Companies166
Active97%
Acquired or public2%
Inactive1%
Y Combinator's directory lists 166 companies in the Summer 2025 batch: 161 Active, 3 Acquired, 0 Public and 2 Inactive. Summer 2025 is less than two years out, so its Inactive share (1%) 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 2025
| Company | What they do | Status | Team |
|---|---|---|---|
| Acrely | Enterprise Voice Agents | Active | 6 |
| Adaptional | AI-powered insurance claims review | Active | — |
| AgentMail | Email Inboxes for AI Agents | Active | 10 |
| Alara | Procurement Platform for Dental Offices | Active | — |
| Albacore Inc. | Drone submarines | Active | 18 |
| Alter | Privileged Access Management for AI Agents | Active | 2 |
| Altur | Voice AI Agents for Debt Collection | Active | 5 |
| Ambral | AI for account management and customer success | Active | 4 |
| args | A better GItHub | Active | 2 |
| Astor | AI advisor for retail investors | Active | 5 |
| Autosana | AI agents for E2E testing across mobile & web | Active | 5 |
| Autumn | Billing infrastructure for AI | Active | 5 |
| Avelis Health | We audit medical claims for self-insured employers and health plans. | Active | 3 |
| Avent | AI agents for industrial commerce | Active | 5 |
| b12 Labs | Making hard molecules for Pharma and Biotech | Active | 3 |
| Bitrig | Build and ship native Swift apps with AI | Active | 3 |
| Bizzy AI | Bizzy works 24/7 so you never miss a lead. | Active | — |
| Blank Bio | RNA intelligence for precision medicine | Active | 6 |
| Blue | Your phone finally has someone to run it. Plug in Blue, just ask. | Active | 6 |
| BootLoop | Firmware in minutes, not months - rigorously tested on real hardware | Active | 3 |
| burnt | Agentic Operating System for Food Supply Chain | Active | 3 |
| Cactus Compute | Automation Foundation Models For Tiny Devices | Active | 8 |
| CareSwift | AI scribe for Ambulance Reports | Active | 2 |
| Certus AI | Replacing the restaurant phone line with Voice AI | Active | 8 |
| Channel3 | Database of every product on the internet | Active | 5 |
| Char | The AI notepad that knows and works for you | Active | 3 |
| CLODO | Planet-scale people discovery. | Active | 2 |
| Closera | AI Shopping Agent for Your Ecommerce Store | Active | 2 |
| cocreate | video production software | Active | 10 |
| Comena | AI agents for distributors and manufacturers to automate order entry. | Active | 8 |
| ContextFort | Visibility and Controls for Browser Agents | Active | 2 |
| Convexia | The world's first AI-maximalist pharma company | Active | 4 |
| Conviction | Anyone Can Trade | Active | 2 |
| Costream | Indexing human dialogue through digital products | Active | 7 |
| Cyberdesk | Self learning computer use agent for developers | Active | 2 |
| Datafruit | The AI workspace for software implementations | Active | 2 |
| Dedalus Labs | Compute substrate for AI agents | Active | 10 |
| DeepAware AI (Robotics Center of Silicon Valley) | Robots, parts & RL envs & evals - delivered in 48 hrs / pickup in SF. | Active | 4 |
| DeepGrove | Frontier Intelligence. On Any Device. | Active | 3 |
| Design Arena | World's largest crowdsourced benchmark for AI-generated design | Active | 3 |
| Doe | The boring stuff, handled. Everything else, supercharged. | Active | 4 |
| Duranium | Reshoring critical metal production | Active | 12 |
| EffiGov | The AI OS for Cities | Active | 3 |
| Embedder | The Enterprise AI Platform for Embedded Software | Active | 6 |
| Epicenter | ChatGPT's memory feature in an open, portable format | Active | 1 |
| F2 | The AI platform for private markets investors | Active | 15 |
| F4 Industries | The GD&T Analysis Platform for Engineering Drawings | Active | 5 |
| Finto | AI accounting for enterprise finance teams | Active | 10 |
| Flai | We Bring Customers to Your Dealership | Active | 35 |
| Fleetline | Optimizing fleet planning with data driven algorithms | Active | 11 |
| Floot | The app platform inside Claude and ChatGPT. | Active | 4 |
| Flywheel AI | Waymo for excavators | Active | 2 |
