Y Combinator companies
The Y Combinator portfolio as the radar sees it: synced daily, classified into clusters, checked for life and movement. 6,198 companies.
| Company | Cluster | Program | Status | Last signal |
|---|---|---|---|---|
| RadleyAI The first AI-native radiology practice | Healthcare and bioAI-native radiology practice operations | Y CombinatorS26 | Active | checked 2026-08-23 |
| RapidfolioAI AI for fintechs & banks | Vertical AI agentsAI automation for banking back-office | Y CombinatorS26 | Active | checked 2026-08-23 |
| RasynAI Towards a General Intelligence for Chemistry | Healthcare and bioAI drug discovery and chemistry | Y CombinatorS26 | Active | checked 2026-08-23 |
| RationalAI AI Employees for Accounting | Vertical AI agentsAI agents for accounting operations | Y CombinatorS26 | Active | checked 2026-08-23 |
| RealPactAI AI-native OS for Real Estate Brokerages | Vertical AI agentsAI agents for real estate transaction processing | Y CombinatorS26 | Active | checked 2026-08-23 |
| rekursiv.aiAI Scale AI scientists whose own breakthroughs accelerate the next. | Vertical AI agentsAI research and discovery automation | Y CombinatorS26 | Active | checked 2026-08-23 |
| RexAI AI-native BPO for enterprise order-to-cash | Vertical AI agentsAI order-to-cash automation for enterprise | Y CombinatorS26 | Active | checked 2026-08-23 |
| RiftenAI Earned intelligence for every company | AI infra and computeAI inference routing and optimization | Y CombinatorS26 | Active | checked 2026-08-24 |
| RindlerAI The translation layer between AI agents and the web | Agent infrastructureWeb automation for AI agents | Y CombinatorS26 | Active | checked 2026-08-23 |
| Rise Reforming We turn waste gases into valuable supply-secure chemicals | Climate and energybiogas-to-chemicals conversion | Y CombinatorS26 | Active | checked 2026-08-23 |
| Risklytics Insurance for the Frontier | FintechAI and robotics insurance brokerage | Y CombinatorS26 | Active | checked 2026-08-23 |
| Robocurve Evaluating robots in the real world. | Robotics and physical worldRobot performance benchmarking infrastructure | Y CombinatorS26 | Active | checked 2026-08-23 |
| RonanRx Inc. We use AI to personalize peptides to your biology | Healthcare and bioAI-powered personalized peptide therapy | Y CombinatorS26 | Active | checked 2026-08-23 |
| Salem Robotics Inc Deploying robots for inspections in hazardous spaces, like nuclear. | Robotics and physical worldautonomous inspection robots for hazardous environments | Y CombinatorS26 | Active | checked 2026-08-23 |
| screenpipeAI AI powered by everything you've seen, said or heard | Agent infrastructureDevice-local AI memory and context infrastructure | Y CombinatorS26 | Active | checked 2026-08-23 |
| Shielded Decision intelligence for the world’s largest supply chains | B2B SaaSSupply chain and financial risk monitoring | Y CombinatorS26 | Active | checked 2026-08-23 |
| Shiraz AIAI Robots that learn on the job | Robotics and physical worldLearning robots for contract manufacturing | Y CombinatorS26 | Active | checked 2026-08-23 |
| SidekickAI AI agent that handles frontline operations over text | Vertical AI agentsAI operations assistant for manufacturing | Y CombinatorS26 | Active | checked 2026-08-23 |
| SkymerseAI Autopilot for Flight Operations | Vertical AI agentsAI autopilot for airline flight operations | Y CombinatorS26 | Active | checked 2026-08-23 |
| Snap PokerAI The social network for online poker | Agent infrastructureRL environments for AI agents | Y CombinatorS26 | Active | checked 2026-08-23 |
| SpaceFlow Technologies, Inc.AI AI-native procurement services for the physical economy | Agent infrastructureAI agent runtime and orchestration | Y CombinatorS26 | Active | checked 2026-08-23 |
| Spectre IntelligenceAI We are a multi-strategy trading firm that trains AI traders. | FintechAI trading | Y CombinatorS26 | Active | checked 2026-08-23 |
| SpekoAI A router for voice models. One key, every model. | Agent infrastructureVoice AI routing and orchestration | Y CombinatorS26 | Active | checked 2026-08-23 |
| Standard MachinesAI Teaching AI to Design Chips | AI infra and computeRL environments for chip design | Y CombinatorS26 | Active | checked 2026-08-23 |
