Antioch lands $31.4M seed to test robots in software

What's the deal? Antioch, a simulation platform that lets robotics teams build, test, and deploy autonomous systems entirely in software, has raised $31.4M in seed funding, according to an SEC filing. The filing lists a total offering of $32M with eight investors in this close.

By the numbers: The round ranks in the 99th percentile of all US seed rounds in robotics, against a sample of 1,431 deals. Founded in 2025 by Harry Mellsop, Alex Langshur, Colton Swingle, and Collin Schlager, Antioch has now raised $44M in reported equity funding.

What's the endgame? The company's pitch is to move robotics development off physical hardware and into software, where teams can build, test, and deploy autonomous systems virtually. That approach aims to cut the cost and time of iterating on real machines.

The signal: An outsized seed round for a company barely a year old points to investor appetite for tools that speed up robotics development. Simulation is emerging as a foundational layer as more teams race to deploy autonomous systems.

Read more: AlleyWatch

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