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Linzumi

YC X26

San Francisco, US · Founded 2025 · 3 employees · 8 known investors

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A tool that runs in the terminal and detects when interactive prompts stall execution in development workflows, providing visibility into file operations and enabling remote redirection without SSH access.

Also known as [Placeholder] Sean Grove NewCo

AI & Machine LearningDeveloper ToolsEnterprise SoftwareArtificial IntelligenceChatUnited States of AmericaAmerica / CanadaPartly Remote

Founders & leadership· Y Combinator alumni (X26)

Linzumi was founded in 2025 by Sean Grove.

SGSean Grove
Sean GroveFounder & CEOSean Grove previously worked on post-training and alignment reasoning at OpenAI, founded OneGraph (which was acquired by Netlify), and served as Principal Architect at Netlify before starting Linzumi.

Investors · 8

Pioneerlisted by PioneerToronto, Ontario

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

Transpose Platform Managementlisted by Transpose Platform ManagementSan Francisco

How we know: Transpose Platform Management's portfolio page · Y Combinator's founder network · Not right? Tell us

Y Combinatorlisted by Y CombinatorSan Francisco · $500K

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

Axiom PartnersreportedSan Francisco

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

Decibel PartnersreportedMenlo Park · $100K – $10M

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

MatrixreportedSan Francisco · $100K – $10M

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

Spot VCreportedNewark

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

SV AngelreportedSan Francisco · $150K – $20M

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

Related companies · 5

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Companies working in the same space as Linzumi.

Legal entities · 1

corporate structure
Linzumi, Inc.

In the news

Linzumi: team chat for directing AI coding agentsycombinator.com · Jun 2026Linzumi Funding | Complete Analysis | Extruct AIextruct.ai

Frequently asked questions

What does Linzumi do?
A tool that runs in the terminal and detects when interactive prompts stall execution in development workflows, providing visibility into file operations and enabling remote redirection without SSH access.
Who founded Linzumi?
Linzumi was founded by Sean Grove in 2025.
Who are Linzumi's investors?
Linzumi's investors include Pioneer, Transpose Platform Management, Y Combinator, Axiom Partners, Decibel Partners, Matrix, Spot VC, SV Angel.
Where is Linzumi headquartered?
Linzumi is headquartered in San Francisco, US.