1,153 YC B2B Startups
1,153 Y Combinator companies carry the B2B tag in YC's own directory, across every batch since 2005. Each row shows what the company does, its batch, HQ and status, and links to its YC application reconstructed in the real form, so a founder building a B2B startup can read how accepted companies answered the same questions.
- Companies
- 1,153
- Top industries
- B2B, Fintech and Healthcare
- Top locations
- San Francisco, New York and London
- YC top companies
- 14
1,153 reconstructed applications
Read the YC application of all 1,153 companies
- Every company's YC application, reconstructed in the real form
- Filter every batch by industry, country and team size
- Then find the investors who fund startups like yours
The first 100 companies, top companies first
#CompanyBatchHQStatusApplication
3
BenchlingTopUnlocking the power of biotech with modern software for modern scienceSummer 2012San Francisco, CAActive
4
CognitoTopFrictionless, modern identity verification that starts with just a…Summer 2014Palo Alto, CAAcquired
7
GitPrimeTopVisibility and analytics for software development leaders.Winter 2016Durango, COAcquired
8
GustoTopProvides growing businesses with everything to take care of their teamWinter 2012San Francisco, CAActive
9
MixpanelTopMixpanel is event analytics for builders that need answers.Summer 2009San Francisco, CAActive
10
OdekoTopOur operations software makes it easier to run--and grow--your cafeSummer 2019New York, NYActive
That is 10 of 1,153.
Every company below has its YC application reconstructed in YC Insights. Create a free account to read them all.
12
SegmentTopSoftware and APIs to collect, clean, and control customer data.Summer 2011San Francisco, CAAcquired
13
SqreenTopSqreen is the application security platform for the modern enterpriseWinter 2018San Francisco, CAAcquired
16
10x ScienceThe AI-native platform for next-generation protein characterization.Winter 2026San Francisco, CAActive
24
Advantage ClubGlobal platform for employee engagement with rewards&flexible benefitsSummer 2021Gurugram, HR, IndiaActive
25
AerCompound compliance: the central hub for meeting SEC obligationsSummer 2021New York, NYAcquired
28
AfterQueryApplied research lab curating data solutions for foundation model…Winter 2025San Francisco, CAActive
30
AgencyAgency replaces traditional security and compliance headcount with AI.Winter 2022New York, NYActive
38
AklimateSoftware for enterprises to track and reduce supply chain emissionsWinter 2022London, England, United KingdomInactive
40
Akute HealthThe medical record & infrastructure stack for digital health companiesSummer 2021Austin, TXActive
41
AlaanModern finance platform for the Middle EastWinter 2023Dubai, Dubai, United Arab EmiratesActive
42
AlanaStaff management software for retail, manufacturing and hospitalitySummer 2019Mexico City, CDMX, MexicoInactive
43
Aleph Solutions (Alephee)We help automotive aftermarket brands to supply and sell parts onlineSummer 2021Buenos Aires, CABA, ArgentinaActive
44
AlexYour AI recruiter for interviewing and identifying the best talentWinter 2024San Francisco, CAActive
48
AllSome FulfillmentFulfillment platform to build Southeast Asia e-commerce operationsWinter 2019Shenzhen, Guangdong, ChinaActive
52
AnanaThe agentic system of action for hotel groups and management companiesSpring 2025New York, NYActive
58
Ankr HealthVirtualizing brick-mortar infrastructures of clinics w/ generative AIWinter 2022San Francisco, CAActive
59
ApptimizeApptimize lets mobile teams innovate faster to create an amazing user…Summer 2013San Francisco, CAAcquired
60
AppXAppX helps social media creators launch their own mobile apps.Summer 2021New Delhi, DL, IndiaActive
66
ArcusPayment-as-a-service that helps any business launch payment solutionsSummer 2013New York, NYAcquired
72
Artemis SearchA search technology that actually finds what you’re looking for.Summer 2022San Francisco, CAActive
73
Artificial SocietiesWe build networks of AI personas that simulate stakeholder opinionsWinter 2025London, England, United KingdomActive
77
AshbyAll-in-one recruiting platform that empowers hiring excellence in…Winter 2019San Francisco, CAActive
81
AssetaMarketplace for industrial spare parts and capital equipment.Summer 2013Newport Beach, CAActive
84
AtlasModern customer support platform replacement for Intercom and ZendeskWinter 2022San Francisco, CAActive
95
AvinaGTM signals engine for sales teams. Automate warm outbound with AI.Summer 2022New York, NYActive
The other 1,053 companies
Every remaining company in this list, A to Z. Each link opens the company's public page.
