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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
7,916
Total Invested
$61.9B
Average Investment
$11.1M

Y Combinator's Most Recent Investments (2020+)

Company NameFoundedFunding StageAmountCity
Prodigal2021Series A$12.0MMountain View
Nobell Foods2021Series B$75.0MSan Francisco
Thesis2021Series A$21.0MSan Francisco
Treble.ai2022Series A$15.0MSeattle
Shiok Meats2021Convertible Note$10.0MSingapore
Valora2021Series A$20.0MSan Francisco
Sidenote2023Pre-Seed$500KStanford
Atom Bioworks2022Grant$999KCary
Quotain2025Pre-Seed$500KNew York
P0x Labs2023Series A$25.0MBoston

Complete List of Y Combinator Portfolio Companies (7,916)

Export
#CompanyStageAmountLocation
501ProdigalSeries A$12.0MMountain View, United States
502Nobell FoodsSeries B$75.0MSan Francisco, United States
503ThesisSeries A$21.0MSan Francisco, United States
504Treble.aiSeries A$15.0MSeattle, United States
505Shiok MeatsConvertible Note$10.0MSingapore, Singapore
506ValoraSeries A$20.0MSan Francisco, United States
507SidenotePre-Seed$500KStanford, United States
508Atom BioworksGrant$999KCary, United States
509QuotainPre-Seed$500KNew York, United States
510P0x LabsSeries A$25.0MBoston, United States
Artificial Intelligence (AI)Consumer LendingFinanceMachine LearningNatural Language ProcessingSaaSSoftware

Agentic AI platform purpose-built for consumer finance, and trained on half a billion interactions across loan servicing and collections.

Mountain View, United States
July 2021
$12.0M
Series A

Founder Contacts

30,000+ verified contacts

Food and BeverageFood ProcessingNutrition

Nobell Foods uses plants to create innovative animal-based food substitutes.

San Francisco, United States
July 2021
$75.0M
Series B

Founder Contacts

30,000+ verified contacts

BitcoinCryptocurrencyFinancial Services

Thesis* is a Bitcoin venture studio funding and building decentralized products and protocols that enable personal empowerment.

San Francisco, United States
July 2021
$21.0M
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Marketing AutomationSaaSSoftware

Treble.ai is a software company that links businesses with mobile-first users worldwide.

Seattle, United States
July 2022
$15.0M
Series A

Founder Contacts

30,000+ verified contacts

Alternative ProteinFood ProcessingOrganic FoodSeafood

Shiok Meats is a cellular aquaculture and cell-based meat company.

Singapore, Singapore
July 2021
$10.0M
Convertible Note

Founder Contacts

30,000+ verified contacts

BlockchainFinancial ServicesFinTechMobile PaymentsWeb3

Valora is a mobile wallet that allows you to send, save, and spend crypto as easily as sending a text

San Francisco, United States
July 2021
$20.0M
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Productivity ToolsSoftwareTask Management

Sidenote is an AI tool that identifies tasks from meeting notes and schedules them, bridging the gap between meetings and task management.

Stanford, United States
July 2023
$500K
Pre-Seed

Founder Contacts

30,000+ verified contacts

BiotechnologyHealth CareMedicalTherapeutics

Atom Bioworks is a developer of a pattern-recognition enabled sensing and therapeutics platform designed to help in medical.

Cary, United States
July 2022
$999K
Grant

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)SalesSales Enablement

Quotain helps sales teams practice the calls they actually need to win with realistic AI buyers.

New York, United States
July 2025
$500K
Pre-Seed

Founder Contacts

30,000+ verified contacts

BlockchainCryptocurrencyInformation Technology

P0x Labs is the team behind Manta Network is a privacy-preserving technology operating on the Polkadot blockchain.

Boston, United States
July 2023
$25.0M
Series A

Founder Contacts

30,000+ verified contacts

Information TechnologySoftware

Strac is the DSPM and Data Loss Prevention (DLP) platform that discovers, and protects sensitive data across SaaS, Cloud, Gen AI & Endpoints

Washington, United States
July 2022
$3.5M
Seed

Founder Contacts

30,000+ verified contacts

EducationEmployee BenefitsHuman ResourcesSoftware

Brite Benefits is benefits education software designed for benefits brokers.

