Financial Clarity. Workplace Cancer
Advocacy. Purpose-Driven Leadership. Senior financial advisory for growing businesses and accounting practices. Workplace advocacy for people and organisations navigating cancer. One practice, built on purpose. EXPLORE OUR SERVICES
GNS Strategic Advisory provides

Senior CFO advisory, professional practice advisory, and workplace cancer advocacy.

Founded by Niranjala Siriwardena, a dual-qualified Chartered Accountant (CA
ANZ, ICAEW) and Chartered Tax Adviser (CTA) with over 13 years of public practice experience, advising industry and government clients.

We work with mid-market businesses seeking financial clarity, accounting firms planning for succession, compliance and growth, and individuals and organisations navigating cancer in the workplace."

About us
Years Experience
Audit-Ready Reporting Engagements
Cancer Advocacy Organisations Engaged

Niranjala Siriwardena

I believe every business deserves financial leadership that sees the full picture, not just the numbers. And I believe every person facing cancer deserves a workplace that stands with them, not against them. I built GNS Strategic Advisory because I experienced firsthand what happens when workplaces fail their people during cancer, and I know what it takes to change that.

Niranjala Siriwardena Founder & Principal | CA ANZ · ICAEW · CTA
OUR PRACTICE

Three streams. One practice. Built on purpose.

For the moment when spreadsheets and gut feel aren't enough — but a full-time CFO isn't the answer. Senior financial leadership for growing businesses ready to scale with confidence.

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For firm principals making the decisions that will shape the practice's next decade — succession, growth, technology, compliance. Operational guidance grounded in public practice experience.

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When cancer enters working life, what happens next shouldn't depend on luck. We guide individuals and organisations through it — with lived experience and senior professional judgement.

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The values we stand on.
Guided by integrity.
Driven by purpose.

Every engagement is shaped by the values we hold
— and the people we serve.

Integrity

Speaking up for what’s right.

Impact

Delivering outcomes that matter.

Care

Empathy and respect, always.

Excellence

Precision and quality in everything we deliver.

Resilience

Rising from challenges, helping others rise.

Recognised Professional Credentials

Trusted. Qualified. Globally recognised.

Dual-qualified Chartered Accountant (CA ANZ, ICAEW) and Chartered Tax Adviser — credentials that span Australian, UK, and international reporting standards.

Let’s talk about what’s possible

Financial clarity.
Practice strength.
Workplace cancer advocacy. Start here.

Every good engagement starts with a conversation. Tell us what you're navigating, and we'll tell you honestly whether and how we can help.

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