Companies242

Active100%

Acquired or public0%

Inactive0%

Y Combinator's directory lists 242 companies in the Summer 2026 batch: 242 Active, 0 Acquired, 0 Public and 0 Inactive. Summer 2026 is less than two years out, so its Inactive share (0%) is not yet comparable with older batches (23% across batches at least two years old).

ActiveAcquiredPublicInactive

Statuses are Y Combinator's own listing in its public company directory, read on the date shown. YC's directory can drop companies altogether, so the Inactive counts here are a floor, not a full count of companies that stopped. Acquired and Public are as YC lists them; neither says anything about the price or the outcome for founders.

Every company in Summer 2026

Company	What they do	Status	Team
6thSense	Nervous System for Physical AI	Active	4
83 Sciences	AI-native materials discovery powered by unpublished experimental data	Active	3
Aerogen Systems	Building the future of advanced chip manufacturing.	Active	4
Agency Tool Company	Reliable infrastructure to build, deploy and manage real-world robots.	Active	3
Agent FM	One group chat to hear and steer your coding agents.	Active	2
Agentcard	debit cards for AI agents.	Active	—
Agnost AI	Product Analytics for Conversational Agents	Active	2
Akon Labs	The Github For Coding Agents	Active	2
Aktoria Robotics	Human as API for robots	Active	6
Alkera AI	Reliable and safe data engineering and data science agents	Active	3
Allia Health	Clinically Integrated Group for Mental Health	Active	3
Alloovium	The company brain for construction companies	Active	5
Almanac	The AI that knows you	Active	—
Amorphic Labs	OpenRouter for Agent Capabilities	Active	2
Applied Electrodynamics, Inc.	A new kind of camera that can see through walls.	Active	5
Arbital	The trading terminal for perps, memes, and stocks.	Active	3
Archal	API sandboxes, built for AI agents	Active	2
Assemble	AI Coworkers for IT teams	Active	4
Async	AI agents that run small businesses	Active	2
Atlas Discovery	AI-native pharma company	Active	3
Atlia	The AI-native property management company	Active	2
Atomarine	Floating nuclear powered data centers at sea.	Active	2
Audun	AI-native debt collection	Active	5
Avoca Systems	The AI-powered operating system for radiology networks	Active	8
Axelrod	Boutique Hotels that run themselves	Active	2
Baud	AI chips for ultra-fast training and inference	Active	3
Belvedir	The easiest way to make private AI models	Active	1
Bernard	AI employees that run home appliance repair companies	Active	9
Billow AI Labs	AI-native Accounting Firm that's killing Deloitte	Active	—
Bizmark	Agentic supply chain optimization	Active	2
Bloomy	AI-native learning for every school	Active	1
Buildbox	Agent analytics for real user outcomes	Active	2
Callbook AI	AI collections agency for late stage portfolios	Active	7
Care GP	AI agents to run primary healthcare operations	Active	10
CarSignal	The AI Operating System for Auto Shops.	Active	2
Caution	Hosting platform for software you don't want to have hacked	Active	5
Cerenovus	AI that finds value creation opportunities across enterprise…	Active	5
Chromie	find, qualify, & win contracts with AI	Active	2
Click	Research services for ChatGPT and Claude	Active	1
COACH	The AI Coach for in person sales reps.	Active	4
CoArena	The biggest crowdsourced benchmark for Computer-Use	Active	2
Codag	Tool call compression for agents.	Active	1
Computable	Exchange for Physical Compute	Active	2
Conifer	Least cost routing system to reduce 80%+ token spend	Active	4
Context.dev	We give AI agents realtime web context.	Active	1
Control Seat	AI that runs factories.	Active	2
Cosmic Robotics	Autonomous construction on Earth and beyond	Active	8
Cova	Financial infrastructure for family caregiving	Active	2
CueBench	RL post-training for science reasoning and performance engineering	Active	3
Daqstra	AI-native test infrastructure to accelerate hardware companies.	Active	3
Datoric	The secure training data R&D engine for physical AI	Active	2
Dawn Industries	Automatic Diagnosis & Fix for Industrial Automation Cells	Active	2
Decawork	The Agent Control Plane for IT teams	Active	2
DeepReach Inc.	Real-world data network for robots & world models	Active	6
