Y Combinator Startups

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

82 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

W16 · 82 sites · ← all sites

82 sites, including 13 parked or gone · show only live sites

#URLThis weekAvg rankTrancoRadarCrUXMajesticUmbrellaChecked

apollo.io15,183 avg · W16▲ 20115,1837,523top 5ktop 50k10,18427,841Sep 14

Tranco 7,523Radar top 5kCrUX top 50kMajestic 10,184Umbrella 27,841checked Sep 14

mux.com19,484 avg · W16▲ 64619,4844,219top 5k—38,89715,335Sep 14

Tranco 4,219Radar top 5kCrUX —Majestic 38,897Umbrella 15,335checked Sep 14

podium.com25,395 avg · W16▼ 1,38025,39512,873top 10ktop 1M22,25441,058Sep 14

Tranco 12,873Radar top 10kCrUX top 1MMajestic 22,254Umbrella 41,058checked Sep 14

sendbird.com28,489 avg · W16▲ 12428,4892,363top 2k—75,5907,513Sep 14

Tranco 2,363Radar top 2kCrUX —Majestic 75,590Umbrella 7,513checked Sep 14

luciq.ai52,121 avg · W16▲ 91252,12117,944top 5k—127,48910,929Sep 14

Tranco 17,944Radar top 5kCrUX —Majestic 127,489Umbrella 10,929checked Sep 14

lendedu.com59,451 avg · W16, acquired▼ 1,88859,45195,379top 1M—23,522—Sep 14

Tranco 95,379Radar top 1MCrUX —Majestic 23,522Umbrella —checked Sep 14

rappi.comredirected63,321 avg · W16▲ 1,63263,32116,133top 10k—99,43774,394Sep 14

Tranco 16,133Radar top 10kCrUX —Majestic 99,437Umbrella 74,394checked Sep 14

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

hellobonsai.com83,511 avg · W16, acquired▲ 36083,511127,219top 500k—39,802—Sep 14

Tranco 127,219Radar top 500kCrUX —Majestic 39,802Umbrella —checked Sep 14

netomi.com89,290 avg · W16▲ 5,97289,29042,803top 50k—166,52158,545Sep 14

Tranco 42,803Radar top 50kCrUX —Majestic 166,521Umbrella 58,545checked Sep 14

outschool.com102,297 avg · W16▲ 10,913102,29732,492top 50ktop 100k35,528238,872Sep 14

Tranco 32,492Radar top 50kCrUX top 100kMajestic 35,528Umbrella 238,872checked Sep 14

nurx.com114,880 avg · W16, acquired▲ 95114,880149,959top 500ktop 500k79,800—Sep 14

Tranco 149,959Radar top 500kCrUX top 500kMajestic 79,800Umbrella —checked Sep 14

emburse.com119,481 avg · W16, acquired▲ 9,499119,48173,807top 100ktop 1M72,648211,988Sep 14

Tranco 73,807Radar top 100kCrUX top 1MMajestic 72,648Umbrella 211,988checked Sep 14

boomsupersonic.com124,442 avg · W16▲ 156124,442197,677——51,206—Sep 14

Tranco 197,677Radar —CrUX —Majestic 51,206Umbrella —checked Sep 14

daily.co138,364 avg · W16▲ 5,527138,36445,007top 50k—125,520244,564Sep 14

Tranco 45,007Radar top 50kCrUX —Majestic 125,520Umbrella 244,564checked Sep 14

castle.io141,793 avg · W16▼ 4,273141,79337,528top 50k—338,81849,034Sep 14

Tranco 37,528Radar top 50kCrUX —Majestic 338,818Umbrella 49,034checked Sep 14

getaccept.com146,910 avg · W16▼ 5,950146,91068,738top 200k—166,896205,095Sep 14

Tranco 68,738Radar top 200kCrUX —Majestic 166,896Umbrella 205,095checked Sep 14

deepgram.com153,834 avg · W16▲ 3,008153,83429,422top 20ktop 500k23,096408,985Sep 14

Tranco 29,422Radar top 20kCrUX top 500kMajestic 23,096Umbrella 408,985checked Sep 14

petcube.com171,227 avg · W16▼ 339171,22735,068top 50k—56,419422,195Sep 14

Tranco 35,068Radar top 50kCrUX —Majestic 56,419Umbrella 422,195checked Sep 14

paystack.com186,034 avg · W16, acquired▼ 12,345186,03455,239top 100ktop 500k26,066476,796Sep 14

