Timeline · YC Atlas
Eight metrics traced batch-by-batch across 21 years (S05–P26): status outcomes, stage mix, top-company rate, industry composition, US vs international, team size, country diversity.
YC timeline — all batches
Batch-by-batch metrics across 47 cohorts of Y Combinator, spanning S05 to S26.
- S05: 9 companies, 0 active, 1 top
- W06: 7 companies, 0 active, 0 top
- S06: 11 companies, 1 active, 2 top
- W07: 13 companies, 2 active, 2 top
- S07: 19 companies, 1 active, 1 top
- W08: 21 companies, 2 active, 2 top
- S08: 22 companies, 1 active, 0 top
- W09: 16 companies, 1 active, 1 top
- S09: 26 companies, 7 active, 3 top
- W10: 27 companies, 1 active, 1 top
- S10: 36 companies, 6 active, 3 top
- W11: 45 companies, 12 active, 4 top
- S11: 60 companies, 14 active, 2 top
- W12: 66 companies, 12 active, 6 top
- S12: 83 companies, 23 active, 7 top
- W13: 46 companies, 18 active, 3 top
- S13: 52 companies, 10 active, 3 top
- W14: 74 companies, 29 active, 5 top
- S14: 78 companies, 21 active, 6 top
- W15: 111 companies, 40 active, 5 top
- S15: 104 companies, 46 active, 3 top
- W16: 122 companies, 58 active, 7 top
- S16: 102 companies, 43 active, 5 top
- W17: 116 companies, 55 active, 4 top
- S17: 125 companies, 56 active, 2 top
- W18: 146 companies, 80 active, 4 top
- S18: 131 companies, 79 active, 2 top
- W19: 195 companies, 121 active, 2 top
- S19: 176 companies, 108 active, 1 top
- W20: 229 companies, 138 active, 1 top
- S20: 208 companies, 125 active, 1 top
- W21: 336 companies, 233 active, 2 top
- S21: 391 companies, 294 active, 0 top
- W22: 398 companies, 320 active, 0 top
- S22: 234 companies, 187 active, 0 top
- W23: 274 companies, 214 active, 0 top
- S23: 220 companies, 185 active, 0 top
- W24: 249 companies, 220 active, 0 top
- S24: 248 companies, 237 active, 0 top
- F24: 94 companies, 90 active, 0 top
- W25: 168 companies, 166 active, 0 top
- P25: 144 companies, 140 active, 0 top
- S25: 167 companies, 164 active, 0 top
- F25: 148 companies, 145 active, 0 top
- W26: 200 companies, 199 active, 0 top
- P26: 190 companies, 190 active, 0 top
- S26: 6 companies, 6 active, 0 top