Salt Lake City, United States
July 2022
$7.8M
Series A

Founder Contacts

30,000+ verified contacts

AccountingArtificial Intelligence (AI)B2BFinancial ServicesSoftware

Document and spreadsheet automation for accountants

Austin, United States
July 2022
$500K
Pre-Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)BiotechnologyHealth CareMedical

Persephone Biosciences uses artificial intelligence to rapidly develop microbial based immunotherapies to enable a lifetime without cancer.

San Diego, United States
July 2022
$15.0M
Seed

Founder Contacts

30,000+ verified contacts

Air TransportationDeveloper APIsReservationsSaaSSoftwareTravel

Building software to remove friction in air travel

Bellevue, United States
July 2022
$25.0M
Series A

Founder Contacts

30,000+ verified contacts

BiopharmaBiotechnologyHealth Care

Seed develops clinically-studied probiotics to impact human and planetary health.

Venice, United States
July 2022
$925K
Undisclosed

Founder Contacts

30,000+ verified contacts

BankingFinTechMobile AppsMobile Payments

Bloom is a financial technology company that provides innovative, fair, responsible and inclusive financial products.

London, United Kingdom
July 2022
$6.5M
Seed

Founder Contacts

30,000+ verified contacts

Health CareMedicalVeterinary

One Health Company specializes in transforming canine cancer care through AI-driven precision medicine.

Palo Alto, United States
July 2022
Venture - Series Unknown

Founder Contacts

30,000+ verified contacts

CRMHuman ResourcesMarketplaceRecruitingSoftware

Dover provides an integrated hiring platform that connects organizations with fractional recruiters through a marketplace.

San Francisco, United States
July 2021
$20.0M
Series A

Founder Contacts

30,000+ verified contacts

InternetSoftwareTelecommunications

Oxio is a connectivity platform for the internet that changes the way people connect with their internet service provider (ISP).

Quebec, Canada
July 2021
$19.6M
Series A

Founder Contacts

30,000+ verified contacts

BlockchainCryptocurrencyWeb3

Fluent Labs is a blockchain development company.

California City, United States
July 2025
$2.2M
Seed

Founder Contacts

30,000+ verified contacts

Clean EnergyCleanTechEnergyEnergy StorageNuclear

MoltexFLEX is developing the advanced small modular FLEX reactor and GridReserve energy storage system.

Warrington, United Kingdom
July 2023
$1.7M
Grant

Founder Contacts

30,000+ verified contacts

EmploymentEnterprise SoftwareHuman ResourcesRecruiting

HireArt is a single platform to hire, employ, and manage a contract workforce.

New York, United States
July 2022
$26.3M
Series B

Founder Contacts

30,000+ verified contacts

BlockchainFinTechTransaction Processing

Sunscreen is a cryptography company that translates frontier Fully Homomorphic Encryption (FHE) research into production-ready tooling.

San Francisco, United States
July 2022
$4.7M
Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Cloud InfrastructureSoftware

Blaxel is a cloud infrastructure to deploy and scale AI agents.

San Francisco, United States
July 2025
$7.3M
Seed

Founder Contacts

30,000+ verified contacts

Showing 501-525 of 7,916 portfolio companies

Frequently Asked Questions About Y Combinator

How many companies has Y Combinator invested in?

Y Combinator has invested in 7,916 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), Blockchain, Health Care, SaaS. The firm invests across 57 different industry categories.

What is Y Combinator's largest investment?

Among tracked funding rounds, Nobell Foods received $75.0M in a Series B round. Y Combinator's total known invested capital is $61.9B.

What is the average investment size for Y Combinator?

Y Combinator's average investment size is $11.1M across its portfolio of 7,916 companies.

What are Y Combinator's most recent investments?

Recent Y Combinator portfolio additions include Prodigal, Nobell Foods, Thesis, Treble.ai, Shiok Meats. These companies were founded in 2020 or later.

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