Our Story
Founded on Defence-grade systems expertise, Sunstone’s DNA is in IT strategy and secure architecture. We have a proven record of delivering complex projects for Defence and government, guided by intelligence and workforce subject matter experts, and strengthened by a trusted partner network. Today, we apply this foundation to Intelligence, IT Strategy, and Workforce Transformation, with secure, governed AI embedded into every solution.
Mission
Sunstone Advisory’s mission is to be the trusted partner for the Australian Government and Defence, delivering expert advisory and technology solutions that enhance Australia’s sovereign capability, strengthen national security, and empower our clients to achieve their strategic goals with precision and impact.
Vision
We aim to shape a safer, stronger, and more resilient Australia by driving innovation, fostering collaboration, and delivering world-class solutions. We aspire to be at the forefront of empowering Australian Government and Defence to navigate emerging challenges, build sovereign capability, and create a secure future for future generations.
Leadership
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Ash Thakur
Co-Founder and Chief Executive Officer
As Co-Founder and CEO of Sunstone Advisory, Ash is dedicated to enhancing Australia's sovereign capabilities and supporting national security through expert advisory and innovative technology solutions.
Ash’s professional background combines extensive leadership experience in strategic planning, enterprise architecture, and project delivery across various sectors.
He welcomes connections to discuss how Sunstone Advisory can help your organisation achieve its objectives and enhance its capabilities. -
James Ellis-Smith
Executive Director
James is an intelligence professional with over two decades of experience in the military, national intelligence community, and commercial roles. James is a former Army officer and is currently a PhD research candidate with the Australian National University.
Core Values
Sunstone Advisory’s core values are the foundation of everything we do.
They guide our decisions, shape our culture, and define our commitment to excellence:
Integrity
Sunstone Advisory upholds the highest ethical standards in all our interactions, ensuring honesty, transparency and accountability in all we do.
Client Focus
Your success is our priority. We strive to understand our client’s needs and deliver tailored solutions that exceed expectations.
Innovation
Sunstone Advisory is committed to continuous improvement and innovation in our services, and pride ourselves on our initiative to deliver creative, cutting-edge solutions that address complex challenges and drive progress.
Sustainability
Sunstone Advisory is committed to long-term impact, integrating environmental, economic, and social responsibility into our practices.
Collaboration
Sunstone Advisory works seamlessly with our clients and teams, fostering open communication and mutual respect to achieve shared goals.
Excellence
Sunstone Advisory pursues the highest standards in everything we do, delivering results that inspire trust and confidence.
These values drive us to create meaningful, lasting outcomes for our clients and contribute to Australia's national resilience.
Connect with us
We’d love to hear from you! Whether you’re seeking expert advice, exploring partnership opportunities, or simply have a question, our team is here to help.