| Freya | Voice AI for Enterprises | Active | 14 |
| Frizzle | AI Grading for Teachers | Active | 2 |
| Fulcrum | The agentic debugger for AI systems | Active | 2 |
| GETASAP | AI-Native Fresh Produce Logistics | Active | 30 |
| GhostEye | Your always-on red team. | Active | 6 |
| Golpo | Create Whiteboard Explainer Videos with AI from a Prompt or Document | Active | 7 |
| Halluminate | Data and RL environments to automate knowledge work | Active | 5 |
| Hera | AI Motion Designer | Active | 5 |
| Humoniq | AI-Native BPO for travel & transport | Active | 5 |
| idler | Hill-climb any benchmark, for any model, in any domain. | Active | 12 |
| Imprezia | The World's First AI Ad Network. | Active | 4 |
| Interfere | Give engineering, product, and design teams insight into unseen issues | Active | 8 |
| Iron Grid | AI-Native Data Center Engineering | Active | 2 |
| IronLedger.ai | AI-enabled Corporate Cards and Invoice Processing for Real Estate | Active | — |
| Janet AI | Agents that learn your company and work 24/7 | Active | 5 |
| Juxta | Building a GPS alternative 100x more powerful with no hardware needed. | Active | — |
| Kalinda | Deep research for class action law firms | Active | 2 |
| KERNEL | Crazy fast, open source infra for AI agents to use the Internet | Active | 22 |
| Kestroll | AI video editor | Active | 2 |
| Knowlify | The AI Explainer Video Maker | Active | 6 |
| Lanesurf | Book any load in 10 minutes | Active | 11 |
| Lark | The E2E testing layer for AI-driven development | Active | 5 |
| Lilac | We sell GPUs. | Active | 4 |
| Liva AI | Building socially intelligent AI | Active | 6 |
| LLM Stats | Independent AI evaluations lab | Active | 2 |
| Locata | AI Referral Automation for Primary Care Clinics | Active | 4 |
| Lotas | AI for quantitative trading | Active | 2 |
| Luminal | Making AI run fast on any hardware. | Active | 7 |
| Magnetic | AI Tax Preparer for CPA firms | Active | 10 |
| Magnitude | Open source inference server for local models | Active | 2 |
| MangoDesk | Long-horizon RL environments | Active | 2 |
| Manufact | Cloud infrastructure for MCP servers and Claude / ChatGPT plugins. | Active | 5 |
| Maximal | Truckload Planning at Machine Precision | Active | 3 |
| Meteor | An AI-Native Browser | Active | 2 |
| Mimos | The growth OS for plaintiff-side law firms | Active | 2 |
| Minimal AI | AI Agents for E-commerce Customer Support | Active | 3 |
| Modelence | Production infrastructure on autopilot | Active | 3 |
| Monarcha | Turn maps into data | Active | 2 |
| Monte | Continual Learning for Agents | Active | 3 |
| Motives | Consumer focus groups run by AI | Active | — |
| Munify | The Cross-Border Neobank for the Middle East | Active | 4 |
| Nautilus | AI platform to grow and to optimize car washes | Active | 4 |
| Nixo | Make every FDE on your team capable of moving any account forward. | Active | 6 |
| Normal | Testing and certifying the hardware of the future | Active | 2 |
| NOSO LABS | Build AI agents for field technicians to diagnose and sell 10x better | Active | 6 |
| Notte | Browser infra for AI agents: sessions, auth, proxies, payments | Active | 5 |
| Novaflow | The AI data analyst for biology labs | Active | 4 |
| Nox Metals | Supplying America's Industrial Base | Active | 35 |
| Nozomio | product lab. focused on personal ai and context. | Active | 3 |
| Okibi | Turns products into CLIs and agents into customers | Active | 2 |
| Omnara | The Open-Source Alternative to Claude Managed Agents | Active | 4 |
| OnDeck AI | Analyze any footage, without training a model | Active | 7 |
| OneStop | The local internet for NYC. | Active | 2 |
| Orange Slice | Agentic sales enrichment spreadsheet | Active | 2 |
| Pally | Your personal AI Assistant | Active | 2 |
| Paloma | Digital transformation for real economy businesses | Active | 3 |
| Panels | Audio Data for AI Labs | Active | 1 |
| Pangolin | Open networking and security for your workforce, AI agents, and infra | Active | 3 |
| Panoptive | The continuous oversight engine for clinical trials | Active | 2 |
