Rollup

On-device AI SDK for user context personalization.

Founded 2026San Francisco, United States Enterprise SoftwareArtificial IntelligenceDeveloper Tools

The founders

NX
Ex-Databricks, Notion, Amazon
J YimJY
Ex-BlackRock, Octave, Parallax Worlds · Stanford University

The company

What they're building

Rollup is a developer infrastructure company that helps AI-powered applications start every new user with real context instead of a blank slate.

Who else is building in this space

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Thousands more founded every month.

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