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Y Combinator — Portfolio, Page 16

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

8,084
Companies
$56.8B
Total invested
$10.2M
Avg. check
63
Industries
Artificial Intelligence (AI) 17Software 8Developer Tools 7B2B 6SaaS 4Cloud Computing 3+57 more
Founder contacts

Verified emails & LinkedIn for founders across this portfolio.

jane@on●●●●●●●.com
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Verified contacts, updated monthly
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Portfolio companies

Showing 361–384 of 8,084
Hebbian Robotics
September 2026

Hebbian Robotics is a data engineering company that builds APIs for robotics data teams for model training and quality control.

Artificial Intelligence (AI) · San Francisco$500K Pre-Seed
GitCafe
September 2026

GitCafe provides a collaborative code hosting and review platform with stacked pull requests, GitHub synchronization, and a developer CLI.

B2B · San Francisco$500K Pre-Seed
Bizmark
September 2026

Bizmark is an AI platform that automates and optimizes enterprise decisions across procurement, production, labor, and sales.

Artificial Intelligence (AI) · San Francisco$500K Pre-Seed
Speko
September 2026

Speko is an AI developer tools company that develops a voice AI gateway platform for building and deploying conversational AI agents.

Artificial Intelligence (AI) · San Francisco$500K Pre-Seed
Floracene
September 2026

Floracene is a Healthcare technology platform streamlining medical operations and workflows through AI-powered tools.

Health Care · New York$500K Pre-Seed
realpact.
September 2026

Realpact is an AI-powered real estate platform that automates transactions, contracts, workflows, and compliance.

Artificial Intelligence (AI) · San Francisco$500K Pre-Seed
Codag
September 2026

Codag cuts coding-agent costs by optimizing large tool outputs like logs and test results so agents consume fewer tokens.

Artificial Intelligence (AI) · San Francisco$500K Pre-Seed
Waddle Labs
September 2026

Waddle Labs builds LLM agents and generalist software infrastructure designed for real-time robotics control and learning.

Developer Tools · San Francisco$500K Pre-Seed
Reality Defender
September 2026

Reality Defender is the market leader in deepfake detection. Sign up for free at https://www.realitydefender.com/api

Artificial Intelligence (AI) · New York$86K Corporate Round
Hop Aero
September 2026

Hop Aero develops hypersonic rocket cargo systems for rapid point-to-point delivery in contested environments.

Advanced Materials · Orange$500K Pre-Seed
Insurf
September 2026

Insurf provides AI-based tools for managing prior authorizations, denial appeals, and health plan cost modeling.

Artificial Intelligence (AI) · Providence$500K Pre-Seed
Sequen
September 2026

Sequen is an AI-native Behavior Design Engine and reinforcement-learning-driven platform that powers adaptive in-session relevance.

Artificial Intelligence (AI) · Brooklyn$90.0M Series B
Gutgutgoose
September 2026

Gutgutgoose builds personalized probiotics using microbiome sequencing, computational gut modeling, and made to order formulations.

Biotechnology · San Francisco$500K Pre-Seed
Verdant
September 2026

Verdant is an AI infrastructure and workflow automation platform for local government permitting and planning.

Artificial Intelligence (AI) · San Francisco$500K Pre-Seed
Decawork AI
September 2026

Decawork AI provides software for IT teams to deploy, govern, and maintain internal AI agents.

Agentic AI · San Francisco$500K Pre-Seed
Mosaic
September 2026

Mosaic is a platform that brings AI coding sessions into one place, helping developers manage and work across coding agents.

Artificial Intelligence (AI) · San Francisco$500K Pre-Seed
Atlia
September 2026

Atlia provides AI-native short-term rental management services for property owners.

Analytics · San Francisco$500K Pre-Seed
Caution
September 2026

Caution provides a verifiable confidential compute platform that delivers cryptographic proof for secure and trusted workload execution.

Cloud Computing · George Town$500K Pre-Seed
Akon Labs
September 2026

Akon Labs develops GitNexus, a code intelligence engine for software engineering agents.

Artificial Intelligence (AI) · San Francisco$500K Pre-Seed
Familiar Labs
September 2026

Familiar Labs is an AI-powered translation lab that makes high-quality video dubbing with voice and lip-sync across 30 languages.

Artificial Intelligence (AI) · Toronto$500K Pre-Seed
CoArena
September 2026

CoArena provides a live evaluation platform and public leaderboard where AI computer-use agents race side-by-side on real-world tasks.

Artificial Intelligence (AI) · San Francisco$500K Pre-Seed
Agent FM
September 2026

Agent FM is AI desktop application that helps users to complete the described tasks across files, browser, and inbox.

Artificial Intelligence (AI) · San Francisco$500K Pre-Seed
hardware intelligence
September 2026

hardware intelligence builds agent-native toolchains and automated design workflows to streamline semiconductor chip development.

Agentic AI · San Francisco$500K Pre-Seed
ProjectX
March 2026

ProjectX is reimagining the future of computing with the first it's kind web-based compute platform "Infinity".

Cloud Computing · San Francisco$500K Pre-Seed

Where Y Combinator invests

Artificial Intelligence (AI)17
Software8
Developer Tools7
B2B6
SaaS4
Cloud Computing3

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), Software, Developer Tools, B2B, SaaS. The firm invests across 63 different industry categories.

What is Y Combinator's largest investment?▸

Among tracked funding rounds, Sequen received $90.0M in a Series B round. Y Combinator's total known invested capital is $56.8B.

What is the average investment size for Y Combinator?▸

Y Combinator's average investment size is $10.2M across its portfolio of 8,084 companies.

What are Y Combinator's most recent investments?▸

Recent Y Combinator portfolio additions include Hebbian Robotics, GitCafe, Bizmark, Speko, Floracene. These companies were founded in 2020 or later.

Reach the founders behind these 8,084 companies
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