Y Combinator Startups

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

163 of 5,116 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

S20 · 163 sites · ← all sites

163 sites, including 18 parked or gone · show only live sites

#URLThis weekAvg rankTrancoRadarCrUXMajesticUmbrellaChecked

supabase.com29,667 avg · S20▼ 30829,6675,152top 5ktop 10k4,68179,169Sep 14

Tranco 5,152Radar top 5kCrUX top 10kMajestic 4,681Umbrella 79,169checked Sep 14

webapp.io40,408 avg · S20, acquired▼ 1,09540,40840,408top 1M———Sep 14

Tranco 40,408Radar top 1MCrUX —Majestic —Umbrella —checked Sep 14

photoroom.com50,822 avg · S20▲ 27550,8229,236top 10ktop 10k14,955128,274Sep 14

Tranco 9,236Radar top 10kCrUX top 10kMajestic 14,955Umbrella 128,274checked Sep 14

roboflow.com78,218 avg · S20▲ 1,01678,21826,231top 20ktop 500k26,100182,324Sep 14

Tranco 26,231Radar top 20kCrUX top 500kMajestic 26,100Umbrella 182,324checked Sep 14

hypotenuse.ai92,202 avg · S20▼ 792,202133,129top 200k—51,274—Sep 14

Tranco 133,129Radar top 200kCrUX —Majestic 51,274Umbrella —checked Sep 14

momence.com92,383 avg · S20, acquired▲ 4,14092,38331,631top 50ktop 50k40,369205,148Sep 14

Tranco 31,631Radar top 50kCrUX top 50kMajestic 40,369Umbrella 205,148checked Sep 14

blissway.com100,922 avg · S20▼ 12,723100,922100,922top 1M———Sep 14

Tranco 100,922Radar top 1MCrUX —Majestic —Umbrella —checked Sep 14

laylo.com118,169 avg · S20▲ 2,009118,16964,367top 200ktop 500k47,237242,904Sep 14

Tranco 64,367Radar top 200kCrUX top 500kMajestic 47,237Umbrella 242,904checked Sep 14

fig.io181,799 avg · S20, acquired▲ 356181,799268,239top 1M—95,359—Sep 14

Tranco 268,239Radar top 1MCrUX —Majestic 95,359Umbrella —checked Sep 14

skio.com196,401 avg · S20, acquired▲ 6,083196,40138,070top 50k—484,44866,684Sep 14

Tranco 38,070Radar top 50kCrUX —Majestic 484,448Umbrella 66,684checked Sep 14

jemi.so201,749 avg · S20, acquired▼ 1,602201,749317,193——86,305—Sep 14

Tranco 317,193Radar —CrUX —Majestic 86,305Umbrella —checked Sep 14

memberstack.com216,248 avg · S20▲ 5,390216,248122,926top 100k—214,748311,070Sep 14

Tranco 122,926Radar top 100kCrUX —Majestic 214,748Umbrella 311,070checked Sep 14

tella.com219,155 avg · S20▲ 9,122219,155181,544top 200k—256,765—Sep 14

Tranco 181,544Radar top 200kCrUX —Majestic 256,765Umbrella —checked Sep 14

pave.com224,826 avg · S20▲ 6,289224,826248,277top 500k—201,374—Sep 14

Tranco 248,277Radar top 500kCrUX —Majestic 201,374Umbrella —checked Sep 14

safebase.ioredirected247,267 avg · S20, acquired▼ 4,961247,26775,444top 50k—415,365250,992Sep 14

Tranco 75,444Radar top 50kCrUX —Majestic 415,365Umbrella 250,992checked Sep 14

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

hub.la258,379 avg · S20▲ 1,848258,379111,049top 100ktop 1M272,758391,331Sep 14

Tranco 111,049Radar top 100kCrUX top 1MMajestic 272,758Umbrella 391,331checked Sep 14

jitsu.com270,726 avg · S20, acquired▲ 20,436270,72618,717top 10k—763,84229,618Sep 14

