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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
IMTC2025Series A$12.0MNew York
Aditto2024Pre-Seed$500KSan Francisco
BrowserBook2024Pre-Seed$500KNew York
Codebuff2024Pre-Seed$500KSan Francisco
Platus2024Pre-Seed$500KSan Francisco
Bramble2024Pre-Seed$500KSan Francisco
PearAI2024Pre-Seed$500KSan Francisco
Circlemind2024Seed$500KSan Francisco
Andoria2024Pre-Seed$500KSan Francisco
Necto2023Seed$8.0MNew York

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

Export
#CompanyStageAmountLocation
1201IMTCSeries A$12.0MNew York, United States
1202AdittoPre-Seed$500KSan Francisco, United States
1203BrowserBookPre-Seed$500KNew York, United States
1204CodebuffPre-Seed$500KSan Francisco, United States
1205PlatusPre-Seed$500KSan Francisco, United States
1206BramblePre-Seed$500KSan Francisco, United States
1207PearAIPre-Seed$500KSan Francisco, United States
1208CirclemindSeed$500KSan Francisco, United States
1209AndoriaPre-Seed$500KSan Francisco, United States
1210NectoSeed$8.0MNew York, United States
Cloud InfrastructureFinancial ServicesFinTechSaaSTrading Platform

IMTC provides a cloud-native platform for fixed-income investment management.

New York, United States
December 2025
$12.0M
Series A

Founder Contacts

30,000+ verified contacts

AdvertisingArtificial Intelligence (AI)Marketing

Aditto enables scalable AI-driven ad and landing page creation, allowing daily launches to capture growth opportunities instantly.

San Francisco, United States
December 2024
$500K
Pre-Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)B2BDeveloper Tools

The Browser Automation IDE

New York, United States
December 2024
$500K
Pre-Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Enterprise SoftwareSoftware

Codebuff is a coding agent that edits codebases, runs terminal commands, and boosts productivity

San Francisco, United States
December 2024
$500K
Pre-Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)B2BLegal Tech

Platus offers no-code legal tools and APIs, helping SMBs streamline notarization, drafting, and compliance tasks.

San Francisco, United States
December 2024
$500K
Pre-Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Property DevelopmentReal EstateReal Estate Brokerage

Bramble is an AI-powered real estate brokerage firm that provides end-to-end homebuying services for a simple flat fee.

San Francisco, United States
December 2024
$500K
Pre-Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Open SourceSoftware

PearAI is an open-source, AI-powered code editor that integrates AI tools to streamline development.

San Francisco, United States
December 2024
$500K
Pre-Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Generative AISaaS

Circle Mind deploys open-source RAG using knowledge graphs and PageRank.

San Francisco, United States
December 2024
$500K
Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Machine LearningSoftware

Andoria is an AI automation platform for businesses to automate manual and repetitive tasks on the web.

San Francisco, United States
December 2024
$500K
Pre-Seed

Founder Contacts

30,000+ verified contacts

Financial ServicesSoftware

Necto platform harnesses the power of next generation, API driven bank connectivity.

New York, United States
December 2023
$8.0M
Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Big DataEnterprise SoftwareGamingInternetMachine LearningSoftware

Spectrum Labs is a technology company that helps build a safer internet through AI content moderation.

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

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)ConsumerInformation TechnologyiOSMobile AppsProductivity ToolsSoftware

Iris is an AI assistant that automates workflows and manages time by combining calendar and inbox data.

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

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Information TechnologyMachine LearningNatural Language ProcessingProductivity ToolsSaaS

Caddy offers a voice-controlled AI that integrates with work applications to perform tasks and automate workflows.

Wilmington, United States
December 2025
$500K
Pre-Seed

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)RoboticsSmart Home

Piggy Robotics is a robotics company that builds humanoid robots using artificial muscles in order to mass-produce the robots.

Southampton, United Kingdom
December 2025
$500K
Pre-Seed

Founder Contacts

30,000+ verified contacts

Food and BeverageSoftware

Crafty is a leading national provider of office food and beverage programs powered through an innovative, centralized platform.

Chicago, United States
December 2025
$1.0M
Convertible Note

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)B2BBusiness Process Automation (BPA)Enterprise ApplicationsInformation TechnologyWeb Apps

Casey automates the preparation and submission of commercial insurance proposals by ingesting client data.

Dover, United States
December 2025
$500K
Pre-Seed

Founder Contacts

30,000+ verified contacts

Developer ToolsInformation TechnologySoftware

Inspector is an AI IDE for front end engineers that allows to modify styles, move elements, and automatically reflect changes in codebase.

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

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Business Process Automation (BPA)Enterprise ApplicationsInformation TechnologyMachine LearningReal TimeSaaSWeb Apps

Mantle automates back-office tasks by connecting to CRMs, email, payments, and analytics through prompt-based agents.

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

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Information TechnologyRecruitingWeb Apps

Fixpoint offers a platform to manage annotators and automate data processes for AI model training through APIs.

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

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)EducationMachine Learning

Hillclimb advances AGI by building math-focused reinforcement learning environments with top mathematicians for high-quality data.

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

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)EmploymentHuman ResourcesInformation TechnologyRecruitingWeb Apps

Hire Glide offers an AI platform that ranks applicants against job descriptions and sources pre-assessed candidates for hiring.

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

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)LogisticsRetailRobotic Process Automation (RPA)SoftwareTransportation

Prox is an AI-powered logistics platform automating freight booking, claims, POD collection, and billing for logistics providers.

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

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)B2BInformation TechnologyMachine LearningNatural Language ProcessingReal TimeSaaSSoftwareSpeech Recognition

Aside provides an AI platform that helps sales teams with live call prompts, note-taking, and real-time insights.

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

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)Machine LearningRobotics

Spatial AI is an Ai driven company that offers data infrastructure robots.

Palo Alto, United States
December 2025
$500K
Pre-Seed

Founder Contacts

30,000+ verified contacts

Browser ExtensionsDeveloper PlatformDeveloper ToolsInformation Technology

JSX Tool is a browser-based IDE and extension that helps developers to inspect, edit, and generate React component code.

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

Founder Contacts

30,000+ verified contacts

Showing 1201-1225 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, Machine Learning, SaaS. The firm invests across 46 different industry categories.

What is Y Combinator's largest investment?

Among tracked funding rounds, Spectrum Labs received $32.0M in a Series B 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 IMTC, Aditto, BrowserBook, Codebuff, Platus. These companies were founded in 2020 or later.

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