| Standard MedicalAI A primary care clinic where AI earns clinical autonomy | Healthcare and bioAI-autonomous primary care delivery | Y CombinatorS26 | Active | checked 2026-08-23 |
| Stoa The market behind AI hardware. | Commerce and marketplacesGPU trading marketplace | Y CombinatorS26 | Active | checked 2026-08-23 |
| Stratum IndustriesAI Applied AI for Governments. | Vertical AI agentsAI agents for government application review | Y CombinatorS26 | Active | checked 2026-08-23 |
| StudioAI Engineer the future | Data for AIMarket behavior prediction and simulation | Y CombinatorS26 | Active | checked 2026-08-23 |
| SubVysion Autonomous rovers to make the ‘Google Maps’ of underground utilities | Robotics and physical worldUnderground utility mapping for construction | Y CombinatorS26 | Active | checked 2026-08-23 |
| SunflowerAI Building the Sobriety Platform for the future of Superintelligence. 🌻 | Healthcare and bioDigital addiction recovery platform | Y CombinatorS26 | Active | checked 2026-08-23 |
| Synapse Semiconductor New semiconductors that merge compute and vision | Robotics and physical worldintegrated vision semiconductor stack | Y CombinatorS26 | Active | checked 2026-08-23 |
| TareBio Vaccines for any cancer or infection in weeks. | Healthcare and biopersonalized cancer vaccines | Y CombinatorS26 | Active | checked 2026-08-23 |
| Tarifflo Inc. Supply chain compliance and cost savings | Commerce and marketplacessupply chain compliance software | Y CombinatorS26 | Active | checked 2026-08-23 |
| tash The investment platform for sports & trading cards | Consumertrading card investment platform | Y CombinatorS26 | Active | checked 2026-08-23 |
| TenorAI AI workers that attribute the outcome back to the token spend | Vertical AI agentsAI labor management and cost attribution | Y CombinatorS26 | Active | checked 2026-08-23 |
| TensrAI Robotic factories that build robots. | Robotics and physical worldautonomous robotic manufacturing | Y CombinatorS26 | Active | checked 2026-08-23 |
| Torus Legora for physical engineering firms | Robotics and physical worldAI infrastructure planning for construction | Y CombinatorS26 | Active | checked 2026-08-23 |
| Touchmark Market for future inference capacity | AI infra and computeInference capacity marketplace | Y CombinatorS26 | Active | checked 2026-08-23 |
| TouchyAI AI voice assistant that understands the world around you | Horizontal AI assistantspersonal AI assistant for iPhone | Y CombinatorS26 | Active | checked 2026-08-23 |
| TovenAIAI AI agents for compliance at institutional trading firms | Vertical AI agentsAI agents for compliance at trading firms | Y CombinatorS26 | Active | checked 2026-08-23 |
| Traceforce Securing AI native apps directly on devices | Security and complianceAI app security and compliance monitoring | Y CombinatorS26 | Active | checked 2026-08-23 |
| TracerAI Combining open-source AI models for better answers at lower cost | AI infra and computemulti-model coordination and inference optimization | Y CombinatorS26 | Active | checked 2026-08-23 |
| TridentAI Agents that find real exploitable vulnerabilities in your company | Security and complianceAI-powered continuous penetration testing | Y CombinatorS26 | Active | checked 2026-08-23 |
| TropeAI The AI-native ERP system integrator | Vertical AI agentsAI-native ERP implementation and operations | Y CombinatorS26 | Active | checked 2026-08-23 |
| TryNearby Local creators for local businesses | B2B SaaSCreator marketplace for restaurants | Y CombinatorS26 | Active | checked 2026-08-23 |
| TsentaAI AI career agent that finds matching jobs and applies for you | Vertical AI agentsJob search and application automation | Y CombinatorS26 | Active | checked 2026-08-23 |
| Ultrasonium Manufacturing the metal parts the world runs on faster, cheaper, safer | Robotics and physical worldAdvanced metal manufacturing | Y CombinatorS26 | Active | checked 2026-08-23 |
| Understudy LabsAI Self-optimizing neocloud that cuts LLM bills by 80% | AI infra and computeinference optimization and model distillation | Y CombinatorS26 | Active | checked 2026-08-23 |
