# Antioch

> New York simulation platform for physical AI — $32M Series A led by Greylock; calibrates cloud-scale sims to customer hardware.

## Why it is interesting

September 8, 2026: Greylock led a $32 million Series A. The company says teams can run thousands of parallel evaluations in hardware-calibrated simulation before physical deployment. Named customer: Amazon’s Ring (press release). Valuation, ARR, and paying-customer count were not disclosed. Seed was $8.5 million earlier in 2026; Robot Report put a 2025 pre-seed at about $4.24 million — do not add the three prints into a company total without a company figure.

## Profile

- **Latest funding:** Seed — $8.5M (2026)
- **Latest known valuation:** Not publicly disclosed
- **Total disclosed equity funding:** $41M
- **Stage:** series-a
- **Status:** private
- **Industries:** robotics, ai-ml
- **Coverage:** full
- **Last updated:** 2026-09-09
- **Latest funding investors:** Undisclosed in Series A release

## Key facts

- Sep 8, 2026: $32M Series A led by Greylock (company / Greylock post); no valuation
- Named customer in the release: Amazon’s Ring; quote from Ring CPO Jason Mitura
- Seed $8.5M earlier in 2026 (Robotics 24/7); pre-seed ~$4.24M (Robot Report) — totals conflict if summed
- BoxGroup participated; directory fund page exists. No /fund/ for A*, Category, Icehouse

## Funding history

- Seed · $8.5M · 2026
  Source: https://www.robotics247.com/article/antioch-announces-32m-series-a-to-bring-software-speed-to-physical-ai-development
- Series A · $32M · September 2026
  Source: https://www.newswire.com/news/antioch-raises-32m-to-bring-software-speed-to-physical-ai-development
- Pre-seed · ~$4.24M · December 2025
  Source: https://www.therobotreport.com/antioch-raises-pre-seed-funding-accelerate-ai-robotics-testing/

## Investors in our directory

- https://venturecapitaltracker.com/fund/greylock-partners
- https://venturecapitaltracker.com/fund/box-group

## Related articles

- https://venturecapitaltracker.com/2026-antioch-32m-series-a-greylock-physical-ai
- https://venturecapitaltracker.com/2026-september-9-investment-news-antioch-truebridge-yc
- https://venturecapitaltracker.com/2026-september-vc-news

**By:** [Venture Capital Tracker](https://venturecapitaltracker.com/editorial-policy)
**Last updated:** September 9, 2026

**Editorial note:** AI tools assisted with research, structure, or drafting. Venture Capital Tracker retains human editorial responsibility for factual accuracy, relevance, and source quality before publication.

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Source: https://venturecapitaltracker.com/startup/antioch