About Us

 Our Vision

gold and navy

Leading Business Accountants & Tax Advisers help your business grow in a safe environment

The famous two pillars – gold and navy – in our corporate logo represent our vision with the meanings of “wealth” and “conservatism” being balanced. This means to us that “We carefully handle our clients’ money”. With this corporate vision, we endlessly pursue updating our knowledge and improve our system to meet the expectation of our clients and to position ourselves as the new benchmark in our profession in small business accounting and tax services specialists.

People at Quantum House lead the trend of professional services in accounting, taxation and business advisory areas by putting the clients’ interests first and continuously improving the quality of our works. We believe that the relationship we have built with our clients based on this principle made us as one of the leading boutique professional firms in Australia especially in taxation advisory and consulting, and this also made possible for us maintaining more than 95% of client retention rate over the last eight years.

Our first priority is to protect our clients’ interests without compromising the risks of regulatory compliance. For this reason, we take limitless professional responsibilities towards our services. For this, we often form a collaborated relationship with other professionals especially those from finance and legal sector without putting our own interest there.

Accounting profession survived with a long history of reporting focused. This means we are good at analysing and subsequent reporting with an approved format called the financial report. With the financial report, the tax is calculated, and with the financial report, banks lend money to businesses and individuals,  and with our report, the businesses are transferred and sold at certain prices. We know this is important.  However, as computer technology has evolved, this also massively impacts on our profession.Along with this new environment and the help of our software and knowledge partners, some of the future focused accounting firms first moved adopting the new arena of accounting and business services. We are one of them who adopted the future and growth focused with our “Predictive Intelligence System”. We now can tell our clients to be ready for the changes coming, guide them to manage the businesses in a way more predictable and growth focused. Our clients now see the benefits of real-time advice that our team provides.

Naturally conservative, but we are taking a step forward to offer you more proactive services. We are sure this is the way of accounting services should be as we believe this only delivers the real value to our clients.


Mr Ben Youn (Managing Director)

Ben Youn

Ben is a Director at Quantum House and an international cross border tax and accountancy expert. Ben assists clients in navigating the complexities of international trade and investments in accounting and risk perspective and the implementation of optimised cross-border taxation strategies.

Having practised in law and accounting in both public and commercial environments for the last twenty years Ben’s unique background and skill sets greatly contributes to our client services offerings delivering exceptional quality advice and real-world commercial solutions. Ben’s expertise is in the areas of business accounting, taxation, financial mechanisms and arrangements as well as international transaction support and advisory.

Ben’s experience is complimented by his time as head of finance for a major manufacturing company which has enabled him to understand the whole business value chain including manufacturing cost analysis and supply chain management. This ‘hands on’ approach helps Ben and his team understand the day to day requirements of business competing in an ever challenging, and global, commercial environment. Fluent in English and Korean, Ben lives in Sydney with his wife Sophia and two daughters.

Areas of Expertise 

 Qualifications & Membership

  • Bachelor of Law
  • Bachelor of Business
  • Graduate Diploma in Advanced Tax
  • Member of CPA Australia
  • Member of the Tax Institute (Chartered Tax Adviser) 
  • External Examiner from the Law Society of New South Wales



If you believe that you are the right person sharing your value with us, please visit the page Careers at Quantum to see the position availability.