Gravis and HII deals show physical AI moving into heavy industry
· TexaHub · Robotics, AI in Industry, Technology Trends
SoftBank's $200 million bet on Gravis Robotics and HII's shipbuilding contracts point to retrofit and specialised robots, not humanoids, as heavy industry's near-term automation path.
SoftBank backs autonomous excavators
Gravis Robotics announced on 17 August that it had raised $200 million in a Series A round from SoftBank, which the company describes as the largest Series A in construction robotics history [1]. The company was founded in 2022 as a spin-out of ETH Zurich and has offices in Zürich, Austin and Oxford [1].
The size of the round stands out against the company's recent history. In November 2025 Gravis announced a $23 million raise co-led by IQ Capital and Zacua Ventures, with Holcim among the investors [3]. Less than a year later, a single strategic investor has committed a far larger sum, a scale of commitment more typical of a platform bet than of a niche tooling business. At the time of that earlier round, Gravis said it was targeting a $1.6 trillion earthmoving industry [3].
"Physical AI is central to SoftBank's vision for the next phase of AI," said Dai Sakata, a managing director at SoftBank Group [1]. Chief executive and co-founder Ryan Luke Johns said that with SoftBank's backing the company can "scale faster than anyone thought possible" [1].
Retrofit rather than replace
Gravis does not build its own machines. Its Gravis Rack kit retrofits existing excavators and other equipment, and the company lists compatibility with machines from Caterpillar, Case, Develon, John Deere, JCB, Hitachi, Sumitomo, Yanmar and Volvo [1]. It also offers Gravis Copilot, a mode in which AI assists a human operator rather than replacing them [1].
According to The Robot Report, Gravis noted that roughly two-thirds of global heavy-equipment demand comes from outside the top three manufacturers, and pitched its system as an operating system for mixed fleets [2]. Chief technology officer Dominic Jud told the publication that the company's AI grounds itself "in machine telemetry, responding to varying subterranean forces" [2].
The company claims productivity gains of up to 30% compared with peak manual operation and says it has deployed systems on four continents [1]. Earlier, it reported the first large-scale autonomous excavation on an active UK construction site, at Manchester Airport, and listed Holcim, Taylor Woodrow and HD Hyundai among its partners [3]. These are company claims; independent productivity data from those sites has not been published.
Gravis also says it has been selected for an $8 million UK government-backed CAM Pathfinder project with Flannery Plant Hire, which it describes as the UK's largest operated heavy-equipment rental provider, to retrofit an excavator fleet [1]. The Robot Report linked the opportunity to labour shortages affecting infrastructure repair, data centre construction and reshoring projects [2].
The shipyard parallel
Earlier this month, shipbuilder HII announced long-term performance-based production agreements with Path Robotics and GrayMatter Robotics worth up to $900 million in total over seven years [4]. Path provides robotic welding and GrayMatter robotic sanding, and both take part in HII's High-Yield Production Robotics (HYPR) programme, launched in April for naval platforms including aircraft carriers, submarines and destroyers [4].
Path said the deal is a commitment by the three companies "to transform how complex shipbuilding structures are fabricated, assembled, and outfitted" [5]. The relationship developed quickly: HII and Path signed a memorandum of understanding in February to explore integrating Path's welding technology into shipbuilding [6].
The structure of the HII deal matters as much as its size. The Robot Report described two stages: a development phase in which the robotics firms validate production techniques with HII, followed by a delivery stage in which HII sources work contingent on cost, schedule and quality [4]. HII also plans to outsource more than 2.5 million hours of shipbuilding work in 2026, a 30% increase from 2025 [4]. "Together, we are defining a new approach to robotics in shipbuilding: automation that can adapt to extreme levels of complexity, mix, and size," said HII executive vice president Eric Chewning [4].
Why specialised machines are winning the money
Both deals put capital into robots designed for one demanding task, welding a hull or digging a trench, attached to equipment and processes customers already run. That contrasts with the humanoid segment, where much of this year's investment attention has gone. In a column for The Robot Report this month, Plus One Robotics co-founder Shaun Edwards argued that humanoids remain financially unviable for most manufacturers, noting that one leading developer prices them at "several hundred thousand dollars per robot" [7]. He cited parcel-sorting demonstrations in which the best humanoids reach around 1,000 picks per hour against 1,300 to 3,000 for specialised sorters [7].
Our reading is that heavy industry buyers are paying for measurable throughput under contracts that tie payment to performance, as HII's two-stage structure does. Retrofit kits and task-specific cells fit that model because they can be judged against an existing manual baseline on the same machine or the same weld. General-purpose robots will struggle to be bought on those terms until their costs and cycle times are comparable.
What remains unproven
The open questions are about scale and evidence. Gravis's 30% productivity figure is a company claim measured against peak manual operation [1], and HII's $900 million is a ceiling that depends on the robotics firms meeting cost, schedule and quality targets [4]. Neither company has yet published the kind of multi-site operating data that would show whether these gains hold across varied soil conditions or ship classes. For investors and buyers, those numbers will be a better guide than the size of the funding rounds.
Sources
[1] Reshaping the Physical World: Gravis Robotics Raises $200M for Construction Autonomy — Gravis Robotics, 17 Aug 2026
[2] Gravis Robotics raises $200M for autonomous construction — The Robot Report, 17 Aug 2026
[3] Gravis Robotics accelerates global growth with landmark deals and $23M funding — Gravis Robotics, 28 Nov 2025
[4] HII signs up to $900M agreement with Path Robotics, GrayMatter Robotics — The Robot Report, 6 Aug 2026
[5] HII Signs Performance-based Production Agreements with Path Robotics and GrayMatter Robotics — Path Robotics, 6 Aug 2026
[6] HII Teams with Path Robotics to Integrate Physical AI into Shipbuilding — Path Robotics, 17 Feb 2026
[7] Humanoids won't scale on factory floors until costs drop — The Robot Report, 4 Aug 2026