Y Combinator Startups

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

163 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

P25 · P26

S20 · 163 sites · ← all sites

163 sites, including 20 parked or gone · show only live sites

#URLThis weekAvg rankTrancoRadarCrUXMajesticUmbrellaChecked

supabase.com27,221 avg · S20▲ 18027,2214,912top 5ktop 10k4,31372,437Oct 29

Tranco 4,912Radar top 5kCrUX top 10kMajestic 4,313Umbrella 72,437checked Oct 29

webapp.io47,698 avg · S20, acquired▼ 8,87347,69847,698————Oct 29

Tranco 47,698Radar —CrUX —Majestic —Umbrella —checked Oct 29

photoroom.com52,496 avg · S20▲ 2,32252,4969,110top 10ktop 10k13,833134,545Oct 29

Tranco 9,110Radar top 10kCrUX top 10kMajestic 13,833Umbrella 134,545checked Oct 29

momence.com78,855 avg · S20, acquired▲ 21278,85527,635top 50ktop 50k38,345170,585Oct 29

Tranco 27,635Radar top 50kCrUX top 50kMajestic 38,345Umbrella 170,585checked Oct 29

roboflow.com83,894 avg · S20▲ 5,04983,89427,754top 20ktop 500k24,019199,909Oct 29

Tranco 27,754Radar top 20kCrUX top 500kMajestic 24,019Umbrella 199,909checked Oct 29

laylo.com89,926 avg · S20▼ 2,21289,92664,397top 100ktop 500k39,220166,161Oct 29

Tranco 64,397Radar top 100kCrUX top 500kMajestic 39,220Umbrella 166,161checked Oct 29

hypotenuse.ai110,977 avg · S20▲ 8,875110,977167,030top 200k—54,924—Oct 29

Tranco 167,030Radar top 200kCrUX —Majestic 54,924Umbrella —checked Oct 29

rally.video117,413 avg · S20▲ 619,451117,413———117,413—Oct 29

Tranco —Radar —CrUX —Majestic 117,413Umbrella —checked Oct 29

doola.com159,423 avg · S20▼ 10,285159,423192,399top 200ktop 1M126,447—Oct 29

Tranco 192,399Radar top 200kCrUX top 1MMajestic 126,447Umbrella —checked Oct 29

memberstack.com170,187 avg · S20▲ 36,009170,187107,708top 100k—208,574194,279Oct 29

Tranco 107,708Radar top 100kCrUX —Majestic 208,574Umbrella 194,279checked Oct 29

skio.com172,839 avg · S20, acquired▲ 50,302172,83939,772top 50k—410,07168,674Oct 29

Tranco 39,772Radar top 50kCrUX —Majestic 410,071Umbrella 68,674checked Oct 29

safebase.ioredirected184,418 avg · S20, acquired▲ 12,021184,41862,753top 20k—362,818127,683Oct 29

Tranco 62,753Radar top 20kCrUX —Majestic 362,818Umbrella 127,683checked Oct 29

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

fig.io187,339 avg · S20, acquired▲ 20,936187,339279,020top 1M—95,658—Oct 29

Tranco 279,020Radar top 1MCrUX —Majestic 95,658Umbrella —checked Oct 29

tella.com188,956 avg · S20▲ 10,355188,956140,346top 200ktop 1M237,566—Oct 29

Tranco 140,346Radar top 200kCrUX top 1MMajestic 237,566Umbrella —checked Oct 29

jitsu.com190,031 avg · S20, acquired▲ 43,873190,03117,184top 10k—519,30733,602Oct 29

Tranco 17,184Radar top 10kCrUX —Majestic 519,307Umbrella 33,602checked Oct 29

panadata.net206,631 avg · S20▲ 106,135206,631142,359top 50ktop 1M—270,902Oct 29

Tranco 142,359Radar top 50kCrUX top 1MMajestic —Umbrella 270,902checked Oct 29

jemi.so227,806 avg · S20, acquired▲ 556227,806338,991——116,620—Oct 29

Tranco 338,991Radar —CrUX —Majestic 116,620Umbrella —checked Oct 29

ziphq.comredirected254,186 avg · S20▲ 9,650254,186244,157top 200k—268,804249,596Oct 29

