Y Combinator Startups

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

140 of 5,025 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

P25 · P26

P25 · 140 sites · ← all sites

140 sites, including 5 parked or gone · show only live sites

#URLThis weekAvg rankTrancoRadarCrUXMajesticUmbrellaChecked

1

willowvoice.com357,631 avg · P25▲ 1,938357,631128,459top 50k—340,841603,592Jul 30

Tranco 128,459Radar top 50kCrUX —Majestic 340,841Umbrella 603,592checked Jul 30

2

better-auth.com410,079 avg · P25▼ 863410,079210,532top 500ktop 1M178,958840,746Jul 30

Tranco 210,532Radar top 500kCrUX top 1MMajestic 178,958Umbrella 840,746checked Jul 30

3

pgdog.dev433,733 avg · P25▲ 7,661433,733———433,733—Jul 30

Tranco —Radar —CrUX —Majestic 433,733Umbrella —checked Jul 30

4

cua.ai563,112 avg · P25▼ 25,482563,112—top 500k—563,112—Jul 30

Tranco —Radar top 500kCrUX —Majestic 563,112Umbrella —checked Jul 30

5

tinfoil.sh607,463 avg · P25▲ 519607,463367,733top 200k—847,192—Jul 30

Tranco 367,733Radar top 200kCrUX —Majestic 847,192Umbrella —checked Jul 30

6

usenaive.ai611,779 avg · P25▲ 19,631611,779————611,779Jul 30

Tranco —Radar —CrUX —Majestic —Umbrella 611,779checked Jul 30

7

probo.com710,560 avg · P25▼ 24,749710,560———710,560—Jul 30

Tranco —Radar —CrUX —Majestic 710,560Umbrella —checked Jul 30

8

cubic.dev716,814 avg · P25▲ 38,575716,814—top 1M—716,814—Jul 30

Tranco —Radar top 1MCrUX —Majestic 716,814Umbrella —checked Jul 30

9

sim.ai776,001 avg · P25▲ 43,319776,001898,857top 1M—555,015874,131Jul 30

Tranco 898,857Radar top 1MCrUX —Majestic 555,015Umbrella 874,131checked Jul 30

10

klavis.ai802,059 avg · P25▲ 88,538802,059706,951top 500k—897,167—Jul 30

Tranco 706,951Radar top 500kCrUX —Majestic 897,167Umbrella —checked Jul 30

11

blaxel.ai990,884 avg · P25990,884—top 1M—990,884—Jul 30

Tranco —Radar top 1MCrUX —Majestic 990,884Umbrella —checked Jul 30

12

acolite.ai— avg · P25———————

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

13

adentris.com— avg · P25———————

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

14

aegishealth.us— avg · P25———————

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

15

airweave.ai— avg · P25———————

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

16

alkali.engineering— avg · P25———————

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

17

almond.bot— avg · P25———————

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

18

alpharesearch.nyc— avg · P25———————

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

19

aravolta.com— avg · P25———————

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

20

atlog.ai— avg · P25———————

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

21

attunehq.com— avg · P25———————

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

22

atum.works— avg · P25———————

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

23

avallon.ai— avg · P25———————

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

24

aviro.ai— avg · P25———————

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

25

besimple.ai— avg · P25———————

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

26

bitboard.work— avg · P25———————

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

27

bitpatrol.io— avg · P25, acquired———————

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

28

bloom.diy— avg · P25——top 1M———Jul 30

Tranco —Radar top 1MCrUX —Majestic —Umbrella —checked Jul 30

29

blueshoe.com— avg · P25———————

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

30

bondapp.io— avg · P25———————

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

31

boostrobotics.ai— avg · P25———————

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

32

bramantebio.com— avg · P25———————

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

33

capacitive.ai— avg · P25———————

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

34

cartpole.com— avg · P25———————

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

35

cascadespace.com— avg · P25———————

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

36

casco.com— avg · P25———————

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

37

chestnutmortgage.com— avg · P25———————

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

38

chrt.com— avg · P25———————

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

39

claimhealth.com— avg · P25———————

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

40

clarm.com— avg · P25———————

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

41

clidey.com— avg · P25———————

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

42

codefour.us— avg · P25———————

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

43

combinely.ai— avg · P25———————

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

44

cotool.ai— avg · P25———————

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

45

crimson.law— avg · P25———————

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

46

docketqa.com— avg · P25———————

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

47

eloquentai.co— avg · P25———————

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

48

flotthq.com— avg · P25———————

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

49

foundation-industries.com— avg · P25———————

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

50

freesolo.co— avg · P25———————

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

51

frekil.com— avg · P25———————

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

52

galenai.comgone— avg · P25, acquired———————

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

this domain is gone; the rank is what it left behind — the homepage returns 404

53

getanana.com— avg · P25———————

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

54

getauctor.com— avg · P25——top 500k———Jul 30

Tranco —Radar top 500kCrUX —Majestic —Umbrella —checked Jul 30

55

getbluejay.ai— avg · P25———————

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

56

getcohesiveai.com— avg · P25———————

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

57

getden.io— avg · P25———————

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

58

getkashikoi.com— avg · P25———————

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

59

getnao.io— avg · P25———————

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

60

godela.ai— avg · P25———————

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

61

golf.dev— avg · P25———————

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

62

habitrobotics.com— avg · P25———————

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

63

hanji.dev— avg · P25———————

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

64

helix-db.com— avg · P25———————

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

65

hemut.com— avg · P25———————

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

66

herm.run— avg · P25———————

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

67

humanbehavior.co— avg · P25———————

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

68

irbc.com— avg · P25———————

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

69

jeevyfabrication.com— avg · P25———————

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

70

kaelio.com— avg · P25———————

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

71

kaizenautomation.com— avg · P25———————

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

72

kestral.ai— avg · P25———————

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

73

kirana-ai.com— avg · P25———————

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

74

labric.co— avg · P25———————

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

75

leeroo.com— avg · P25———————

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

76

libretto.sh— avg · P25———————

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

77

lucis.life— avg · P25——top 1M———Jul 30

Tranco —Radar top 1MCrUX —Majestic —Umbrella —checked Jul 30

78

lumari.ai— avg · P25———————

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

79

mbodi.ai— avg · P25———————

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

80

mesmer.co— avg · P25———————

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

Jul 30 06:02sync with the YC sync, 15 sites changed

Jul 29 06:03sync with the YC sync, 23 sites changed

Jul 28 06:03sync with the YC sync, 9 sites changed

Jul 27 06:02sync with the YC sync, 7 sites changed

Jul 26 06:03sync with the YC sync, 4 sites changed

Jul 25 06:03sync with the YC sync, 2 sites shown

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