Casco YC Application

Spring 2025Active

Casco went through Y Combinator in the Spring 2025 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: Spring 2025
Industry: B2BSecurity
Team size: 10
Status: Active
Launched: 2025

Founders

Rene BrandelFounder
Ian SaultzFounder & CTO

What Casco does

Casco performs autonomous security testing for your web apps, APIs, infrastructure, and AI systems. Human supervision optionally available. Use Casco for year-round security and get a penetration test report for your SOC2 and ISO27001 compliance certifications. Trusted by 100+ companies from enterprises to fast-moving startups, such as Gusto, CrewAI, Novig, and Accrual. Hack yourself at: --- We already secure software deployed in 60% of Fortune 500 companies and are default alive. [1] [1]

Casco's YC application, reconstructed

Y Combinator application

Casco, Spring 2025 batch. The real form questions, answered from public data.

Founders2
Company7
Progress7
Idea4
Equity3
Curious2
Batch Preference1

Company

Company name

Casco

Describe what your company does in 50 characters or less.

Autonomous security testing for apps, APIs, cloud, AI

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

We built a platform that runs automated security tests on web applications, APIs, cloud infrastructure, and AI systems. It simulates penetration tests continuously, providing compliance reports for SOC2 and ISO27001 without manual effort. Our customers use Casco to find vulnerabilities year-round instead of waiting for one-off audits.

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

We live and work distributed, and will continue to do so after YC.

Explain your decision regarding location.

Security is a global problem and our team is remote. We want to remain flexible and hire the best talent regardless of location. YC's support regardless of location matters most.

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 Casco YC application?

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