/Companies

Fern

YC W26

Founded 2025 · 2 employees · 4 known investors

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Fern develops high-fidelity, custom robot world models for scaling the evaluation and training of robot policies. The product serves robotics teams building and deploying autonomous systems.

Also known as Ishiki Labs Inc. · Fern (Formerly Ishiki Labs) · Ishiki Labs · ProactiveAI · ProactiveAI, Ishiki Labs, Fern (Formerly Ishiki Labs)

Founders & leadership· Y Combinator alumni (W26)

Fern was founded in 2025 by Amit Yadav and Robert Xu.

AYAmit Yadav
Amit YadavCofounderAmit Yadav is cofounder and CEO of Ishiki Labs. He previously worked as a research scientist at Meta, contributing to LLaMA and video AI systems for smart glasses, and holds a PhD from Purdue University with research published at major computer vision and machine learning conferences.
RXRobert Xu
Robert XuCo-FounderRobert Xu is co-founder and CTO of Ishiki Labs, and previously held roles focused on multi-modal AI and AR glasses development at Meta, as well as research infrastructure work at Citadel Securities.

Investors · 4

Y Combinatorlisted by Y CombinatorSan Francisco · $500K

How we know: the Y Combinator directory · funding news · press coverage · Not right? Tell us

Capitalize VCreportedChicago · $100K – $200K

How we know: Y Combinator's founder network · Not right? Tell us

OUTBOUND CAPITALreportedSaratoga Springs

How we know: Y Combinator's founder network · Not right? Tell us

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Founder mafia

2 people who came through Fern went on to found or lead other companies.

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Companies working in the same space as Fern.

Legal entities · 1

corporate structure
Ishiki Labs Inc.

In the news

Frequently asked questions

What does Fern do?
Fern develops high-fidelity, custom robot world models for scaling the evaluation and training of robot policies. The product serves robotics teams building and deploying autonomous systems.
Who founded Fern?
Fern was founded by Amit Yadav, Robert Xu in 2025.
Who are Fern's investors?
Fern's investors include Y Combinator, Capitalize VC, OUTBOUND CAPITAL, V1 VC.