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

P25 · P26

W26 · 194 sites · ← all sites

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

#URLThis weekAvg rankTrancoRadarCrUXMajesticUmbrellaChecked

arcprize.org104,144 avg · W26▲ 985104,144161,989top 1Mtop 1M46,298—Jul 31

Tranco 161,989Radar top 1MCrUX top 1MMajestic 46,298Umbrella —checked Jul 31

luel.ai193,603 avg · W26▲ 864193,603141,905top 200ktop 100k—245,300Jul 31

Tranco 141,905Radar top 200kCrUX top 100kMajestic —Umbrella 245,300checked Jul 31

shortkit.dev208,199 avg · W26▲ 16,744208,199208,199top 500k———Jul 31

Tranco 208,199Radar top 500kCrUX —Majestic —Umbrella —checked Jul 31

didit.me250,182 avg · W26▼ 770250,182147,639top 100ktop 1M399,363203,543Jul 31

Tranco 147,639Radar top 100kCrUX top 1MMajestic 399,363Umbrella 203,543checked Jul 31

heypocket.com261,841 avg · W26▲ 8,549261,841249,065top 200ktop 500k—274,616Jul 31

Tranco 249,065Radar top 200kCrUX top 500kMajestic —Umbrella 274,616checked Jul 31

21st.dev284,264 avg · W26▲ 5,003284,26471,668top 50ktop 100k348,560432,563Jul 31

Tranco 71,668Radar top 50kCrUX top 100kMajestic 348,560Umbrella 432,563checked Jul 31

paxhistoria.co369,492 avg · W26▼ 7,060369,49243,187top 50ktop 50k—695,796Jul 31

Tranco 43,187Radar top 50kCrUX top 50kMajestic —Umbrella 695,796checked Jul 31

mendral.com577,951 avg · W26▲ 2,189577,951—top 1M—577,951—Jul 31

Tranco —Radar top 1MCrUX —Majestic 577,951Umbrella —checked Jul 31

openspec.dev612,853 avg · W26▲ 33,631612,853373,401top 200k—931,185533,974Jul 31

Tranco 373,401Radar top 200kCrUX —Majestic 931,185Umbrella 533,974checked Jul 31

gru.space846,297 avg · W26▼ 75,231846,297———846,297—Jul 31

Tranco —Radar —CrUX —Majestic 846,297Umbrella —checked Jul 31

oximy.com884,372 avg · W26▲ 53,745884,372884,372top 500k———Jul 31

Tranco 884,372Radar top 500kCrUX —Majestic —Umbrella —checked Jul 31

10xscience.com— avg · W26———————

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

aemon.ai— avg · W26———————

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

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

alt-x.co— 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

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

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———————

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

bubblelab.ai— avg · W26———————

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

buildwithglue.com— 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

caretta.so— avg · W26———————

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

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

emdash.ai— 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———————

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

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

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

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

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

ndea.com— avg · W26———————

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

100

o11.ai— avg · W26———————

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

101

onerobot.io— avg · W26———————

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

102

opalitehealth.com— avg · W26———————

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

103

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

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

104

origin.bio— avg · W26———————

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

105

orthogonal.com— avg · W26———————

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

106

ossus.com— avg · W26———————

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

107

overdrive.health— avg · W26———————

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

108

overshoot.ai— avg · W26———————

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

109

oxus-ai.com— avg · W26———————

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

110

palus.finance— avg · W26———————

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

111

pantainsure.com— avg · W26———————

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

112

parameter.ai— avg · W26———————

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

113

patientdesk.ai— 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———Jul 31

Tranco —Radar top 1MCrUX —Majestic —Umbrella —checked Jul 31

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

pollinate.tech— avg · W26———————

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

120

polymathlabs.ai— avg · W26———————

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

121

pranadoc.com— avg · W26———————

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

122

protent.ai— avg · W26———————

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

123

proximitty.ai— 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———————

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

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

runcaptain.com— avg · W26———————

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

137

runcascade.com— avg · W26———————

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

138

samora.ai— avg · W26———————

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

139

schedulingwiz.com— avg · W26———————

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

140

seeing-systems.com— avg · W26———————

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

141

sentrial.com— avg · W26———————

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

142

sequencemkts.com— avg · W26———————

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

143

servo7.com— avg · W26———————

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

144

shofo.ai— avg · W26———————

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

145

silahq.com— avg · W26———————

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

146

sitefire.ai— avg · W26———————

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

147

skillsync.com— avg · W26———————

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

148

sparkles.dev— avg · W26———————

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

149

spotpay.ai— avg · W26———————

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

150

squid.energy— avg · W26———————

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

151

stilta.com— avg · W26———————

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

152

strandai.com— avg · W26———————

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

153

supafax.com— avg · W26———————

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

154

superpenguin.ai— avg · W26———————

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

155

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

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

156

syntropy.io— avg · W26———————

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

157

talkingcomputers.ai— avg · W26———————

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

158

tepali.com— avg · W26———————

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

159

terminaluse.com— avg · W26———————

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

160

terranox.ai— avg · W26———————

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

161

thetokencompany.com— avg · W26———————

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

162

traverse.so— avg · W26———————

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

163

travoai.com— avg · W26———————

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

164

tryasimov.ai— avg · W26———————

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

165

trycardinal.com— avg · W26———————

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

166

trymaven.com— avg · W26———————

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

167

tryoctapulse.com— avg · W26———————

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

168

tryrobby.com— avg · W26———————

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

169

tryvela.ai— avg · W26———————

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

170

unifold.io— avg · W26———————

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

171

unisson.ai— avg · W26———————

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

172

usebidflow.com— avg · W26———————

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

173

usecardboard.com— avg · W26———————

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

174

usechamber.io— avg · W26———————

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

175

usecrow.ai— avg · W26———————

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

176

usegrade.com— avg · W26———————

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

177

usepolymorph.com— avg · W26———————

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

178

usereframe.ai— avg · W26———————

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

179

usesalus.ai— avg · W26———————

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

180

valence.trade— avg · W26———————

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

181

valgo.ai— avg · W26———————

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

182

vectorlegal.com— avg · W26———————

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

183

velum-labs.com— avg · W26———————

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

184

ventura.ai— avg · W26———————

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

185

verdexai.com— avg · W26———————

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

186

visiblsemi.com— avg · W26———————

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

187

voltairlabs.com— avg · W26———————

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

188

voxelenergy.com— avg · W26———————

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

189

voygr.tech— avg · W26———————

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

190

wayco.ai— avg · W26———————

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

191

wideframe.com— avg · W26———————

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

192

zatanna.ai— avg · W26———————

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

193

zerosettle.io— avg · W26———————

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

194

zymbly.com— 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 31 06:03sync with the YC sync, 7 sites changed

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, 6 sites shown

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