Blue Water Autonomy is a defense startup building large, fully autonomous warships capable of operating thousands of miles from shore for months at a time without a captain or crew. Founded by U.S. Navy veterans and former technology and robotics leaders, the company takes a 'commercial-tech-first' approach: integrate proven components onto an unmanned hull, deploy, gather feedback, and iterate on a timeline of months rather than years. Its first full-scale vessels target the 100- to 150-foot class, designed for long-range, blue-water naval missions where persistent presence and survivability matter. The approach addresses the U.S. Navy's push for affordable, mass-producible uncrewed surface vessels. Headquartered in Boston with offices in Washington D.C., Morgan City, and San Diego, Blue Water Autonomy raised a GV-led $50M Series A in 2025, bringing total funding to about $64M.