About GuardianOne.
For twenty years, we've been providing reliable IT support and building genuine partnerships with growing businesses across Australia. As cyber threats evolved and became more sophisticated, we recognised that our clients needed more than traditional IT support, they needed enterprise-level cyber security expertise delivered through the personal relationships they trusted.
Meet the Team Making
Things Happen Every Day.
Our team is made up of passionate professionals who bring their expertise and creativity to every project.

Leon Liberchuk
Director // CEO
With nearly two decades of IT leadership experience, Leon Liberchuk drives GuardianOne’s vision as Director and CEO, blending technical expertise with a passion for business growth. His pioneering work at IT Grade Pty Ltd, specialising in tailored IT solutions for Australian enterprises, now powers our cyber-first model; ensuring mid-tier businesses gain enterprise-grade security to thrive securely. Leon’s commitment to innovation and mentorship fosters a "Future Ready" culture that directly safeguards your growth.

Stephen Bowtell
Director // CTO
Stephen Bowtell brings over 20 years of cyber security and technology strategy expertise to GuardianOne as Director and Chief Technology Officer, empowering organisations to navigate evolving threats with confidence. Educated at Harvard University and a Cyber Security Network Partner of the Australian Signals Directorate, he leverages his experience from Cyber Active to craft compliance-driven solutions that reduce risks and enhance resilience for Australian businesses. Stephen’s focus on genuine partnerships ensures your technology investments align with measurable business outcomes.
Meet the Team Making
Things Happen Every Day.
Our team is made up of passionate professionals who bring their expertise and creativity to every project.

Leon Liberchuk
Director // CEO
With nearly two decades of IT leadership experience, Leon Liberchuk drives GuardianOne’s vision as Director and CEO, blending technical expertise with a passion for business growth. His pioneering work at IT Grade Pty Ltd, specialising in tailored IT solutions for Australian enterprises, now powers our cyber-first model; ensuring mid-tier businesses gain enterprise-grade security to thrive securely. Leon’s commitment to innovation and mentorship fosters a "Future Ready" culture that directly safeguards your growth.

Stephen Bowtell
Director // CTO
Stephen Bowtell brings over 20 years of cyber security and technology strategy expertise to GuardianOne as Director and Chief Technology Officer, empowering organisations to navigate evolving threats with confidence. Educated at Harvard University and a Cyber Security Network Partner of the Australian Signals Directorate, he leverages his experience from Cyber Active to craft compliance-driven solutions that reduce risks and enhance resilience for Australian businesses. Stephen’s focus on genuine partnerships ensures your technology investments align with measurable business outcomes.
Meet the Team Making
Things Happen Every Day.
Our team is made up of passionate professionals who bring their expertise and creativity to every project.

Leon Liberchuk
Director // CEO
With nearly two decades of IT leadership experience, Leon Liberchuk drives GuardianOne’s vision as Director and CEO, blending technical expertise with a passion for business growth. His pioneering work at IT Grade Pty Ltd, specialising in tailored IT solutions for Australian enterprises, now powers our cyber-first model; ensuring mid-tier businesses gain enterprise-grade security to thrive securely. Leon’s commitment to innovation and mentorship fosters a "Future Ready" culture that directly safeguards your growth.

Stephen Bowtell
Director // CTO
Stephen Bowtell brings over 20 years of cyber security and technology strategy expertise to GuardianOne as Director and Chief Technology Officer, empowering organisations to navigate evolving threats with confidence. Educated at Harvard University and a Cyber Security Network Partner of the Australian Signals Directorate, he leverages his experience from Cyber Active to craft compliance-driven solutions that reduce risks and enhance resilience for Australian businesses. Stephen’s focus on genuine partnerships ensures your technology investments align with measurable business outcomes.