Tranco 244,157Radar top 200kCrUX —Majestic 268,804Umbrella 249,596checked Oct 29

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

depict.ai262,327 avg · S20▲ 48,580262,32760,739top 50k—601,067125,175Oct 29

Tranco 60,739Radar top 50kCrUX —Majestic 601,067Umbrella 125,175checked Oct 29

hub.la268,770 avg · S20▼ 19,879268,770107,633top 100ktop 1M333,112365,564Oct 29

Tranco 107,633Radar top 100kCrUX top 1MMajestic 333,112Umbrella 365,564checked Oct 29

questdb.com276,990 avg · S20▲ 6,111276,990436,628——117,352—Oct 29

Tranco 436,628Radar —CrUX —Majestic 117,352Umbrella —checked Oct 29

supertokens.com289,948 avg · S20▲ 35,746289,948378,459top 1M—201,436—Oct 29

Tranco 378,459Radar top 1MCrUX —Majestic 201,436Umbrella —checked Oct 29

zuddl.com295,475 avg · S20▼ 18,233295,475179,565top 500k—346,334360,527Oct 29

Tranco 179,565Radar top 500kCrUX —Majestic 346,334Umbrella 360,527checked Oct 29

getjusto.com300,200 avg · S20▼ 18,831300,200135,371top 100k—257,883507,346Oct 29

Tranco 135,371Radar top 100kCrUX —Majestic 257,883Umbrella 507,346checked Oct 29

blissway.com308,748 avg · S20▼ 63,519308,748308,748top 1M———Oct 29

Tranco 308,748Radar top 1MCrUX —Majestic —Umbrella —checked Oct 29

hotplate.com312,344 avg · S20▼ 22,614312,344171,170top 500ktop 500k164,928600,933Oct 29

Tranco 171,170Radar top 500kCrUX top 500kMajestic 164,928Umbrella 600,933checked Oct 29

decentro.tech315,754 avg · S20▲ 39,559315,754179,147top 1M—452,361—Oct 29

Tranco 179,147Radar top 1MCrUX —Majestic 452,361Umbrella —checked Oct 29

swif.ai315,833 avg · S20▲ 46,055315,833496,989top 1M—134,677—Oct 29

Tranco 496,989Radar top 1MCrUX —Majestic 134,677Umbrella —checked Oct 29

akiflow.com332,284 avg · S20▲ 13,445332,284125,870top 100k—136,948734,034Oct 29

Tranco 125,870Radar top 100kCrUX —Majestic 136,948Umbrella 734,034checked Oct 29

dataland.io337,857 avg · S20▲ 4,019337,857299,057top 500k——376,656Oct 29

Tranco 299,057Radar top 500kCrUX —Majestic —Umbrella 376,656checked Oct 29

scrimba.com339,941 avg · S20▼ 5,639339,941134,851top 200ktop 500k59,963825,010Oct 29

Tranco 134,851Radar top 200kCrUX top 500kMajestic 59,963Umbrella 825,010checked Oct 29