Axross Pte LtdBackdropBalanceBambooBanaboBasedashBaseline AIBaserunBayeslineBeauBemloBenchifyBentoBetter OpinionsBetterBasketBIKBikryBillow AI LabsBiocartesianBirdieBitBoardBitriseBlazeBlinkBlitzBluebirdsBluebookBluelightBlumaBolna AIBondBoom AIBoostlyborongBoyaBracketBrainbase LabsBranch AIBraviBretton AIBrevyBricksAIBridgecardBrieferBrioHRBronco AIBrowserOSBuildJetBujetiBulk MRO Industrial SupplyBulletinBunkyrBuzzleBystreetByte KitchenCabalCactusCadenceCakeworkCallab AICallbackCalltreeCambioCandidatelyCaptainCarddaCardinalCaribouCarmaCarousel TechnologiesCarrot LabsCarSignalCaseflood.aiCash Flow PortalCashboardCashBookCekuraCelestCemblaCenoteCentralCentralizeCeroCertus AIChampCharacterQuiltChariotChatwootChimaChipaxChordioCinapseCinderCiroCladClarumClayboardClearest HealthClearlineClevaClewClickPeclicOHClideyCLODOCloseCloseraCloudchiprCloudthreadCluesoCOACHCoastCoastsCobblestoneCococartCodeCanaryCodes HealthCofactrCoffeeAICognitio LabsCognition IPCogramCohesiveColdreachCollectlyCommand AICommissary Club (formerly 70 Million Jobs)CommodityAICommunity Phone CompanyCompleteComplifComplyDoCompra RápidaCompUpComraderyConcourseConduitConeConfident LIMSConfidoConiferConstructableContext.devContourControlHubConvictionalConvoyCoperniqCopiaCopper HealthCopyCatCoreCareCorelayerCorisCorsairCortexCorveraCovalCraftOSCreatorMLCrediBookCriyaCTGTCuckoo LabsCumbucaCuracelCurriCustomerOSCustomilydari.devDartDartboard EnergyDashlabs.aiData MechanicsDataheraldDatalandDatloDatostDatreeDatricsDealls - Jobs & MentoringDecaworkDecentDecipher AIDecisional AIDeedDeepSim, Inc.Delegasidelt.aiDemand CurveDemodeskDev Tools AIDevCycleDexterDialectDialogusDigitalCarbondiliDimOrderDisclodisclosures.ioDisputeNinjaDistroDittofeedDockDocketDocsumDojah IncDotDoubleDoverDraftwiseDrDroidDreamDripDropbaseDucklyDuffelDyspatchEchoEchoes HQEcliptorEdenEdgeBitEdgeTraceEdlyftEdviroElayneElectroNeekElevateEloquent AIElyos AIEmbeddablesEmbedderEmber RoboticsEmerge ToolsEnable UsEntvinEnveloopEpsilon3eqtbleeradErgoEstocaEthosXEverestEvidenceEvidently AIExpent IncExpress BuildingExtendF4 IndustriesFabiusFairway HealthFamiliarFarelfarmtheoryFastgenFathomFazeshiftFernFicraFieldguideFileforgeFinantierFindlyFinFlxFiniFinlensFinmarkFinntFinosuFintoFirezoneFirstbase.ioFirstSupport.aiFlagrightFleekFlexDeskFlexWashFlightfoxFloatFlowdashFlowEQflowscopeflukeFoasterFondoForgeFormanceFormula InsightForwardFoundationFreesoloFrekilFresh FactoryFreshpaintFrizzleFrubana IncFuseFuseG LNKGaleGaliniGas PosGatherGaugeGecko SecurityGemGeostarGETASAPGhostEyeGimBooksGitCafegitdotGiveCampusGiveffectGlenGlideGlideGlowing.ioGojiberry AIGoodkindGovPredictGreat QuestionGreyGrowthBookGuestyGuruHotelHABIThaddockHadriusHaikuHandledHandoffHarmoneyHatchHatchwaysHavenHaystackHealth HarborHedgeHeliosHellometerHelonicHENRYHERAHeron Datahighlight.ioHilosHindsightHingetoHireArtHiroHivyHockeyStackHonaHoneydewHosshotglueHowdy.comHubbleHUBUCHuduHumaansHumanceHumandHyLightHyperboundHyperbrowserHypercoreHyperDXHyperGlueHyperseedHypestreamIcePanelidemeumilumadataImagine AIInariIndexicalInEventInfiniteInfinityInfisicalInfiuss Healthinfra.newInfracostInpharmDInspectMind AIInstaAgentInstant LabsInstrumentlInteguruIntelligentIntunedInventive AIInvoiditemJenfiJestorJet AdminJetdocsJigaJitsuJoinSubJourneyJuiceboxJutsooKapital BankKaraKarbon CardKayaKebraKeepKeetKemNetKenobiKeyriKlarifyKnowtexKraftfulKularLab0Lamb