Lexius YC Application

Winter 2026Active

Lexius went through Y Combinator in the Winter 2026 batch as a B2B company. Below: what the company does, who founded it, and its application to YC, reconstructed question by question in the real YC form.

YC batch: Winter 2026
Industry: B2BSecurity
Team size: 3
Status: Active
Launched: 2025

Founders

David ElskampFounder
Liam WebsterFounder

What Lexius does

Lexius turns existing security cameras into an AI security guard that detects, documents, and alerts incidents like shoplifting and slip-and-falls. Millions of locations already have cameras but no intelligence. Replacing them costs $50K to $100K per site. Lexius upgrades every camera instantly, no rip and replace, no new hardware. Real-world camera systems are messy, fragmented, and decades old, and AI breaks on low-quality CCTV. The hard part isn’t the model, it’s making unreliable systems work at scale with accuracy high enough for real decisions. Lexius starts with security and liability, and becomes the operating system for physical spaces.

Lexius's YC application, reconstructed

Y Combinator application

Lexius, Winter 2026 batch. The real form questions, answered from public data.

Founders2
Company7
Progress7
Idea4
Equity3
Curious2
Batch Preference1

Company

Company name

Lexius

Describe what your company does in 50 characters or less.

AI for Corporate Security Cameras

What is your company going to make? Please describe your product and what it does or will do.

We turn existing security cameras into AI security guards that detect and alert incidents like shoplifting and slip-and-falls. Our product upgrades legacy camera systems instantly without new hardware. The main challenge is handling low-quality, fragmented CCTV footage and still delivering accurate, actionable alerts at scale.

Where do you live now, and where would the company be based after YC?

We live in San Francisco, CA, and the company is based here.

Explain your decision regarding location.

We live and work in San Francisco because it's a hub for AI talent and security tech customers. It puts us close to potential partners and investors.

21 more answers in the full application

Founders, Progress, Idea, Equity, Curious, Batch Preference are in the full version. Create a free account to open it in YC Insights, next to every other YC batch.

See full application

Frequently Asked Questions

Is this the real Lexius YC application?

No. Y Combinator keeps submitted applications private. This is a reconstruction: the real YC form questions, answered from Lexius's public data (launch notes, founder backgrounds, product description). It shows how a company like Lexius would present itself to YC, not the text they submitted.