Y Combinator — Full Portfolio

Zeon Systems builds robotic infrastructure for scientific laboratories, enabling automation of flexible and adaptive experiments through perception, control, and manipulation capabilities.

Advanced ManufacturingAI & Machine LearningDeep TechRoboticsSan Francisco, US

BKBrontë Kolar(CEO)inTDTahir D'Mello(CTO)in

Co-investorsBLBlast.ClubFUFundersClubPIPioneerA*A*ANAndreessen HorowitzCRCRV (Charles River Ventures)+4 more

Zep provides infrastructure that manages and governs agent memory at scale across multiple data sources including chat, documents, events, and business data.

AI & Machine LearningData & InfrastructureDeveloper ToolsEnterprise SoftwareSan Francisco, US

DCDaniel Chalef(CEO)inTyler Gillson(Founder)Travis Beauvais(Engineer)Brent Cadiz(Assistant)Paul Paliychuk(Engineer)Andre Adeyemi(Chief of Staff)

Co-investorsFIFirst Star VenturesENEngineering CapitalSTStep Function Ventures

Zephyr Fusion develops compact, in-orbit fusion power systems for space-based applications including microgravity manufacturing, data centers, defense, propulsion, and human habitation.

Advanced ManufacturingDeep TechEnergySpace TechSan Diego, US

EHEdward Hinson(Founder)inGBGalen Burke(Founder)inGalen Burke Edward Hinson(Founder)

Co-investorsALAlumni VenturesPIPioneerSTSterling RoadZAZAKA VCASAsymmetry VenturesBLBlast.Club+10 more

Zeplin is a collaboration platform that helps product teams organize design documentation and connect designs to code.

Developer ToolsEnterprise SoftwareSaaSSan Francisco, US

PKPelin Kenez(CEO)inICIsmail Ceylan(Software Developer)inMAMerih Akar(Developer)inBÇBerk Çebi(Founder)inGökay Borulday(Engineering Lead)Kai Mak(Vice President of Customer Success \u0026 Sales)

Co-investorsFLFloodgateGRGraph VenturesSPSparkland CapitalSTStartersHubBGBG FundFOFour Cities+2 more

Zepto operates a network of micro-warehouses across Indian cities to provide rapid grocery delivery to consumers.

ConsumerFoodTechMH, IN

APAadit Palicha(Founder)inKVKaivalya Vohra(Founder)inNikhil Mittal(Vice President of Engineering)

Co-investorsALAlexander Geza Marcus PejacsevichALAlteria CapitalAVAvenir Growth CapitalBRBreyer CapitalCOContraryEPEpiq Capital Investment Advisory LLP+18 more

Zergo produces a urine-based test designed to assist women with fertility and conception.

HardwareHealthtechMedical DevicesWaterloo, CA

NDNoah Debrincat(Founder)inTDThomas Dunlop(Founder)in

Co-investorsAFAFI Capital PartnersBEBeagle VenturesCACasa Verde CapitalCACathexis VenturesEMEmles AdvisorsFOFour Cities+4 more

Zerobroker is a freight and logistics platform that connects shippers directly with truckers, eliminating brokerage fees, and handles full truckload shipping (dry van, reefer, flatbed), spot and contract RFPs, load tracking, billing, and carrier vetting.

B2B MarketplacesLogistics & Supply ChainSaaS

Co-investorsGRGreat Oaks Venture CapitalFLFlexportFUFundersClubSMSmartGateVCSTStreamlined Ventures

Zerocater provides corporate meal and snack delivery services for office-based companies across multiple U.S. cities.

B2B MarketplacesEnterprise SoftwareFoodTechFuture of WorkSaaSSan Francisco, US

ASArram Sabeti(CEO)inJWJoseph Walla(Co-Founder and CEO)Zain Allarakhia(1st Employee (operations))ABAndrew Badr(Software Engineer)inRoger Cosseboom(Head of Engineering)Bill Moorier

Co-investorsALAlumni VenturesCLCleveland AvenueRARainfall VenturesREREMUS CapitalSTStruck CapitalWEWestern Technology Investment+6 more

ZeroDev provides smart account infrastructure for blockchain applications, enabling better onboarding, transaction flows, and user experiences through account abstraction technology.

Crypto & Web3Data & InfrastructureDeveloper ToolsEnterprise SoftwareLos Angeles, US

DCDerek Chiang(Founder)in

Co-investors6T6th Man Ventures

ZeroDown was a San Francisco startup offering an alternative path to homeownership, letting customers move into a home and build equity toward purchase without a traditional down payment.

