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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
5,185
Total Invested
$33.2B
Average Investment
$11.7M

Y Combinator's Most Recent Investments (2020+)

Company NameFoundedFunding StageAmountCity
Fifth Door2025Seed$20.0MSan Francisco
Coval2025SeedUndisclosedSan Francisco
besimple AI2025Seed$3.0MRedwood City
Morphle Labs2025Series A$5.0MBangalore
Cerrion2025Series A$18.0MZürich
Model ML2025Series A$75.0MNew York
Maritime Fusion2025Seed$4.5MSan Francisco
Pibit2025Series A$7.0MPalo Alto
Clado2025Seed$2.0MSan Francisco
Bluma2025Pre-Seed$500KSan Francisco

Complete List of Y Combinator Portfolio Companies (5,185)

Export
#CompanyStageAmountLocation
1726Fifth DoorSeed$20.0MSan Francisco, United States
1727CovalSeedUndisclosedSan Francisco, United States
1728besimple AISeed$3.0MRedwood City, United States
1729Morphle LabsSeries A$5.0MBangalore, India
1730CerrionSeries A$18.0MZürich, Switzerland
1731Model MLSeries A$75.0MNew York, United States
1732Maritime FusionSeed$4.5MSan Francisco, United States
1733PibitSeries A$7.0MPalo Alto, United States
1734CladoSeed$2.0MSan Francisco, United States
1735BlumaPre-Seed$500KSan Francisco, United States
Casual GamesGamingOnline Games

Fifth Door is a next-generation game platform that enables you to bring your game online in just minutes.

San Francisco, United States
November 2025
$20.0M
Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)B2BDeveloper Tools

Coval is a simulation and evaluation platform for AI agents, enabling engineers to deploy reliable assistants across chat and modalities.

San Francisco, United States
November 2025
Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Data ManagementSoftware

besimple AI is a software company that provides AI-based data annotation infrastructure designed for model training.

Redwood City, United States
November 2025
$3.0M
Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Health CareHealth DiagnosticsMedical DeviceRoboticsSoftware

Morphle Labs is a deep-tech healthcare automation company that develops robotic and imaging systems for cancer diagnostics.

Bangalore, India
November 2025
$5.0M
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Industrial AutomationInformation TechnologyMachine LearningSoftware

Cerrion is an AI software company that develops computer vision technology to generate production insights.

Zürich, Switzerland
November 2025
$18.0M
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)B2BFinancial ServicesFinTechMachine Learning

Model ML provides AI tools that automate tedious tasks in finance, enabling firms to process deals and models more efficiently.

New York, United States
November 2025
$75.0M
Series A

Founder Contacts

30,000+ verified contacts

EnergyFuelNuclear

Maritime Fusion specializes in the development and construction of high-temperature superconducting fusion reactors.

San Francisco, United States
November 2025
$4.5M
Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Commercial InsuranceInsuranceInsurTechSoftware

Enhance Underwriting Decisions with Accurate Loss Run Insights

Palo Alto, United States
November 2025
$7.0M
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)B2BRecruitingSaaS

Clado is a company that provides artificial intelligence solutions for business applications.

San Francisco, United States
November 2025
$2.0M
Seed

Founder Contacts

30,000+ verified contacts

AdvertisingArtificial Intelligence (AI)MarketingSocial MediaSoftwareVideo

Bluma is an AI-native platform that automatically creates viral short-form ads for your business using our library of templates.

San Francisco, United States
November 2025
$500K
Pre-Seed

Founder Contacts

30,000+ verified contacts

ConsultingInformation TechnologySoftware

Tailor is a no-code headless ERP platform helping retail businesses unify tools, marketplaces, and teams on one system.

Tokyo, Japan
November 2025
$15.0M
Series A

Founder Contacts

30,000+ verified contacts

InfrastructureLogisticsSupply Chain ManagementTransportation

Agraga is a comprehensive digital logistics platform that connects asset holders to make cross-border logistics easier.

