, sustainability reporting and governance and brings a practical, straightforward approach to helping businesses build clarity and confidence in their financial and risk practices.