Definite	Build everyday back-office agents on one live model of your books	Active	3
Denta	AI-Native Dental Insurance	Active	1
Derya	Agents for Industrial Supply Chains	Active	2
Dialogus	The AI-native contact center.	Active	3
Dipole Labs	AI-controlled optical switching for AI clusters	Active	—
Dock	Multiplayer workspace for agents and humans	Active	2
Donkey	The AI-native trading company: factory prices, delivered, one number	Active	7
Dream	Pocket-sized AI cameras that catch asset damage.	Active	2
Earendil Robotics	Drone swarm defence at a small-unit level	Active	7
Edgerun	Military exoskeletons	Active	8
EdotEnv	A Quant Neolab building self-improving agents from quant trading	Active	2
Edviro	AI That Operates Energy Infrastructure	Active	2
Egoist Machines	Your personal context, securely portable across every AI app.	Active	2
Ekho Labs	World Model for Freight	Active	—
Ekpa	Building Autonomous Research Agents for Trading	Active	2
Elite	AI voice agents that run the healthcare front office.	Active	2
Enact	Real-world RL environments for robotics models	Active	2
Erinys	We help lawyers start and scale AI-native law firms.	Active	3
Ethos Space Resources	We make Silicon on the Moon.	Active	2
Evergrove	Voice agents that accelerate care coordination in workers' comp	Active	2
Executor	The open source tool gateway	Active	1
Exosat	Building a neutral and sovereign alternative to Starlink	Active	1
Experiential Labs	Open source OpenRouter that turns your traffic into a better model	Active	2
Fabraix	The world's frontier hacker for AI agents.	Active	2
Familiar	Real-Time AI Dubbing. Neolab for World Translation.	Active	8
Financial Datasets	Connect your agent to the stock market	Active	1
Floracene	Vibecode + deploy HIPAA-compliant internal tools, no eng team needed	Active	2
Florin	Florin is the insurance carrier with zero underwriters	Active	3
FlowManual	AI for Construction's Back Office	Active	2
Frontier Computing	Frontier grows scalable biological brains as an ML training substrate	Active	1
Gamgee	Scalable Personalised Cancer Treatment	Active	2
GitCafe	The Git forge for the next hundred billion commits	Active	2
Glen	Institutional Learning Layer for Every Agent in Your Company	Active	1
Graphify Labs	On-device knowledge graph engine for enterprises	Active	2
Greypoint Industries	Building drone swarms that hunt drone operators	Active	4
Grip	Robots for waste manipulation	Active	4
Grocalo	AI software for creators that runs social content	Active	2
GUILD	AI-Native Defense Contractor	Active	2
Gutgutgoose	We sequence your gut and build the probiotics it’s missing	Active	2
hardware intelligence	AI tools for the chips your AI runs on	Active	2
Hebbian Robotics	Open source SDK for building quality control pipelines for Physical AI	Active	2
HERA	We make sure every factory in the world builds without mistakes.	Active	2
hiloop	Autoresearch as a service: we solve your hardest measurable problems	Active	2
Hilstart	Autonomous Hardware Testing	Active	—
Hop Aero	Rocket cargo delivery to contested environments	Active	6
Hoplite	Effortlessly deploy cloud software factories.	Active	2
Hubble	Retrieve records other APIs can't	Active	2
HyperProbe	AI engineer that fixes production issues on its own	Active	8
Illume Labs	24/7 Personal Health & Longevity Companion	Active	3
IMPACT Drones	Air Defense as a Service for Civilian Infrastructure.	Active	2
Induction Labs	Building intellectually curious AI	Active	2
Inkbox	The identity and communication layer for AI agents	Active	3
Instaplay	AI-Native Social Platform, Starting with Games	Active	4
Insurf	The AI-Native Decision Layer for Health Insurance	Active	3
Isengard Industries Inc	Mass-produced AI strike systems and Counter-UAS	Active	30
isoquant	Self-optimizing inference cloud for faster, cheaper AI	Active	2
Jcode	The harness company	Active	1
Kara	Making Diamond Engineerable	Active	3
Kebra	Making the field queryable	Active	2
Lamb Labs	Lightning fast chips with hardcoded AI models	Active	—
Last Accounting Company	Agent-native accounting firm.	Active	4
LATO	Agentic deal diligence for institutional investors	Active	2
LemonLime	Fully automated GTM for small business	Active	5
Levocred AI	Foundation Model for Lenders	Active	2
