People‑First Cyber security & ICT Solutions for Government & Critical Infrastructure
Cleared experts building resilient ICT & cyber solutions for complex government and infrastructure needs.
Cyber security Engineering
Secure‑by‑design architecture, threat detection and vulnerability remediation aligned to ISM, PSPF and Essential Eight.
Complex ICT Project Delivery
End‑to‑end planning, governance and delivery of multi‑stream ICT programmes in regulated environments.
Operational Technology (OT) Security
Segmentation, hardening and continuous monitoring for critical‑infrastructure OT environments.
Governance, Risk & Compliance Management (GRC)
Regulatory compliance (ISM, NIST, ISO 27001) and risk frameworks tailored to government and enterprise needs.
Remediation & Recovery
Rapid stabilisation of high‑risk or stalled programmes, with stakeholder realignment and accelerated delivery.
Why Calexi?
End‑to‑End Accountability
From strategy and design through to training and handover, we own the results.
Transparent Communication
Regular reporting and clear governance to keep projects on track and on budget.
Tailored Delivery Approach
We adapt our methodology to fit your organisation’s style and objectives, ensuring predictable, outcome‑focused delivery.
People‑First Approach
Ensures stakeholder buy‑in and long‑term sustainability.
Deep Defence & Government Experience
Real‑world insights from years of high‑assurance ICT delivery.
Security‑Cleared Consultants
Ready‑to‑deploy resources for sensitive government and regulated projects.
Featured Work
“Calexi Staff trained our team. Their hands on approach to training and cyber security learning through experience. Was unique and beneficial. The team still remarks about the unique insites into social engineering that the Calexi team delivered with passion.” – Federal Government
“Our Organisation was in trouble. We needed a rapid assessment of where our technology maturity was at and where to invest our budget to maximise impact. Calexi staff rapidly conducted this assessment saving identifying critical gaps and millions of dollars in project licencing duplication.” – ASX Listed Company
“Calexi staff got our major critical infrastructure project back on track. Months behind schedule relationships were failing with our client. Calexi was able to use their people first approach to rebuild the relationship and get results fast.” – Critical infrastructure Partner
Let’s work together on your
next project
Every project is a journey, and we are here to guide you every step of the way.