Antioch
Summary active Updated Apr 21, 2026This profile is AI-generated. If you spot an error, please help us fix it by sharing a URL to the correct information.
Investors
About
Antioch is a New York-based startup building a simulation platform for physical AI and robotics, aiming to close the “sim-to-real” gap that makes it difficult for robots trained in virtual environments to operate reliably in the physical world 12. The platform allows robot builders to spin up multiple digital instances of their hardware connected to simulated sensors, enabling edge-case testing, reinforcement learning, and training data generation 1. The company was founded in May 2025 by Harry Mellsop with four co-founders — Alex Langshur, Michael Calvey (both previously sold Transpose to Chainalysis), Collin Schlager (ex-Meta Reality Labs), and Colton Swingle (ex-Google DeepMind) 1.
Funding History
| Date | Round | Amount | Lead | Co-investors |
|---|---|---|---|---|
| 2026-04-16 | Seed | $8.5M | A*, Category Ventures | MaC Venture Capital, Abstract, Box Group, Icehouse Ventures 123 |
The round valued Antioch at $60M post-money 1.
What Investors Say
“What happened with software engineering and LLMs is just starting to happen with physical AI. The challenges are different.”
— Çağla Kaymaz, Partner at Category Ventures, TechCrunch, April 16, 2026 1
What Founders Say
“We genuinely all think that anyone building an autonomous system for the real world is going to do so in software primarily in two to three years.”
— Harry Mellsop, Co-founder of Antioch, TechCrunch, April 16, 2026 1
Sources
-
TechCrunch, “This simulation startup wants to be the Cursor for physical AI,” April 16, 2026. https://techcrunch.com/2026/04/16/this-simulation-startup-wants-to-be-the-cursor-for-physical-ai/↩↩↩↩↩↩↩
-
SiliconANGLE, “Antioch prepares to accelerate simulated testing for autonomous robots after raising $8.5M,” April 16, 2026. https://siliconangle.com/2026/04/16/antioch-prepares-accelerate-simulated-testing-autonomous-robots-raising-8-5m/↩↩
-
Axios Pro Rata, April 21, 2026 edition. https://www.axios.com/newsletters/axios-pro-rata↩