Article · ~15 min read

The Top 12 Reasons Startups Fail

CB Insights Free Beginner

CB Insights read hundreds of real startup postmortems and found that poor product-market fit (around 43 percent) is the single biggest root cause of failure, ahead of running out of money. If you want to spot the warning signs early, start with the patterns of founders who already hit them: a market too small, a problem not painful enough, a product nobody urgently wanted. Treat it as a checklist of ways an idea can quietly go nowhere for a year.

  • The top root cause of failure is building something with no real market need, not running out of cash (cash is usually where the story ends, not why).
  • Weak demand often hides behind early traction, so polite interest and a few friendly users can mask an idea that never widens into a market.
  • The list doubles as an early-warning checklist: if your idea already leans on bad timing, thin unit economics, or a problem people can live with, take that seriously now.
Open on cbinsights.com ↗

It answers 7 questions

  1. How big does my market need to be for this to be a real business?
  2. What actually counts as an MVP, and what's the smallest one I can get away with?
  3. How do I tell whether a market is genuinely emerging or just a fad that will fade in a year?
  4. How do I test whether people will actually pay, not just say they like it?
  5. What are the biggest mistakes founders make trying to land their first customers that I should avoid?
  6. What are the warning signs that an idea will quietly waste a year of my life?
  7. I relaunched a product that failed the first time. How do I frame it so it doesn't look like I'm just recycling a flop?

Read with it

  1. The single best thing ever written on customer conversations. It teaches you to ask about the customer's life and past... momtestbook.com Book · ~130 pages The Mom Test Rob Fitzpatrick
  2. The essay that put 'product-market fit' into the startup vocabulary. Read it for the gut-level description of what PMF feels... pmarchive.com Essay · ~15 min read The Only Thing That Matters Marc Andreessen
  3. Turns the vague feeling of product-market fit into a number you can move. Ask users how they would feel if they could no longer... First Round Review Article · ~20 min read How Superhuman Built an Engine to Find Product/Market Fit Rahul Vohra
  4. Video · ~50 min How to Evaluate Startup Ideas Kevin Hale, Y Combinator
  5. The definitive essay on where good ideas come from: notice problems you personally have, don't force it. Use it as the lens for... paulgraham.com Essay · ~20 min read How to Get Startup Ideas Paul Graham
  6. The permission slip to recruit users by hand, do things manually, and deliver 'insanely great' experiences to your first few... paulgraham.com Essay · ~15 min read Do Things That Don't Scale Paul Graham
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