Cohorts of 2023
Companies whose accelerator cohort started in 2023. 2,105 companies.
| Company | Cluster | Program | Status | Last signal |
|---|---|---|---|---|
| Orbio EarthAI Tracking methane emissions with satellites | Climate and energymethane emissions satellite monitoring | Y CombinatorS23 | Site unreachable | checked 2026-08-17 |
| Original Games Creative & Curious & Universal - Building the future of mobile casual gaming! | Consumercasual mobile gaming | a16z speedrunSR001 | Active | checked 2026-08-23 |
| Osium AIAI Speed up materials innovation with Artificial Intelligence | Vertical AI agentsMaterials science R&D acceleration | Y CombinatorS23 | Active | checked 2026-08-23 |
| OutsetAI AI-powered user interviews | Vertical AI agentsAI-powered qualitative research interviews | Y CombinatorS23 | Active | checked 2026-08-23 |
| ParadeDB Unify application data, vectors, and full-text search in one Postgres | AI infra and computeVector search and retrieval infrastructure | Y CombinatorS23 | Active | checked 2026-08-23 |
| Parea Test, evaluate & observe your LLM applications | Developer toolsLLM testing and monitoring platform | Y CombinatorS23 | Active | checked 2026-08-23 |
| PeerDB Fast, native ETL for Postgres đ đ | Data for AIPostgres-native CDC and data streaming | Y CombinatorS23 | Acquired | checked 2026-08-23 |
| PincitesAI Close deals faster with AI for contract negotiation | Vertical AI agentsAI contract negotiation for legal teams | Y CombinatorS23 | Acquired | 2026-08-23 |
| Pointhound Earn and redeem credit card points for free flights | Consumercredit card points redemption platform | Y CombinatorS23 | Active | checked 2026-08-23 |
| Proof of HumanAI continuous human verification without CAPTCHAs or user friction | Security and compliancebot detection and human verification API | Y CombinatorS23 | Active | checked 2026-08-23 |
| PropRise The AI platform for CRE investment teams | B2B SaaSAI workflow automation for CRE dealmaking | Y CombinatorS23 | Active | checked 2026-08-23 |
| ProsperAI AI Phone Agents for Healthcare Operations | Vertical AI agentsAI phone agents for healthcare operations | Y CombinatorS23 | Active | checked 2026-08-23 |
| PunchcardAI Agentive assurance system for auditors, risk consultants, and clients. | Vertical AI agentsAI agents for audit and assurance | Y CombinatorS23 | Active | checked 2026-08-23 |
| Pure Marketplace for Rare Coins & Precious Metals | Commerce and marketplacesMarketplace for rare coins and precious metals | Y CombinatorS23 | Active | checked 2026-08-23 |
| Quill BillsAI AI-Powered Medical Billing | Vertical AI agentsAI medical billing automation | Y CombinatorS23 | Active | checked 2026-08-23 |
| RankaiAI RankAI grows your website on autopilot | B2B SaaSAI-powered content and SEO automation | Y CombinatorS23 | Active | checked 2026-08-23 |
| Rascal Games Go on adventures with your friends. | Consumersocial gaming platform | a16z speedrunSR001 | Active | checked 2026-08-23 |
| Ray Browser The Only Browser Built For Gaming | Consumergaming browser platform | a16z speedrunSR001 | Active, new domain | 2026-08-23 |
| Read BeanAI Learn language with real-world content, at your level | ConsumerAI-powered language learning app | Y CombinatorS23 | Active | checked 2026-08-23 |
| ReadilyAI AI Compliance Platform for Healthcare Organizations | Healthcare and bioAI compliance automation for healthcare | Y CombinatorS23 | Active, new domain | 2026-08-23 |
| RecipeUI The open source Postman alternative. | Developer toolsAPI testing and debugging | Y CombinatorS23 | Inactive | checked 2026-08-17 |
| refine Open-source Retool for enterprise | Developer toolsReact framework for enterprise apps | Y CombinatorS23 | Active | checked 2026-08-23 |
| RemyAI Making it simpler for medical clinics to work with insurance | Vertical AI agentsInsurance automation for medical clinics | Y CombinatorS23 | Inactive | checked 2026-08-17 |
| RepaintAI Build a website by chatting with AI | Vertical AI agentsAI website builder via chat | Y CombinatorS23 | Active | checked 2026-08-23 |
| RevampAI AI-Powered Customer Segmentation for eCommerce | B2B SaaSAI customer segmentation for ecommerce | Y CombinatorS23 | Active | checked 2026-08-23 |
| ReworkdAI The simplest way to extract web data at scale | Vertical AI agentsWeb data extraction agents | Y CombinatorS23 | Active | checked 2026-08-23 |
| RimwardAI Low-false-positive intrusion detection for remote outdoor sites | Security and complianceComputer vision intrusion detection for remote sites | Y CombinatorS23 | Active | checked 2026-08-23 |
| Roame Flight search engine using credit card points and miles | Consumerflight search for points and miles | Y CombinatorS23 | Active | checked 2026-08-23 |
| RosebudAI Vibe Code Games | ConsumerAI-powered game creation platform | a16z speedrunSR001 | Active | checked 2026-08-23 |
| RunwareAI Flexible generative AI for image and video. | AI infra and computeAI media generation API and inference | a16z speedrunSR001 | Active | checked 2026-08-25 |
