Our take
GrayMatter is the clearest specialist in AI surface finishing. Its cells plan their own paths from scans of each part, so shops with many part numbers can automate sanding, grinding, and blasting without offline programming.1,4
Demand evidence is strong for a six-year-old company: a Navy shipbuilding program with HII worth up to $900 million across two vendors, plus named users such as Riddell. The weak points are subscription prices that are not published and award money that depends on meeting milestones.5,4
Scores by criterion
Each criterion is defined on our methodology page.
Who uses GrayMatter and what it's for
High-mix manufacturers in aerospace, defense, shipbuilding, specialty vehicles, and consumer products use GrayMatter cells for surface finishing and inspection.1,6
Named users include football helmet maker Riddell and shipbuilder HII.4,5
History
SK Gupta, Ariyan Kabir, and Brual Shah founded GrayMatter in 2020 out of research at the University of Southern California. In May 2020 the team won the $50,000 grand prize at USC Viterbi's Maseeh Entrepreneurship Prize Competition.4,7
In June 2024 GrayMatter raised a $45 million Series B led by Wellington Management, bringing total funding to $70.4 million. In August 2026 HII signed performance-based production agreements with GrayMatter and Path Robotics under its High-Yield Production Robotics program.4,5
Products
GrayMatter offers robot cells for sanding, grinding, blasting, polishing, buffing, spraying, and dimensional inspection. Its software, which it calls Factory SuperIntelligence, adapts to each part's geometry and material without manual programming.1,2
The company says its systems deliver 4 to 12 times the throughput of manual labor. In its 2024 funding release it cited 30% or more less consumable waste and system availability above 95%.1,4
Pricing
GrayMatter sells its cells as Robots as a Service: one monthly subscription that covers hardware, software, training, and 24/7 support. It does not publish the monthly rate, and buyers send a sample part for a test.3,1
Competitive landscape
| Company | Product | Pricing model | Deployment footprint | Where GrayMatter wins or loses |
|---|---|---|---|---|
| GrayMatter Robotics | AI cells for sanding, grinding, blasting, coating, and inspection1 | Monthly subscription; rate not published3 | HII shipbuilding agreements; users include Riddell5,4 | AI surface finishing on a monthly subscription; rate not published |
| Path Robotics | AI welding cells and Rove mobile welding10 | Offered as a service with no upfront capital cost, priced by quote10,16 | More than $100 million in bookings in 2025; Navy shipbuilding agreements with HII9,8 | Path wins on AI welding. GrayMatter wins on the finishing steps after welding, and the two share the HII program. |
| Formic | Palletizing, case packing, and machine tending robots, fully managed11 | Fixed monthly fee with no capital outlay11 | Hundreds of robots in more than 100 facilities in over 30 states12 | Formic wins on palletizing and machine tending as a service. GrayMatter wins on sanding, grinding, and coating. |
| Abagy | AI welding software that plans robot paths without programming13 | Not published; financing through partners13 | High-mix makers of beams, joists, frames, and trusses13 | Abagy wins on programming-free welding paths. GrayMatter wins on surface finishing and blasting. |
| Vention | Modular automation hardware, design software, and AI applications14 | Self-serve design and online ordering14 | More than 28,000 Vention machines running; 90 of the Fortune 500 use it14 | Vention wins on do-it-yourself modular automation. GrayMatter wins on a fully serviced finishing cell. |
| Hirebotics | App-controlled welding, cutting, and painting cobots15 | Published: cobot welder from $105,000, owned outright, no required subscription15 | Job shops buying single cells15 | Hirebotics wins on published cobot welder prices. GrayMatter wins on finishing large, varied parts. |
Limits
Subscription prices are not published.3
Revenue is not disclosed. We estimate it at $20 million to $50 million, based on $70.4 million raised through 2024 and a customer base that spans aerospace, defense, and consumer products. This is an estimate, not a reported figure.4,6
The HII award of up to $900 million is shared with Path Robotics and depends on both companies meeting readiness and performance milestones over seven years.5
What customers say
Where it helps
At Riddell, GrayMatter cells help the helmet maker meet demand growth while keeping quality and throughput steady despite staffing gaps, according to Riddell's director of distribution and strategy.4
For HII, GrayMatter covers the steps after welding, such as grinding, blasting, and coating, on Navy ship structures.6,5
Where it falls short
Shops whose main bottleneck is welding rather than finishing may get more from welding specialists such as Path Robotics.
Leadership
Ariyan Kabir
CEO and co-founderKabir earned a PhD in mechanical engineering at USC in 2019 and co-founded GrayMatter in 2020.7,4
SK Gupta
Co-founderGupta directs USC Viterbi's Center for Advanced Manufacturing and is the Smith International Professor in Mechanical Engineering.7
Sources
- GrayMatter Robotics, Homepage, accessed November 3, 2026
- GrayMatter Robotics, About us, accessed November 3, 2026
- GrayMatter Robotics, Robots as a Service, accessed November 3, 2026
- PR Newswire, GrayMatter raises $45M Series B, June 20, 2024, accessed November 3, 2026
- HII, HII signs performance-based production agreements with Path Robotics and GrayMatter Robotics, August 6, 2026, accessed November 3, 2026
- Seapower, GrayMatter develops advanced robotics for future-proof shipbuilding, September 10, 2026, accessed November 3, 2026
- USC Viterbi School of Engineering, GrayMatter Robotics wins the Maseeh Entrepreneurship Prize Competition, May 7, 2020, accessed November 3, 2026
- Path Robotics, HII signs production agreements with Path Robotics and GrayMatter Robotics, accessed November 1, 2026
- Path Robotics, 2025 year in review, accessed November 1, 2026
- Path Robotics, Newsroom and company facts, accessed October 31, 2026
- Formic, Homepage, accessed November 2, 2026
- VentureBeat (Business Wire), Formic raises $50 million to scale physical AI across American manufacturing, October 22, 2026, accessed November 2, 2026
- Abagy, Home page, accessed November 1, 2026
- Vention, Homepage, accessed November 2, 2026
- Hirebotics, Pricing, accessed November 1, 2026
- Path Robotics, Homepage, accessed October 31, 2026