LabsLaminarLaminateLanesurfLanternLapislapzoLarkLaserfocusLatentLATOLattedLaudableLaudspeakerLayerupLayupLeadbayLeadGeniusLeaping AILemmaLenkLevoLevocred AILevroLexiLightdashLightfieldLightskiLightsprintLimrunLingo.devLinkanaLinkGrepLiva AILogicalLogosGuardLong Term Stock ExchangeLoop SupportLopusLovageLuca IQLuciq (formerly Instabug)LumariLumeLumetricLuminaiLuthorLyraMagicMagic HourMagiCodeMailwarmMaingenMakrwatchMalgamalibouManateeManifold FreightMantysManufact (formerly mcp-use)MarcoPoloMarkerMarketForceMarooMarqVisionMatereeMatidor.comMaya LabsMedMe HealthMeetAnywayMeitreMemory StoreMendelMentumMercatorMeridian IndustriesMerlin AIMeshMetalMetamanagementMethod FinancialMetriportMiddeskMidenMiggosMilioMindedMindFiMini ExhibitionsMinroMiracleMistleMixRankMobileBoostMobotModel MLModernModernbancModernLoopModusMogaraMojoMomenticMomo MedicalMonarchaMonosiMonteMontoMotionMotivesMountMovingLakeMozart DataMunifyMutinyNabisNamecard.aiNanoNetsNarrativeNashNashNateroNavatticNebula SecurityNeosyncNeuromorphicNewCraftNextPayNextstoreNitrodeNovaNovelcareNowadaysNullstoneObento HealthODWENOffDealOfficelyOicoOkiOkibiOktetoOlaClickOmniOmnistrateOnboard.ioOnDeck AIOneCLIOneGrepOneleetOneSchemaOneSignalOneTextonetoolOnfolkOnsite ProOntopOpenFoundryOpenFunnelOpenIntakeOpenmartOpenrollOpenSightOpensteerOpenTagOpusense AIOrbiterOrderliOrgOrgOS3OsseusOutlitoutloud.aiOutsetOutshipOwayPactimaPairioPaletteHQPalisadePallyPalommaPanaceaPanelsPanoptivePanorama EducationParachuteParadeParagon AIParrot Software 🦜PartneredPartneredPartnerStackPatchworkPatent WatchPathPilotPavootPay SwifterPayCaddyPayflowPAYZEPeakfloPeebaPelicaPenguin AIPentagonPeoplebox.aiPer DiemPerceptron MLPersistIQPetrarchPhotoniumPibit.aiPierPierrePigeonPillarPlusPincitesPinnaclePivo Technology IncPlanbasePlanePlatypusPlayAblyPledge HealthPlerkPlumePointOnePolishedPoloTabPolytomicPoplPoplarMLPopsyPortão 3PorterPostHogPoth LabsPotionPovioPowerUsPraximPrePreflightPrekiPrembly (formerly Identitypass)Prescience, Inc.Presti AIPretty InstantPrimeVaultProboProcIndexProglixProhostAIProliferatePromoted.aiPromptlessPropelAuthProperPropexoPropRiseProspaProsperProtegoProtex AIProxisPump.coPylonPyxaiQ2QqomplementQualGentQuanQuantstructQuartzyQuery VaryQueueQuickcardQuotaBookR2RadleyRaindropRally UXRRankaiRASPIRERationalRDashReacherReadilyReadyRebillRedaptoRedouble AIRefineTrain AIReflectReforged LabsRehook.aiRelateRelvy AIRemedial HealthRendaloMaqReplicasRescriptResponseResquaredRetailReadyRetapeRethoricRev GenomicsREVERRevlRevylRewbiReworkdRexRidecellRiderriftRima AI (formerly Garage)RimwardRinsedRiskAngleRisklyticsRisottoRivetRiveterRivia.AIRivieraRocketeerROGERRoomblockerRoomstormRootlyRoteRovrRowFlowRoxelsRudusRulebricksRulesetRunwayRutterRyseSage AISalaryBookSalaryBoxSalesformSalesgraphSalesPatriotSalientSALTSalusSalvySamedaySandbox BankingSanifuSantéSapling.aiSaturnSaudara AIScispotScoopScopeScratch DatascreenpipeScribeScritchSculptSeals AISecodaSendbirdSennu AISequinSeroShekel MobilitySherloqSherpaSherpa LabsShogunShorShortLoopShuttle CentralSidekickSiftSigmaMind AISigmanticAISigNozSilimateSilkChartSimplexSimplifyd SystemsSirdabSixtyfourSkioSkopeSkyhookSlashAuthSmartbaseSmobiSNABSnapdocsSnapTradeSoffSonnetSorenSortedSourcebotSpadeWorksSpecCheckSpecificSpeckSphereSpire LawSpoknSpottSpritesSpurSRE.aiStableStackerStackupStafBookStarSlingStellarStiltStocklineStormy AIStoryboardStorylaneStorylineStownestStradastratifyStreamStructStudioSubmittableSubsetsSugerSully.aiSunlightSupafaxSuperb