---
type: faq
title: "What's the main reason startups fail?"
description: "The top killer is not competition, it is cash. Running out of cash is cited in about 38% of startup post-mortems, per CB Insights Underestimating operating"
resource: https://www.4over4.com/faqs/general/what-s-the-main-reason-startups-fail
tags: ["Industry", "faq"]
timestamp: 2026-07-20T18:54:40.856Z
---

# What's the main reason startups fail?

The top killer is not competition, it is cash. Running out of cash is cited in about 38% of startup post-mortems, per CB Insights Underestimating operating

Part of the **Industry** hub. See [all faq concepts](index.md).

- Page type: faq
- Hub: Industry
- URL: https://www.4over4.com/faqs/general/what-s-the-main-reason-startups-fail