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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
ianacare2022Series A$3.0MBoston
Asseta AI2025Seed$4.2MNew York
Occosoft LLC2023Series A$185KAustin
Arey2022Seed$4.2MLos Angeles
Craft.co2022Series B$32.0MSan Francisco
Racket2021Pre-Seed$3.0MLos Angeles
Tenet2023Debt Financing$20.0MNew York
Transcend Street Solutions2023Venture - Series UnknownUndisclosedPiscataway
RoadRunner Recycling2022Series D$20.0MPittsburgh
Lumen Research2022Seed$3.5MLondon

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

Export
#CompanyStageAmountLocation
1351ianacareSeries A$3.0MBoston, United States
1352Asseta AISeed$4.2MNew York, United States
1353Occosoft LLCSeries A$185KAustin, United States
1354AreySeed$4.2MLos Angeles, United States
1355Craft.coSeries B$32.0MSan Francisco, United States
1356RacketPre-Seed$3.0MLos Angeles, United States
1357TenetDebt Financing$20.0MNew York, United States
1358Transcend Street SolutionsVenture - Series UnknownUndisclosedPiscataway, United States
1359RoadRunner RecyclingSeries D$20.0MPittsburgh, United States
1360Lumen ResearchSeed$3.5MLondon, United Kingdom
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

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

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

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

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

AutomotiveFinTechInformation TechnologyLendingMarketplace

Tenet is the leading EV lending marketplace partnering with banks, credit unions, and governments to accelerate electric vehicle adoption.

New York, United States
November 2023
$20.0M
Debt Financing

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

RecyclingSustainabilityWaste Management

RoadRunner Recycling is a provider of a data-driven waste management platform for commercial waste recycling.

Pittsburgh, United States
November 2022
$20.0M
Series D

Founder Contacts

30,000+ verified contacts

AdvertisingMarketingMarket Research

Lumen is a specialist eye tracking research agency based in London, who help optimise advertising across a number of platforms.

London, United Kingdom
November 2022
$3.5M
Seed

Founder Contacts

30,000+ verified contacts

AnalyticsArtificial Intelligence (AI)Information TechnologyMachine Learning

FanAI is an AI-driven audience monetization platform.

Arcadia, United States
November 2021
$3.0M
Series A

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Content CreatorsInfrastructureMedia and EntertainmentSoftwareVideo

Narrative is the AI video processing infrastructure, enabling agents to understand and process video as easily as they do text.

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

Founder Contacts

30,000+ verified contacts

Assisted LivingHome Health CarePersonal Health

Making finding home care easier, safer and more affordable.

Saskatoon, Canada
November 2025
$641K
Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)B2BMachine LearningNatural Language ProcessingSaaS

Athina is an IDE that lets teams prototype, experiment and evaluate AI

San Francisco, United States
November 2024
$3.0M
Seed

Founder Contacts

30,000+ verified contacts

BlockchainCryptocurrency

Quasar Labs brings permissionless, non-custodial asset management to DeFi using IBC.

Madrid, Spain
January 2023
$5.4M
Seed

Founder Contacts

30,000+ verified contacts

BlockchainDeveloper ToolsWeb3

Seismic is a blockchain that uses stablecoins to deliver financial services with better rates than traditional fintech platforms.

New York, United States
November 2025
$10.0M
Venture - Series Unknown

Founder Contacts

30,000+ verified contacts

Advanced MaterialsCleanTechElectric VehicleGreen BuildingGreenTechRenewable EnergySmart BuildingSmart CitiesSmart HomeWater

Cycle Momentum offers acceleration and open innovation programs dedicated to the clean technology ecosystem.

Montréal, Canada
November 2024
$800K
Grant

Founder Contacts

30,000+ verified contacts

FinTechInternetMarketplace

LÜK Network is a fintech-enabled B2B marketplace for the advertising industry.

Los Angeles, United States
November 2022
$4.3M
Undisclosed

Founder Contacts

30,000+ verified contacts

Communications InfrastructureInformation TechnologyManagement ConsultingManagement Information SystemsMessagingProductivity ToolsReal TimeSaaSSoftwareVirtual Workforce

When I Work is an employee scheduling and time tracking platform designed for shift-based teams.

Minneapolis, United States
November 2021
$200.0M
Private Equity

Founder Contacts

30,000+ verified contacts

AdvertisingArtificial Intelligence (AI)MarketingSEO

Relixir is AI Generative Engine Optimization (GEO) assistant that maps, monitors and improves AI search rankings.

San Francisco, United States
November 2025
$2.0M
Seed

Founder Contacts

30,000+ verified contacts

AppsAudioInformation Technology

Audiences is a client-cloud-native application that provides 1st-party audiences to advertising and marketing their brands.

London, United Kingdom
November 2025
$2.8M
Seed

Founder Contacts

30,000+ verified contacts

Health CareHospitalMedical

Mount Sinai Health System delivers integrated medical care, research, and medical education through its network.

New York, United States
November 2024
$7.0M
Grant

Founder Contacts

30,000+ verified contacts

BlockchainCryptocurrencyDecentralized Finance (DeFi)Developer PlatformE-Commerce PlatformsSmart ContractsSoftware

Agoric provides a framework for programming smart contracts securely and with ease, beyond anything available today.

San Francisco, United States
November 2021
$32.0M
Initial Coin Offering

Founder Contacts

30,000+ verified contacts

BlockchainCryptocurrencyFinancial Services

Saddle Finance is an automated market maker (AMM) optimized for pegged value crypto assets.

San Francisco, United States
November 2021
$7.5M
Series A

Founder Contacts

30,000+ verified contacts

Information TechnologyLogisticsSupply Chain Management

MotoristaPX is a digital recruiting company that offers hiring services for trucks.

Joinville, Brazil
November 2025
$47.2M
Series B

Founder Contacts

30,000+ verified contacts

Showing 1351-1375 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), Information Technology, Blockchain, Financial Services, FinTech. The firm invests across 73 different industry categories.

What is Y Combinator's largest investment?

Among tracked funding rounds, When I Work received $200.0M in a Private Equity 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 ianacare, Asseta AI, Occosoft LLC, Arey, Craft.co. These companies were founded in 2020 or later.

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