Y Combinator (YC)

Funding rounds backed by Y Combinator (YC).

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Funding disclosed in full
$6.1B
Median round
$20.5M
Rounds in calculation
102
104 rounds
LatestLargest
Funding rounds with company descriptions, amounts, stages and announcement dates
CompanyRoundMarketInvestorsAnnouncedDetails
Metriport

Open-source healthcare data infrastructure unifying patient records for clinicians

$26MSeries AHealthtechUnited States
3 participantsARTISMatrixY Combinator (YC)
Arintra

AI platform automating medical coding and revenue assurance for health systems

$25MSeries BHealthtechUnited States
8 participantsCounterpart VenturesDefine VenturesEndeavor Health VenturesPeak XV PartnersSpider CapitalTen13Yale New Haven Health Center for Health Care InnovationY Combinator (YC)
Multiplier

Builds AI agent harnesses for asset managers' proprietary research and data

$6MSeedFintechUnited States
14 participantsAmino CapitalGeneral AdvanceGoAhead VenturesGreg JensenJasjeet SekhonKaren Karniol-TambourKaz NejatianLux CapitalMercator PartnersPete BrigerRebel FundSandeep NailwalUnpopular VenturesY Combinator (YC)
Apollo Atomics

MIT spinoff building factory-built compact pressurized water reactors

$31MSeedClimate techUnited States
13 participantsAlumni VenturesDuke Capital PartnersEvan MeagherFCVCMatteo FranceschettiNucleation CapitalPaul GrahamPelion VCPhilip JohnstonRay RothrockRobinhood VenturesTelesoft PartnersY Combinator (YC)
Blacksmith

Cloud infrastructure for validating and testing AI-generated code faster

$45MSeries BDeveloper toolsUnited States
3 participantsGV (Google Ventures)Peak XV PartnersY Combinator (YC)
River AI

Builds infrastructure for training and serving personally trainable AI agents

$1.1BSeed+Series AAIUnited States
6 participantsAMD VenturesAMP PBCGeneral CatalystNVIDIATemasekY Combinator (YC)
Axle

AI-native clearinghouse automating insurance verification and policy workflows

$17.5MSeries AFintechUnited States
4 participantsBase10 PartnersGradientStage 2 CapitalY Combinator (YC)
Discovered Materials

Builds AI agents that discover and accelerate new materials for semiconductor chips

$9MSeedAIUnited States
6 participantsGokul RajaramLightspeed India PartnersPaul GrahamPeak XV PartnersThariq ShihiparY Combinator (YC)
Naïve

Provides infrastructure for AI agents to automate company setup and operations

$28.5MSeries ADeveloper toolsUnited States
10 participantsGert LanckrietGokul RajaramJD ShermanLiquid 2Nexus Venture PartnersRobert ChatwaniTim ZhengY Combinator (YC)Zachary SimsZetta
Isengard Industries

Builds precision strike and counter-UAS systems for allied militaries

UndisclosedStrategicDefense techUnited States
5 participantsA3 Management GroupBackswing VenturesSerra-de Estrela Investments LtdSterling RoadY Combinator (YC)
HappyRobot

Deploys AI agents automating enterprise operations across voice, email and documents

$150MSeries CAIUnited States
12 participantsAndreessen Horowitz (a16z)BankinterBase10Endeavor CatalystEurazeoKfundKoch Disruptive TechnologiesOrangePrysm CapitalT.CapitalWave-XY Combinator (YC)
Terminal

Provider of unified telematics integration technology transforming operations across insurance, fleet management and logistics companies

$20MSeries AFintechCanada
8 participantsBattery VenturesGolden VenturesIntact Private CapitalMcVestCo (Trimac Transportation)Northside VenturesPenskeWayfinder VenturesY Combinator (YC)
Centralize

Relationship intelligence platform for enterprise revenue teams

$19MSeed+Enterprise softwareUnited States
8 participants20SALESAdverb VenturesNew Enterprise Associates (NEA)Ritual CapitalSalesforce VenturesScott WoodyStewart ButterfieldY Combinator (YC)
Henry AI