B2B MarketplacesFintechPropTechSan Francisco, US

ADAbhijeet Dwivedi(Founder)inSteve(Co-Founder)TGTushar Garg(CEO & Co-Founder)RDRyan Dibble(CFO & Co-Founder)inLSLaks Srini(CTO)inJKJason Kwon(GC+CSO)in

Co-investorsCACanvas VenturesNONorwest Venture PartnersJAJames Beshara FundSOSoma CapitalAGAgrolimen VenturesCRCredit Suisse+7 more

ZeroEntropy develops specialized machine learning models for search and retrieval-augmented generation (RAG) pipelines, offering rerankers, embeddings, and fine-tuned models for production AI systems.

AI & Machine LearningData & InfrastructureDeveloper ToolsEnterprise SoftwareSaaSSan Francisco, US

GHGhita Houir Alami(CEO)inNPNicholas Pipitone(CTO)inNicolas Pipitone(Founder)

Co-investorsENEntrepreneur FirstFOFounders FutureINInitialized CapitalKIKima VenturesLOLobster CapitalTRTranspose Platform Management+9 more

AI & Machine LearningEnterprise SoftwareSan Francisco, US

DBDaryl Budiman(Founder)inARAnirudh Ramprasad(Founder)in

Co-investorsFUFundersClubTRTranspose Platform ManagementTWTwenty Two Ventures

Zeroheight provides a centralized platform for managing design systems, enabling coordination between design tools and development teams to ensure consistent implementation and reference.

Developer ToolsEnterprise SoftwareMarketing TechSaaSLondon, GB

JDJerome de Lafargue(CEO)inRTRobin Tindale(Founder)in

BoardJHJonathan Hsu(Director)in

Co-investorsASAscensionENEntrepreneur FirstEXExpaFUFundersClubKAKayak VenturesKHKhosla Ventures+3 more

ZeroMailer provides tools for creating and managing mailing lists without technical complexity.

Enterprise SoftwareFuture of Work

JHJames Harvey(CEO)inYLYuran Lu(Founder)inSYShuang You(Founder)

Co-investorsAGAgrolimen Ventures

ZeroPath provides an application security platform that consolidates findings from multiple security scanning tools (SAST, SCA, IaC, secrets detection) into a unified dashboard with AI-driven risk scoring and prioritization for enterprise security teams.

AI & Machine LearningCybersecurityDeveloper ToolsEnterprise SoftwareSan Francisco, US

DVDean Valentine(Founder)inRKRaphael Karger(Founder)inELEtienne Lunetta(Founder)NHNathan Hrncirik(Director)

Co-investorsEIEight CapitalHOHOF CapitalOLOlive Tree CapitalSUSurgePoint AngelTRTranspose Platform ManagementAMAmerican Estate And Trust Inc+7 more

ZeroSettle provides subscription analytics, entitlements, A/B testing, and direct web checkout for iOS and Android app developers.

AI & Machine LearningFintechSaaSSan Diego, US

GRGabe Roeloffs(CEO)inRERyan Elliott(CTO)in

Co-investorsPAPalm Drive Capital

Zerostorefront Edge manufactures industrial data gateway hardware that secures local sensor data with end-to-end encryption and unifies SCADA network communication across multiple protocols (Modbus, DNP3, MQTT, OPC-UA) while maintaining sub-5ms latency.

CybersecurityEnterprise SoftwareHardwareIoTSaaSSan Francisco, US

CWCollin Wallace(CEO)inAJAshutosh Joshi(Founder)in

Co-investors50500 GlobalCACathexis VenturesKAKapor CapitalOVOVO FundULUlu Ventures

Zesty partners with mid-to-large offices to provide meals from local restaurants, with menus designed by in-house dietitians and delivery handled by its own catering staff.

Enterprise SoftwareMobility & TransportationSaaSSan Francisco, US

DLDavid Langer(CEO)inCHChris Hollindale(CTO)inKatherine van Ekert(Operations)in

Co-investors50500 GlobalFUFundersClubKUKube VCAGAgrolimen VenturesAVAvlok CapitalFJFJ Labs+15 more

ZETA Surgical makes a cranial navigation system for neurosurgical procedures including ventriculostomy, brain biopsy, and transcranial magnetic stimulation in operating rooms and interventional suites.

AI & Machine LearningDeep TechHealthtechMedical DevicesBoston, US

JMJose Maria Amich(CEO)inRSRaahil Sha(CTO)inDr. William Gormley(Co-founder)Jose Maria Amich Manero(Executive Officer, Director)Benjamin Lee(Vice President of Product)Hieu Le Mau(Director of Operations)

Co-investorsAIAirTree VenturesARArtesianBRBrincEMEmles Venture PartnersPAParticleTSTSVC+8 more

ZSCC designs AI silicon chips (XPU) optimized for energy efficiency in machine learning inference and training, targeting the infrastructure demands of recursive self-improvement and advanced AI systems.

