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Casco (YC X25) — Autonomous security testing for web apps, APIs, cloud, and AI systems

Casco appears in Y Combinator's company directory in the Spring 2025 batch, listed 2025-05-19. Autonomous security testing for web apps, APIs, cloud, and AI systems.

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Casco: Accepted into Y Combinator Spring 2025

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Casco

New accelerator entry · 2025-05-19 · the record

Spring 2025
batch
10
people
Early
stage
Unspecified
region
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In their words

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. Hack yourself at: https://casco.com --- We already secure software deployed in 60% of Fortune 500 companies and are default alive. [1] [1] http://www.paulgraham.com/aord.html

What the record says

BatchSpring 2025
Announced2025-05-19
StageEarly
StatusActive
Team size10
IndustryB2B
Sub-industryB2B -> Security
RegionsUnspecified
HiringYes
Sitehttps://casco.com
Previously known asTransmittr

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If you're behind Casco: acceptance into a YC batch is one of the few weeks a young company gets looked up by people who matter — investors, other founders, press. FoxPlug turns the commits, deploys, and releases you're already making into that story automatically, so anyone who looks finds something current. FoxChat puts a guide on your own site so the people YC's own page just sent you don't read one line and leave.

Sourced from the company's Y Combinator directory entry.

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Permanent URL: https://mentionfox.com/funding/yc-casco
Last updated 2026-09-26
Primary record: Y Combinator directory entry
Casco (YC X25) — Autonomous security testing for web apps, APIs, cloud, and AI systems. MentionFox, 2026-09-26. https://mentionfox.com/funding/yc-casco