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Y Combinator — Portfolio, Page 223

Investor actively backing innovative startups and growth-stage companies across various industries and funding rounds.

8,084
Companies
$44.9B
Total invested
$8.2M
Avg. check
40
Industries
Artificial Intelligence (AI) 14Information Technology 6Software 6B2B 4Health Care 4Internet 4+34 more
Founder contacts

Verified emails & LinkedIn for founders across this portfolio.

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Portfolio companies

Showing 5329–5352 of 8,084
HealthKey
March 2025

HealthKey provides AI-powered tools to summarize medical records, generate diagnoses, and streamline healthcare workflows.

Artificial Intelligence (AI) · Austin$500K Pre-Seed
Amby Health
March 2025

Amby Health improves emergency medical services (EMS) by automating quality reviews and billing.

Health Care · San Francisco$500K Pre-Seed
Nuclear Software
March 2025

Nuclear Software serves as a continuous integration platform tailored for engineering simulations within complex industries.

Aerospace · San Francisco$500K Pre-Seed
Vora AI
March 2025

Vora supplies each hiring manager with an artificial intelligence-powered recruiting assistant.

B2B · San Francisco$500K Pre-Seed
GradeWiz
March 2025

GradeWiz is an AI tool that helps teachers create rubrics, grade assignments, and provide feedback.

Artificial Intelligence (AI) · Ithaca$500K Pre-Seed
Astro Energy
March 2025

Astro buys land for renewable energy projects, secures low-cost grid connections, and sells these projects to larger energy companies.

Energy · New York$500K Pre-Seed
Misprint
March 2025

Misprint is a marketplace for trading card collectors and investors.

Collectibles$500K Pre-Seed
Roark
March 2025

Roark makes it easy to track, assess, and enhance speech AI agents over time.

Analytics · San Francisco$500K Pre-Seed
TrainLoop
March 2025

TrainLoop can assist developers in improving DeepSeek-R1 and other reasoning models.

Information Technology · San Francisco$500K Pre-Seed
Lopus AI
March 2025

Lopus AI is an AI-powered insights and automation that generates prospects using social media posts to capture leads.

Artificial Intelligence (AI) · San Francisco$500K Pre-Seed
Osmosis AI
March 2025

Osmosis enables real-time reinforcement learning for AI agents.

Artificial Intelligence (AI) · San Francisco$500K Seed
Red Barn Robotics
March 2025

Red Barn Robotics provides development of autonomous weeding robots to remove weeds from farms.

AgTech · Seattle$500K Pre-Seed
General Agency
March 2025

General Agency specializes in the development of AI coworkers that possess the ability to learn and function like humans.

Artificial Intelligence (AI) · San Francisco$500K Pre-Seed
Wildcard
March 2025

Wildcard functions as a gateway that enables AI agents to identify and employ APIs using natural language.

Artificial Intelligence (AI) · San Francisco$500K Pre-Seed
assistant-ui
March 2025

assistant-ui software development company that provides app developers with AI chat programs that can be added to the apps.

Apps · San Francisco$500K Pre-Seed
G LNK
March 2025

G LNK is an AI-powered platform that collaborates between health care organization and professionals for drug development.

Artificial Intelligence (AI) · New York$500K Pre-Seed
nunu.ai
March 2025

nunu.ai is the frontier of artificial intelligence in gaming by creating the first multi-modal AI agents designed to test and play any game.

Artificial Intelligence (AI) · San Francisco$6.0M Seed
A1Base
March 2025

A1Base functions as the communication, trust, and identity framework for AI agents, aimed at enhancing interactions with human users.

Artificial Intelligence (AI) · San Francisco$500K Pre-Seed
Onyx
March 2025

Open source Enterprise Search & AI agents

Generative AI · San Francisco$10.0M Seed
Dollyglot
March 2025

Dollyglot is like Character.ai, but with real-time video avatars that transforms a photo and a voice into a lifelike friend.

Generative AI · San Francisco$500K Pre-Seed
Excellence Learning
March 2025

Excellence Learning is an AI driven online platform that assists students in learning math and science.

Artificial Intelligence (AI) · Stanford$500K Pre-Seed
Augento
March 2025

Augento is a Robotics Engineering company that provides turn key solution to cstomers.

Artificial Intelligence (AI) · San Francisco$500K Pre-Seed
Vocality Health
March 2025

Vocality Health is a Voice AI platform for medical language translation, enhancing communication in healthcare.

Artificial Intelligence (AI)$500K Pre-Seed
Subtrace
March 2025

Subtrace empowers developers to effortlessly monitor all production requests with just one command

Developer Tools · San Francisco$500K Pre-Seed

Where Y Combinator invests

Artificial Intelligence (AI)14
Information Technology6
Software6
B2B4
Health Care4
Internet4

About Y Combinator's portfolio

How many companies has Y Combinator invested in?▸

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.

What industries does Y Combinator invest in?▸

Y Combinator's top investment sectors include Artificial Intelligence (AI), Information Technology, Software, B2B, Health Care. The firm invests across 40 different industry categories.

What is Y Combinator's largest investment?▸

Among tracked funding rounds, Onyx received $10.0M in a Seed round. Y Combinator's total known invested capital is $44.9B.

What is the average investment size for Y Combinator?▸

Y Combinator's average investment size is $8.2M across its portfolio of 8,084 companies.

What are Y Combinator's most recent investments?▸

Recent Y Combinator portfolio additions include HealthKey, Amby Health, Nuclear Software, Vora AI, GradeWiz. These companies were founded in 2020 or later.

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