Advanced ManufacturingAI & Machine LearningDeep TechSemiconductorsSan Francisco, US

EAElias Almqvist(CEO)inPRPrithvi Raj(CTO)in

Co-investorsFAFailup VenturesGEGeek VenturesOLOlive Tree CapitalWAWave VenturesANAndreessen HorowitzCACapitalize VC+8 more

Zeus provides property management software and services for corporate rental housing.

PropTechSan Francisco, US

KTKulveer Taggar(CEO)inSrini Panguluri(Founder)inJWJoe Wong(Founder)inOmar Seyal

Co-investorsALAlumni VenturesBEBee PartnersBLBloomberg BetaBOBowery CapitalCRCrystal Towers CapitalFLFloodgate+11 more

Zibral Labs builds distributed compute infrastructure that allocates CPUs and GPUs across multiple cloud providers for AI workloads.

AI & Machine LearningCloud ComputingData & InfrastructureEnterprise SoftwareSan Francisco, US

IRIbrahim Rabbani(CEO)inZPZac Policzer(CTO)in

Co-investorsHOHOF CapitalAGAgrolimen VenturesCACapitalize VCFOFounders FactoryHEHeavybitTETeam Ignite

Zidisha operates a direct person-to-person philanthropy platform that enables life-changing projects globally by connecting backers with entrepreneurs and project creators.

B2B MarketplacesFintechImpact & Social GoodMarketplacesSterling, US

JKJulia Kurnia(Director)in

Zigfu provides a plugin that enables developers to create applications for Microsoft Kinect motion-sensing devices.

ConsumerGamingSan Francisco, US

Ted Blackman(Founder)inAHAmir Hirsch(Founder)inRoee Shenberg(Founder)Shlomo Zippel(Founder)in

Ziina is a mobile payment platform operating in the UAE that enables businesses and individuals to send, receive, and accept contactless payments through iOS and Android devices.

FintechDubai, AE

STSarah Toukan(Founder)inAGAndrew Gold(Founder)inFTFaisal Toukan(Founder)inTTTalal Toukan(Engineer)inAbdelaali SADKI(Engineer)Jocelyn Meyer(People Lead)

Co-investorsACActivant CapitalAVAvenir Growth CapitalEXExpansion CapitalFJFJ LabsFLFlucas VenturesGRGraph Ventures+17 more

Zillabyte provides a cloud platform that handles infrastructure for data analysis applications, allowing users to develop apps locally and scale them on the company's servers; it offers modular components for tasks like geocoding and fraud detection, and supports analysis of private datasets or pre-built data sources including web content.

Developer ToolsEnterprise SoftwareSan Francisco, US

JQJake Quist(CEO)inPHPeter Harrington(Chief Scientist)inTNTyler Neylon(CTO)in

Co-investors50500 GlobalAGAgrolimen VenturesBOboldstart venturesFRFriedgan, Mark | Hubrix VenturesKEKEC VenturesMEMenlo Ventures+1 more

Zinc provides an API platform that enables developers to programmatically search products, place orders, track shipments, and handle returns across online retailers.

Developer ToolsE-commerceEnterprise SoftwareSaaSSan Francisco, US

DFDoug Feigelson(Founder)inJWJohn Wang(Chief Engineer)inMKMax KolyshinAdam Roberts(Head Of Sales)IJIan Janicki(CEO)inXiang Li(CEO)

Co-investorsATAtlantic Vantage PointATAtomicoAXAXA Venture PartnersGLGlobal VenturesLOLocalGlobe

Zinc provides software that integrates with mortgage lenders' systems to help borrowers purchase homeowners insurance as part of the mortgage closing process.

FintechInsurTechNew York City, US

SLSam Li(Founder)inRafael Telahun(CEO)

Co-investorsASAssure ServicesBOBoxGroupDODorm RoomFEFelicis VenturesFOFoundation CapitalGEGeneral Catalyst+5 more

Zingbus is a bus ticketing and transportation service operating across 500+ cities in 18+ states across North, West, and South India, offering online ticket bookings through its website and mobile app.

B2B MarketplacesConsumerMarketplacesMobility & TransportationTravel & HospitalityGurugram, IN

PKPrashant Kumar(Founder)inRVRavi Verma(Founder)inMBMratunjay Beniwal(Founder)in

Co-investorsADAdvantedge FoundersBEBetter CapitalC3C3 VenturesFUFundersClubPIPioneerSUSupermorpheus+5 more

Zip Phone provides voice calling services over internet connectivity, similar to how messaging apps deliver text communication online.

