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 48 cohorts of Y Combinator, spanning S05 to F26.
- S05: 8 companies, 0 active, 1 top
- W06: 7 companies, 0 active, 0 top
- S06: 10 companies, 1 active, 2 top
- W07: 14 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, 13 active, 2 top
- W12: 66 companies, 12 active, 6 top
- S12: 83 companies, 22 active, 7 top
- W13: 46 companies, 17 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: 110 companies, 40 active, 5 top
- S15: 104 companies, 44 active, 3 top
- W16: 122 companies, 58 active, 7 top
- S16: 102 companies, 42 active, 5 top
- W17: 116 companies, 54 active, 4 top
- S17: 125 companies, 55 active, 2 top
- W18: 146 companies, 78 active, 4 top
- S18: 131 companies, 77 active, 2 top
- W19: 194 companies, 118 active, 2 top
- S19: 174 companies, 102 active, 1 top
- W20: 229 companies, 134 active, 1 top
- S20: 209 companies, 122 active, 1 top
- W21: 335 companies, 228 active, 2 top
- S21: 391 companies, 286 active, 0 top
- W22: 398 companies, 309 active, 0 top
- S22: 233 companies, 183 active, 0 top
- W23: 274 companies, 199 active, 0 top
- S23: 220 companies, 179 active, 0 top
- W24: 248 companies, 210 active, 0 top
- S24: 248 companies, 233 active, 0 top
- F24: 94 companies, 89 active, 0 top
- W25: 165 companies, 159 active, 0 top
- P25: 144 companies, 136 active, 0 top
- S25: 166 companies, 161 active, 0 top
- F25: 145 companies, 140 active, 0 top
- W26: 198 companies, 195 active, 0 top
- P26: 193 companies, 191 active, 0 top
- S26: 230 companies, 230 active, 0 top
- F26: 129 companies, 129 active, 0 top