Security

Casco

Website
Founded 2025Origin source ↗Checked 2026-09-15

Overview

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: 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

Company description As recorded 2026-11-08

Product & workflow

Ask Casco questions from the tools you already use, connect live system context to each test, and route verified findings directly to the team responsible for the fix.

Source-reported As recorded 2026-10-19

Founders & team

Previously Transmittr

Company history As recorded 2026-11-08
10team members reported
Source-reported As recorded 2026-09-15

Founded 2025 · Source

News & product activity

Sources & observations

Y Combinator

Profile depthenriched profile
Website observationwebsite reachable
Last website check2026-11-11
Location · source statedNot documented
Pricing evidenceA pricing page was detected
Maturity: Operating · 4 of 6 areas documented

Source-based assessment · automated evidence rules

The company website explicitly reports customer or user adoption. This is a source-based assessment of a company claim; scale and revenue are not independently verified.

Company website: home Checked 2026-10-19

Trusted by 400+ teams shipping software that matters

Maturity is an evidence-based assessment, not a success rating. It may understate the current stage where evidence is limited. Coverage records documented areas, not a complete or independently audited company history.

Stage definitions
independent websitesource corroborationreachable websitedescriptive evidenceclassified market and modelsourced peoplesourced founding yearpricing page observedrecent publishing observed