warmly.ai351,718 avg · S20, acquired▼ 5,060351,718546,123——157,313—Oct 29

Tranco 546,123Radar —CrUX —Majestic 157,313Umbrella —checked Oct 29

tryjeeves.com365,638 avg · S20▲ 4,457365,638400,292—top 500k330,984—Oct 29

Tranco 400,292Radar —CrUX top 500kMajestic 330,984Umbrella —checked Oct 29

powerus.de366,551 avg · S20▲ 39,492366,551366,551top 500k———Oct 29

Tranco 366,551Radar top 500kCrUX —Majestic —Umbrella —checked Oct 29

osmind.org372,480 avg · S20▲ 13,138372,480232,108top 500k—512,852—Oct 29

Tranco 232,108Radar top 500kCrUX —Majestic 512,852Umbrella —checked Oct 29

carbonchain.com381,693 avg · S20▲ 13,670381,693———381,693—Oct 29

Tranco —Radar —CrUX —Majestic 381,693Umbrella —checked Oct 29

atob.com387,879 avg · S20▲ 27,051387,879249,286top 500k—395,259519,091Oct 29

Tranco 249,286Radar top 500kCrUX —Majestic 395,259Umbrella 519,091checked Oct 29

notabene.id404,681 avg · S20▲ 11,625404,681598,505——210,856—Oct 29

Tranco 598,505Radar —CrUX —Majestic 210,856Umbrella —checked Oct 29

withyotta.com405,888 avg · S20▲ 102,940405,888352,791top 1M—458,985—Oct 29

Tranco 352,791Radar top 1MCrUX —Majestic 458,985Umbrella —checked Oct 29

dripos.com410,304 avg · S20▼ 27,749410,304339,984top 500k—480,624—Oct 29

Tranco 339,984Radar top 500kCrUX —Majestic 480,624Umbrella —checked Oct 29

infeedo.ai416,975 avg · S20▼ 83,696416,975———416,975—Oct 29

Tranco —Radar —CrUX —Majestic 416,975Umbrella —checked Oct 29

humanloop.com421,177 avg · S20, acquired▲ 28,089421,177674,445——167,908—Oct 29

Tranco 674,445Radar —CrUX —Majestic 167,908Umbrella —checked Oct 29

siphoxhealth.com435,286 avg · S20▲ 8,450435,286397,025top 500ktop 1M473,547—Oct 29

Tranco 397,025Radar top 500kCrUX top 1MMajestic 473,547Umbrella —checked Oct 29

arketa.com438,142 avg · S20▲ 11,598438,142319,543top 1M—556,740—Oct 29

Tranco 319,543Radar top 1MCrUX —Majestic 556,740Umbrella —checked Oct 29

bukuwarung.com439,649 avg · S20▲ 29,283439,649232,575top 100ktop 1M646,723—Oct 29

Tranco 232,575Radar top 100kCrUX top 1MMajestic 646,723Umbrella —checked Oct 29

volopay.com441,286 avg · S20▲ 9,566441,286—top 1M—441,286—Oct 29

Tranco —Radar top 1MCrUX —Majestic 441,286Umbrella —checked Oct 29

basedash.com446,255 avg · S20▲ 46,180446,255656,866top 1M—235,644—Oct 29

Tranco 656,866Radar top 1MCrUX —Majestic 235,644Umbrella —checked Oct 29

thndr.app450,629 avg · S20▲ 21,859450,629267,268top 500ktop 1M604,233480,387Oct 29

Tranco 267,268Radar top 500kCrUX top 1MMajestic 604,233Umbrella 480,387checked Oct 29

orangehealth.in456,497 avg · S20▲ 16,880456,497382,658top 500ktop 500k530,336—Oct 29

Tranco 382,658Radar top 500kCrUX top 500kMajestic 530,336Umbrella —checked Oct 29

arist.coredirected465,480 avg · S20▼ 12,075465,480———465,480—Oct 29

Tranco —Radar —CrUX —Majestic 465,480Umbrella —checked Oct 29

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

mailwarm.com467,782 avg · S20▲ 27,328467,782———467,782—Oct 29

Tranco —Radar —CrUX —Majestic 467,782Umbrella —checked Oct 29

pave.com483,907 avg · S20▲ 10,270483,907273,273top 200k—205,677972,770Oct 29

Tranco 273,273Radar top 200kCrUX —Majestic 205,677Umbrella 972,770checked Oct 29

cohere.io484,589 avg · S20, acquired▲ 70,412484,589———484,589—Oct 29

Tranco —Radar —CrUX —Majestic 484,589Umbrella —checked Oct 29

fieldguide.com488,238 avg · S20▼ 51,663488,238———488,238—Oct 29

Tranco —Radar —CrUX —Majestic 488,238Umbrella —checked Oct 29

stackerhq.comredirected503,596 avg · S20▲ 8,526503,596556,688top 1M—450,503—Oct 29

Tranco 556,688Radar top 1MCrUX —Majestic 450,503Umbrella —checked Oct 29

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

porter.run504,597 avg · S20▲ 90,811504,597—top 1M—504,597—Oct 29

Tranco —Radar top 1MCrUX —Majestic 504,597Umbrella —checked Oct 29

taktile.com515,753 avg · S20▲ 24,655515,753411,049top 500k—292,396843,813Oct 29

Tranco 411,049Radar top 500kCrUX —Majestic 292,396Umbrella 843,813checked Oct 29

getbalance.com533,943 avg · S20▲ 99,039533,943460,499top 1M—607,387—Oct 29

Tranco 460,499Radar top 1MCrUX —Majestic 607,387Umbrella —checked Oct 29

soyhenry.com536,277 avg · S20▼ 42,636536,277359,115—top 500k713,439—Oct 29

Tranco 359,115Radar —CrUX top 500kMajestic 713,439Umbrella —checked Oct 29

contasimples.com541,323 avg · S20▼ 21,095541,323543,106top 500ktop 1M539,540—Oct 29

