Sovereign Software Development
Mission-critical software on Australian soil by security-cleared full-stack engineers — sovereign, scalable, and ready from prototype through production.
Engineering sovereign capability
Advanced technology. Sovereign outcomes.
SolStak is an Australian-owned company specialising in cutting-edge ICT services. We deliver cyber security, AI, cloud, systems integration, and mission systems engineering for Defence and critical enterprises — with seasoned professionals bringing 20+ years of enterprise experience.
Australian Owned
Sovereign · Secure · Trusted
What we do
Capability that delivers.
Our consulting process begins with a thorough assessment of your current infrastructure, workflows, and pain points — then we engineer end-to-end solutions that unite stakeholders, technology, and mission outcomes.
Sovereign AI
Sovereign AI backed by our in-house Data Scientist — academia partnerships, rapid prototyping, GPU platforms, custom models, and end-to-end RAG.
Cyber & IRAP
NIL-cost IRAP assessment proposals, proven support for companies and vendors, and IRAP consultants, assessors, and advisers ready when you need them.
Mission Systems
From stakeholder discovery and qualified user stories through journey mapping to integration and delivery — proven across Defence, government, and enterprise.
Cloud Transformation
Cloud architects and engineers across AWS, Azure, GCP, OpenShift, OpenStack, and VMware — estate mapping, OSI assessment, and the 6 Rs.
Project Recovery
Combining industry insights with deep requirements analysis to assess, plan, implement, and monitor recovery actions — restoring stakeholder confidence.
About SolStak
ICT architecture, engineering & cyber — delivered with purpose.
SolStak is an Australian-owned ICT consultancy specialising in architecture, engineering, networks, cyber security, and assessments. What began as a project recovery practice has grown into a sovereign consultancy and delivery team—trusted when programmes are in distress and equally valued for greenfield design, build, and assurance work across Defence, government, and enterprise.
We are a serious engineering outfit: our people work fast, communicate plainly, and have the agility to change direction when the mission demands it—without losing control of scope, security, or quality. We love a good conversation—and we are happy to offer frank, free advice when you want a straight technical view, with no obligation to engage. We enjoy building the next generation of ICT technology: in the missions we deliver, the platforms we engineer, and the people we grow. Many of our leads bring 20+ years from the enterprise sector; all share a bias for delivery over slideware.
As a Defence Industry Security Program (DISP) member, we support employees and sub-contractors in obtaining required security clearances—and work with industry leaders including Defence, DST, and leading consultancies across Australia.
Work With UsCollaborations
Trusted by industry leaders.
SolStak works with the best in the industry to bring leading solutions to your organisation.
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