"Make something people want"
Y Combinator's investment thesis centers on finding founders who can execute rapidly and demonstrate clear evidence of product-market fit. They prioritize startups that show measurable traction, even at small scale, because early growth patterns often predict future success. YC believes strongly in the power of determined founders who can iterate quickly based on user feedback.
"The most successful founders are the ones who are most determined, not the ones who are most brilliant."
Direct user feedback trumps market research. YC founders are expected to have deep, ongoing conversations with customers.
Ship a minimum viable product quickly and iterate. Perfectionism is the enemy of progress.
Early-stage startups should focus on manual, high-touch approaches before automating.
Week-over-week growth is the primary metric. 5-7% weekly growth is considered good for YC startups.
Evidence of grit, resilience, and ability to overcome obstacles
Measurable user/revenue growth and engagement metrics
Total addressable market potential, even from niche starting point
Clear articulation of what you're building and for whom
Evidence of rapid shipping, iteration, and learning
Plain-English definitions for the jargon Y Combinator investors lean on most.
Other glossary entries link back to Y Combinator through their related terms, jump straight to the definitions that reference this framework.
How Y Combinator weighs each of the slides investors weigh hardest, long-form deep dives.
Technical founder with domain expertise who ships fast and talks to users obsessively
$500K for 7% equity (standard YC deal)
The complete deck rebuild system Deckmetric's team uses with founder decks, framework, template, worksheet, and a fully scored worked example. Rebuild yours in an afternoon, no subscription, instant download.