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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
HistoWiz2021Series A$32.3MBrooklyn
DELV2021Series A$32.0MNorth Richland Hills
Light Protocol2022Seed$4.5MLisbon
Producer.ai (formerly Riffusion)2023Seed$4.0MSan Francisco
Passiv2022Seed$2.2MFredericton
Tapio Protocol2022Seed$4.0MSingapore
Addition Wealth2024Grant$36KNew York
Polkadot2024Secondary MarketUndisclosedZug
Alchemy2024Seed$31.0MSan Francisco
Shopscribe2021Seed$1.1MLondon

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

Export
#CompanyStageAmountLocation
1426HistoWizSeries A$32.3MBrooklyn, United States
1427DELVSeries A$32.0MNorth Richland Hills, United States
1428Light ProtocolSeed$4.5MLisbon, Portugal
1429Producer.ai (formerly Riffusion)Seed$4.0MSan Francisco, United States
1430PassivSeed$2.2MFredericton, Canada
1431Tapio ProtocolSeed$4.0MSingapore, Singapore
1432Addition WealthGrant$36KNew York, United States
1433PolkadotSecondary MarketUndisclosedZug, Switzerland
1434AlchemySeed$31.0MSan Francisco, United States
1435ShopscribeSeed$1.1MLondon, United Kingdom
Artificial Intelligence (AI)BiotechnologyLife ScienceMedicalPharmaceutical

HistoWiz provides automated histopathology for biomedical researchers.

Brooklyn, United States
October 2021
$32.3M
Series A

Founder Contacts

30,000+ verified contacts

BlockchainDecentralized Finance (DeFi)FinanceFinancial ServicesInternet

New Protocols for New Markets

North Richland Hills, United States
October 2021
$32.0M
Series A

Founder Contacts

30,000+ verified contacts

BlockchainCryptocurrency

Light Protocol is a zero-knowledge infrastructure protocol for the Solana Blockchain.

Lisbon, Portugal
October 2022
$4.5M
Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Music

Producer.ai (formerly Riffusion) allows users to make short music clips with AI-generated vocals.

San Francisco, United States
October 2023
$4.0M
Seed

Founder Contacts

30,000+ verified contacts

CryptocurrencyFinancial ServicesFinTechImpact InvestingPersonal FinanceSoftwareWealth Management

Wealth automation for self-directed investors. Manage all your investments from a single dashboard and leave the tedious things to Passiv.

Fredericton, Canada
October 2022
$2.2M
Seed

Founder Contacts

30,000+ verified contacts

BlockchainCryptocurrencyFinTech

Tapio Protocol is a synthetic asset protocol that unifies different formats of staking and crowdloan derivatives into an efficient standard.

Singapore, Singapore
October 2022
$4.0M
Seed

Founder Contacts

30,000+ verified contacts

Financial ServicesFinTech

Addition Wealth is a holistic financial wellness platform that empowers employees to make smart, informed financial decisions.

New York, United States
October 2024
$36K
Grant

Founder Contacts

30,000+ verified contacts

AppsBlockchainCrowdfundingInformation ServicesInformation TechnologyWeb3

Polkadot is a heterogeneous multi‑chain technology that allows independent blockchains to exchange information.

Zug, Switzerland
October 2024
Secondary Market

Founder Contacts

30,000+ verified contacts

Health CareHealth DiagnosticsPharmaceutical

Alchemy creates and implements clinical pharmacy programs and deploys technology products that use the pharmacy.

San Francisco, United States
October 2024
$31.0M
Seed

Founder Contacts

30,000+ verified contacts

E-CommerceE-Commerce PlatformsInternetSubscription Service

Shopscribe provides subscriptions for their products and services.

London, United Kingdom
October 2021
$1.1M
Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Health CareHospital

Altitude is the AI-powered platform for the clinical workforce.

Carmel, United States
October 2025
$6.9M
Seed

Founder Contacts

30,000+ verified contacts

E-CommerceFinanceFinancial ServicesFinTechMarketplace

HamsaPay is the world's first Smart, X-Border Trade DeFi Network leveraging blockchain technology.

San Francisco, United States
October 2024
Series A

Founder Contacts

30,000+ verified contacts

Building MaterialConstruction

Concretene is a concrete alternative that is designed to provide a viable CO2 reduction technology in the construction industry.

Manchester, United Kingdom
October 2024
$3.9M
Seed

Founder Contacts

30,000+ verified contacts

Human ResourcesRecruiting

HoyTrabajas is a recruitment platform that provides talent acquisition services for businesses and connects companies with candidates.

Bogotá, Colombia
October 2022
$5.0M
Seed

Founder Contacts

30,000+ verified contacts

AgricultureFarmingFood and Beverage

Smallhold is a farming technology company that provides automated, modular remotely-managed, and subscription-based growing systems.

Brooklyn, United States
October 2021
$25.0M
Series A

Founder Contacts

30,000+ verified contacts

DeliveryDronesLogistics

Volansi is a developer of logistics solutions through autonomous drone deliveries that facilitate long range, time-critical shipments.

Concord, United States
October 2023
Secondary Market

Founder Contacts

30,000+ verified contacts

Health CareMedicalMental HealthWellness

Chitozan Health focuses on infection control, healthcare, skincare, environmental health, and agriculture.

Jacksonville, United States
October 2023
Non-equity Assistance

Founder Contacts

30,000+ verified contacts

Information TechnologyProductivity ToolsSoftware

ContainIQ is a Kubernetes native monitoring and tracing platform.

Hoboken, United States
October 2021
$2.5M
Seed

Founder Contacts

30,000+ verified contacts

BiotechnologyFood and BeverageHealth Care

Supplant is a biotechnology platform that makes sugar substitutes.

Cambridge, United Kingdom
October 2021
$18.0M
Series A

Founder Contacts

30,000+ verified contacts

BankingCryptocurrencyFinancial ServicesFinTech

Juno is a cross-border neo-banking platform that aims to give users across the world a high-yield account to grow their savings.

Singapore, Singapore
October 2022
$18.0M
Series A

Founder Contacts

30,000+ verified contacts

AccountingAppsSoftware

Keeper makes software to help bookkeepers manage their clients' back-office.

Austin, United States
October 2021
$2.0M
Seed

Founder Contacts

30,000+ verified contacts

AppsB2BDeveloper APIs

Stipop offers messaging, video, and profile stickers for apps intended to enrich online communication.

Los Angeles, United States
October 2021
Seed

Founder Contacts

30,000+ verified contacts

BlockchainCryptocurrency

Derisk is a crypto custody infra and leverages Multi-Party Computation (MPC) cryptography.

Seattle, United States
October 2022
$1.0M
Pre-Seed

Founder Contacts

30,000+ verified contacts

Real Estate

Humming Homes is an AI Powered Home Manager, bringing ease to all of your home service needs.

New York, United States
October 2021
$8.2M
Seed

Founder Contacts

30,000+ verified contacts

Health CareInformation TechnologymHealthSoftware

CareSync is the leading provider of software and services for chronic disease management.

New York, United States
October 2025
$650K
Series A

Founder Contacts

30,000+ verified contacts

Showing 1426-1450 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 Blockchain, Financial Services, Cryptocurrency, FinTech, Health Care. The firm invests across 48 different industry categories.

What is Y Combinator's largest investment?

Among tracked funding rounds, HistoWiz received $32.3M 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 HistoWiz, DELV, Light Protocol, Producer.ai (formerly Riffusion), Passiv. These companies were founded in 2020 or later.

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