Investor actively backing innovative startups and growth-stage companies across various industries and funding rounds.
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Halluminate provides realistic sandboxes and datasets to help model labs and enterprises train frontier computer and browser use agents.
Riverbank Security delivers autonomous AI‑driven penetration testing and offensive security, combining AI agents with expert red teamers.
Meteor presents itself as an agentic browser that understands pages, suggests actions, and automates tasks with a single click.
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Replacing forms with AI conversations
Design Arena is an AI-generated design platform that provides frontend interfaces to images, video, and audio.
Locata provides an AI-powered referral management system for primary care providers.
Fleetline develops a data-driven algorithm load planner for mid to large-sized trucking fleets.
Ambral is an AI-driven solution designed to enhance account management for B2B businesses.
Fluidize offers AI-powered SaaS for automating and managing scientific simulation workflows.
CoCreate automates video backup, syncing, proxy creation, and clip organization for editing in major platforms.
Lotas builds an AI-powered coding assistant that can read, write, and edit files in RStudio.
Keystone is an AI-native testing platform that helps developers build, maintain, and run end-to-end tests at scale.
Metis is an AI based research oriented firm offering AI agents for digital work tasks.
Palace offers a platform that organizes private capital data, automates checks, tracks tasks, and streamlines portfolio workflows.
Rid is a platform that sells items by simply texting a picture and description.
Stockline is an IT internet firm offering AI based ERP for food wholesalers to reduce admin tasks.
Socratix AI offers autonomous AI agents designed to serve as enterprise-grade fraud and risk analysts.
Stellon Labs develops tiny AI models designed to run on edge devices.
VibeFlow transforms prompts into web applications by generating and visualizing backend logic via AI‑powered visual workflow editing.
Topological develops physics-based foundation models that optimize CAD design by generating manufacturable, physics-aware models.
Induction Labs builds foundation AI models that learn from human-computer interactions to execute tasks autonomously.
BootLoop enables AI agents to write, test, and debug firmware directly on the intended hardware.
Qualify.bot is an AI loan onboarding platform tailored for commercial loan brokers and lenders.
Y Combinator has invested in 8,084 companies tracked in our database. The portfolio spans multiple industries and funding stages, from seed-stage startups to late-stage companies.
Y Combinator's top investment sectors include Artificial Intelligence (AI), Software, SaaS, Information Technology, B2B. The firm invests across 38 different industry categories.
Among tracked funding rounds, Metal received $5.0M in a Seed round. Y Combinator's total known invested capital is $44.9B.
Y Combinator's average investment size is $8.2M across its portfolio of 8,084 companies.
Recent Y Combinator portfolio additions include Halluminates, Riverbank, Meteor, Metal, RowFlow. These companies were founded in 2020 or later.