Monumental Labs :: Robotic Stone Carving Factories That Use Seven-Axis Industrial Robotic Arms

Monumental Labs is a New York-based startup (founded in 2022) that combines industrial robotics, AI, and traditional craftsmanship to revive large-scale stone carving for sculpture, architecture, and ornamentation. The company operates robotic stone-carving factories that use seven-axis industrial robotic arms equipped with diamond-tipped tools to mill intricate details from massive blocks of marble, limestone, granite, sandstone, onyx, and other stones. By leveraging automation and AI, Monumental Labs dramatically reduces the time and cost of stone fabrication — producing museum-quality sculptures and architectural ornament in weeks rather than months or years — while preserving the final artistic touches through skilled human carvers.

The company’s mission is to spark a “stone renaissance” by making stone carving economically viable again. This enables architects and developers to incorporate beautiful, durable stone ornament and structures into modern buildings, while supporting a new generation of sculptors and craftsmen. Monumental Labs sources stone directly from global quarries and operates in a 37,000 sq ft warehouse in Mount Vernon, NY (with plans for expansion). Their process involves digital design input, robotic milling (removing the bulk of material quickly), and hand-finishing for refinement and artistic expression.

Robot-based products and capabilities include:

• Seven-Axis Robotic Carving Arms: Industrial robotic arms programmed to carve detailed sculptures, facades, monuments, and ornamental elements with high speed and precision. These robots handle complex geometries that would be prohibitively expensive or time-consuming by hand.
• AI-Enabled Stone Fabrication: The company uses AI to optimize toolpaths, predict material behavior, and ensure consistency across large-scale production. This allows for mass customization of stone elements for architecture and public art.
• Full-Service Stone Carving: From digital design collaboration with artists and architects to final hand-carved finishing, Monumental Labs offers end-to-end production of custom stone sculptures, building facades, monuments, and decorative elements.

Monumental Labs has already produced works for artists, collectors, and architectural projects, and is expanding capacity with additional robots. The company is venture-backed (including investment from Alexis Ohanian’s Seven Seven Six) and aims to scale robotic stone fabrication to revive ancient building techniques using one of the world’s most sustainable and long-lasting materials.