Tranco 18,717Radar top 10kCrUX —Majestic 763,842Umbrella 29,618checked Sep 14

getjusto.com282,885 avg · S20▲ 34,205282,885137,560top 100k—220,600490,496Sep 14

Tranco 137,560Radar top 100kCrUX —Majestic 220,600Umbrella 490,496checked Sep 14

questdb.com295,714 avg · S20▼ 3,319295,714458,991top 1M—132,437—Sep 14

Tranco 458,991Radar top 1MCrUX —Majestic 132,437Umbrella —checked Sep 14

depict.ai321,369 avg · S20▼ 10,518321,36962,531top 20k—801,257100,320Sep 14

Tranco 62,531Radar top 20kCrUX —Majestic 801,257Umbrella 100,320checked Sep 14

akiflow.com328,535 avg · S20▲ 37,052328,535135,036top 100k—154,900695,669Sep 14

Tranco 135,036Radar top 100kCrUX —Majestic 154,900Umbrella 695,669checked Sep 14

hotplate.com330,349 avg · S20▼ 18,856330,349190,434top 500ktop 500k194,029606,584Sep 14

Tranco 190,434Radar top 500kCrUX top 500kMajestic 194,029Umbrella 606,584checked Sep 14

warmly.ai331,549 avg · S20, acquired▼ 1,720331,549509,237top 1M—153,860—Sep 14

Tranco 509,237Radar top 1MCrUX —Majestic 153,860Umbrella —checked Sep 14

siphoxhealth.com337,436 avg · S20▼ 2,050337,436272,947top 500ktop 1M401,924—Sep 14

Tranco 272,947Radar top 500kCrUX top 1MMajestic 401,924Umbrella —checked Sep 14

scrimba.com338,140 avg · S20▲ 18,639338,140147,532top 200ktop 500k64,897801,990Sep 14

Tranco 147,532Radar top 200kCrUX top 500kMajestic 64,897Umbrella 801,990checked Sep 14

decentro.tech346,787 avg · S20▲ 32,136346,787329,160top 1M—364,414—Sep 14

Tranco 329,160Radar top 1MCrUX —Majestic 364,414Umbrella —checked Sep 14

withyotta.com349,412 avg · S20▲ 6,968349,412380,677top 500k—318,147—Sep 14

Tranco 380,677Radar top 500kCrUX —Majestic 318,147Umbrella —checked Sep 14

panadata.net351,072 avg · S20▲ 69,858351,072156,686top 50ktop 1M658,144238,386Sep 14

Tranco 156,686Radar top 50kCrUX top 1MMajestic 658,144Umbrella 238,386checked Sep 14

atob.com352,050 avg · S20▲ 13,033352,050324,795top 1M—379,305—Sep 14

Tranco 324,795Radar top 1MCrUX —Majestic 379,305Umbrella —checked Sep 14

supertokens.com358,538 avg · S20▲ 22,757358,538500,461top 1M—216,614—Sep 14

Tranco 500,461Radar top 1MCrUX —Majestic 216,614Umbrella —checked Sep 14

thndr.app363,571 avg · S20▲ 2,129363,571251,452top 500ktop 1M504,909334,351Sep 14

Tranco 251,452Radar top 500kCrUX top 1MMajestic 504,909Umbrella 334,351checked Sep 14

ziphq.comredirected368,526 avg · S20▲ 14,437368,526238,251top 200k—217,947649,381Sep 14

Tranco 238,251Radar top 200kCrUX —Majestic 217,947Umbrella 649,381checked Sep 14

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

keydb.dev372,977 avg · S20, acquired▼ 8,908372,977309,614——436,339—Sep 14

Tranco 309,614Radar —CrUX —Majestic 436,339Umbrella —checked Sep 14

doola.com373,218 avg · S20▲ 29,444373,218242,488top 200ktop 1M116,848760,317Sep 14

Tranco 242,488Radar top 200kCrUX top 1MMajestic 116,848Umbrella 760,317checked Sep 14

dataland.io376,027 avg · S20▲ 54,577376,027326,953top 500k——425,100Sep 14

Tranco 326,953Radar top 500kCrUX —Majestic —Umbrella 425,100checked Sep 14

finmark.comredirected376,306 avg · S20, acquired▼ 1,544376,306———376,306—Sep 14

Tranco —Radar —CrUX —Majestic 376,306Umbrella —checked Sep 14

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

taktile.com382,469 avg · S20▲ 7,604382,469429,713top 500k—335,225—Sep 14

Tranco 429,713Radar top 500kCrUX —Majestic 335,225Umbrella —checked Sep 14

notabene.id392,715 avg · S20▲ 255392,715588,353top 1M—197,076—Sep 14

Tranco 588,353Radar top 1MCrUX —Majestic 197,076Umbrella —checked Sep 14

arketa.com405,202 avg · S20▼ 10,500405,202330,417top 1M—479,986—Sep 14

Tranco 330,417Radar top 1MCrUX —Majestic 479,986Umbrella —checked Sep 14

orangehealth.in405,919 avg · S20▼ 4,699405,919380,487top 500ktop 500k431,351—Sep 14

