Rudi van der Westhuizen CA
Founding Director - Trinity BCS · Fractional CFO.
I don't sell time — I deliver outcomes
Rudi is the Founding Director of Trinity BCS, delivering top tier financial support and accounting related services. His commercial experience sets him apart, providing businesses with true value, not just reporting numbers back. With over 20 years as a professional Chartered Accountant with senior financial leadership roles across Deloitte, Optus, Swissport, and Parratech, Rudi continuously develops best practices and instils practical financial controls and governance.
With a career spanning audit, advisory, commercial finance, FP&A, and CFO-level operations, Rudi has a rare breadth of technical accounting depth combined with sharp commercial instincts.
His value proposition is built on translating complex financial data into clear business decisions for boards, executives, and operators alike. He’s owned P&Ls over $1BN, led multi-disciplinary teams, and delivered meaningful cost reductions, revenue growth, and efficiency gains in highly competitive environments across Australia and Africa.
Rudi is passionate about bringing that enterprise-grade financial rigour to small and mid-sized businesses. He builds relationships with a foundation in trust and provides top-tier, Fractional CFO support that provides practical solutions to his clientele.
Rudi van der Westhuizen
Founding Director - Trinity BCS · Fractional CFO
Qualification
Chartered Accountant (CA)
Based
Sydney, NSW · Australia
What working with Trinity BCS delivers
- Financial clarity, fast. Gross profit visibility within weeks, not quarters.
- Confident decision-making. Pricing, expansion and investment decisions backed by forecasts and scenario analysis, not gut feel.
- Stronger financial control. Reduced debtor days, disciplined working capital and predictable month-end within months.
- Profitability you can see. Clear line of sight over which products, customers and locations create, or erode, margin.
- A finance function that scales. Processes, systems and internal capability that grow with the business instead of holding it back.
- Executive support when it counts. Board meetings, investor discussions, bank negotiations: senior representation exactly when you need it.
- A credible funding or exit position. Investor-ready models and due-diligence preparation that lift valuation potential and smooth the process.
Boutique by design: quality over quantity, every time
Businesses at every stage of growth looking to strengthen financial leadership and make more informed decisions.
- Business owners and executive teams who need strategic financial guidance, not just compliance reporting.
- Organisations navigating change, whether through growth, restructuring, succession, acquisitions or investment.
- Companies seeking greater financial clarity, improved reporting and stronger governance.
- Leadership teams wanting an experienced CFO perspective without the commitment of a full-time executive.
- Businesses committed to building long-term value through better financial strategy, planning and decision-making.
Commercial mindset, not compliance mindset
Strategy, Not Just Reports
Accountants focus on compliance and reporting. We work alongside your leadership team on strategy, performance and growth, turning financial data into decisions.
Advice You Can Act On
We don't hand over reports and leave. Every insight comes with a recommendation, an owner and a timeframe.
Flexible Engagement, Fixed-Fee Certainty
From one day a month to five days a week, face-to-face or virtual, on a predictable retainer. No recruitment fees, no lock-in contracts, no hidden costs.
We Strengthen Your Existing Team
We work hand-in-hand with your accountant, bookkeeper and internal finance staff, mentoring and upskilling rather than replacing. And as an independent partner, we challenge assumptions and reduce risk.
Ready to bring enterprise-grade
financial leadership to your business?
Let's start with a discovery conversation — no obligation, just a clear-headed assessment of where your business stands and how I can help.