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Y Combinator Portfolio Companies

Investor actively backing innovative startups and growth-stage companies across various industries and funding rounds.

Last updated: July 2026

Y Combinator Investment Overview

Portfolio Companies
7,960
Total Invested
$25.5B
Average Investment
$9.2M

Y Combinator's Most Recent Investments (2020+)

Company NameFoundedFunding StageAmountCity
Quary2023Pre-Seed$500KLondon
Byterat2023Seed$4.0MSan Francisco
Keywords AI2023Pre-Seed$500KSan Francisco
Faction2023Seed$6.0MSouth San Francisco
Upfort2023Series A$8.0MSan Francisco
TrustClarity2023Pre-Seed$100KChicago
Giga ML2023Seed$3.6MSan Francisco
Biocogniv2023Venture - Series Unknown$5.0MBurlington
Tiptap2023Seed$2.6MBerlin
Bluebirds2023Seed$5.0MSan Francisco

Complete List of Y Combinator Portfolio Companies (7,960)

Export
#CompanyStageAmountLocation
3051QuaryPre-Seed$500KLondon, United Kingdom
3052ByteratSeed$4.0MSan Francisco, United States
3053Keywords AIPre-Seed$500KSan Francisco, United States
3054FactionSeed$6.0MSouth San Francisco, United States
3055UpfortSeries A$8.0MSan Francisco, United States
3056TrustClarityPre-Seed$100KChicago, United States
3057Giga MLSeed$3.6MSan Francisco, United States
3058BiocognivVenture - Series Unknown$5.0MBurlington, United States
3059TiptapSeed$2.6MBerlin, Germany
3060BluebirdsSeed$5.0MSan Francisco, United States
B2BData ManagementSaaS

Accessible data transformations

London, United Kingdom
October 2023
$500K
Pre-Seed

Founder Contacts

30,000+ verified contacts

BatterySoftwareTest and Measurement

Byterat is a modern cloud platform for battery data analytics.

San Francisco, United States
October 2023
$4.0M
Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)B2BDeveloper ToolsSaaS

LLM observability, prompt management, and evals for AI engineering teams.

San Francisco, United States
October 2023
$500K
Pre-Seed

Founder Contacts

30,000+ verified contacts

AutomotiveAutonomous VehiclesLogisticsRide SharingRoboticsSoftwareTransportation

Faction is a software company that develops driverless solutions based on light electric vehicles.

South San Francisco, United States
October 2023
$6.0M
Seed

Founder Contacts

30,000+ verified contacts

Cyber SecurityInsuranceInsurTechNetwork SecuritySecurity

Upfort is a cyber security and insurance platform that offers comprehensive protection against evolving cyber threats.

San Francisco, United States
October 2023
$8.0M
Series A

Founder Contacts

30,000+ verified contacts

E-CommerceEnergyMarketplaceSaaSSoftwareTelecommunications

AI Powered Online Outlet Store for Excess Inventory

Chicago, United States
October 2023
$100K
Pre-Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)B2CSoftware

Giga ML provides AI customer service agents for enterprises.

San Francisco, United States
October 2023
$3.6M
Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Health CareMachine LearningMedical Device

Upgrade your clinical operations with real-time AI

Burlington, United States
October 2023
$5.0M
Venture - Series Unknown

Founder Contacts

30,000+ verified contacts

AppsInformation TechnologySoftware

Tiptap is the developer toolkit for building collaborative apps.

Berlin, Germany
October 2023
$2.6M
Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)DatabaseLead Generation

Bluebirds is an AI-based data platform to find customer contacts that switched jobs.

San Francisco, United States
October 2023
$5.0M
Seed

Founder Contacts

30,000+ verified contacts

CreditCredit BureauData IntegrationFinancial ServicesFinTech

Nova Credit is a credit infrastructure and analytics company that enables businesses to grow responsibly through alternative credit data.

San Francisco, United States
October 2023
$45.0M
Series C

Founder Contacts

30,000+ verified contacts

Financial ServicesFinTechInternetLeasingLendingProductivity Tools

Nexu is a financing platform for Latin American car dealerships.

