MouseCat YC Application

Winter 2026Active

MouseCat 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: B2B
Team size: 2
Status: Active
Launched: 2026

Founders

Nicholas AldridgeCo-Founder & CEO
Joseph McAllisterCo-Founder & CTO

What MouseCat does

MouseCat enables companies to automatically detect, investigate, and mitigate emerging fraud trends

MouseCat's YC application, reconstructed

Y Combinator application

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

Founders2
Company7
Progress7
Idea4
Equity3
Curious2
Batch Preference1

Company

Company name

MouseCat

Describe what your company does in 50 characters or less.

AI-powered fraud investigations

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

We are building an AI system that helps companies automatically detect and investigate emerging fraud trends. Our product analyzes client data to identify suspicious activity, then surfaces actionable insights so fraud teams can respond faster and more effectively.

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

We live and work in New York City, and MouseCat will be based here after YC as well.

Explain your decision regarding location.

NYC has a concentration of financial service firms and compliance teams that are our early users. Being close to customers and partners is crucial for a domain as nuanced as fraud detection.

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 MouseCat YC application?

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