South Korean company LIG Nex1 started research and development (R&D) on a new passive sonobuoy in August 2021...

Ultra Maritime announces that its Sonobuoy Systems business has been awarded a further, 3-year contract, worth £31m, with the UK MOD.

France is moving forward with a new active-passive Sonobuoy system. The SonoFlash, developed by Thales, could be the game-changer...

Ultra Electronics Holdings plc (ULE) and Sparton DLS, LLC announce the award of a contract valued at $71.8 million to their ERAPSCO joint venture for the manufacture of sonobuoys for the United States Navy.

Ultra is pleased to announce it has secured a contract from QinetiQ to support them in replacing the entire Sonobuoy Test Facility (STF) system at the British Underwater Test & Evaluation Centre, MOD BUTEC.