Antioch, a startup barely a year old, just locked down $32 million in Series A funding to expand its cloud-based simulation platform for physical AI and robotics. Greylock led the round, with participation from A*, Category Ventures, Box Group, Icehouse Ventures, and a roster of angel investors that reads like a tech industry Rolodex.
The company’s pitch is straightforward: building robots and drones is expensive, slow, and error-prone when your only testing option is the physical world. Antioch wants to move most of that process into high-fidelity virtual environments, where teams can break things thousands of times without bending a single piece of metal.
The funding trail
This Series A follows an $8.5 million seed round that closed in April 2026 at a $60 million valuation. Combined with earlier pre-seed money, Antioch has now raised roughly $44.6 million in total equity funding.
The angel investor list is worth noting. Shyam Sankar, CTO of Palantir, participated alongside Adrian Macneil, CEO of robotics tooling company Foxglove, and Ian Andrews, an executive at NVIDIA.