Alwarpet, India
November 2025
$11.3M
Series B

Founder Contacts

30,000+ verified contacts

Information TechnologyMedicalSoftware

Ember Copilot is a Software Development firm offering a tool to reduces medical claim denials.

San Francisco, United States
November 2025
$4.3M
Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Cloud StorageData Storage

Poly is an artificial intelligence company that offers a platform for personal cloud storage.

San Francisco, United States
November 2025
$8.0M
Seed

Founder Contacts

30,000+ verified contacts

Cloud InfrastructureSaaSSatellite Communication

Quindar offers a one-stop shop in the cloud for spacecraft analysis and operations.

Washington, United States
November 2025
$18.0M
Series A

Founder Contacts

30,000+ verified contacts

AutomotiveAutonomous VehiclesE-Commerce

Carvana is an e-commerce platform that buys and sells used cars.

Tempe, United States
November 2025
$99.0M
Post Ipo Debt

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Developer ToolsRobotic Process Automation (RPA)

Automat offers robotic process automation for Chrome using GPT4 and computer vision.

San Francisco, United States
November 2025
$15.5M
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Health CarePharmaceutical

Cellbyte is an AI based firm that offers safety and security standards for pharma companies to provide life-changing treatments to patients.

München, Germany
November 2025
$2.8M
Seed

Founder Contacts

30,000+ verified contacts

Advertising PlatformsArtificial Intelligence (AI)Content CreatorsSoftware

Agentio is an AI-native advertising platform that automates the end-to-end process for creator advertising.

New York, United States
November 2025
$40.0M
Series B

Founder Contacts

30,000+ verified contacts

B2BManufacturingProcurementSoftwareSupply Chain Management

Source parts. Fast, hassle-free, and cost-efficient.

Tel Aviv, Israel
November 2025
$12.1M
Series A

Founder Contacts

30,000+ verified contacts

Cloud Computing

See cloud costs & FinOps best practices before deployment with Infracost: Shift FinOps left.

San Diego, United States
November 2025
$18.8M
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Developer PlatformDeveloper ToolsInformation TechnologyMachine LearningSaaSSoftware

Luminal provides a machine learning compiler and serverless cloud platform that automates PyTorch model optimization and deployment.

San Francisco, United States
November 2025
$5.3M
Seed

Founder Contacts

30,000+ verified contacts

EnergyInternet of ThingsPower GridSoftware

Gridware is a grid‑technology company dedicated to improving safety and reliability on the electrical transmission and distribution systems.

San Francisco, United States
November 2025
$55.0M
Series B

Founder Contacts

30,000+ verified contacts

AppsDocument ManagementInformation TechnologyVoIP

Voize is a voice assistant that converts caregivers’ spoken documentation into structured entries through a mobile app.

Berlin, Germany
November 2025
$49.8M
Series A

Founder Contacts

30,000+ verified contacts

AccountingArtificial Intelligence (AI)FinanceFinancial ServicesFinTechReal EstateSaaSWealth Management

Asseta AI provides financial management tools for family offices and investments.

New York, United States
November 2025
$4.2M
Seed

Founder Contacts

30,000+ verified contacts

Showing 1726-1750 of 5,185 portfolio companies

Frequently Asked Questions About Y Combinator

How many companies has Y Combinator invested in?

Y Combinator has invested in 5,185 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 Artificial Intelligence (AI), Software, Information Technology, B2B, SaaS. The firm invests across 59 different industry categories.

What is Y Combinator's largest investment?

Among tracked funding rounds, Carvana received $99.0M in a Post Ipo Debt round. Y Combinator's total known invested capital is $33.2B.

What is the average investment size for Y Combinator?

Y Combinator's average investment size is $11.7M across its portfolio of 5,185 companies.

What are Y Combinator's most recent investments?

Recent Y Combinator portfolio additions include Fifth Door, Coval, besimple AI, Morphle Labs, Cerrion. These companies were founded in 2020 or later.

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