GrayMatter Robotics is scaling surface-finishing cells into a factory automation layer

GrayMatter Robotics opened a 100,000-square-foot headquarters in Carson, California on October 23, 2025, with more than 25 active robotic cells processing customer and partner parts.

The company had raised $45 million in Series B funding in June 2024, led by Wellington Management, bringing total capital raised to $70.4 million. The release reported 2x to 4x production-line productivity improvement, 30% consumable-waste reduction, and more than 95% system availability.

GrayMatter targets sanding, grinding, polishing, and blasting work where part geometry changes across production runs. The robot scans a part and generates a robot program without manual programming; the Carson release says visitors can watch a robot scan a new part and program itself in under a minute. In factories, finishing work is skilled, repetitive, ergonomically difficult, and hard to automate with fixed paths.

The stack uses FANUC robotic platforms and 3M abrasives, pairing a known industrial arm base with process materials and GrayMatter's AI programming layer. Scan&Blast extends the approach into rough sandblasting conditions, letting operators mark blasting areas or exclusion zones directly on the part before the robot processes the surface.

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