GPA offers comprehensive defence engineering services, providing detailed design, integration and sustainment to support Australia’s sovereign capability.

GPA is a national engineering design consultancy that thrives on complex projects requiring innovative solutions underpinned by our diversified experience. Our highly qualified team of professionals continually look to the future implementing innovative and progressive defence engineering solutions specifically tailored to every project.

GPA has been providing long-term client support for over 30 years, our stable workforce possess engineering expertise across Australia’s heavy industries partnering with our clients for decades.

GPA are 100% Australian owned and operated, with a broad local knowledge base to support the Australian defence industry. With offices based around Australia, our team is well resourced to provide defence engineering services on site for Australian defence industry projects.


GPA is a member of:


GPA has formed a collaboration with global engineering group SEGULA Technologies to strengthen our naval offering within the Australian defence industry. By joining forces, SEGULA Technologies and GPA Engineering have the ambition to become a key player in the Future Submarines Program. Find out more. 

  • Our Services
    • Concept and feasibility studies, and estimation
    • Detailed engineering, design and drafting
    • Modelling and simulation analysis
    • Production engineering support
    • Certification of equipment and assessment of standards equivalency across Australian, European and North American jurisdiction’s including NFPA 70E
    • Electrical HV, LV and ELV systems
    • Control systems and Integration including SIL rated
    • Hazardous area compliance
    • Pressure equipment and tanks, vessel design and inspection
    • Fuel and gas storage, pumping and piping
    • Crane/lifting equipment specification/selection and lifting planning
    • Functional safety; HAZOP, CHAZOP, HAZID, SIL, LOPA