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Sixtyfour

Intelligence Infrastructure on People and Entities

Y CombinatorSpring 2025ActiveB2BInfrastructureArtificial IntelligenceB2BEnterprise SoftwareInfrastructure

What they do

Problem

Organizations lack reliable, comprehensive intelligence on people and entities to verify identities, understand relationships, and detect risk signals from fragmented data sources.

Solution

Sixtyfour provides AI agents that investigate people and companies across open/dark web, official records, proprietary databases, and unstructured data to resolve identities, map relationships, and surface risk indicators.

Who it's for

Teams in regulated or risk-sensitive organizations (e.g., compliance, investigations, security, and due diligence) that require high-quality entity data.

Founders

Saarth Shah
Co-Founder & CEO

CEO @ Sixtyfour. Previously, engineering @ Whatnot (W20) and Deepgram AI (W16). UC Berkeley alum. Ex-Data Science Researcher @ Stanford Snyder & San Diego Supercomputer Center.

Christopher Price
Founder

Cornell CS, AI CalHacks Winner, Prev @ Onyx (YC W24), Currently Building AI Agents for GTM

Open roles 4

Software Engineer - Full-Stack
San Francisco, CA, US / Remote (US; CA) · Full-time · $100K - $200K · 0.10% - 0.30%
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AI Engineer
San Francisco, CA, US · Full-time · $145K - $200K · 0.10% - 0.30%
Apply ↗
Operations Associate – Data Samples & Customer Success
San Francisco, CA, US · Full-time · $75K - $120K · 0.10% - 0.40%
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Senior Software Engineer - AI Engineering
San Francisco, CA, US · Full-time · $150K - $250K · 0.10% - 0.30%
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