Defence robots in 2026 explained: uncrewed boats and AI pilots take the billion-dollar rounds, humanoids are still on Army prize money

Defence is now where the largest robotics cheques go, but not to the robots most people picture. Of the three robotics rounds of $1 billion or more in MEKAWIRE's funding table for 2026, two went to defence companies, Saronic's $1.75 billion Series D for uncrewed warships and Shield AI's $1.5 billion Series G for its AI pilot. Together they account for $3.25 billion of the $4.65 billion raised in those three rounds, or 69.9%. The third was Skild AI's robot-brain round.

The military humanoid, by contrast, is still at the prize stage. The US Army's xTechHumanoid competition, whose winners were announced on Sept 30, offered $490,000 in cash prizes and up to $1.25 million in follow-on contracts. That prize pool equals 0.03% of Shield AI's Series G equity. This explainer sets out where military robotics money is going in 2026, which programmes exist in the US and Korea, and what would have to happen for ground robots and humanoids to cross from trials into procurement.

The billion-dollar rounds go to boats and aircraft autonomy

Saronic said on March 31 that it had closed a $1.75 billion Series D led by Kleiner Perkins at a $9.25 billion valuation, 2.3 times the $4 billion set in its Series C of February 2025. The Austin company builds autonomous surface vessels from the 24-foot Corsair to the 180-foot Marauder and has committed $300 million to expand its Louisiana shipyard, alongside a next-generation yard it calls Port Alpha. Its verified funding in MEKAWIRE totals $2.58 billion across four rounds.

Shield AI said on March 26 that it was raising $1.5 billion in Series G equity at a $12.7 billion post-money valuation, led by Advent International, plus $500 million of fixed-return preferred equity from Blackstone funds, and that it would buy Aechelon Technology, the simulation provider behind the Pentagon's Joint Simulation Environment. Its Hivemind autonomy software has been flight-tested aboard Anduril's YFQ-44A Fury in the Collaborative Combat Aircraft programme. Outside our profiled companies, Anduril said on May 13 that it had raised a $5 billion Series H, and HavocAI added $85 million in October 2025 with Lockheed Martin and Hanwha among its backers.

The valuations moved because a buyer already exists

Both leaders more than doubled their valuations in a little over a year. Saronic went from $4.0 billion to $9.25 billion in 406 days, and from $1.0 billion in July 2024 in 620 days. Shield AI went from $5.3 billion to $12.7 billion in 385 days. The common thread is a customer that is already writing contracts. The US Navy gave Saronic a $392 million production contract in 2025, and Shield AI was selected as a mission-autonomy provider for the Air Force's collaborative combat aircraft. Investors are paying for products with a procurement line, not for research.

Ground robots and humanoids are still at the trial stage

On the ground the money is public and small. xTechHumanoid drew 103 white papers, 10 finalists and nine demonstrations at Marine Corps Base Quantico on Sept 9 and 10. Only one winner, IHMC's Alex, is a complete humanoid. The other four supply power (ACEs Group and Hydroplane), fingertip touch sensors (RAS Labs) and command software (Velocity Explorations), which suggests the Army sees energy and touch, rather than the walking body, as the bottleneck. In manufacturing, the ARM Institute said on Sept 3 that the Department of War's manufacturing technology office awarded it nearly $90 million for ten projects that must put robots and AI into 12 military manufacturing sites within two years, roughly $9 million a project.

Korea is building the same pipeline from the ministry side. Ajou University said its Army hub in Pangyo opened on Oct 12 as the first of five defence AI-transformation centres that the defence ministry and IITP are setting up with six universities. Its first-year projects include a battlefield test environment for physical AI, an explosive-ordnance-disposal mission system and voice-commanded robot control. AeiROBOT, an Ansan humanoid start-up, said it had been picked for the fifth cohort of DAPA's Defence Innovation Company programme, and Maum AI showed a quadruped fitted with a military mine-detector sensor and ground radar for trials in Thailand, according to Robot Newspaper. Neither the DAPA amount nor Maum AI's figures have been confirmed in a primary release. Persona AI, the Houston shipyard-humanoid maker with an HD Hyundai deployment agreement, reported $65.4 million sold toward a $142 million offering in a Form D filed on Sept 14.