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Three glowing blue hexagons labelled PSPF, ISM, and E8 interconnected by fine digital lines on a dark blue background, representing integrated governance, risk, and compliance frameworks for Defence and government assurance.

Governance, Risk and Compliance (GRC) for Government, Critical Infrastructure and Industry

Simplify compliance. Reduce audit friction. Achieve certification with confidence.

Speak with Calexi’s GRC specialists and take control of your security obligations today.

Regulatory compliance should enable business, not hinder it. At Calexi, we help government, Defence, and critical infrastructure clients translate complex frameworks into clear, practical actions. Our Governance, Risk and Compliance (GRC) services provide expert support across PSPF, ISM, NIST, Essential Eight, and ISO 27001.

We start with where you are — conducting structured gap analyses, risk assessments, and maturity reviews. From there, we deliver tailored compliance roadmaps, policy and procedure development, and ongoing audit readiness support.

Our consultants work side by side with your teams to strengthen governance, embed defensible controls, and reduce uncertainty in high-assurance environments. Whether you need support preparing for certification, securing an Authority to Operate, or aligning with updated mandates, Calexi brings the clarity, rigour, and assurance you need.

A professional compliance consultant in a navy blazer uses a digital tablet while holographic icons for PSPF, ISM, ISO 27001, and E8 appear beside her, representing Calexi’s structured Governance, Risk and Compliance services for Defence, government, and critical infrastructure.

Key Service Features

  • PSPF and ISM compliance readiness
  • Authority to Operate (ATO) and accreditation support
  • ISO 27001 and NIST alignment
  • Essential Eight maturity uplift
  • Detailed risk and control assessments
  • Policy and procedure development
  • Compliance roadmaps and implementation support
  • Regulatory and audit preparation
  • Secure system documentation
  • Executive and board-level reporting

Proven Capability in the Field

  • A glowing digital shield with a central padlock symbol, surrounded by eight evenly spaced turquoise-blue nodes connected in a circular pattern. The background features a dark blue gradient with subtle circuit lines, symbolizing cyber security, Essential Eight compliance, and Defence-level protection.

    SME Essential Eight Compliance

    A Defence industry SME required Essential Eight compliance to execute a Defence contract. Calexi delivered a full uplift in just four weeks, achieving ML1 across all areas, ML3 in key controls, and DISP membership within 3 months — reducing risk from very high to low/medium.

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  • Cyber Tabletop Exercises

    Defence required cyber exercises that reflected its unique environment and policies. Calexi delivered dynamic cyber tabletop exercises that improved response plans, created new playbooks, and uplifted staff readiness. The program trained 15 incident managers and received exceptional feedback for its realism — with lessons equally applicable to critical infrastructure operators.

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  • Abstract cyber security illustration with a glowing shield overlaying a digital network grid, symbolising Defence cyber resilience and secure network remediation.

    Defence Cyber Training Environment

    Calexi led the rapid redesign and remediation of a critical Defence cyber training environment, reducing risk levels, lifting Essential Eight compliance by more than 30%, and enabling the successful completion of a multinational exercise. Our secure-by-design approach delivered measurable, sustainable improvements under tight time and compliance pressures.

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Why Calexi

Calexi is a veteran-owned consultancy built on precision, integrity, and real-world delivery. Our GRC consultants have successfully supported accreditation and compliance across Defence and regulated sectors, with a deep understanding of ISM, PSPF, and other Australian government frameworks.

We combine risk-based thinking with technical insight and delivery discipline. Our support is structured, actionable, and shaped by operational realities, not academic theory. When audit time comes, our clients are ready. When controls need implementation, we ensure they work. Calexi delivers confidence through compliance.

Need help navigating the ISM or securing an Authority to Operate?