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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
Pharos2025Grant$100KSan Francisco
2222025Series A$10.1MLos Angeles
Lemon Slice2025Seed$10.5MSan Francisco
Ishiki Labs2025Pre-Seed$500KSan Francisco
MOM Meal of the Moment2025Series A$5.8MMumbai
Lemma2025Pre-Seed$500KSan Francisco
Aravolta2025Seed$5.1MSan Francisco
Fleek2025Series BUndisclosedSan Francisco
Castari2025Pre-Seed$500KSan Francisco
Feanix Biotechnologies2025Seed$5.3MDavis

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

Export
#CompanyStageAmountLocation
1601PharosGrant$100KSan Francisco, United States
1602222Series A$10.1MLos Angeles, United States
1603Lemon SliceSeed$10.5MSan Francisco, United States
1604Ishiki LabsPre-Seed$500KSan Francisco, United States
1605MOM Meal of the MomentSeries A$5.8MMumbai, India
1606LemmaPre-Seed$500KSan Francisco, United States
1607AravoltaSeed$5.1MSan Francisco, United States
1608FleekSeries BUndisclosedSan Francisco, United States
1609CastariPre-Seed$500KSan Francisco, United States
1610Feanix BiotechnologiesSeed$5.3MDavis, United States
Artificial Intelligence (AI)Health CareWellness

Pharos is a Hospitals and Health Care tech that helps with quality reporting without any manual chart review.

San Francisco, United States
December 2025
$100K
Grant

Founder Contacts

30,000+ verified contacts

Information TechnologySocial MediaSocial Network

222 is a social app that gives opportunity for its users to connect and meet new people, discover the city, and deepen their relationships.

Los Angeles, United States
December 2025
$10.1M
Series A

Founder Contacts

30,000+ verified contacts

Communications InfrastructureInformation TechnologyTranslation Service

Lemonslice provides translation and localization services for businesses to adapt content across multiple languages and markets.

San Francisco, United States
December 2025
$10.5M
Seed

Founder Contacts

30,000+ verified contacts

Building the future of multimodal AI

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

Founder Contacts

30,000+ verified contacts

E-CommerceFood and BeverageService Industry

MOM Meal of the Moment provides home style instant meals.

Mumbai, India
December 2025
$5.8M
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)B2BDeveloper ToolsInformation TechnologyInfrastructureMachine LearningSaaSTask ManagementWeb Apps

Lemma offers an AI platform that automates prompt optimization and continuous learning for model improvement.

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

Founder Contacts

30,000+ verified contacts

Data ManagementInformation TechnologyProductivity ToolsSoftware

Aravolta provides software that helps data center operators monitor, control, and manage complex infrastructure through a unified platform.

San Francisco, United States
December 2025
$5.1M
Seed

Founder Contacts

30,000+ verified contacts

B2BE-CommerceFashionMarketplace

A B2B Marketplace for Wholesale Second Hand Fashion

San Francisco, United States
December 2025
Series B

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)B2BDeveloper ToolsInfrastructureSoftware

Castari is a software development company that build, deploy, and scale sandboxed AI agents.

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

Founder Contacts

30,000+ verified contacts

BiotechnologyClinical TrialsGenetics

Feanix Biotechnologies is a genetic laboratory for testing samples.

Davis, United States
December 2025
$5.3M
Seed

Founder Contacts

30,000+ verified contacts

Decentralized Finance (DeFi)TelecommunicationsWireless

DAWN Internet builds a decentralized, user-owned broadband network that lets people share and earn from local internet connectivity.

New York, United States
December 2025
$13.0M
Series B

Founder Contacts

30,000+ verified contacts

Software

Caretta is a sales‑enablement application that works during sales calls to assist revenue teams.

Delft, The Netherlands
December 2025
$1.3M
Pre-Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)ConsultingMachine LearningWealth Management

FINNY is an AI-powered prospecting and marketing platform that helps financial advisors identify and connect with potential clients.

New York, United States
December 2025
$17.0M
Series A

Founder Contacts

30,000+ verified contacts

FinTechMobile Apps

Monet is an application that allows people to advance their income through their mobile phones.

Bogotá, Colombia
December 2025
$24.0M
Series A

Founder Contacts

30,000+ verified contacts

B2BDeveloper ToolsOpen SourceSoftware

Trigger.dev is a coding tool for automating complex workflows.

London, United Kingdom
December 2025
$16.0M
Series A

Founder Contacts

30,000+ verified contacts

Information TechnologyInternet

ETHGas is a marketplace for Ethereum blockspace commitments.

December 2025
$12.0M
Seed

Founder Contacts

30,000+ verified contacts

Nanotechnology

Nfinite Nanotechnology develops a nanocoating technology that enables the fabrication of devices such as photovoltaics, and batteries.

Waterloo, Canada
December 2025
$2.8M
Grant

Founder Contacts

30,000+ verified contacts

ConsumerGamingMarketplaceOnline PortalsToys

Miniswap offers a marketplace for tabletop wargaming miniatures.

San Francisco, United States
December 2025
$3.5M
Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Consumer SoftwareHealth CareMedicalPersonal Health

Lucis provides a health technology platform focused on biological age measurement using advanced diagnostics and data analysis.

Artannes-sur-indre, France
December 2025
$8.5M
Seed

Founder Contacts

30,000+ verified contacts

GamingInformation TechnologyInternetMarketplaceSoftware

High-quality PC games in the browser

San Francisco, United States
December 2025
$3.8M
Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)SoftwareWeb Development

NavierAI develops artificial intelligence software that accelerates engineering simulations and design workflows.

San Francisco, United States
December 2025
$5.6M
Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Cloud ComputingEnterprise Software

3e Technology has built a cloud platform for friendly neighbors around the concept of “Neighboring,Friendly, and Smart Life'".

Guangzhou, China
December 2025
$1.4M
Post Ipo Debt

Founder Contacts

30,000+ verified contacts

ArchitectureCivil EngineeringConstructionReal Estate

Pirros is a detail management system for architects and engineers.

Los Angeles, United States
December 2025
$15.0M
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Computer VisionGenerative AIKnowledge ManagementMachine Learning

Pryon is an enterprise knowledge management platform designed to simplify and accelerate the adoption of artificial intelligence.

Raleigh, United States
December 2025
Convertible Note

Founder Contacts

30,000+ verified contacts

AppsArtificial Intelligence (AI)Developer ToolsSoftware

Vybe is a software company that provides pre-built integrations and AI tools for users to develop and launch internal AI-powered apps.

San Francisco, United States
December 2025
$10.0M
Seed

Founder Contacts

30,000+ verified contacts

Showing 1601-1625 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, Developer Tools. The firm invests across 54 different industry categories.

What is Y Combinator's largest investment?

Among tracked funding rounds, Monet received $24.0M in a Series A 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 Pharos, 222, Lemon Slice, Ishiki Labs, MOM Meal of the Moment. These companies were founded in 2020 or later.

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