New England defense technology company Corridian announced on November 3, 2026 that it had exited stealth with a $38 million seed round led by Point72 Ventures to develop ultra-large autonomous underwater vehicles, build out its research and development facility and hire undersea engineers. Balerion Space Ventures, Harpoon Ventures, DCVC and Marlinspike also participated, alongside a syndicate of additional defense and deep-tech investors. Corridian plans to unveil its flagship vehicle in 2027…