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Autumn

YC W26

San Francisco, US · Founded 2025 · 4 employees · 9 known investors

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Autumn AI identifies early-stage startup founders and companies through signals like incorporation filings, GitHub activity, social media follows, and hiring pages before they appear in public directories. The platform helps companies like Brex discover and prioritize emerging founders.

Also known as Autumn AI · Chiral Labs

AI & Machine LearningData & InfrastructureDeveloper ToolsEnterprise SoftwareUnited States of AmericaAmerica / Canada

Founders & leadership· Y Combinator alumni (W26)

Autumn was founded in 2025 by Vishnu Sampathkumar and Shiv Kampani.

VSVishnu Sampathkumar
Vishnu SampathkumarCo-Founder, CEOFounder and CEO of Autumn AI, which identifies early-stage startup founders and companies through signals including incorporation filings, GitHub activity, and hiring patterns.
SKShiv Kampani
Shiv KampaniCo-founder, CTOCo-founder and CTO of Autumn AI, a platform that identifies early-stage startup founders and emerging companies through incorporation filings, GitHub activity, and hiring signals.

Investors · 9

Y Combinatorlisted by Y CombinatorSan Francisco · $500K

How we know: the Y Combinator directory · open dataset · 5k.vc investor directory · Not right? Tell us

Amino CapitalreportedPalo Alto · $100K – $10M

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

HaystackreportedSan Francisco · $1M – $3M

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

Metsu Capitalreported

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

Nexus Venture PartnersreportedMenlo Park · $500K – $10M

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

Phosphor Capitalreported

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

RobinhoodreportedMenlo Park

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

Sandwith Ventures, LLCreported

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

Legal entities · 1

corporate structure
Autumn AI, Inc.

In the news

Autumn AI - aVenture Company Researchaventure.vc · Jul 2026Autumn AI: Stalk your prospects at scale.ycombinator.com · Feb 2026Autumn AI Funding | Complete Analysis | Extruct AIextruct.ai

Frequently asked questions

What does Autumn do?
Autumn AI identifies early-stage startup founders and companies through signals like incorporation filings, GitHub activity, social media follows, and hiring pages before they appear in public directories. The platform helps companies like Brex discover and prioritize emerging founders.
Who founded Autumn?
Autumn was founded by Vishnu Sampathkumar, Shiv Kampani in 2025.
Who are Autumn's investors?
Autumn's investors include Rebel Fund, Y Combinator, Amino Capital, Haystack, Metsu Capital, Nexus Venture Partners, Phosphor Capital, Robinhood and 1 more.
Where is Autumn headquartered?
Autumn is headquartered in San Francisco, US.