| PARES AI | AI-native real estate services firm | Active | 3 |
| Perseus Defense | America's Golden Dome for Drones | Active | 3 |
| Perspectives Health | AI to run behavioral health programs better | Active | 5 |
| Phases | AI for the physical world | Active | 3 |
| Physical Turing | Next generation robot deployer | Active | 2 |
| Pingo | AI companion that helps you learn languages | Active | 5 |
| Playgent | Sandboxes for AI agents | Active | 2 |
| Pleom | Agentic Business Intelligence | Active | — |
| Preseen | The AI forecasting company for global macro events. | Active | 1 |
| ProcIndex | AI-powered accounting automation for construction and manufacturing | Active | 4 |
| Proliferate | Do your life's work with agents | Active | — |
| Quotain | AI sales simulations using your real deals | Active | 2 |
| Reacher | We automate creator marketing for the world's largest brands | Active | 10 |
| RealRoots | IRL friendship app for women | Active | 7 |
| Rebulk | AI-native software for managing rail and bulk operations. | Active | 3 |
| Relling | deploying the first billion robots for manufacturing | Active | — |
| Risely AI | AI agents that automate administrative work across college campuses. | Active | 8 |
| Riverbank | Infrastructure Cartography | Active | 1 |
| RowFlow | Replacing forms with AI conversations | Active | 2 |
| Ruvo | The Global Dollar App for Brazil | Active | 11 |
| Sapien | Synthetic populations for decisions | Active | 2 |
| Serafis | Deep intelligence for private markets | Active | 4 |
| Shor | International payroll, built for founders | Active | 4 |
| SigmanticAI | The Cursor for Chip Design - Delivering Silicon-Ready Chip Designs… | Active | 2 |
| Sira | AI Native Rippling for Deskless Workers | Active | 4 |
| Slashy | Cursor for Email | Active | 3 |
| Socratix AI | AI coworkers for fraud and compliance teams. | Active | 5 |
| Solva | Building the new superintelligence for insurance | Active | 15 |
| Spotlight Realty | AI powered brokerage reducing residential rental commissions in NYC… | Active | 4 |
| stagewise | The Open Source Agentic IDE | Active | 2 |
| Stellon Labs | Building tiny frontier AI models that run on edge devices | Active | 2 |
| Stockline | AI-native ERP for food wholesalers | Active | 2 |
| Stormy | Stormy runs the office so your crew can run the work. | Active | 5 |
| Synthetic Society | Synthetic Videos to Simulate Real Users | Active | 2 |
| Tesora | Frontier AI for Actuaries | Active | 5 |
| The Prompting Company | We help products get discovered & used by AI agents. | Active | 7 |
| Theora | Building medical school for AI Agents | Active | 3 |
| Topological | Physics-based foundation models for CAD optimization. | Active | 2 |
| Trace | Context-aware orchestration between humans and AI. | Active | 3 |
| TraceRoot.AI | Open source self-improving layer for AI agents | Active | 3 |
| truthsystems | Automatically blocking risky behavior with real-time governance agents | Active | 6 |
| TwentyTwo | AI infrastructure for biosecurity | Active | 3 |
| Uplift AI | Foundational Voice Models for regional languages | Active | 3 |
| Veritus | AI agents for the consumer lending industry | Active | 10 |
| Verne Robotics | AI models that teach robots new skills in hours | Active | 7 |
| VibeFlow | AI content manager that grows your company's online presence | Active | 3 |
| Vulcan Technologies | Secure frontier AI for government & adjacent knowledge work | Active | 17 |
| Wafer | AI that makes AI fast | Active | 15 |
| Wayline | AI voice for property managers | Active | 5 |
| Wedge | AI Employees for Healthcare | Active | 2 |
| Metis | Infrastructure to build reliable agents | Acquired | 13 |
| Nexa Labs | Implantable microchips and AI for cattle monitoring | Acquired | 3 |
| Opennote | The notebook that thinks with you. | Acquired | 3 |
| Nuntius | Making Models Follow Rules. | Inactive | 2 |
| TectoAI | A Platform for AI Governance | Inactive | 2 |
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.
All batchesShut-down companies
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