| VelthaAI AI claims adjuster for regulated insurance | Vertical AI agentsAI claims adjuster for insurance | Y CombinatorS26 | Active | checked 2026-08-23 |
| Vendo Let your users build their own features on top of your product | Developer toolsno-code customization layer for SaaS | Y CombinatorS26 | Active | checked 2026-08-23 |
| VerdantAI AI-native planning & permitting software for local gov | B2B SaaSAI permit management for local government | Y CombinatorS26 | Active | checked 2026-08-23 |
| Verdict MachineAI AI cybersecurity for financial institutions' digital assets | Security and complianceAI cybersecurity for crypto financial institutions | Y CombinatorS26 | Active | checked 2026-08-23 |
| Vernius Systems, Inc. Autonomous radar guidance for interceptors | Defense and spaceautonomous radar guidance systems | Y CombinatorS26 | Active | checked 2026-08-23 |
| VestrisAI AI native platform for real estate closings | Vertical AI agentsAI-powered real estate closing automation | Y CombinatorS26 | Active | checked 2026-08-23 |
| Waddle LabsAI Agents for robotics control. | Agent infrastructureAI agents for robotics control | Y CombinatorS26 | Active | checked 2026-08-23 |
| Waybill Managed procurement & inventory for hardware teams. | Commerce and marketplacesProcurement and inventory for hardware teams | Y CombinatorS26 | Active | checked 2026-08-23 |
| WhitespaceAI AI Operating System for Wholesale Distributors | Vertical AI agentsAI agents for wholesale distribution | Y CombinatorS26 | Active | checked 2026-08-23 |
| WonderingAI Duolingo for learning anything, but 10x better | ConsumerAI-powered adaptive learning platform | Y CombinatorS26 | Active | checked 2026-08-23 |
| WonderTxAI Extrapolative AI to unlock First-in-Class drugs | Healthcare and bioAI-powered oral drug discovery | Y CombinatorS26 | Active | checked 2026-08-23 |
| ZaplarAI Agentic Hotel Operating System | Vertical AI agentsAI hotel operations automation | Y CombinatorS26 | Active | checked 2026-08-23 |
| ZommaAI Computer Use Agents for back offices in finance | Vertical AI agentsComputer use agents for finance back-office | Y CombinatorS26 | Active | checked 2026-08-23 |
| 9 Mothers Counter Drone Systems. $1.6m sales. We delivered for the DoW. | Defense and spaceautonomous counter-drone systems | Y CombinatorX26 | Active | checked 2026-08-23 |
| AbInitio BioAI The Intelligence layer for Drug Manufacturing | Healthcare and bioAI-driven biomanufacturing optimization | Y CombinatorX26 | Active | checked 2026-08-23 |
| Adialante Cancer screening without barriers | Healthcare and bioMobile MRI cancer screening | Y CombinatorX26 | Active | checked 2026-08-23 |
| Advanced Metal ResearchAI Machine intelligence for American Welding | Robotics and physical worldAI-driven robotic welding automation | Y CombinatorX26 | Active | checked 2026-08-23 |
| AgentPhoneAI Phone Numbers for AI Agents | Agent infrastructurePhone identity for AI agents | Y CombinatorX26 | Active | checked 2026-08-23 |
| AICE Submarine drones for defense | Defense and spaceAutonomous underwater defense drones | Y CombinatorX26 | Active | checked 2026-08-23 |
| AkkariAI Autonomous Customer Operations | Vertical AI agentsCustomer operations automation platform | Y CombinatorX26 | Active | checked 2026-08-23 |
| AlchemizeAI Ship more code with confidence | Developer toolsAI-powered code review automation | Y CombinatorX26 | Active | checked 2026-08-23 |
| AllowanceAI The spend control layer for AI agents | Agent infrastructureAI agent payment infrastructure | Y CombinatorX26 | Active | checked 2026-08-23 |
| AmborasAI AI Native Shopify | Vertical AI agentsAI e-commerce store management | Y CombinatorX26 | Active | checked 2026-08-23 |
| AndcoAI Agents that build personal injury cases | Vertical AI agentsAI agents for personal injury case building | Y CombinatorX26 | Active | checked 2026-08-23 |
| AndustryAI Andustry · AI-native broker for industrial equipment. · Andustry | Robotics and physical worldAI-native hardware manufacturing | Y CombinatorX26 | Active | checked 2026-08-23 |
| ANORIAAI The first wearable that reads your emotions to enhance your EQ. | Consumeremotional intelligence wearable | Y CombinatorX26 | Active | checked 2026-08-23 |
