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Code Four

YC X25

San Francisco, US · Founded 2025 · 3 employees · Hiring · 15 known investors

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Code Four develops AI-powered investigation software for police departments that automates evidence processing and fuses data from body-worn cameras, records management systems, phone dumps, recorded audio, and case files. The platform extracts entities, builds timelines, and generates investigative documents to accelerate criminal inquiries.

Also known as Code Four Labs Corp.

AI & Machine LearningGovTechArtificial IntelligenceComputer VisionUnited States of AmericaAmerica / Canada

Founders & leadership· Y Combinator alumni (X25)

Code Four was founded in 2025 by George Cheng and Dylan Nguyen.

GCGeorge Cheng
George ChengFounderGeorge Cheng studied artificial intelligence, computer science, and brain & cognitive science at MIT.
DNDylan Nguyen
Dylan NguyenCo-FounderDylan Nguyen studied applied mathematics and computer science at MIT and is building law enforcement technology.
NK
Natnael Kahssay

Investors · 15

Webb Investment Networklisted by Webb Investment NetworkSan Francisco · $500K – $750K

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

Y Combinatorlisted by Y CombinatorSan Francisco · $500K

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

AME Cloud VenturesreportedPalo Alto · $1M – $10M

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Andreessen HorowitzreportedMenlo Park · $500K – $50M

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Blast.Clubreported$5.5M

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CRV (Charles River Ventures)reportedBay Area · $250K – $5M

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Halo Labsreported

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James Beshara FundreportedVenice

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Llama venturesreported

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Nava VenturesreportedSan Francisco

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Nivesha Venturesreported

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Pathlight VenturesreportedOld Bridge · $500K – $5M

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Sequoia CapitalreportedMenlo Park · $100K – $50M

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Unpopular VenturesreportedMiami · $100K – $500K

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Images

Code Four photo

Related companies · 7

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EffiGovEffiGov provides AI phone agents for government departments that handle resident inquiries 24/7, answering calls, logging issues, and routing complex requests to staff. The platform serves local government agencies across multiple states.
TruleoTRULEO develops AI-powered software that analyzes jail call data and integrates with law enforcement records and body camera systems to provide criminal intelligence. The platform serves police departments and investigative agencies to enhance officer professionalism and community outcomes.
BluedoorBlue Door provides access to historical San Francisco court records, including litigant, attorney, and judge information dating back to the 1970s, for AI-powered document analysis and research.
PromiseThis page is an article/essay, not a company profile page. Insufficient information to extract a reliable company description.

Companies working in the same space as Code Four.

Legal entities · 1

corporate structure
Code Four Labs Corp.

In the news

Code Four – Bringing Our Cops Homeycombinator.com · May 2025

Frequently asked questions

What does Code Four do?
Code Four develops AI-powered investigation software for police departments that automates evidence processing and fuses data from body-worn cameras, records management systems, phone dumps, recorded audio, and case files. The platform extracts entities, builds timelines, and generates investigative documents to accelerate criminal inquiries.
Who founded Code Four?
Code Four was founded by George Cheng, Dylan Nguyen in 2025.
Who are Code Four's investors?
Code Four's investors include The E14 Fund, Webb Investment Network, Y Combinator, AME Cloud Ventures, Andreessen Horowitz, Blast.Club, CRV (Charles River Ventures), Halo Labs and 7 more.
Where is Code Four headquartered?
Code Four is headquartered in San Francisco, US.