America's biggest military shipbuilder puts up to $900m behind two robotics start-ups

HII, the largest military shipbuilder in the United States, has signed performance-based production agreements with Path Robotics and GrayMatter Robotics worth up to 900 million dollars of work over seven years. The money is not a guaranteed contract: it is released in stages, as each company hits agreed technology and production milestones. The programme is called HYPR — High-Yield Production Robotics — and it splits the shipyard between the two suppliers. Path Robotics takes welding, bringing its Obsidian system and the mobile Rove platform, which rides on a quadruped base and can walk to the weld rather than waiting for the work to come to it. GrayMatter Robotics takes the finishing trades: grinding, blasting, painting, assembly and inspection. The work covers aircraft carriers, submarines, destroyers, amphibious ships, future frigates and uncrewed surface vessels. The scale explains the bet. HII says it will contract out more than 2.5 million hours of shipyard work in 2026, roughly 30 per cent more than a year earlier — a gap the American shipbuilding trades cannot fill by hiring. GrayMatter claims its systems reach up to twelve times the throughput of manual work with 95 per cent fewer rework passes; those are the supplier's own figures, not HII's. What makes the deal unusual is the payment structure. Shipyard automation has a long record of pilots that never scale, and a performance-based agreement shifts that risk onto the robot makers: no milestone, no money. It is also one of the largest single commitments to mobile industrial robotics announced by an American manufacturer to date.