| Apollo Atomics, Inc. We make the most compact nuclear reactors | Climate and energycompact nuclear reactor hardware | Y CombinatorX26 | Active | checked 2026-08-23 |
| AquaShieldAI AI water leak detection for buildings | Vertical AI agentsAI water damage detection for real estate | Y CombinatorX26 | Active | checked 2026-08-23 |
| AraAI The Cloud Coding Agent | Vertical AI agentsautonomous software engineering agent | Y CombinatorX26 | Active | checked 2026-08-23 |
| Archer Global payouts for the workforce powering AI | FintechPayouts for AI data contributors | Y CombinatorX26 | Active | checked 2026-08-23 |
| Arctic HealthAI AI-native credentialing and contracting for healthcare | Vertical AI agentsAI credentialing and contracting for healthcare | Y CombinatorX26 | Active | checked 2026-08-23 |
| ArdenAI AI-native internal audit firm | Vertical AI agentsAI audit agents for SOX compliance | Y CombinatorX26 | Active | checked 2026-08-23 |
| Ardent Database sandboxes for Agents | Agent infrastructureDatabase sandboxing for AI agents | Y CombinatorX26 | Active | checked 2026-08-23 |
| Arga Labs Real-world sandboxes to test and train AI agents | Agent infrastructureAgent testing and sandbox environments | Y CombinatorX26 | Active | checked 2026-08-23 |
| Arlo Industries Track drones and missiles without radars - Accurate, Passive, Scalable | Defense and spacepassive drone and missile tracking network | Y CombinatorX26 | Active | checked 2026-08-23 |
| ArmatureAI Improve how users experience your product through AI Agents | Agent infrastructureAI agent analytics and testing infrastructure | Y CombinatorX26 | Active | checked 2026-08-23 |
| ArzanaAI The autonomous ERP for every manufacturer | Vertical AI agentsAI ERP automation for manufacturers | Y CombinatorX26 | Active | checked 2026-08-23 |
| Asendia AIAI AI recruiters for staffing agencies | Vertical AI agentsAI recruiting agents for staffing agencies | Y CombinatorX26 | Active | checked 2026-08-23 |
| Aseon Labs Robotic pitstops for self-driving cars | Robotics and physical worldrobotic servicing for autonomous vehicles | Y CombinatorX26 | Active, new domain | 2026-08-23 |
| AsterAI Automating open-ended research. | Vertical AI agentsautonomous research automation | Y CombinatorX26 | Active | checked 2026-08-23 |
| AstraeaAI AI Operating System for Clinical Development | Vertical AI agentsAI clinical trial data automation | Y CombinatorX26 | Active | checked 2026-08-23 |
| AtrisaAI AI Agents for Analog Circuit Design | Vertical AI agentsAI agents for analog circuit design | Y CombinatorX26 | Active | checked 2026-08-23 |
| AutostepAI The P&L for knowledge work | Vertical AI agentsAI workflow optimization for operations | Y CombinatorX26 | Active | checked 2026-08-23 |
| AuxosAI Simulations of real people for market research | B2B SaaSAI-powered market research platform | Y CombinatorX26 | Active | checked 2026-08-23 |
| Avea Robotics The human-in-the-loop system for robots | Robotics and physical worldremote robot control and intervention | Y CombinatorX26 | Active | checked 2026-08-23 |
| BentoLabs AIAI Monitoring and learning layer for long-running agents | Agent infrastructureAgent monitoring and observability | Y CombinatorX26 | Active | checked 2026-08-23 |
| BioStack Platforms Real world training envs for healthcare AI models | Data for AIBiological data pipelines for healthcare AI | Y CombinatorX26 | Active | checked 2026-08-23 |
| BloomAI The brand layer for agents. | Agent infrastructureBrand standardization and compliance for AI agents | Y CombinatorX26 | Active | checked 2026-08-23 |
| Callab AIAI AI voice agents for on-prem telephony stack. | Vertical AI agentsAI voice agents for legacy call centers | Y CombinatorX26 | Active | checked 2026-08-23 |
| CentralComsAI AI agent platform for home services companies. | Vertical AI agentsAI dispatch for home services | Y CombinatorX26 | Active | checked 2026-08-23 |
| CharacterQuiltAI Computer use agents to deploy enterprise marketing campaigns | Vertical AI agentsAI agents for enterprise marketing deployment | Y CombinatorX26 | Active | checked 2026-08-23 |
| Chert iMessage infrastructure for business | Agent infrastructureiMessage automation infrastructure | Y CombinatorX26 | Active | checked 2026-08-23 |