Y Combinator Startups

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

187 of 5,218 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 · S27

F26 · 187 sites · ← all sites

187 sites, including 4 parked or gone · show only live sites

#URLThis weekAvg rankTrancoRadarCrUXMajesticUmbrellaChecked

1

herdr.dev75,312 avg · F26▲ 18,18675,31214,058top 5ktop 500k86,909124,969Oct 29

Tranco 14,058Radar top 5kCrUX top 500kMajestic 86,909Umbrella 124,969checked Oct 29

2

melty.gg415,615 avg · F26▲ 202,432415,615415,615top 500k———Oct 29

Tranco 415,615Radar top 500kCrUX —Majestic —Umbrella —checked Oct 29

3

theo.site526,724 avg · F26▲ 12,807526,724526,724————Oct 29

Tranco 526,724Radar —CrUX —Majestic —Umbrella —checked Oct 29

4

oroagents.com608,612 avg · F26▲ 111,618608,612608,612top 200k———Oct 29

Tranco 608,612Radar top 200kCrUX —Majestic —Umbrella —checked Oct 29

5

databuddy.cc617,552 avg · F26▲ 48,563617,552481,761top 200k—909,491461,405Oct 29

Tranco 481,761Radar top 200kCrUX —Majestic 909,491Umbrella 461,405checked Oct 29

6

boat.dev646,926 avg · F26646,926646,926top 200k———Oct 29

Tranco 646,926Radar top 200kCrUX —Majestic —Umbrella —checked Oct 29

7

caveman.so680,830 avg · F26▲ 200,183680,830—top 1M—680,830—Oct 29

Tranco —Radar top 1MCrUX —Majestic 680,830Umbrella —checked Oct 29

8

decent.com726,152 avg · F26▼ 79,473726,152———726,152—Oct 29

Tranco —Radar —CrUX —Majestic 726,152Umbrella —checked Oct 29

9

antimattr.one780,621 avg · F26▲ 21,163780,621————780,621Oct 24

Tranco —Radar —CrUX —Majestic —Umbrella 780,621checked Oct 24

10

agent37.com789,887 avg · F26▼ 102,652789,887947,661top 500k—632,112—Oct 29

Tranco 947,661Radar top 500kCrUX —Majestic 632,112Umbrella —checked Oct 29

11

runinfra.ai903,394 avg · F26▲ 53,087903,394—top 1M—903,394—Oct 29

Tranco —Radar top 1MCrUX —Majestic 903,394Umbrella —checked Oct 29

12

boxes.dev929,319 avg · F26929,319———929,319—Oct 29

Tranco —Radar —CrUX —Majestic 929,319Umbrella —checked Oct 29

13

0.security— avg · F26———————

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

14

acyclic.dev— avg · F26———————

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

15

adside.ai— avg · F26———————

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

16

agentrelay.com— avg · F26———————

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

17

ageospatial.com— avg · F26———————

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

18

aikidotechnologies.com— avg · F26———————

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

19

altair-health.com— avg · F26———————

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

20

antropi.world— avg · F26———————

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

21

anyalpha.ai— avg · F26———————

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

22

appliedkinetics.ai— avg · F26———————

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

23

archangelhealth.ai— avg · F26———————

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

24

archgen.tech— avg · F26———————

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

25

armorerlabs.com— avg · F26———————

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

26

asakana.co— avg · F26———————

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

27

ascenix.co— avg · F26———————

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

28

asim-group.com— avg · F26———————

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

29

aucert.ai— avg · F26———————

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

30

audora.art— avg · F26———————

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

31

aviern.com— avg · F26———————

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

32

axonnic.com— avg · F26———————

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

33

blinka.co— avg · F26———————

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

34

bryel.ai— avg · F26———————

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

35

buildhabu.com— avg · F26———————

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

36

byteask.ai— avg · F26———————

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

37

canos.ai— avg · F26———————

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

38

capveon.ai— avg · F26———————

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

39

cardinalsquare.com— avg · F26———————

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

40

cesara.com— avg · F26———————

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

41

chempilot.ai— avg · F26———————

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

42

claimkit.co— avg · F26———————

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

43

composal.comredirected— avg · F26———————

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

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

44

confetti.build— avg · F26———————

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

45

conus-med.com— avg · F26———————

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

46

covera-agents.com— avg · F26———————

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

47

cyclon.ai— avg · F26———————

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

48

deepmark.me— avg · F26———————

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

49

degla.ai— avg · F26———————

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

50

deployrobotics.co— avg · F26———————

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

51

dreamscalelabs.com— avg · F26———————

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

52

dydema.com— avg · F26———————

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

53

elimentary.com— avg · F26———————

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

54

epsilab.comparked— avg · F26———————

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

55

everyapp.com— avg · F26———————

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

56

evidentmachines.com— avg · F26———————

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

57

faradaycompute.com— avg · F26———————

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

58

fire.co— avg · F26———————

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

59

get-stasis.com— avg · F26———————

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

60

gethesperai.com— avg · F26———————

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

61

getopencrawl.com— avg · F26———————

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

62

gettireswing.com— avg · F26———————

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

63

godhands.ai— avg · F26———————

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

64

graphide.com— avg · F26———————

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

65

graypass.com— avg · F26———————

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

66

grep.ai— avg · F26———————

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

67

halmoslabs.com— avg · F26———————

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

68

hemlock.inc— avg · F26———————

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

69

heygradon.com— avg · F26———————

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

70

hickory.co— avg · F26———————

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

71

hillstar.ai— avg · F26———————

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

72

hiyam.ai— avg · F26———————

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

73

horizontal-tech.com— avg · F26———————

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

74

hue.run— avg · F26———————

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

75

hundred.systems— avg · F26———————

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

76

ignitionbenefits.com— avg · F26———————

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

77

inflection-space.com— avg · F26———————

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

78

invertix.ai— avg · F26———————

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

