Y Combinator Startups

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

191 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

P25 · P26

W26 · 191 sites · ← all sites

191 live · 3 parked or gone — show all

#URLThis weekAvg rankTrancoRadarCrUXMajesticUmbrellaChecked

arcprize.org83,396 avg · W26▲ 4,66383,396135,492top 500ktop 1M31,299—Sep 14

Tranco 135,492Radar top 500kCrUX top 1MMajestic 31,299Umbrella —checked Sep 14

shortkit.dev229,756 avg · W26▲ 13,604229,756229,756top 500k———Sep 14

Tranco 229,756Radar top 500kCrUX —Majestic —Umbrella —checked Sep 14

21st.dev251,359 avg · W26▼ 8,484251,35960,617top 50ktop 100k240,342453,119Sep 14

Tranco 60,617Radar top 50kCrUX top 100kMajestic 240,342Umbrella 453,119checked Sep 14

didit.me264,474 avg · W26▲ 13,432264,474145,664top 100ktop 500k287,739360,020Sep 14

Tranco 145,664Radar top 100kCrUX top 500kMajestic 287,739Umbrella 360,020checked Sep 14

heypocket.com522,089 avg · W26▲ 23,319522,089209,796top 500ktop 100k826,404530,067Sep 14

Tranco 209,796Radar top 500kCrUX top 100kMajestic 826,404Umbrella 530,067checked Sep 14

paxhistoria.co526,131 avg · W26▼ 2,488526,13142,162top 50ktop 50k975,076561,155Sep 14

Tranco 42,162Radar top 50kCrUX top 50kMajestic 975,076Umbrella 561,155checked Sep 14

