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Raycaster

YC F24

New York City, US · Founded 2024 · 6 employees · Hiring · 7 known investors

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Raycaster is an AI workspace that reviews and revises regulatory and clinical documents (protocols, reports, modules, quality documentation) for biopharma companies to keep submissions aligned with scientific changes. It works on native document formats and traces impacts across interconnected dossiers for IND through lifecycle management.

Also known as 7th Ave Labs, Inc. · Atlas

AI & Machine LearningBiotechEnterprise SoftwareFuture of WorkHealthtechSaaSArtificial IntelligenceData LabelingUnited States of AmericaAmerica / CanadaPartly Remote

Founders & leadership· Y Combinator alumni (F24)

Raycaster was founded in 2024 by Levi Lian.

LLLevi Lian
Levi LianFounder · CEOLevi Lian studied computer science at Stanford, where he conducted AI research. He previously built AI products at Solvvy (acquired by Zoom), Intuit, and Uber, and now works on drug-development acceleration through AI at Raycaster.
YZ
Yifan ZhouTech Lead
TR
team raycasterRecruiter
AP
Anne PagadOperations Manager
AH
Anthony Humay
DL
Diem Linh DangGrowthformer
US
Una SiuGrowthformer

Investors · 7

Maxitechlisted by Maxitech

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 · sacra.com · open dataset · 5k.vc investor directory · Not right? Tell us

Andreessen HorowitzreportedMenlo Park · $500K – $50M

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

Phoenix FundreportedNew York

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

Rock Yard VenturesreportedBuena Park · $10K – $100K

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

SAV (Scale Asia Ventures)reportedPalo Alto

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

Also in the syndicate · 1

Scale Asia Ventures

Funding

SEC filings, press & company announcements

Source: company announcements and press reports — follow each round's link for the claim.

Related companies · 5

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SpadeSpade provides transaction data enrichment and standardization for financial institutions, fintechs, platforms, and AI companies. The company transforms inconsistent transaction streams into structured, geolocation-matched intelligence with fast processing and high accuracy.
DatoricDatoric sources and licenses ethically obtained voice, video, and multimodal training data for frontier AI development, working directly with consented, compensated contributors such as native speakers and domain experts. Each dataset carries verifiable provenance and clean licenses aimed at AI model teams building multimodal systems.
Moving AtomsMoving Atoms develops robotics AI, including a world model called Atom 1 that predicts future states from a robot's visual input and control signals to learn and execute motion. It uses agents and a frontier LLM to grade robot rollouts step by step, surfacing failure modes with footage.
RitivelRitivel builds an AI-native platform that automates regulatory workflows and documentation for life sciences companies, helping accelerate the submission of therapies to patients.

Companies working in the same space as Raycaster.

Legal entities · 1

corporate structure
7th Ave Labs, Inc.

In the news

The Early Signal Advantage: A Modern Guide to Rethinking BD Strategy | Raycasterraycaster.ai · Apr 2026Raycaster - Cursor for regulatory documents in drug developmentycombinator.com · Dec 2025The four startups from YC's Fall batch that enterprises should pay attention totechcrunch.com · Dec 2024

Frequently asked questions

What does Raycaster do?
Raycaster is an AI workspace that reviews and revises regulatory and clinical documents (protocols, reports, modules, quality documentation) for biopharma companies to keep submissions aligned with scientific changes. It works on native document formats and traces impacts across interconnected dossiers for IND through lifecycle management.
Who founded Raycaster?
Raycaster was founded by Levi Lian in 2024.
Who are Raycaster's investors?
Raycaster's investors include Maxitech, Y Combinator, Andreessen Horowitz, Phoenix Fund, Rock Yard Ventures, SAV (Scale Asia Ventures).
Where is Raycaster headquartered?
Raycaster is headquartered in New York City, US.