Tranco 55,239Radar top 100kCrUX top 500kMajestic 26,066Umbrella 476,796checked Sep 14

chatfuel.com202,845 avg · W16▼ 8,892202,84566,117top 100k—21,723520,694Sep 14

Tranco 66,117Radar top 100kCrUX —Majestic 21,723Umbrella 520,694checked Sep 14

stilt.com204,717 avg · W16, acquired▼ 3,386204,717313,264top 1M—96,169—Sep 14

Tranco 313,264Radar top 1MCrUX —Majestic 96,169Umbrella —checked Sep 14

functionofbeauty.com206,078 avg · W16▼ 1,148206,078293,695top 1Mtop 1M118,460—Sep 14

Tranco 293,695Radar top 1MCrUX top 1MMajestic 118,460Umbrella —checked Sep 14

pocketsuite.io216,330 avg · W16▲ 10,993216,330282,792top 1Mtop 500k149,868—Sep 14

Tranco 282,792Radar top 1MCrUX top 500kMajestic 149,868Umbrella —checked Sep 14

salt.security220,353 avg · W16▲ 481220,353337,930top 1M—102,775—Sep 14

Tranco 337,930Radar top 1MCrUX —Majestic 102,775Umbrella —checked Sep 14

relativityspace.com256,927 avg · W16▲ 815256,927403,797——110,056—Sep 14

Tranco 403,797Radar —CrUX —Majestic 110,056Umbrella —checked Sep 14

opentrons.com294,979 avg · W16▼ 31,389294,97962,700top 50k—233,323588,913Sep 14

Tranco 62,700Radar top 50kCrUX —Majestic 233,323Umbrella 588,913checked Sep 14

lattice.com311,270 avg · W16▼ 1,532311,27065,666top 500ktop 1M25,529842,614Sep 14

Tranco 65,666Radar top 500kCrUX top 1MMajestic 25,529Umbrella 842,614checked Sep 14

geckorobotics.com326,765 avg · W16▲ 4,490326,765—top 1M—326,765—Sep 14

Tranco —Radar top 1MCrUX —Majestic 326,765Umbrella —checked Sep 14

joinfightcamp.com340,342 avg · W16▲ 1,469340,342493,061——187,622—Sep 14

Tranco 493,061Radar —CrUX —Majestic 187,622Umbrella —checked Sep 14

astranis.com341,872 avg · W16▲ 10,857341,872———341,872—Sep 14

Tranco —Radar —CrUX —Majestic 341,872Umbrella —checked Sep 14

soundboks.com371,225 avg · W16▼ 13,855371,225380,511top 1M—361,938—Sep 14

Tranco 380,511Radar top 1MCrUX —Majestic 361,938Umbrella —checked Sep 14

thunkable.com380,942 avg · W16▼ 14,834380,942171,238top 500ktop 500k83,025888,562Sep 14

Tranco 171,238Radar top 500kCrUX top 500kMajestic 83,025Umbrella 888,562checked Sep 14

superside.com381,982 avg · W16▼ 697381,982141,490top 500ktop 1M47,583956,873Sep 14

Tranco 141,490Radar top 500kCrUX top 1MMajestic 47,583Umbrella 956,873checked Sep 14

netbeez.net417,111 avg · W16▼ 11,941417,111—top 500k—417,111—Sep 14

Tranco —Radar top 500kCrUX —Majestic 417,111Umbrella —checked Sep 14

yardbook.com418,567 avg · W16▲ 4,410418,56769,020top 200ktop 50k236,034950,648Sep 14

Tranco 69,020Radar top 200kCrUX top 50kMajestic 236,034Umbrella 950,648checked Sep 14

tovala.com466,762 avg · W16▼ 28,108466,762267,752top 500ktop 500k307,827824,706Sep 14

Tranco 267,752Radar top 500kCrUX top 500kMajestic 307,827Umbrella 824,706checked Sep 14

caper.ai491,241 avg · W16, acquired▲ 23,901491,241———491,241—Sep 14

Tranco —Radar —CrUX —Majestic 491,241Umbrella —checked Sep 14

truebill.comredirected520,325 avg · W16, acquired▲ 3,658520,325377,891top 1M—244,179938,905Sep 14