Libra Robotics	Robotic crews for large-scale infrastructure construction	Active	2
Litmus	Evals for humans	Active	3
Locke	AI agents that help companies and governments work together.	Active	2
Luca IQ	API-first tax engine for CPA firms and developers	Active	5
Lumeria	Oura Ring for Skin	Active	3
Lyon	Foundation models on enterprise transaction data.	Active	2
machine0	AWS for Agents	Active	1
Magma	Monetize your agent's traces.	Active	1
Maingen	Simulating Agents Running Industrial Companies	Active	2
Manifold	Deployment-ready robotic labor for the supply chain industry	Active	2
Marble	The autonomous back-of-house for restaurants.	Active	2
Marengo	AI-Native Engineering Firm designing Data Centers	Active	5
Marker	Platform and FDEs for rebuilding businesses agent-first	Active	3
Markov	Expert computer-use data for frontier AI labs	Active	2
Mass Magnetics	USA-made magnetics for robotics and defense.	Active	3
Mentlio	Engineering Intelligence and Token Optimization for the AI-Coding Era	Active	—
Meteoric	Drones that clear clouds over solar farms and weaken hurricanes	Active	2
Mireye	Infrastructure for Physical World AI Agents	Active	2
Mochi	Watch and create anime	Active	3
MOCHI.TV	1 Minute Anime	Active	3
Molagri	Resistance free pesticides.	Active	4
Moonshot	agents for the rest of us	Active	3
Mosaic	Defining the frontier of multiplayer AI.	Active	2
Most Robotic	Research lab for physical AI	Active	2
Moving Atoms	World Models for training and evaluating robots	Active	2
MusicArena	The crowdsourced benchmark for AI-generated music and music production	Active	—
Nebula Security	Autonomous AI defense system for cyber attack	Active	4
NebuSec	Autonomous AI defense system for cyber attack	Active	4
Neuromorphic	Building robots to automate wetlabs	Active	3
Neuron Industries	Industrial Controllers built for AI	Active	2
Nex	Claude Cowork for high volume GTM workflows	Active	5
Nori	The most capable American-made humanoid robot for $1,688	Active	5
Olam Labs	Building multi-agent simulations for model evals and training.	Active	2
Omanta	A research lab for one	Active	5
OneCLI	The open source AI teammates for your company.	Active	—
OneTriangle	The cheapest, fastest lightweight inference.	Active	4
Ooak Data	We turn company data into training data	Active	5
OpenRelay	Distributed, hardware-agnostic AI inference	Active	2
OpenTag	Model Agnostic Claude Tag	Active	3
OpenTrade	The new interface for investing.	Active	3
OpenVector	AI that turns any camera to an autonomous worker with real-time vision	Active	4
Orchestra	Self-optimizing neocloud that cuts LLM costs by 100x	Active	2
OS3	Affordable, intelligent humanoid robots built to deploy at scale	Active	2
Osmaura	AI-native client care for corporate law firms	Active	2
Osseus		Active	2
Pacific	Mass-producing and financing micro data center incredibly quickly.	Active	3
Palette	An AI-Native Media Platform	Active	2
Palisade	AI sales agents that run your marketplace	Active	1
Palisade	AI that finds and fixes OS-level vulnerabilities across device fleets	Active	1
Pango	Agentic OS for e-commerce operations	Active	5
Parasma	Training human brain cells for AI compute	Active	1
Peer	AI-native freight brokerage	Active	2
Pennant	The World Model for Corporate Governance	Active	2
Perceptron ML	We make law firms AI-native.	Active	2
Petrarch	Internal industrial company data for frontier labs	Active	3
Pluto	LinkedIn for agents	Active	5
PokerClubHub	Host a Poker Club and Make Money	Active	—
Poth Labs	Conversational surveys that replace Qualtrics for large brands	Active	2
Praxis Robotics	Turns every company into a data vendor	Active	3
Prescience, Inc.	Health insurance for the age of abundant intelligence.	Active	2
PRINCEPS	AI-native insurance company for the compute economy	Active	3
Prized	A cloud devbox that feels local	Active	2
Prodigy Research	Training the world's best foundation model for quantitative finance.	Active	2
Proprio Robotics	Building autonomous data centers	Active	1
ProvenMetal	Fast-turn, American made PCBs	Active	4
Qlo	Legora for commercial insurance carriers	Active	2
Radley	The AI-native radiology practice	Active	2
Rapidfolio	AI for fintechs & banks	Active	—
Rasyn	Making chemicals 100,000x faster	Active	3
