Ultra Maritime Secures Royal Australian Navy Contract for Undersea Acoustic Countermeasures

## Ultra Maritime Strengthens Royal Australian Navy's Undersea Defence Posture Ultra Maritime Australia has secured a new contract with the Australian Department of Defence to supply Acoustic Device Countermeasure (ADC) units in support of the Royal Australian Navy (RAN), the company announced on 19 May 2026 from its Adelaide operations. According to the company, the agreement builds on an established and trusted partnership with the Australian defence establishment, further embedding Ultra Maritime as a key supplier in the nation's undersea warfare and submarine defence ecosystem. Acoustic Device Countermeasures are critical components of naval anti-submarine warfare and vessel self-protection systems. ADC units are designed to deceive or decoy incoming torpedo threats by mimicking the acoustic signature of a vessel, providing submarines and surface ships with a passive but effective layer of defence against undersea attack. ### Strategic Significance The contract arrives at a period of heightened focus on Indo-Pacific maritime security, with Australia significantly expanding its naval capabilities under the AUKUS trilateral security partnership. Investment in undersea warfare technologies — including countermeasures, sonar systems, and submarine platforms — has become a strategic priority for Canberra as regional maritime tensions persist. Ultra Maritime, a specialist in sonar, acoustic, and undersea systems, has positioned itself as a key industrial partner in this build-up. The Adelaide-based operation reflects the company's commitment to maintaining sovereign defence industrial capability within Australia, a priority explicitly supported by the Australian Government's Defence Industry Policy. ### Industry Context The award is consistent with a broader trend of Western allied navies accelerating procurement of undersea warfare systems. For Ultra Maritime, the contract reinforces its portfolio of acoustic technologies and its standing as a trusted supplier to Five Eyes-aligned naval forces. Further details regarding contract value and delivery timelines were not disclosed in the company's announcement, in line with standard defence procurement confidentiality practices. *Source: PR Newswire / Ultra Maritime Australia*