ConsumerSocial

AJAnuj Jain(CEO)in

ConsumerMarketplacesSocial

SMSanjay Mavinkurve(Founder)inVBVijay Boyapati(Founder)in

Zippi is a Brazilian financial services platform that provides small business owners with flexible credit lines accessible via mobile app and Pix payments, with weekly billing cycles and dynamic credit limits that grow with business performance.

Enterprise SoftwareFintechSaaSSão Paulo, BR

ABAndre Bernardes(Founder)inBLBruno Lucas(Founder)inLPLudmila Pontremolez(Founder)inDBDorian Bach(Creative Director)inAndré Kauffman ZolnerkevicGSGabriel Saruhashi(Product Manager)in

Co-investorsBEBeta VenturesFIFirst Check VenturesGRGrupo Globo - Mídia e ConteúdoHUHummingbird VenturesMAMantis CapitalMSMSA Novo+19 more

ZipX provides international package forwarding, giving members mailing addresses in worldwide locations so they can shop from online vendors abroad and have purchases consolidated, exported, and shipped to them.

ConsumerE-commerceFoodTechLogistics & Supply ChainNew York City, US

OMOsman Mendoza(CEO)inJSJames Steinberg(Managing Director)in

Zitara develops software solutions for battery management and monitoring, enabling companies to optimize battery safety, reliability, and performance across design and deployment.

Advanced ManufacturingAI & Machine LearningCleantechClimate TechEnergyIoTSaaSSan Francisco, US

SSShyam Srinivasan(Founder)inEMEvan Murphy(Founder)inPenelope Barcelo(Recruiter)Nikolai Christoffersen(Chief of Staff)Dan Foran(Head of Product)Jerry Miller(Head of Operations)

Co-investorsENEnergy Impact PartnersCHChevron Technology VenturesCLClimate CapitalSASalesforce VenturesCOCollaborative FundLILigo Partners LLC+11 more

Zoko integrates WhatsApp messaging capabilities with Shopify stores, allowing merchants to sell products, market to customers, and provide support through WhatsApp conversations.

AI & Machine LearningE-commerceEnterprise SoftwareSaaSBengaluru, IN

APArjun Paul(Founder)inAromal SivadasanJain Basil(Principal Architect)

Co-investorsCACallapina CapitalPIPioneerXEXeed VenturesISiSeedMUMusha VenturesUNUnpopular Ventures+2 more

Zoltar Labs develops an AI-powered customer experience tool that incorporates a company's own knowledge and data to assist with customer interactions.

Enterprise SoftwareSaaSNew York City, US

JKJensen Kuo(CEO)inJames Chen

Co-investorsINInitialized CapitalLILiquid VenturesSOSoma Capital

Zolvo provides AI-powered back-office automation for commercial lenders, automating invoice verification, collections, payment matching, and portfolio monitoring.

AI & Machine LearningEnterprise SoftwareFintechSan Francisco, US

IRIsabela Rodriguez(CEO)inTMTony Montes(CTO)in

Zomma Labs builds AI agents that automate repetitive work and system operations, enabling teams to focus on higher-value tasks.

AI & Machine LearningEnterprise SoftwareSaaSSan Francisco, US

VAVarun Arumugam(Founder)inCFCashel Fitzgerald(CTO)inJKJihyun Kim(Co-founder & CEO)in

Co-investorsVEVela PartnersLYLyra Capital Pty Ltd

Zoomer operates a delivery logistics platform that matches high-volume restaurants with independent drivers to fulfill food orders.

ConsumerFoodTechLogistics & Supply ChainPhiladelphia, US

JGJustin Goldman(CEO)inVEVasanth Elavarasan(Director of Engineering (Logistics))RSRobert Shedd(CTO)inCMCarolyn Mooney(Decision Analyst)inRORyan O'Neil(Head of Decision Engineering)in

Co-investorsFUFundersClubBOBoxGroupBRBrainchild HoldingsDCDCVC (Data Collective)FIFirst Round CapitalFOFoundation Capital+6 more

Zorba is an all-in-one platform for sourcing, renovating, leasing, and managing single-family rentals and build-to-rent properties.

AI & Machine LearningPropTechSaaSSaint Petersburg, US

OPOr Preiss(Founder)inKMKobi Mantzur(Founder)in

Co-investorsFRfresh.fundTATarget GlobalEMEmles AdvisorsGOGoodwater CapitalHEHeroic Ventures

ZowPow makes wireless game controllers that connect to mobile devices to enable console-like gaming experiences on phones and tablets.

