Antioch raises $32 million Series A led by Greylock

Physical AI simulation company Antioch has raised $32 million in a Series A round led by Greylock, with participation from A* Capital, Category Ventures, BoxGroup, Icehouse Ventures, and angel investors. The company said artificial intelligence has already sped up software development, but physical autonomous systems are still constrained by slow and costly hardware development cycles. Antioch provides simulation tools for physical AI teams to build, test, and validate systems. Its customers and partners include Amazon Ring, NVIDIA Robotics, and Nebius. The company also said it is expanding quickly and hiring across simulation, infrastructure, machine learning, 3D graphics, go-to-market, and operations roles.