Antioch Raises $32M Series A Led by Greylock to Build Simulation Tools for Physical AI

Antioch Secures $32M Series A

Antioch, a New York City-based startup building simulation tools for a new generation of robot builders, has raised $32 million in Series A funding. The round was led by Greylock Partners and included participation from Shyam Sankar, A* Capital, Icehouse Ventures, Category Ventures, BoxGroup, Adrian Macneil, and Ian Andrews.

What Antioch Does

Antioch is positioned as the "Cursor for physical AI." The company's platform is designed to accelerate robotics testing and validation by bringing software-speed iteration to hardware development. This enables developers to simulate autonomous robot behavior before deploying to the real world.

By providing simulation tools, Antioch aims to reduce the time and cost associated with physical robot testing, allowing for faster iteration cycles and more robust validation before real-world deployment.

Funding Details

• Round: Series A
• Amount: $32,000,000 USD
• Date: September 8, 2026
• Lead Investor: Greylock Partners
• Additional Investors: Shyam Sankar, A* Capital, Icehouse Ventures, Category Ventures, BoxGroup, Adrian Macneil, Ian Andrews

Why This Matters for Acquisitions

The physical AI and robotics sector continues to attract significant investment as companies seek to bridge the gap between software simulation and hardware deployment. Antioch's focus on simulation tools addresses a critical bottleneck in robotics development: the need for extensive real-world testing, which is often slow and expensive.

With this Series A funding, Antioch is well-positioned to expand its platform and team, potentially making it an attractive acquisition target for larger robotics, AI, or simulation software companies looking to integrate advanced simulation capabilities into their offerings.

About the Investors

Greylock Partners, a leading venture capital firm, led the round. The participation of angel investors and firms such as Shyam Sankar, A* Capital, Icehouse Ventures, Category Ventures, BoxGroup, Adrian Macneil, and Ian Andrews signals broad confidence in Antioch's approach to physical AI simulation.

Looking Ahead

As Antioch continues to develop its simulation tools, the company is likely to focus on scaling its technology and customer base. The Series A funding provides the capital necessary to accelerate product development and market expansion, further solidifying its position in the emerging physical AI ecosystem.