AISuperbarSuperorderSuperpowered AISuperSendSuperTokensSuperunitSupliasSuretyNowSwif.aiSwiftSkuSwiftypeSwipeSwipe TechnologiesSwitchboardSylvianSymphonySynapsica HealthcareSynchSynclySytexTagsafeTailorTaivTajirTake AppTakeCareOSTalentropy.aiTamarind BioTandemTarifflo Inc.TarsalTaskadeTavusTaxGPTtday.comTeamNoteTejas AITellaTempoTenortEQuitableTerra APITerrainTesorioTesterArmyText BlazeThe Context CompanyThe Forecasting CompanyThe New Money CompanyThematicTheraThetaThomasThorntaleThreadthroxyTinyTivaraToDesktopTodos ComemosToolifyTopshipTorchTough CommerceTraceTrackstarTractianTradeFlowTrataTravaTraverse TechnologiesTreasury PrimeTrébolTreliumTrellis AITrellusTrigger.devTrigoTropeTrueBizTruewindTrustytruthsystemsTruvaTuring Labs Inc.Tuva HealthTwentyTwo DotsTYBR HealthTyltGOTypewiseUBITSUiflowUltralightUnflowUnhazeUnion54Unravel CarbonUnsaddlUnsiloed AIUnstatiqunSurveyUnthreadUpCodesUpKeepUplaneUpLinkUpsolve AIUser HeroUserGemsVaeroValariVantaVarosVaultPayVectorVelesVendoVendoraVendyVenu AIVerdeVerihubsVersion StoryVersiveVersoriVertoVespperVetcoveVetnioVibeVibeFlowViddyVimmerseVista PowerVitalizeVizzlyVobiVogentVoiceryVolopayVoreliosVouchVoxOps AIWareIQWarmly,WarpWarrantWaterplanWavelengthWaypointWazaWeavewebapp.ioWebinyWeekdayWhitespaceWild MooseWillingWindmillWindsorwinfuncWithIdaWondercraftWorkbaseWorkers IOWorkflow86WorkpayWorksphereWritesonicYarnyBANQYezzaZaplarZarazZavoZealZeitviewZenterZeo Route PlannerZeroPathZipZoios.ZommaZuddlZuma
Applying to YC? Study these applications first.
YC Insights holds the reconstructed application of every company on this page, filterable by batch, industry and country, next to 60,000+ investors who fund startups like yours.
About this list
This list is part of Round Funded, an investor database and outreach platform for founders. It covers 60,000+ active VCs, angels, family offices and accelerators with verified contacts, lets you send pitches from your own Gmail, and includes a free Data Room for your raise. How this data is built.
Frequently Asked Questions
How many Y Combinator companies are in tagged B2B?
This directory lists 1,153 YC companies in tagged B2B, out of 6,207 across every batch since 2005. The count updates when the directory is refreshed, and every one of them is on this page with a link to its public profile.
Are the YC applications on these pages real?
No. YC keeps submitted applications private. Every application linked from this list is a reconstruction: the real YC form questions, answered from the company's public data. The Company section is free on each page; the rest opens in YC Insights.
Which companies on this page are best known?
Algolia, Amplitude and Benchling lead the table above. YC marks 14 of the 1,153 companies here as top companies, its own list of the highest-valued and highest-revenue alumni.
How do I use this list when applying to YC?
Pick five companies on this page whose product is closest to yours, read their reconstructed applications side by side in YC Insights, and note how each answers the same question. Then write your own answers to that standard.
Where does this data come from?
From YC's public company directory, refreshed by batch, with each company's status, industry and location as YC reports them. Round Funded adds the reconstructed application and the founder profiles; nothing private is published.
What is Round Funded?
Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.