openspec.dev587,134 avg · W26▲ 47,981587,134296,634top 200k—585,670879,097Sep 14

Tranco 296,634Radar top 200kCrUX —Majestic 585,670Umbrella 879,097checked Sep 14

luel.ai640,820 avg · W26▼ 152,914640,820640,820—top 500k——Sep 14

Tranco 640,820Radar —CrUX top 500kMajestic —Umbrella —checked Sep 14

emdash.com827,294 avg · W26▲ 130,161827,294———827,294—Sep 14

Tranco —Radar —CrUX —Majestic 827,294Umbrella —checked Sep 14

gru.space854,877 avg · W26▲ 13,092854,877———854,877—Sep 14

Tranco —Radar —CrUX —Majestic 854,877Umbrella —checked Sep 14

oximy.com891,049 avg · W26▲ 46,364891,049891,049top 500k———Sep 14

Tranco 891,049Radar top 500kCrUX —Majestic —Umbrella —checked Sep 14

patientdesk.ai903,421 avg · W26903,421————903,421Sep 6

Tranco —Radar —CrUX —Majestic —Umbrella 903,421checked Sep 6

parameter.ai978,967 avg · W26978,967————978,967Aug 11

Tranco —Radar —CrUX —Majestic —Umbrella 978,967checked Aug 11

10xscience.com— avg · W26———————

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

aemon.ai— avg · W26———————

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

alt-x.co— avg · W26———————

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

anchorhead.ai— avg · W26———————

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

approxima.ai— avg · W26———————

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

ashr.io— avg · W26———————

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

aurorincad.com— avg · W26———————

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

autositu.com— avg · W26———————

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

autumn.ai— avg · W26———————

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

avoice.co— avg · W26———————

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

axionorbital.space— avg · W26———————

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

axisanalysis.com— avg · W26———————

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

baseframe.co— avg · W26———————

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

beaconhealth.ai— avg · W26———————

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

beesafe.ai— avg · W26———————

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

beyondreachlabs.com— avg · W26———————

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

bookoapp.com— avg · W26——top 1M———Sep 14

Tranco —Radar top 1MCrUX —Majestic —Umbrella —checked Sep 14

bubblelab.ai— avg · W26———————

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

burthq.com— avg · W26———————

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

buttoncomputer.com— avg · W26———————

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

byteport.com— avg · W26———————

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

caj.al— avg · W26———————

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

captain.dev— avg · W26———————

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

caretta.so— avg · W26——top 500k———Aug 23

Tranco —Radar top 500kCrUX —Majestic —Umbrella —checked Aug 23

catchbackcards.com— avg · W26———————

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

celltype.com— avg · W26———————

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

chasi.ai— avg · W26———————

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

claimglide.com— avg · W26———————

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

codewisp.ai— avg · W26———————

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

cofia.ai— avg · W26———————

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

compresr.ai— avg · W26———————

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

condor.energy— avg · W26———————

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

confluence.sh— avg · W26———————

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

congruent.io— avg · W26———————

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

constellation.space— avg · W26———————

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

copperlane.ai— avg · W26———————

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

corelayer.com— avg · W26———————

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

corvera.ai— avg · W26———————

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

crosslayerlabs.com— avg · W26———————

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

cumuluslabs.io— avg · W26———————

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

daivin.tech— avg · W26———————

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

dev.fast— avg · W26———————

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

dittobio.com— avg · W26———————

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

docurahealth.com— avg · W26———————

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

doomersion.com— avg · W26———————

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

eigenpal.com— avg · W26———————

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

endclose.com— avg · W26———————

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

envariant.ai— avg · W26———————

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

fed10.ai— avg · W26———————

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

fenrock.ai— avg · W26———————

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

fern.bot— avg · W26———————

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

fixture.app— avg · W26——top 1M———Aug 23

Tranco —Radar top 1MCrUX —Majestic —Umbrella —checked Aug 23

foreman.co— avg · W26———————

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

fort.cx— avg · W26———————

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

forum.market— avg · W26———————

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

fullseam.com— avg · W26———————

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

general.legal— avg · W26———————

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

generalastro.com— avg · W26———————

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

getbalance.ai— avg · W26———————

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

haladir.com— avg · W26———————

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

helloeos.ai— avg · W26———————

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

hlaboratories.com— avg · W26———————

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

humanarchive.ai— avg · W26———————

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

incidentfox.ai— avg · W26———————

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

instinct.xyz— avg · W26———————

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

inventoryquant.com— avg · W26———————

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

inviscidai.com— avg · W26———————

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

jinba.io— avg · W26———————

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

khotan.com— avg · W26———————

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

kita.ai— avg · W26———————

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

klausai.com— avg · W26———————

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

lance.live— avg · W26———————

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

laurence.com— avg · W26———————

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

legalos.ai— avg · W26———————

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

lexius.ai— avg · W26———————

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

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

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

mangomedical.io— avg · W26———————

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

mantisbiotech.com— avg · W26———————

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

martini.film— avg · W26———————

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

meetmirabelle.com— avg · W26———————

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

menza.ai— avg · W26———————

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

milliray.com— avg · W26———————

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

mochacare.com— avg · W26———————

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

moda.dev— avg · W26———————

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

moritzlegal.com— avg · W26———————

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

mousecat.ai— avg · W26———————

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

100

myturnstone.ai— avg · W26———————

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

101

ndea.com— avg · W26———————

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

102

o11.ai— avg · W26———————

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

103

onerobot.io— avg · W26———————

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

104

opalitehealth.com— avg · W26———————

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

105

origami-robotics.com— avg · W26———————

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

106

origin.bio— avg · W26———————

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

107

orthogonal.com— avg · W26——top 1M———Sep 13

Tranco —Radar top 1MCrUX —Majestic —Umbrella —checked Sep 13

108

ossus.com— avg · W26———————

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

109

overdrive.health— avg · W26———————

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

110

overshoot.ai— avg · W26———————

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

111

oxus-ai.com— avg · W26———————

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

112

palus.finance— avg · W26———————

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

113

pantainsure.com— avg · W26———————

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

114

payna.com— avg · W26———————

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

115

paysponge.com— avg · W26——top 1M———Aug 2

Tranco —Radar top 1MCrUX —Majestic —Umbrella —checked Aug 2

116

perfectly.so— avg · W26———————

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

117

pirislabs.io— avg · W26———————

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

118

pollen.cx— avg · W26———————

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

119

polymathlabs.ai— avg · W26———————

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

120

pranadoc.com— avg · W26———————

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

121

protent.ai— avg · W26———————

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

122

proximitty.ai— avg · W26———————

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

123

quotientlabs.com— avg · W26———————

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

124

ramain.ai— avg · W26———————

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

125

remix.re— avg · W26———————

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

126

ressl.ai— avg · W26———————

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

127

returnsignals.com— avg · W26——top 1M———Sep 6

Tranco —Radar top 1MCrUX —Majestic —Umbrella —checked Sep 6

128

rev1.so— avg · W26———————

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

129

revion.inc— avg · W26———————

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

130

rhizomeai.com— avg · W26———————

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

131

ritivel.com— avg · W26———————

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

132

robodock.tech— avg · W26———————

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

133

rumacare.com— avg · W26———————

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

134

runanywhere.ai— avg · W26———————

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

135

runcanary.ai— avg · W26———————

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

136

runcascade.com— avg · W26———————

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

137

samora.ai— avg · W26———————

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

138

schedulingwiz.com— avg · W26———————

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

139

seeing-systems.com— avg · W26———————

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

140

sentrial.com— avg · W26———————

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

141

sequencemkts.com— avg · W26———————

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

142

servo7.com— avg · W26———————

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

143

shofo.ai— avg · W26———————

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

144

silahq.com— avg · W26——top 1M———Sep 14

Tranco —Radar top 1MCrUX —Majestic —Umbrella —checked Sep 14

145

sitefire.ai— avg · W26———————

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

146

skillsync.com— avg · W26———————

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

147

sparkles.dev— avg · W26———————

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

148

spotpay.ai— avg · W26———————

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

149

squid.energy— avg · W26———————

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

150

stilta.com— avg · W26———————

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

151

strandai.com— avg · W26———————

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

152

superpenguin.ai— avg · W26———————

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

153

syntheticsciences.ai— avg · W26———————

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

154

talkingcomputers.ai— avg · W26———————

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

155

tepali.com— avg · W26———————

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

156

terminaluse.com— avg · W26———————

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

157

terranox.ai— avg · W26———————

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

158

thetokencompany.com— avg · W26———————

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

159

traverse.so— avg · W26———————

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

160

travoai.com— avg · W26———————

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

161

tryasimov.ai— avg · W26———————

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

162

trycardinal.com— avg · W26———————

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

163

trymaven.com— avg · W26———————

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

164

tryoctapulse.com— avg · W26———————

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

165

tryremy.ai— avg · W26———————

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

166

tryrobby.com— avg · W26———————

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

167

tryvela.ai— avg · W26———————

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

168

unifold.io— avg · W26———————

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

169

unisson.ai— avg · W26———————

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

170

usebidflow.com— avg · W26———————

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

171

usechamber.io— avg · W26———————

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

172

usegrade.com— avg · W26———————

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

173

usepolymorph.com— avg · W26———————

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

174

usereframe.ai— avg · W26———————

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

175

usesalus.ai— avg · W26———————

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

176

valence.trade— avg · W26———————

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

177

valgo.ai— avg · W26———————

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

178

vectorlegal.com— avg · W26———————

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

179

velum-labs.com— avg · W26———————

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

180

ventura.ai— avg · W26———————

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

show 20 more

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.