Y Combinator Startups

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

194 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

W26 · 194 sites · ← all sites

194 sites, including 3 parked or gone · show only live sites

#URLThis weekAvg rankTrancoRadarCrUXMajesticUmbrellaChecked

1

arcprize.org103,865 avg · W26▲ 1,355103,865160,969top 1Mtop 1M46,760—Jul 30

Tranco 160,969Radar top 1MCrUX top 1MMajestic 46,760Umbrella —checked Jul 30

2

luel.ai191,931 avg · W26▲ 2,944191,931142,459top 200ktop 100k—241,402Jul 30

Tranco 142,459Radar top 200kCrUX top 100kMajestic —Umbrella 241,402checked Jul 30

3

shortkit.dev209,173 avg · W26▲ 17,927209,173209,173top 500k———Jul 30

Tranco 209,173Radar top 500kCrUX —Majestic —Umbrella —checked Jul 30

4

didit.me247,671 avg · W26▲ 5,615247,671148,287top 100ktop 1M397,152197,573Jul 30

Tranco 148,287Radar top 100kCrUX top 1MMajestic 397,152Umbrella 197,573checked Jul 30

5

21st.dev263,577 avg · W26▲ 29,152263,57772,567top 50ktop 100k334,777383,387Jul 30

Tranco 72,567Radar top 50kCrUX top 100kMajestic 334,777Umbrella 383,387checked Jul 30

6

heypocket.com268,900 avg · W26▼ 205268,900251,015top 200ktop 500k—286,785Jul 30

Tranco 251,015Radar top 200kCrUX top 500kMajestic —Umbrella 286,785checked Jul 30

7

paxhistoria.co356,052 avg · W26▲ 15,637356,05243,296top 50ktop 50k—668,807Jul 30

Tranco 43,296Radar top 50kCrUX top 50kMajestic —Umbrella 668,807checked Jul 30

8

mendral.com555,339 avg · W26▲ 21,671555,339—top 1M—555,339—Jul 30

Tranco —Radar top 1MCrUX —Majestic 555,339Umbrella —checked Jul 30

9

openspec.dev616,029 avg · W26▲ 14,743616,029373,937top 200k—913,147561,004Jul 30

Tranco 373,937Radar top 200kCrUX —Majestic 913,147Umbrella 561,004checked Jul 30

10

gru.space801,937 avg · W26▼ 1,485801,937———801,937—Jul 30

Tranco —Radar —CrUX —Majestic 801,937Umbrella —checked Jul 30

11

oximy.com884,040 avg · W26▲ 76,710884,040884,040top 500k———Jul 30

Tranco 884,040Radar top 500kCrUX —Majestic —Umbrella —checked Jul 30

12

10xscience.com— avg · W26———————

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

13

aemon.ai— avg · W26———————

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

14

agenticfabriq.comparked— avg · W26———————

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

this domain is parked; the rank measures the placeholder, not the company — the domain is on namebrightdns.com's nameservers, a domain sale platform

15

alt-x.co— avg · W26———————

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

16

approxima.ai— avg · W26———————

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

17

ashr.io— avg · W26———————

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

18

aurorincad.com— avg · W26———————

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

19

autositu.com— avg · W26———————

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

20

autumnai.comredirected— avg · W26———————

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

this domain now redirects elsewhere; the rank measures whoever it points at — the homepage redirects to autumn.ai, a different site

21

avoice.co— avg · W26———————

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

22

axionorbital.space— avg · W26———————

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

23

axisanalysis.com— avg · W26———————

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

24

baseframe.co— avg · W26———————

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

25

beaconhealth.ai— avg · W26———————

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

26

beesafe.ai— avg · W26———————

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

27

beyondreachlabs.com— avg · W26———————

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

28

bookoapp.com— avg · W26———————

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

29

bubblelab.ai— avg · W26———————

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

30

buildwithglue.com— avg · W26———————

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

31

burthq.com— avg · W26———————

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

32

buttoncomputer.com— avg · W26———————

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

33

byteport.com— avg · W26———————

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

34

caj.al— avg · W26———————

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

35

caretta.so— avg · W26———————

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

36

catchbackcards.com— avg · W26———————

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

37

celltype.com— avg · W26———————

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

38

chasi.ai— avg · W26———————

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

39

claimglide.com— avg · W26———————

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

40

codewisp.ai— avg · W26———————

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

41

cofia.ai— avg · W26———————

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

42

compresr.ai— avg · W26———————

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

43

condor.energy— avg · W26———————

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

44

confluence.sh— avg · W26———————

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

45

congruent.io— avg · W26———————

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

46

constellation.space— avg · W26———————

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

47

copperlane.ai— avg · W26———————

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

48

corelayer.com— avg · W26———————

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

49

corvera.ai— avg · W26———————

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

50

crosslayerlabs.com— avg · W26———————

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

51

cumuluslabs.io— avg · W26———————

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

52

daivin.tech— avg · W26———————

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

53

dev.fast— avg · W26———————

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

54

dittobio.com— avg · W26———————

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

55

docurahealth.com— avg · W26———————

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

56

doomersion.com— avg · W26———————

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

57

eigenpal.com— avg · W26———————

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

58

emdash.ai— avg · W26———————

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

59

endclose.com— avg · W26———————

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

60

envariant.ai— avg · W26———————

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

61

fed10.ai— avg · W26———————

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

62

fenrock.ai— avg · W26———————

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

63

fern.bot— avg · W26———————

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

64

fixture.app— avg · W26———————

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

65

foreman.co— avg · W26———————

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

66

fort.cx— avg · W26———————

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

67

forum.market— avg · W26———————

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

68

fullseam.com— avg · W26———————

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

69

general.legal— avg · W26———————

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

70

generalastro.com— avg · W26———————

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

71

getbalance.ai— avg · W26———————

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

72

haladir.com— avg · W26———————

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

73

helloeos.ai— avg · W26———————

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

74

hlaboratories.com— avg · W26———————

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

75

humanarchive.ai— avg · W26———————

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

76

incidentfox.ai— avg · W26———————

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

77

instinct.xyz— avg · W26———————

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

78

inventoryquant.com— avg · W26———————

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

79

inviscidai.com— avg · W26———————

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

80

jinba.io— avg · W26———————

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

81

kita.ai— avg · W26———————

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

82

klausai.com— avg · W26———————

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

83

lance.live— avg · W26———————

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

84

laurence.com— avg · W26———————

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

85

legalos.ai— avg · W26———————

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

86

lexius.ai— avg · W26———————

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

87

lucenthq.com— avg · W26——top 1M———Jul 19

Tranco —Radar top 1MCrUX —Majestic —Umbrella —checked Jul 19

88

mangomedical.io— avg · W26———————

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

89

mantisbiotech.com— avg · W26———————

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

90

martini.film— avg · W26———————

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

91

maywoodai.comgone— avg · W26———————

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

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

92

meetmirabelle.com— avg · W26———————

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

93

menza.ai— avg · W26———————

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

94

milliray.com— avg · W26———————

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

95

mochacare.com— avg · W26———————

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

96

moda.dev— avg · W26———————

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

97

moritzlegal.com— avg · W26———————

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

98

mousecat.ai— avg · W26———————

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

99

ndea.com— avg · W26———————

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

100

o11.ai— avg · W26———————

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.