ConsumerGamingHardwareSan Francisco, US

JBJennifer Bronzo(Founder)inBKBrian Krejcarek(Founder)in

zPREDICTA manufactures three-dimensional tissue culture models derived from patient samples that recreate human organ microenvironments for drug testing.

BiotechHealthtechSan Francisco, US

MPMukti Parikh(CTO)inJulia Kirshner(CEO)

Co-investorsGRGreat Oaks Venture Capital

Zuddl provides a unified platform for organizing and running webinars and events across virtual, hybrid, and in-person formats.

Enterprise SoftwareMarketing TechSaaSSan Francisco, US

BVBharath Varma(Founder)inVSVedha Sayyaparaju(Founder)inKomal Baid(Technical Recruiter)Sahiba Ali(People Acquisition Specialist)Danny Miroyan(Vice President of Global Sales)Madhav Vamsi(Advisor)

Co-investorsALAlpha Wave GlobalMEMerak VenturesQUQualcomm VenturesDADarkmode VenturesEVEveningGRgrowX Ventures+2 more

Zudo.work develops AI agents that automate customer support and claims operations for warranty administrators in the home and automotive sectors, integrating with phone systems and internal platforms to process claims, answer coverage questions, and issue authorizations.

AI & Machine LearningEnterprise SoftwareSaaSSan Francisco, US

AGAkash Gupta(Founder)inNikhil KulkarniAnirudh Gubba

Co-investorsKIKindred VenturesPIPioneerOROrange DAOUNUncommon Projects Capital Management

Zuma develops AI-powered automation software for property management companies, automating leasing operations tasks like scheduling tours and lead management.

AI & Machine LearningEnterprise SoftwarePropTechSaaSLos Angeles, US

SGShiv Gettu(Founder)inKBKendrick Bradley(Founder)in

Co-investorsANAndreessen HorowitzFEFelicis VenturesG G VenturesKIKing River CapitalPOPosition VenturesRARange VC+10 more

Zumo Labs creates synthetic training datasets for computer vision applications including autonomous vehicles, robotics, and security systems, offering an alternative to manual data collection and labeling.

AI & Machine LearningDeveloper ToolsEnterprise SoftwareSan Francisco, US

Norman Ponte(Founder)inEPElena Ponte(Founder)inHPHugo Ponte(Founder)inKSKory Stiger(Founder)inNorman PonteinKursad Karatas(Director of 3D Art and CGI)

Co-investorsBLBlack Mountain VentuesRORoyal Street Ventures Management Company, LlcAMAmino CapitalAMAmplify.LABLBlack Mountain Investment GroupOCOCA Ventures

ZumoDrive provides cloud-based storage and access to media files.

Enterprise SoftwareFuture of WorkSan Francisco, US

DZDavid Zhao(CEO)inKevin West(Founder)in

Co-investorsTATandem Capital

Zuni is a Chrome extension that provides AI assistance through a sidebar interface, using content from open browser tabs to help users compose messages and emails.

AI & Machine LearningEnterprise SoftwareFuture of WorkLondon, GB

GSGeorge Seabridge(Founder)inWTWill Taylorin

Zymbly is an AI copilot that assists aircraft maintenance technicians with troubleshooting, parts lookup, and documentation by searching across manuals, local procedures, and maintenance systems.

AI & Machine LearningEnterprise SoftwareLondon, GB

BJBen Jacob(CEO)inRBRobbie Bourke(Founder)inAHAzmat Habibullah(CTO)in

Co-investorsFIfirstminute capitalCACapitalize VCMAMatrixPAPageOne Lab, Inc.PHPhosphor Capital

Zynq provides a workspace management platform that helps companies coordinate office space usage, employee scheduling, and collaboration across hybrid work environments.

Enterprise SoftwareFuture of WorkSan Francisco, US

ZBZerzar Bukhari(Founder)inDCDavid Cottrell(Founder)inRameez Mahmood(Operations)

Co-investorsAJAJGTWTwenty Two Ventures

Zyper identifies a brand's most engaged social media followers and recruits them to create content and promote products within their own networks.

Enterprise SoftwareMarketing TechSan Francisco, US

AAAmber Atherton(Founder)inPhilip Thomas(Vice President Engineering)ZMZain Memon(Interim VP of Engineering)inRichard Hanson(Head of Data \u0026 Analytics)Talia Cirangle(Head of Marketing)Alexander Semien(Head of Operations)

Co-investorsFOForerunner VenturesTATalis Capital