Tranco 377,891Radar top 1MCrUX —Majestic 244,179Umbrella 938,905checked Sep 14

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

m.io553,698 avg · W16▲ 2,455553,698878,843——228,553—Sep 14

Tranco 878,843Radar —CrUX —Majestic 228,553Umbrella —checked Sep 14

wakie.com557,374 avg · W16▲ 9,962557,374447,808top 500k—666,939—Sep 14

Tranco 447,808Radar top 500kCrUX —Majestic 666,939Umbrella —checked Sep 14

deako.com587,295 avg · W16▼ 20,263587,295254,813top 500k——919,777Sep 14

Tranco 254,813Radar top 500kCrUX —Majestic —Umbrella 919,777checked Sep 14

focal.systems610,248 avg · W16▲ 69,785610,248—top 1M—610,248—Sep 14

Tranco —Radar top 1MCrUX —Majestic 610,248Umbrella —checked Sep 14

devcolor.org639,294 avg · W16▼ 26,720639,294———639,294—Sep 14

Tranco —Radar —CrUX —Majestic 639,294Umbrella —checked Sep 14

protonet.info671,939 avg · W16▲ 25,200671,939671,939top 500k———Sep 14

Tranco 671,939Radar top 500kCrUX —Majestic —Umbrella —checked Sep 14

embarktrucks.comgone692,785 avg · W16, public▼ 10,862692,785———692,785—Sep 14

Tranco —Radar —CrUX —Majestic 692,785Umbrella —checked Sep 14

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

gitprime.comgone719,083 avg · W16, acquired▼ 20,280719,083———719,083—Sep 14

Tranco —Radar —CrUX —Majestic 719,083Umbrella —checked Sep 14

this domain is gone; the rank is what it left behind — no A or AAAA record

gocopia.com806,893 avg · W16▲ 27,793806,893———806,893—Sep 14

Tranco —Radar —CrUX —Majestic 806,893Umbrella —checked Sep 14

landed.com843,171 avg · W16, acquired▼ 3,248843,171———843,171—Sep 14

Tranco —Radar —CrUX —Majestic 843,171Umbrella —checked Sep 14

platohq.comredirected867,536 avg · W16, acquired▲ 18,356867,536———867,536—Sep 14

Tranco —Radar —CrUX —Majestic 867,536Umbrella —checked Sep 14

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

mrelief.com898,013 avg · W16▼ 35,301898,013———898,013—Sep 14

Tranco —Radar —CrUX —Majestic 898,013Umbrella —checked Sep 14

gigwell.com960,708 avg · W16960,708960,708top 500k———Sep 14

Tranco 960,708Radar top 500kCrUX —Majestic —Umbrella —checked Sep 14

flexengage.com966,905 avg · W16, acquired▼ 64,989966,905————966,905Sep 9

Tranco —Radar —CrUX —Majestic —Umbrella 966,905checked Sep 9

mailtime.com968,968 avg · W16968,968———968,968—Sep 14

Tranco —Radar —CrUX —Majestic 968,968Umbrella —checked Sep 14

ablehealth.com— avg · W16, acquired———————

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

amberbox.com— avg · W16——top 1M———Sep 14

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

bymason.com— avg · W16——top 500k———Sep 14

Tranco —Radar top 500kCrUX —Majestic —Umbrella —checked Sep 14

carbic.com— avg · W16———————

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

golorry.comparked— avg · W16———————

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

goodybag.comparked— avg · W16, acquired———————

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

this domain is parked; the rank measures the placeholder, not the company — the domain is on afternic.com's nameservers, a domain sale platform

hellokip.com— avg · W16, acquired———————

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

hingeto.com— avg · W16, acquired———————

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

histowiz.com— avg · W16———————

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

isonohealth.com— avg · W16———————

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

loopgenomics.comredirected— avg · W16, acquired———————

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

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

luministlabs.comparked— avg · W16, acquired———————

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

lygos.com— avg · W16———————

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

lynks.com— avg · W16———————

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

magicbus.io— avg · W16———————

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

meterfeeder.com— avg · W16———————

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

mineralsoft.comredirected— avg · W16, acquired———————

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

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

nova.airedirected— avg · W16, acquired———————

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

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

paveai.com— avg · W16———————

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

perlara.com— avg · W16———————

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

pulpix.com— avg · W16, acquired———————

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

quiltdata.comredirected— avg · W16———————

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

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

qvin.com— avg · W16———————

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

redspread.comparked— avg · W16, acquired———————

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

this domain is parked; the rank measures the placeholder, not the company — the domain is on afternic.com's nameservers, a domain sale platform

revl.com— avg · W16———————

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

sanrights.org— avg · W16———————

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

stealthworker.com— avg · W16———————

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.