Mexico City, Mexico
October 2023
$20.0M
Series B

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Health DiagnosticsMachine LearningMedicalNeuroscience

Darmiyan has developed the first AI-powered software platform for early detection, monitoring, and stratification of Alzheimer's disease.

San Francisco, United States
October 2023
$3.5M
Venture - Series Unknown

Founder Contacts

30,000+ verified contacts

Building MaintenanceProperty ManagementReal Estate

Banner provides an operating system that helps CRE owners deliver projects on-time and on-budget.

San Francisco, United States
October 2023
$10.0M
Series A

Founder Contacts

30,000+ verified contacts

eSportsGamingVideo Games

Players' Lounge is a real money gaming platform built for popular video games. Gamers can wager on their own performance or stake others.

Brooklyn, United States
October 2023
$750K
Venture - Series Unknown

Founder Contacts

30,000+ verified contacts

EnergyEnergy EfficiencyEnergy ManagementSoftware

Elyos Energy is a software platform for energy optimization, flexibility, and demand response.

London, United Kingdom
October 2023
$3.0M
Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)SecuritySoftware

Deasie is a startup that creates tools to give businesses more control over text-generating AI models.

San Francisco, United States
October 2023
$2.9M
Seed

Founder Contacts

30,000+ verified contacts

AudioMusicSoftware

Music Software Development Company

Nashville, United States
October 2023
$1.0M
Seed

Founder Contacts

30,000+ verified contacts

AnalyticsBlockchainCryptocurrencyFinancial ServicesFinTech

Parsec Finance is a DeFi and analytics platform focused on technical analysis for traders and datap-focused users.

Concord, United States
October 2023
$4.0M
Seed

Founder Contacts

30,000+ verified contacts

BiotechnologyHealth Care

Rejuvenation Technologies is a biotechnology company that developed nucleoside-modified TERT mRNA to safely and rapidly extend telomeres.

Mountain View, United States
October 2023
Venture - Series Unknown

Founder Contacts

30,000+ verified contacts

B2BHealth CareSaaSSoftware

SpecCheck is a cloud-based software that provides unified technology solutions for the optical industry.

San Francisco, United States
October 2023
$3.7M
Seed

Founder Contacts

30,000+ verified contacts

FinanceFinancial ServicesMarketing

RQD Clearing provides custody and execution solutions for market.

New York, United States
October 2023
$10.0M
Series A

Founder Contacts

30,000+ verified contacts

B2BIdentity ManagementInformation TechnologyPrivacySaaSSoftware

Rownd is a B2B SaaS frictionless authentication company.

Raleigh, United States
October 2023
Seed

Founder Contacts

30,000+ verified contacts

SecuritySoftware

We're creating a secure future where service providers are the leading force against the global cybercrime epidemic.

Mckinney, United States
October 2023
$5.2M
Seed

Founder Contacts

30,000+ verified contacts

FinTechMobile PaymentsVirtual CurrencyWeb3

Instant global payments & invoicing. Eliminate delays and fees. Pay vendors and contractors with stablecoin-based payments.

New York, United States
October 2023
Seed

Founder Contacts

30,000+ verified contacts

Showing 3051-3075 of 7,960 portfolio companies

Frequently Asked Questions About Y Combinator

How many companies has Y Combinator invested in?

Y Combinator has invested in 7,960 companies tracked in our database. The portfolio spans multiple industries and funding stages, from seed-stage startups to late-stage companies.

What industries does Y Combinator invest in?

Y Combinator's top investment sectors include Software, Artificial Intelligence (AI), SaaS, B2B, Financial Services. The firm invests across 64 different industry categories.

What is Y Combinator's largest investment?

Among tracked funding rounds, Nova Credit received $45.0M in a Series C round. Y Combinator's total known invested capital is $25.5B.

What is the average investment size for Y Combinator?

Y Combinator's average investment size is $9.2M across its portfolio of 7,960 companies.

What are Y Combinator's most recent investments?

Recent Y Combinator portfolio additions include Quary, Byterat, Keywords AI, Faction, Upfort. These companies were founded in 2020 or later.

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