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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
$44.2B
Average Investment
$8.1M

Y Combinator's Most Recent Investments (2020+)

Company NameFoundedFunding StageAmountCity
Alyaum2024Seed$29.5MKita
ianacare2022Series A$3.0MBoston
Asseta AI2025Seed$4.2MNew York
Luminal2025Seed$5.3MSan Francisco
Reelables2025Series A$10.4MLondon
Gridware2025Series B$55.0MSan Francisco
voize2025Series A$49.9MBerlin
Plotdrive2022Seed$6.0MLos Angeles
Airtrain AI2022Seed$3.2MSan Francisco
Sandbox Banking2022Seed$4.3MCambridge

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

Export
#CompanyStageAmountLocation
3976AlyaumSeed$29.5MKita, Japan
3977ianacareSeries A$3.0MBoston, United States
3978Asseta AISeed$4.2MNew York, United States
3979LuminalSeed$5.3MSan Francisco, United States
3980ReelablesSeries A$10.4MLondon, United Kingdom
3981GridwareSeries B$55.0MSan Francisco, United States
3982voizeSeries A$49.9MBerlin, Germany
3983PlotdriveSeed$6.0MLos Angeles, United States
3984Airtrain AISeed$3.2MSan Francisco, United States
3985Sandbox BankingSeed$4.3MCambridge, United States
CommunitiesFinancial ServicesGovernmentNon-Fungible Token (NFT)

Alyaum provides solutions for hometown tax payment NFT and tourism NFT technology services for government and communities.

Kita, Japan
November 2024
$29.5M
Seed

Founder Contacts

30,000+ verified contacts

FitnessHealth CareWellness

ianacare is on a mission to encourage, empower, and equip family caregivers.

Boston, United States
November 2022
$3.0M
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

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

Reelables is automating supply chains and inventory management with cellular and Bluetooth smart labels.

London, United Kingdom
November 2025
$10.4M
Series A

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
$49.9M
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)BooksEnterprise SoftwareSoftware

Plotdrive is long-form writing infrastructure that lets authors finish books and scripts 5-10x faster without losing their voice.

Los Angeles, United States
November 2022
$6.0M
Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Cloud InfrastructureDeveloper ToolsMachine Learning

Airtrain AI is an AI data platform that specializes in data curation, fine-tuning, and evaluation for LLMs.

San Francisco, United States
November 2022
$3.2M
Seed

Founder Contacts

30,000+ verified contacts

BankingData IntegrationFinancial ServicesFinTechInnovation Management

Sandbox Banking develops a banking platform that connects new fintech software to existing systems.

Cambridge, United States
November 2022
$4.3M
Seed

Founder Contacts

30,000+ verified contacts

GamingInformation TechnologySoftwareVideo Games

DreamCraft is a platform that allows anyone to create, publish and monetize games without coding.

San Mateo, United States
November 2021
$10.0M
Series A

Founder Contacts

30,000+ verified contacts

BiopharmaHealth CareTherapeutics

Intact Therapeutics is a makers of smart gels for local drug delivery for gastrointestinal diseases.

Palo Alto, United States
November 2021
Series A

Founder Contacts

30,000+ verified contacts

Marketplace

Carupi is a managed peer to peer marketplace for used cars.

São Paulo, Brazil
November 2021
Series A

Founder Contacts

30,000+ verified contacts

Occosoft: Unlock infinite opportunities and elevate your business to new heights with our innovative solutions.

Austin, United States
November 2023
$185K
Series A

Founder Contacts

30,000+ verified contacts

BiotechnologyHealth DiagnosticsTherapeutics

Serinus Biosciences develops technologies to understand how chemicals work inside malignant tumor cells.

New York, United States
November 2023
$150K
Venture - Series Unknown

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)ComputerSoftware

SigmaOS is an AI-powered browser that helps users work faster with intelligent tabs, built-in assistants, and productivity tools.

London, United Kingdom
November 2022
$4.0M
Seed

Founder Contacts

30,000+ verified contacts

AnalyticsBusiness IntelligenceInformation ServicesSupply Chain Management

Helping supply chain and procurement professionals discover, evaluate, and monitor suppliers to create stronger supply chain resilience.

San Francisco, United States
November 2022
$32.0M
Series B

Founder Contacts

30,000+ verified contacts

BeautyE-Commerce

Arey is a functional beauty brand with a proactive and science-driven approach, with a specific focus on grey hair.

Los Angeles, United States
November 2022
$4.2M
Seed

Founder Contacts

30,000+ verified contacts

AnalyticsDeveloper APIsHealth CaremHealthPredictive Analytics

Ribbon Health is a predictive analytics and data platform for the healthcare industry.

New York, United States
November 2021
$43.5M
Series B

Founder Contacts

30,000+ verified contacts

CoworkingRental PropertySoftware

Deskimo is a desk booking app that provides remote workforce access to desk space.

Singapore, Singapore
November 2021
Seed

Founder Contacts

30,000+ verified contacts

AudioInternet RadioPodcastSocial Media

Racket develops an audio recorder platform designed to share audio content on the internet.

Los Angeles, United States
November 2021
$3.0M
Pre-Seed

Founder Contacts

30,000+ verified contacts

ConsultingFinancial ServicesFinTech

Moneco is a financial application that aims to provide financial products.

Halles, France
November 2025
Seed

Founder Contacts

30,000+ verified contacts

Big DataCyber SecurityData VisualizationInformation TechnologyNatural Language ProcessingSaaS

Overwatch Data is a SaaS platform that assists businesses in monitoring data streams for real-world events that affect their operations.

Brooklyn, United States
November 2024
Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Developer ToolsSEOSoftware

Next-Gen API Documentation with AI Brilliance. Generate Stripe-like API docs in just a few seconds

San Francisco, United States
November 2023
Venture - Series Unknown

Founder Contacts

30,000+ verified contacts

Financial Services

Transcend Street Solutions is a leading provider of optimization solutions for collateralized businesses.

Piscataway, United States
November 2023
Venture - Series Unknown

Founder Contacts

30,000+ verified contacts

Showing 3976-4000 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), Financial Services, Information Technology, Health Care. The firm invests across 60 different industry categories.

What is Y Combinator's largest investment?

Among tracked funding rounds, Gridware received $55.0M in a Series B round. Y Combinator's total known invested capital is $44.2B.

What is the average investment size for Y Combinator?

Y Combinator's average investment size is $8.1M across its portfolio of 7,960 companies.

What are Y Combinator's most recent investments?

Recent Y Combinator portfolio additions include Alyaum, ianacare, Asseta AI, Luminal, Reelables. These companies were founded in 2020 or later.

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