Y Combinator Startups

Startups funded by Y Combinator that have been publicly announced and still have functional websites.

159 of 4,617 sites · synced from the official YC API · rank is the average of Tranco, Majestic and Umbrella; Radar and CrUX shown for context · all 5 are flawed, that's the point. · tap a row for the breakdown

Notes:all

’05–’09S05 · W06 · S06 · W07 · S07 · W08 · S08 · W09 · S09

’10–’14W10 · S10 · W11 · S11 · W12 · S12 · W13 · S13 · W14 · S14

’15–’19W15 · S15 · W16 · S16 · W17 · S17 · W18 · S18 · W19 · S19

’20–’24W20 · S20 · W21 · S21 · W22 · S22 · W23 · S23 · W24 · S24 · F24

’25–’27W25 · S25 · F25 · W26 · S26 · F26 · W27

W25 · 159 sites · ← all sites

159 live · 5 parked or gone — show all

#URLThis weekAvg rankTrancoRadarCrUXMajesticUmbrellaChecked

1

axiom.trade190,844 avg · W25▲ 9,293190,84412,368top 10ktop 50k238,911321,252Sep 14

Tranco 12,368Radar top 10kCrUX top 50kMajestic 238,911Umbrella 321,252checked Sep 14

2

mastra.ai193,590 avg · W25▲ 3,688193,590290,447top 500ktop 1M96,732—Sep 14

Tranco 290,447Radar top 500kCrUX top 1MMajestic 96,732Umbrella —checked Sep 14

3

browser-use.com248,223 avg · W25▼ 6,970248,22390,533top 50k—78,154575,981Sep 14

Tranco 90,533Radar top 50kCrUX —Majestic 78,154Umbrella 575,981checked Sep 14

4

confident-ai.com296,572 avg · W25▲ 974296,572428,718——164,426—Sep 14

Tranco 428,718Radar —CrUX —Majestic 164,426Umbrella —checked Sep 14

5

athenahq.ai354,542 avg · W25▼ 3,508354,542267,512top 500k—221,822574,292Sep 14

Tranco 267,512Radar top 500kCrUX —Majestic 221,822Umbrella 574,292checked Sep 14

6

getswerve.com393,363 avg · W25▲ 1,043393,363249,206top 200ktop 1M—537,519Sep 14

Tranco 249,206Radar top 200kCrUX top 1MMajestic —Umbrella 537,519checked Sep 14

7

misprint.com436,166 avg · W25▼ 26,387436,166436,166top 500k———Sep 14

Tranco 436,166Radar top 500kCrUX —Majestic —Umbrella —checked Sep 14

8

adam.new466,417 avg · W25▼ 1,280466,417—top 1M—466,417—Sep 14

Tranco —Radar top 1MCrUX —Majestic 466,417Umbrella —checked Sep 14

9

afterquery.com475,959 avg · W25▲ 72,196475,959132,686top 100k—737,901557,289Sep 14

Tranco 132,686Radar top 100kCrUX —Majestic 737,901Umbrella 557,289checked Sep 14

10

onlook.com491,686 avg · W25▲ 37,287491,686———491,686—Sep 14

Tranco —Radar —CrUX —Majestic 491,686Umbrella —checked Sep 14

11

a0.dev546,116 avg · W25▲ 18,107546,116—top 1M—546,116—Sep 14

Tranco —Radar top 1MCrUX —Majestic 546,116Umbrella —checked Sep 14

12

solidroad.com575,630 avg · W25▲ 11,484575,630———575,630—Sep 14

Tranco —Radar —CrUX —Majestic 575,630Umbrella —checked Sep 14

13

hud.ai746,293 avg · W25▲ 207,362746,293746,293top 500k———Sep 14

Tranco 746,293Radar top 500kCrUX —Majestic —Umbrella —checked Sep 14

14

pickle.com751,306 avg · W25751,306———751,306—Aug 27

Tranco —Radar —CrUX —Majestic 751,306Umbrella —checked Aug 27

15

zeroentropy.dev843,189 avg · W25, acquired▲ 41,456843,189———843,189—Sep 14

Tranco —Radar —CrUX —Majestic 843,189Umbrella —checked Sep 14

16

bild.ai848,868 avg · W25▼ 85,775848,868———848,868—Sep 14

Tranco —Radar —CrUX —Majestic 848,868Umbrella —checked Sep 14

17

asteroid.ai862,533 avg · W25▼ 356,726862,533862,533top 1M———Sep 14

Tranco 862,533Radar top 1MCrUX —Majestic —Umbrella —checked Sep 14

18

weaveos.com889,926 avg · W25▲ 59,858889,926———889,926—Sep 14

Tranco —Radar —CrUX —Majestic 889,926Umbrella —checked Sep 14

19

mosaic.so890,285 avg · W25890,285890,285top 500k———Sep 14

Tranco 890,285Radar top 500kCrUX —Majestic —Umbrella —checked Sep 14

20

assistant-ui.com960,252 avg · W25960,252—top 1M—960,252—Sep 14

Tranco —Radar top 1MCrUX —Majestic 960,252Umbrella —checked Sep 14

21

societies.io972,777 avg · W25▼ 21,374972,777———972,777—Sep 11

Tranco —Radar —CrUX —Majestic 972,777Umbrella —checked Sep 11

22

leapingai.com981,891 avg · W25981,891———981,891—Sep 14

Tranco —Radar —CrUX —Majestic 981,891Umbrella —checked Sep 14

23

vantel.com986,049 avg · W25▲ 1,800986,049986,049————Sep 8

Tranco 986,049Radar —CrUX —Majestic —Umbrella —checked Sep 8

24

10xdental.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

25

a1zap.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

26

agentin.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

27

alice.tech— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

28

archon.inc— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

29

artifact.engineer— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

30

awen.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

31

axal.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

32

bindwell.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

33

blindpay.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

34

bud.app— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

35

butter.dev— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

36

bystreet.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

37

calltree.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

38

candor.security— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

39

cardamon.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

40

carecycle.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

41

caseflood.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

42

cedarcopilot.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

43

cifrato.ai— avg · W25———top 1M——Aug 10

Tranco —Radar —CrUX top 1MMajestic —Umbrella —checked Aug 10

44

closure-intel.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

45

codevisor.dev— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

46

conntour.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

47

contrario.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

48

corsair.dev— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

49

cuckoo.so— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

50

dalus.io— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

51

dartboard.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

52

delineate.pro— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

53

dotwave.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

54

edexia.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

55

enhancedradar.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

56

excellence-ai.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

57

exintherapeutics.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

58

exla.ai— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

59

finbar.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

60

firaresearch.com— avg · W25———————

Tranco —Radar —CrUX —Majestic —Umbrella —checked never

a — means that source hasn't ranked the site; the average uses whichever exact ranks exist

History · every change, public

Sep 14 06:03sync with the YC sync, 9 sites changed

Sep 13 06:03sync with the YC sync, 1 site changed

Sep 12 06:02sync with the YC sync, 6 sites changed

Sep 11 06:03sync with the YC sync, 11 sites changed

Sep 10 06:03sync with the YC sync, 15 sites changed

Sep 9 06:03sync with the YC sync, 13 sites changed

Sep 8 06:03sync with the YC sync, 5 sites shown

This list is kept in step with the official YC API, so it isn't editable here. This is just for fun.