AI platform automating back-office knowledge work for commercial real estate teams

$16.5MSeries AProptechUnited States
10 participants1SharpeCoalition OperatorsFirstMark CapitalKarman VenturesPioneer FundRXR Arden Digital VenturesStoryHouse VenturesSusa VenturesThomson Reuters VenturesY Combinator (YC)
Array Labs

Building a new way to understand the physical world

$21MStrategicSpace techUnited States
5 participantsCatapult VenturesKompas VCMitsubishi ElectricWashington Harbour PartnersY Combinator (YC)
Healia

Healia is a healthcare benefits platform built for dual-income families.

$14MSeries AFintechUnited States
6 participants111° West CapitalFirst Round CapitalGoAhead VenturesNorth Coast VenturesPioneer FundY Combinator (YC)
Scape

Intelligent email inbox that prepares work proactively

$3.2MSeedDeveloper toolsSweden
7 participantsFundersClubGeneral CatalystJacob Wallenberg jr.Max JunestrandSebastian KnutssonSophia BendzY Combinator (YC)
telli

AI startup automating customer-facing operations with AI agents

$15MSeedAIGermany
4 participantsCherry VenturesMutschler Ventures AGRedalpineY Combinator (YC)
Candid Health

Automates the financial infrastructure of American healthcare

$120MSeries DHealthtechUnited States
4 participants8VCOak HC/FTSixth Street GrowthY Combinator (YC)
Emergent

AI software creation platform for building full-stack, production-ready web and mobile applications

$130MSeries CEnterprise softwareIndia
7 participantsCreaegisKhosla VenturesLightspeedMNI Ventures - Claypond CapitalSentinel GlobalSoftBank Vision Fund 2Y Combinator (YC)
Bunkerhill Health

Bunkerhill Health builds an agentic AI platform for health systems to turn their ideas into reality

$25MSeries BHealthtechUnited States
5 participantsFelicisKhosla VenturesOptum VenturesSequoia CapitalY Combinator (YC)
Hadrius

Hadrius provides an AI-native compliance infrastructure for financial services firms

$27MSeed+Series AEnterprise softwareUnited States
3 participantsCRVPathlight VenturesY Combinator (YC)
Singularity

Building a safer world by deploying low-cost air defense systems at scale

$80MSeries ADefense techUnited States
12 participantsAE VenturesDecisive PointFelicisHarpoonKhosla VenturesLong JourneyMenlo VenturesNew Enterprise Associates (NEA)New VistaSomaSunflowerY Combinator (YC)
Ollama

Makes open models effortless to use for developers

$65MSeries BAIUnited States
7 participants49 Palms8VCBenchmarkGTMfundPace CapitalTheory VenturesY Combinator (YC)
Finto

Builds AI agents for autonomous accounting tasks

$3.4MSeedFintechGermany
6 participantsGradientJürgen KlöpfferLightspeedLukas DeutschMichael FelixY Combinator (YC)
Fleek

Develops AI infrastructure for secondhand clothing industry

$25MSeries BEcommerceUnited Kingdom
7 participantsAndreessen Horowitz (a16z)Burda Principal InvestmentseBayFJ LabsH14HV CapitalY Combinator (YC)
Agave

Automates accounting and back-office work for construction contractors using AI

$15MSeries AProptechUnited States
2 participantsAccelY Combinator (YC)
Sazabi

AI-native observability platform for fast-moving engineering teams

$8MSeedAIUnited States
4 participantsJ2 VenturesOrange CollectiveVillage GlobalY Combinator (YC)
Coval

Provides evaluation platform for voice AI quality

$28MSeries AAIUnited States
4 participantsBase10 PartnersNorwestTwilio VenturesY Combinator (YC)
Taktile

Enables financial institutions to automate and optimize decisions with AI

$110MSeries CFintechUnited States
6 participantsBalderton CapitalDig VenturesGrowth Equity at Goldman Sachs AlternativesIndex VenturesTiger GlobalY Combinator (YC)