The Foundation of
Every Partnership.
Our core values guide everything we do, they ensure we deliver complete technology confidence, empowering our staff and your business to grow securely in Australia's dynamic cyber landscape.
Our core values guide everything we do, they ensure we deliver complete technology confidence, empowering our staff and your business to grow securely in Australia's dynamic cyber landscape.
Empowered People
We believe in empowering our team and your employees to be the strongest line of defence. Through targeted security awareness training and direct access to senior experts, we foster a culture of confidence and capability. This value drives our Cyber First Protection, turning potential vulnerabilities into empowered strengths for your organisation.
Empowered People
We believe in empowering our team and your employees to be the strongest line of defence. Through targeted security awareness training and direct access to senior experts, we foster a culture of confidence and capability. This value drives our Cyber First Protection, turning potential vulnerabilities into empowered strengths for your organisation.
Empowered People
We believe in empowering our team and your employees to be the strongest line of defence. Through targeted security awareness training and direct access to senior experts, we foster a culture of confidence and capability. This value drives our Cyber First Protection, turning potential vulnerabilities into empowered strengths for your organisation.
Promises Kept
Reliability is non-negotiable; we deliver on every commitment with guaranteed SLAs, 24/7 monitoring and seamless incident recovery. Our track record of zero data loss and rapid resolutions proves it. This principle underpins our Comprehensive Managed IT services, ensuring your operations run smoothly without surprises.
Promises Kept
Reliability is non-negotiable; we deliver on every commitment with guaranteed SLAs, 24/7 monitoring and seamless incident recovery. Our track record of zero data loss and rapid resolutions proves it. This principle underpins our Comprehensive Managed IT services, ensuring your operations run smoothly without surprises.
Promises Kept
Reliability is non-negotiable; we deliver on every commitment with guaranteed SLAs, 24/7 monitoring and seamless incident recovery. Our track record of zero data loss and rapid resolutions proves it. This principle underpins our Comprehensive Managed IT services, ensuring your operations run smoothly without surprises.
Relationships First
We build genuine partnerships, not vendor relationships, with client relationships of 16+ years. When you call, you speak directly to engineers who know your business and understand your industry. This means your technology decisions are made by people who care about your success, not just another support ticket.
Relationships First
We build genuine partnerships, not vendor relationships, with client relationships of 16+ years. When you call, you speak directly to engineers who know your business and understand your industry. This means your technology decisions are made by people who care about your success, not just another support ticket.
Relationships First
We build genuine partnerships, not vendor relationships, with client relationships of 16+ years. When you call, you speak directly to engineers who know your business and understand your industry. This means your technology decisions are made by people who care about your success, not just another support ticket.
Excellence Always
We bring the highest standards to every interaction, backed by ISO 27001 Information Security Certification and proven by measurable results. From AI-powered platforms to proactive maintenance, we deliver superior outcomes consistently. This means your business runs smoother, safer, and more efficiently than you thought possible.
Excellence Always
We bring the highest standards to every interaction, backed by ISO 27001 Information Security Certification and proven by measurable results. From AI-powered platforms to proactive maintenance, we deliver superior outcomes consistently. This means your business runs smoother, safer, and more efficiently than you thought possible.
Excellence Always
We bring the highest standards to every interaction, backed by ISO 27001 Information Security Certification and proven by measurable results. From AI-powered platforms to proactive maintenance, we deliver superior outcomes consistently. This means your business runs smoother, safer, and more efficiently than you thought possible.
Future Ready
In a world of evolving threats, like rising BEC scams, we anticipate and adapt to keep you ahead. Our forward-thinking strategies include cloud integrations and compliance roadmaps that scale with your ambitions. This value embodies our cyber-first ethos, preparing your business for tomorrow's challenges today.
Future Ready
In a world of evolving threats, like rising BEC scams, we anticipate and adapt to keep you ahead. Our forward-thinking strategies include cloud integrations and compliance roadmaps that scale with your ambitions. This value embodies our cyber-first ethos, preparing your business for tomorrow's challenges today.
Future Ready
In a world of evolving threats, like rising BEC scams, we anticipate and adapt to keep you ahead. Our forward-thinking strategies include cloud integrations and compliance roadmaps that scale with your ambitions. This value embodies our cyber-first ethos, preparing your business for tomorrow's challenges today.


GuardianOne Method for flawless execution.
GuardianOne Method for flawless execution.
01 Assess
We begin by identifying risks, needs, and opportunities to fully understand your security landscape.
02 Architect
Tailored solutions are designed to align with business goals while addressing vulnerabilities with precision.
03 Implement
Technology and processes are deployed efficiently, ensuring accuracy and minimal disruption to operations.
04 Monitor
Continuous monitoring maintains system integrity, tracking performance and detecting threats early.
05 Evolve
We adapt and continually refine solutions over time to keep you ahead of emerging risks and evolving challenges.




FAQ
FAQ
Frequently
Asked Questions.
Have questions? Our FAQ section has you covered with
quick answers to the most common enquiries.
Have questions? Our FAQ section has you covered with quick answers to the most common enquiries.
How much does cyber-first IT support cost?
What makes GuardianOne different from other IT providers?
How do you protect my business from ransomware?
What's included for professional services firms?
How quickly do you respond to urgent issues?
Can you help with compliance and certifications
Why not just use separate IT and security providers?
How do you stop Business Email Compromise attacks?
How quickly can we get started?
How much does cyber-first IT support cost?
What makes GuardianOne different from other IT providers?
How do you protect my business from ransomware?
What's included for professional services firms?
How quickly do you respond to urgent issues?
Can you help with compliance and certifications
Why not just use separate IT and security providers?
How do you stop Business Email Compromise attacks?
How quickly can we get started?

FAQ
Frequently
Asked Questions.
Have questions? Our FAQ section has you covered with
quick answers to the most common enquiries.
How much does cyber-first IT support cost?
What makes GuardianOne different from other IT providers?
How do you protect my business from ransomware?
What's included for professional services firms?
How quickly do you respond to urgent issues?
Can you help with compliance and certifications
Why not just use separate IT and security providers?
How do you stop Business Email Compromise attacks?
How quickly can we get started?