Tranco 543,106Radar top 500kCrUX top 1MMajestic 539,540Umbrella —checked Oct 29

tryfinch.com554,729 avg · S20▲ 69,316554,729665,185top 1M—444,272—Oct 29

Tranco 665,185Radar top 1MCrUX —Majestic 444,272Umbrella —checked Oct 29

draftwise.com559,633 avg · S20▲ 91,601559,633—top 1M—559,633—Oct 29

Tranco —Radar top 1MCrUX —Majestic 559,633Umbrella —checked Oct 29

reflect.runredirected559,637 avg · S20, acquired▲ 183,940559,637702,008top 1M—417,265—Oct 29

Tranco 702,008Radar top 1MCrUX —Majestic 417,265Umbrella —checked Oct 29

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

increase.com570,729 avg · S20▲ 232,707570,729———570,729—Oct 29

Tranco —Radar —CrUX —Majestic 570,729Umbrella —checked Oct 29

trymito.io591,675 avg · S20▲ 20,029591,675———591,675—Oct 29

Tranco —Radar —CrUX —Majestic 591,675Umbrella —checked Oct 29

datafold.com597,684 avg · S20▲ 2,422597,684871,775top 1M—323,593—Oct 29

Tranco 871,775Radar top 1MCrUX —Majestic 323,593Umbrella —checked Oct 29

lightdash.com602,967 avg · S20▲ 55,360602,967918,417——287,517—Oct 29

Tranco 918,417Radar —CrUX —Majestic 287,517Umbrella —checked Oct 29

brevy.com613,133 avg · S20, acquired▼ 11,310613,133613,133top 1Mtop 1M——Oct 29

Tranco 613,133Radar top 1MCrUX top 1MMajestic —Umbrella —checked Oct 29

wareiq.com617,820 avg · S20▼ 82,182617,820———617,820—Oct 29

Tranco —Radar —CrUX —Majestic 617,820Umbrella —checked Oct 29

command.airedirected636,212 avg · S20, acquired▼ 118,712636,212———636,212—Oct 29

Tranco —Radar —CrUX —Majestic 636,212Umbrella —checked Oct 29

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

finmark.comredirected639,081 avg · S20, acquired▼ 22,296639,081897,600——380,562—Oct 29

Tranco 897,600Radar —CrUX —Majestic 380,562Umbrella —checked Oct 29

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

keydb.dev673,448 avg · S20, acquired▲ 253,869673,448957,426top 1M—389,469—Oct 29

Tranco 957,426Radar top 1MCrUX —Majestic 389,469Umbrella —checked Oct 29

herondata.io707,468 avg · S20▲ 4,418707,468730,311top 1M—684,624—Oct 29

Tranco 730,311Radar top 1MCrUX —Majestic 684,624Umbrella —checked Oct 29

speedscale.com726,160 avg · S20▲ 27,227726,160———726,160—Oct 29

Tranco —Radar —CrUX —Majestic 726,160Umbrella —checked Oct 29

verifiable.com726,624 avg · S20▲ 231,187726,624—top 1M—726,624—Oct 29

Tranco —Radar top 1MCrUX —Majestic 726,624Umbrella —checked Oct 29

futurefields.io727,374 avg · S20▲ 232,907727,374———727,374—Oct 29

Tranco —Radar —CrUX —Majestic 727,374Umbrella —checked Oct 29

bik.ai748,048 avg · S20▼ 18,433748,048———748,048—Oct 29

Tranco —Radar —CrUX —Majestic 748,048Umbrella —checked Oct 29

inspectify.com750,327 avg · S20▲ 1,327750,327522,653——978,001—Oct 29

Tranco 522,653Radar —CrUX —Majestic 978,001Umbrella —checked Oct 29

charityvest.org763,596 avg · S20, acquired▼ 143,319763,596———763,596—Oct 29

Tranco —Radar —CrUX —Majestic 763,596Umbrella —checked Oct 29

vitablehealth.com780,426 avg · S20▲ 100,482780,426———780,426—Oct 29

Tranco —Radar —CrUX —Majestic 780,426Umbrella —checked Oct 29

show 20 more

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.