Y Combinator companies, by batch

This directory lists 6207 YC companies across every batch since 2005, grouped by batch above. YC itself reports funding more than 5,000 companies; a small number are excluded here.

No. YC keeps submitted applications private. Every application here is a reconstruction: the real YC form questions, answered from the company's public data. Each page says so, and shows the Company section free.

By season and year: Winter, Spring, Summer and Fall, so W26 is Winter 2026. YC moved from two batches a year to four in 2025, which is why recent years list more batches than older ones.

YC publishes roughly a 1% acceptance rate. Reading how accepted companies describe their product, progress and founders is the most concrete preparation available before you write your own answers.

Pick five companies from your industry in recent batches, read their reconstructed applications side by side, and note how each answers the same question. Then write yours to that standard.