Kastle YC Application

Summer 2024Active

Kastle went through Y Combinator in the Summer 2024 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: Summer 2024
Industry: B2B
Team size: 10
Status: Active
Launched: 2024

Founders

Rishi ChoudharyFounder
Nitish PoddarFounder

What Kastle does

Kastle is an AI voice agent for mortgage servicing. We help servicers collect payments, verify new borrowers, and qualify new loan inquiries over the phone. Rishi and Nitish met at UIUC where they graduated with degrees in systems engineering and computer science. Rishi was the founding Product Manager for Redfin’s Mortgage Marketplace at 22 and grew the business from $3M to $6M in revenue in 9 months. Nitish patented Verkada’s motion search system and was the youngest tech lead at the company at 23. While building Redfin's Mortgage Marketplace Rishi realized traditional lenders didn't have the infrastructure to service online inquiries and were losing customers. Nitish and Rishi are building Kastle to help traditional financial services companies better interface with their customers.

Kastle's YC application, reconstructed

Y Combinator application

Kastle, Summer 2024 batch. The real form questions, answered from public data.

Founders2
Company7
Progress7
Idea4
Equity3
Curious2
Batch Preference1

Company

Company name

Kastle

Describe what your company does in 50 characters or less.

AI agents for mortgage servicing

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

We build AI voice agents that handle mortgage servicing tasks over the phone. Our product collects payments, verifies new borrowers, and qualifies new loan inquiries so servicers can automate calls and reduce manual work.

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

We live in San Francisco, CA, and plan to keep Kastle based here after YC.

Explain your decision regarding location.

San Francisco has the best access to mortgage servicers and AI talent, so it's the natural place to build Kastle.

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 Kastle YC application?

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