K39C Australia

Supporting Australia’s most complex Defence programs

K39C is an Australian Defence consultancy providing specialist advisory, engineering assurance, commercial, and project delivery support across Guided Weapons and Explosive Ordnance, maritime sustainment, Defence acquisition, and complex capability programs.

What we do

Our team combines military experience, Defence industry expertise, and deep technical knowledge to help clients reduce risk, strengthen governance, and achieve successful capability outcomes.

Engineering assurance for Defence programs

Providing trusted engineering assurance for complex Defence and national security programs. Our experts support informed decision-making, technical governance, risk management, and capability delivery across the full lifecycle.

Commercial & procurement expertise

Helping Defence and industry navigate complex procurement and contracting environments. K39C provides strategic commercial advice, acquisition support, tender evaluation, contract management, and ASDEFCON expertise to maximise value and reduce risk.

Governance and compliance support

K39C helps Defence and industry organisations establish effective governance frameworks, manage risk, maintain compliance, and improve decision-making in complex and highly regulated environments.

Guided Weapons and Explosive Ordnance (GWEO)

K39C supports Defence and industry clients through the planning, acquisition, integration, sustainment, assurance, and governance of complex weapons and explosive ordnance capabilities.

  • Program and project management
  • Engineering assurance and technical governance
  • Systems engineering and requirements management
  • Explosive ordnance safety and suitability for service (S3)
  • Integrated Logistics Support (ILS) and sustainment planning
  • Procurement and ASDEFCON commercial support
  • Capability acquisition and transition management
  • Supplier evaluation and technical risk assessments
  • Workforce augmentation and specialist advisory services

Maritime sustainment and naval capability

K39C provides specialist maritime consulting services supporting naval acquisition, sustainment, engineering, and fleet readiness outcomes.

  • Maritime Sustainment Model (MSM) implementation support
  • Naval acquisition and sustainment programs
  • Design support and engineering governance
  • Integrated Product Support (IPS) and ILS
  • Fleet maintenance and sustainment planning
  • Program controls, scheduling, and performance reporting
  • Technical assurance and independent reviews
  • Commercial and procurement advisory services
  • Transition and change management

Engineering, commercial, and project delivery expertise

Beyond GWEO and maritime, K39C provides specialist support across Defence engineering, procurement, project management, and technical assurance disciplines.

  • Systems engineering
  • Engineering assurance
  • Project and program management
  • Project controls and scheduling
  • Commercial and procurement advisory
  • ASDEFCON contracting support
  • Integrated Logistics Support (ILS)
  • Systems safety and risk management
  • Governance and compliance
  • Workforce augmentation

Meet our experts

Richard Slingsby, General Manager Maritime

General Manager, Maritime

Richard Slingsby

Richard is a results-driven Defence professional and strategic adviser with extensive experience delivering commercial, project management, and consulting services across complex capability and sustainment environments. As General Manager – Maritime, he leads K39C's maritime portfolio, helping Defence and industry clients navigate complex challenges through practical, outcome-focused solutions. With expertise in commercial strategy, tender evaluation, negotiation and project delivery, Richard works closely with clients to understand their objectives and develop innovative approaches that maximise value, manage risk, and improve performance. Known for challenging conventional thinking and fostering strong stakeholder relationships, he is committed to delivering sustainable outcomes that strengthen capability and support long-term success.

David Fiddelaers, General Manager GWEO

General Manager, GWEO

David Fiddelaers

David Fiddelaers is a highly respected Defence professional with extensive experience across Guided Weapons and Explosive Ordnance (GWEO), acquisition, engineering and capability delivery. As General Manager – GWEO, David leads K39C's specialist GWEO practice, supporting Defence and industry clients across some of Australia’s most complex and strategically significant capability programs. His expertise spans engineering assurance, procurement, stakeholder engagement, munitions certification, evaluation and program delivery, providing clients with practical solutions in highly regulated and technically demanding environments. Known for his strategic leadership, technical credibility and commitment to excellence, David is passionate about strengthening sovereign Defence capability and delivering outcomes that support Australia's evolving national security requirements.