Tranco 380,487Radar top 500kCrUX top 500kMajestic 431,351Umbrella —checked Sep 14

tryjeeves.com409,643 avg · S20▲ 4,140409,643415,798top 1Mtop 500k403,487—Sep 14

Tranco 415,798Radar top 1MCrUX top 500kMajestic 403,487Umbrella —checked Sep 14

fieldguide.com417,081 avg · S20▲ 66,903417,081———417,081—Sep 14

Tranco —Radar —CrUX —Majestic 417,081Umbrella —checked Sep 14

zuddl.com417,805 avg · S20▲ 30,393417,805219,811top 500k—374,845658,760Sep 14

Tranco 219,811Radar top 500kCrUX —Majestic 374,845Umbrella 658,760checked Sep 14

osmind.org423,738 avg · S20▲ 9,368423,738265,452top 500k—582,023—Sep 14

Tranco 265,452Radar top 500kCrUX —Majestic 582,023Umbrella —checked Sep 14

soyhenry.com434,777 avg · S20▼ 6,786434,777342,292—top 500k527,261—Sep 14

Tranco 342,292Radar —CrUX top 500kMajestic 527,261Umbrella —checked Sep 14

lightdash.com435,692 avg · S20▲ 19,237435,692———435,692—Sep 14

Tranco —Radar —CrUX —Majestic 435,692Umbrella —checked Sep 14

arist.coredirected453,156 avg · S20▼ 13,895453,156———453,156—Sep 14

Tranco —Radar —CrUX —Majestic 453,156Umbrella —checked Sep 14

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

infeedo.ai470,386 avg · S20▼ 23,155470,386———470,386—Sep 14

Tranco —Radar —CrUX —Majestic 470,386Umbrella —checked Sep 14

humanloop.com471,532 avg · S20, acquired▲ 9,139471,532738,339——204,725—Sep 14

Tranco 738,339Radar —CrUX —Majestic 204,725Umbrella —checked Sep 14

carbonchain.com478,660 avg · S20▼ 13,213478,660———478,660—Sep 14

Tranco —Radar —CrUX —Majestic 478,660Umbrella —checked Sep 14

contasimples.com478,692 avg · S20▼ 4,810478,692452,623top 500ktop 1M504,761—Sep 14

Tranco 452,623Radar top 500kCrUX top 1MMajestic 504,761Umbrella —checked Sep 14

powerus.de479,585 avg · S20▼ 23,483479,585479,585top 500k———Sep 14

Tranco 479,585Radar top 500kCrUX —Majestic —Umbrella —checked Sep 14

stackerhq.comredirected484,730 avg · S20▼ 17,166484,730580,384top 1M—389,076—Sep 14

Tranco 580,384Radar top 1MCrUX —Majestic 389,076Umbrella —checked Sep 14

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

dripos.com505,192 avg · S20▲ 22,963505,192357,820top 500k—652,564—Sep 14

Tranco 357,820Radar top 500kCrUX —Majestic 652,564Umbrella —checked Sep 14

swif.ai511,197 avg · S20▲ 28,926511,197858,776——163,618—Sep 14

Tranco 858,776Radar —CrUX —Majestic 163,618Umbrella —checked Sep 14

mailwarm.com520,079 avg · S20▲ 38,570520,079———520,079—Sep 14

Tranco —Radar —CrUX —Majestic 520,079Umbrella —checked Sep 14

cohere.io549,096 avg · S20, acquired▼ 25,652549,096———549,096—Sep 14

Tranco —Radar —CrUX —Majestic 549,096Umbrella —checked Sep 14

porter.run551,827 avg · S20▲ 62,617551,827—top 1M—551,827—Sep 14

Tranco —Radar top 1MCrUX —Majestic 551,827Umbrella —checked Sep 14

reflect.run580,045 avg · S20, acquired▲ 9,933580,045691,578top 1M—468,511—Sep 14

Tranco 691,578Radar top 1MCrUX —Majestic 468,511Umbrella —checked Sep 14

tryfinch.com581,867 avg · S20▲ 1,774581,867699,265top 1M—464,468—Sep 14

Tranco 699,265Radar top 1MCrUX —Majestic 464,468Umbrella —checked Sep 14

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.