Leidos Australia to design floating dry dock for nuclear-powered submarines
Canberra, Australia (30 July 2026) — Leidos Gibbs & Cox Australia will design a new mobile floating dry dock to support the sustainment and operational readiness of Australia’s future fleet of nuclear-powered submarines.
A foundational element of the AUKUS Pillar 1: Optimal Pathway, the dry dock design will support mission readiness, continuity and resilience, and leverage Leidos’ decades of submarine and maritime engineering expertise.
Overseen by the Australian Submarine Agency (ASA), the floating dry dock will be a critical component of the country’s nuclear submarine naval infrastructure, enabling system inspection, maintenance and repair out of the water. Its design is complex due to specialised nuclear safety and security requirements.
Under ASA direction, Leidos Gibbs & Cox Australia will lead the joint Australian-US design development. Drawing on Leidos Gibbs & Cox’s extensive design capabilities in the US and Leidos Gibbs & Cox Australia’s system development capabilities, the team will deliver the project’s first phase of a functional design by mid-2027.
Quote attributable to Leidos Australia Chief Executive, Paul Chase: “Australia’s nuclear submarine readiness depends on trusted capability, strong collaboration and the sustainment infrastructure needed to support long-term operations. Leidos’ floating dry dock design will help advance our sovereign capability and reflects our commitment to supporting a critical path for AUKUS success.”
About Leidos
Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Leidos Australia is a trusted partner to the Australian Government, leveraging global experience and a network of partners to deliver solutions that support intelligence, defence, aviation, border protection, and health markets while protecting and improving the Australian way of life. Headquartered in Reston, Virginia, with 50,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.leidos.com
Certain statements in this announcement constitute “forward-looking statements” within the meaning of the rules and regulations of the U.S. Securities and Exchange Commission (SEC). These statements are based on management’s current beliefs and expectations and are subject to significant risks and uncertainties. These statements are not guarantees of future results or occurrences. A number of factors could cause our actual results, performance, achievements, or industry results to be different from the results, performance, or achievements expressed or implied by such forward-looking statements. These factors include, but are not limited to, the “Risk Factors” set forth in Leidos’ Annual Report on Form 10-K for the fiscal year ended January 2, 2026, and other such filings that Leidos makes with the SEC from time to time. Readers are cautioned not to place undue reliance on such forward-looking statements, which speak only as of the date hereof. Leidos does not undertake to update forward-looking statements to reflect the impact of circumstances or events that arise after the date the forward-looking statements were made.