Rational	AI Employees for In-House Enterprise Accounting	Active	2
RealPact	AI-native OS for Real Estate Brokerages	Active	2
rekursiv.ai	Scale AI scientists whose own breakthroughs accelerate the next.	Active	2
Rex	AI-native BPO for enterprise order-to-cash	Active	2
Riften	Earned intelligence for every company	Active	—
Rindler	The IDE for Tokenmaxxers	Active	2
Rise Reforming	We turn waste gases into valuable supply-secure chemicals	Active	4
Risklytics	AI-Native Insurance for Frontier Tech	Active	2
Robocurve	Real-world evals for robots	Active	3
RonanRx Inc.	Full Stack Pharmaceutical Company for Personalized Peptides and GLP-1s	Active	5
Salem Robotics Inc	Deploying robots for inspections in hazardous spaces, like nuclear.	Active	2
screenpipe	Turn your company's computer work into AI agents.	Active	2
Shielded	The agentic origination desk for supply chain risk.	Active	—
Shiraz AI	Robots that learn on the job	Active	2
Sidekick	AI agent that manages manufacturing operations over text	Active	1
Skymerse	Autopilot for Flight Operations	Active	—
SpaceFlow Technologies, Inc.	AI-native procurement services for the physical economy	Active	4
Spectre Intelligence	We are a multi-strategy trading firm that trains AI traders.	Active	2
Speko	OpenRouter for Voice AI: one API, every call on the best speech model	Active	4
Standard Machines	Teaching AI to Design Chips	Active	—
Stoa	The market behind AI hardware.	Active	3
Stratum Industries	Applied AI for Governments.	Active	2
Studio	Accurately simulate market response at scale	Active	2
SubVysion	Autonomous rovers to make the ‘Google Maps’ of underground utilities	Active	2
Sunflower	We are building an AI-native telemedicine clinic for addiction. 🌻	Active	15
Synapse Semiconductor	New semiconductors that merge compute and vision	Active	2
TareBio	Vaccines for any cancer or infection in weeks.	Active	1
Tarifflo Inc.	Supply chain compliance and cost savings	Active	5
tash	The investment platform for sports & trading cards	Active	4
Tenor	AI that own jobs end-to-end and learn from every outcome	Active	3
Tensr	Robotic factories that build robots	Active	7
Torus	Legora for physical engineering firms	Active	6
Touchmark	Market for future inference capacity	Active	2
Touchy	AI iOS assistant that instantly uses voice and video to take action	Active	3
TovenAI	AI agents for compliance at institutional trading firms	Active	2
Traceforce	CrowdStrike for AI Agents	Active	2
Tracer	Combining open-source AI models for better answers at lower cost	Active	1
Trident	Autonomous offensive security agents. The best defense is offense	Active	4
Trope	AI FDE that deploys custom AI agents into ERPs	Active	2
TryNearby	Local creators for local businesses	Active	5
Tsenta	AI career agent that finds matching jobs & applies on your behalf	Active	2
Ultrasonium	Metal manufacturing, faster, cheaper, and more versatile.	Active	5
Understudy Labs	Self-optimizing neocloud that cuts LLM bills by 80%	Active	2
Vendo	Let your users build their own features on top of your product	Active	2
Verdant	AI-native planning & permitting software for local gov	Active	2
Verdict Machine	AI cybersecurity for financial institutions' digital assets	Active	4
Vernius Systems, Inc.	Autonomous radar guidance for interceptors	Active	3
Vestris	AI native platform for real estate closings	Active	2
Waddle Labs	Agents for robotics control.	Active	2
Waybill	Managed procurement & inventory for hardware teams.	Active	5
Whitespace	AI Operating System for Wholesale Distribution	Active	2
Wondering	Duolingo for learning anything	Active	2
WonderTx	Extrapolative AI to unlock First-in-Class drugs	Active	3
Zaplar	Agentic Hotel Operating System	Active	8
Zomma	Computer-use agent swarms for financial back offices	Active	5

How this is measured

Measured 2026-09-26 from Y Combinator's company directory. Team size is the number YC lists for the company, where it lists one. Survival here means listed Active; Acquired and Public are shown separately because YC's listing does not say whether an acquisition was a good outcome.

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What happened to YC Summer 2026

Every company in Summer 2026

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