79

isoquant.ai— avg · F26———————

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

80

joinspine.ai— avg · F26———————

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

81

kailashlabs.com— avg · F26———————

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

82

kairoshealthai.com— avg · F26———————

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

83

kairoxsys.com— avg · F26———————

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

84

keresaero.com— avg · F26———————

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

85

lantern.md— avg · F26———————

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

86

larkagents.com— avg · F26———————

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

87

letter.dev— avg · F26———————

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

88

liquidenergy.world— avg · F26———————

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

89

lokberg.com— avg · F26———————

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

90

luxfoods.xyz— avg · F26———————

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

91

lyon.so— avg · F26———————

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

92

maritime.sh— avg · F26———————

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

93

meetriver.com— avg · F26——top 1Mtop 1M——Oct 29

Tranco —Radar top 1MCrUX top 1MMajestic —Umbrella —checked Oct 29

94

micora.com— avg · F26———————

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

95

mirrors.dev— avg · F26———————

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

96

munito.ai— avg · F26———————

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

97

myhelios.com— avg · F26———————

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

98

native.no— avg · F26———————

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

99

neomatter.com— avg · F26———————

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

100

nitroduck.tech— avg · F26———————

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

101

nodus-compute.ai— avg · F26———————

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

102

nxtcure.com— avg · F26———————

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

103

oasive.ai— avg · F26———————

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

104

obia.io— avg · F26———————

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

105

obsessiondb.com— avg · F26———————

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

106

odin-robotics.com— avg · F26———————

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

107

openactuation.com— avg · F26———————

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

108

openhack.com— avg · F26———————

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

109

operatechnologies.com— avg · F26———————

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

110

orcaaerospace.com— avg · F26———————

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

111

orgo.ai— avg · F26———————

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

112

papaya.fyi— avg · F26———————

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

113

particularity.io— avg · F26———————

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

114

perit.ai— avg · F26———————

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

115

petrichorbio.com— avg · F26———————

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

116

phone-harness.com— avg · F26———————

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

117

plek.ai— avg · F26———————

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

118

ploid.com— avg · F26———————

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

119

pomerado.ai— avg · F26———————

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

120

preload.ai— avg · F26———————

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

121

primordiant.com— avg · F26———————

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

122

quippyapp.com— avg · F26———————

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

123

quivly.ai— avg · F26———————

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

124

ratlog.spacegone— avg · F26———————

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

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

125

reconero.com— avg · F26———————

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

126

redoubt.insure— avg · F26———————

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

127

resineda.com— avg · F26———————

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

128

rhem.ai— avg · F26———————

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

129

rodeorobotics.com— avg · F26———————

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

130

roma.app— avg · F26———————

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

131

routerplus.com— avg · F26———————

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

132

runlatent.ai— avg · F26———————

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

133

runpraxis.ai— avg · F26———————

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

134

runtime.si— avg · F26———————

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

135

rystic.ai— avg · F26———————

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

136

saccade.health— avg · F26———————

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

137

sentient-os.ai— avg · F26———————

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

138

shepherdrobotics.ai— avg · F26———————

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

139

shireintelligence.com— avg · F26———————

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

140

silicamachines.com— avg · F26———————

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

141

simantic.com— avg · F26———————

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

142

simulithic.com— avg · F26———————

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

143

sintem.co— avg · F26———————

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

144

sinter.systems— avg · F26———————

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

145

sintropix.com— avg · F26———————

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

146

sona8.com— avg · F26———————

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

147

spacesheep.dev— avg · F26———————

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

148

spm.fun— avg · F26———————

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

149

stacktrace.ai— avg · F26———————

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

150

streamlinesystems.ltd— avg · F26———————

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

151

subvocal.company— avg · F26———————

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

152

superserve.ai— avg · F26———————

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

153

sutrix.ai— avg · F26———————

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

154

synaraops.com— avg · F26———————

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

155

talos-us.com— avg · F26———————

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

156

telamont.com— avg · F26———————

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

157

theagenticdatacompany.com— avg · F26———————

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

158

thecompany.company— avg · F26———————

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

159

theseus.bot— avg · F26———————

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

160

tilion.com— avg · F26———————

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

Oct 29 06:03sync with the YC sync, 12 sites changed

Oct 28 06:03sync with the YC sync, 10 sites changed

Oct 27 06:03sync with the YC sync, 13 sites changed

Oct 26 06:02sync with the YC sync, 3 sites changed

Oct 25 06:03sync with the YC sync, 5 sites changed

Oct 24 06:03sync with the YC sync, 6 sites changed

Oct 23 06:03sync with the YC sync, 11 sites shown

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