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#23 · Deep Reports

Failed Unicorn Startups: Warning Signs and Autopsies

Study former high-valuation startups through decision errors, market misreads, and warning signs visible only in hindsight.

Full autopsy on every YC company that crossed $500M valuation and then died — decision errors, market misreads, warning signs in hindsight.

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Live sample · source linked · no signup

Three company outcomes used as comparison records

Pro distinguishes collapse cases from survivors and adds the decisions, warning signs, financing context, and documented outcome behind each autopsy.

CompanyBatchCategoryPublic recordSource
ZenefitsW13HR / SaaSAcquired by TriNet (2022).Verify ↗
HipmunkS10Consumer / TravelAcquired by SAP Concur (2016).Verify ↗
CruiseW14Autonomous VehiclesAcquired by GM (2016).Verify ↗

3 representative records · Full analysis and complete dataset in Pro

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What's inside

  • · Structured rows — searchable, filterable, exportable
  • · Source link on every entry — verifiable in one click
  • · Founder, batch, category and outcome tagging
  • · Updated as new public information emerges
  • · Web-readable + PDF download
  • · Complete database included with YC Insights Pro

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FAQ

What can I learn from this free failed unicorn startups sample?
Pro distinguishes collapse cases from survivors and adds the decisions, warning signs, financing context, and documented outcome behind each autopsy. The sample rows are live, source-linked records you can verify without signing up.
What is the YC Dead Unicorns Autopsy Report?
Full autopsy on every YC company that crossed $500M valuation and then died — decision errors, market misreads, warning signs in hindsight. It's part of the YC Insights database — the largest open library of Y Combinator learnings, built entirely from publicly available essays, batch pages, founder interviews and S-1 filings.
Who is the YC Dead Unicorns Autopsy Report for?
Founders, operators and investors who want a structured view of the deep reports side of the YC ecosystem. Whether you're applying to YC, picking an idea, or studying what's worked, this database compresses hundreds of hours of public research into one place.
Where does the data come from?
Everything is sourced from publicly available material: YC's own website, batch pages, founder interviews, partner talks, S-1 filings, and long-form podcasts. Every claim is linkable to a public source — no insider data, no leaks.
How do I access the full YC Dead Unicorns Autopsy Report?
The live sample is available on this page with no signup. YC Insights Pro members get the complete searchable database, every source link, filters, and future updates for $19/month or $190/year.
Is YC Insights affiliated with Y Combinator?
No. YC Insights is an independent research project. We are not affiliated with, endorsed by, or sponsored by Y Combinator. Everything we publish is built from publicly available Y Combinator material with sources linked.
What else is in the YC Insights database?
46 databases in total across founder origins, pivots, first-1000-customer stories, batch packs, vertical packs, deep reports and master playbooks. Browse them all at /database.

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YC Insights is an independent resource. Not affiliated with or endorsed by Y Combinator. Built from publicly available material.