Antioch

Develop physical AI at the speed of software. High-fidelity simulation, entirely in the cloud.

Robotics and hardware Developer tools and cloud

Latest funding

$32M Series A · September 8, 2026

Led by Greylock · Source: thenextweb.com

Total raised: $44.75M across 3 sourced rounds

All 3 rounds ↓

Website: antioch.com.

X: @antiochrobotics · 1,720 followers.

LinkedIn: linkedin.com.

Categories: Robotics and hardware Developer tools and cloud.

Sectors: physical AI build/test/validation.

Subcategory: physical AI validation.

Stage: Series A.

Based in: New York, United States.

Total raised: $44.75M in 3 sourced rounds.

Last round: Sep 8, 2026 · 65 days ago.

On Recent Funding since: Sep 8, 2026.

Signals

X account@antiochrobotics · created Dec 30, 2025 (10 months old) · 1,720 followers

Website registeredSep 21, 1995 (31 years old)

TIMELINE · MONEY RAISED

Antioch | 339 days on the record

@antiochrobotics·Raised $45M in 3 sourced rounds

Money raised, round by round (amounts linked to their source). Pins are dated signals; hover the icons for dates.

Funding rounds

September 8, 2026
Series A · $32M
GGreylock (lead), AA* Capital, BBoxGroup, CCategory Ventures, IIcehouse Ventures
Source: thenextweb.com
April 17, 2026
Seed · $8.5M
AA* (lead), CCategory Ventures (lead)
Source: fundraisingfox.com
December 30, 2025
X account created
December 8, 2025
Pre Seed · $4.25M
Source: SiliconANGLE
September 21, 1995
Website created

Founders and team

AL
Alex Langshur Founder
HM
Harry Mellsop Founder

Investors

Companies like Antioch

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Other companies backed by Greylock

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SSuperMe$20M Series A · Oct 2026
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SSnorkel AI$350M Series B+ · Sep 2026
HHighstock$30M Series A · Sep 2026

Greylock portfolio →

Sources and API

Every amount links to the page it came from. * Estimated from an accelerator's published standard deal, not a company-specific disclosure. How Recent Funding sources and verifies funding data. The same data as JSON: /api/v1/companies/antioch (get a free API key).