| Saatvy Root cause help for chronic conditions | Healthcare and bioAyurvedic chronic disease management | Y CombinatorS23 | Inactive | checked 2026-08-23 |
| SafetyKitAI AI agents for risk, compliance, and safety | Vertical AI agentsAI agents for trust and safety operations | Y CombinatorS23 | Active | checked 2026-08-23 |
| SantĂŠ All-in-one POS for liquor stores | B2B SaaSPOS system for liquor retail | Y CombinatorS23 | Active | checked 2026-08-23 |
| Sci-Lume Bylonâ˘: the sustainable apparel fiber replacement, at the scale we need | Climate and energysustainable materials and apparel | SOSVSOSV IndieBio NY 08 | Active | checked 2026-08-23 |
| Sendblue iMessage for Sales | B2B SaaSSales messaging automation | Y CombinatorS23 | Active | checked 2026-08-23 |
| SerraAI Your 24/7 AI Recruiter | Vertical AI agentsAI recruiting agent for sourcing | Y CombinatorS23 | Active | checked 2026-08-23 |
| Shadeform The GPU Cloud Marketplace | AI infra and computeGPU cloud marketplace and provisioning | Y CombinatorS23 | Active, new domain | 2026-08-23 |
| Shasta HealthAI AI calling & browser agents for healthcare | Healthcare and bioAI agents for clinical administration | Y CombinatorS23 | Active | checked 2026-08-23 |
| SIDAI AI research lab for retrieval | Data for AIretrieval and reasoning infrastructure | Y CombinatorS23 | Active | checked 2026-08-23 |
| SidenoteAI Meeting follow-up, automated | Vertical AI agentsMeeting follow-up automation | Y CombinatorS23 | Inactive | checked 2026-08-23 |
| SilimateAI Fast, efficient agents for chip design and debug | Vertical AI agentsAI agents for chip design and debug | Y CombinatorS23 | Active | checked 2026-08-23 |
| Simbie AIAI We get patients to their next appointment | Vertical AI agentsPatient appointment reminders and no-show reduction | Y CombinatorS23 | Active | checked 2026-08-23 |
| Singularity Building and Protecting an Exciting Future | Defense and spacecounter-weapon defense systems | Y CombinatorS23 | Active | checked 2026-08-23 |
| sizeless Instant 3D Digital Twins for Smarter Real Estate. | B2B SaaS3D digital twins for property management | Y CombinatorS23 | Active | checked 2026-08-23 |
| SkyvernAI Open Source AI Agent to automate browser workflows via an API | Agent infrastructureBrowser automation for AI agents | Y CombinatorS23 | Active | checked 2026-08-23 |
| SlickerAI Recover payment failures and maximize subscription Revenue | FintechAI payment recovery for subscriptions | Y CombinatorS23 | Active | checked 2026-08-23 |
| SloydAI Sloyd is a platform where creators can generate 3D models fast and in a easy way. | Developer tools3D asset generation for creators | a16z speedrunSR001 | Active | checked 2026-08-23 |
| Smobi Send texts your customers actually want over RCS | B2B SaaSAI-powered business messaging platform | Y CombinatorS23 | Active | checked 2026-08-23 |
| Sohar HealthAI AI-powered insurance verification to boost patient conversion. | Healthcare and bioAI insurance verification automation | Y CombinatorS23 | Active | checked 2026-08-23 |
| SolaAI Copilot for Robotic Process Automation | Agent infrastructureRPA and workflow automation infrastructure | Y CombinatorS23 | Active, new domain | 2026-08-23 |
| Solve IntelligenceAI AI patent drafting, prosecution, litigation and more for legal teams. | Vertical AI agentsAI patent drafting and prosecution for legal teams | Y CombinatorS23 | Active | checked 2026-08-23 |
| Spine AIAI Manage a swarm of AI agents to get real work done | Agent infrastructuremulti-agent orchestration and visualization | Y CombinatorS23 | Active | checked 2026-08-23 |
| Starstone Next generation construction with biological building blocks | Robotics and physical worldbiological construction materials | SOSVSOSV IndieBio NY 08 | Site unreachable | checked 2026-08-17 |
| Stellar Sleep We help people with chronic insomnia sleep better, using psychology. | Healthcare and biodigital mental health for insomnia | Y CombinatorS23 | Active | checked 2026-08-23 |
| StradaAI AI agents that run insurance operations | Vertical AI agentsAI agents for insurance operations | Y CombinatorS23 | Active | checked 2026-08-23 |
| Structured LabsAI The publishing layer for the agentic internet | Developer toolsAI-assisted technical documentation platform | Y CombinatorS23 | Inactive | checked 2026-08-23 |
| StuddyAI An AI math tutor for every student | ConsumerAI math tutor for students | Y CombinatorS23 | Active, new domain | 2026-08-23 |
| SubsetsAI AI-driven Retention Automation for subscription media businesses. | B2B SaaSAI lifecycle automation for subscription media | Y CombinatorS23 | Active | checked 2026-08-23 |
| sudocodeAI orchestrate your coding agents with sudocode | Agent infrastructureAI agent orchestration and context management | Y CombinatorS23 | Site unreachable | checked 2026-08-17 |
| SuperGaming Building India's Gaming Revolution | Consumermultiplayer gaming studio | a16z speedrunSR001 | Active | checked 2026-08-23 |
| Surface LabsAI Building the AI-powered marketing ops platform that turns website⌠| Vertical AI agentsAI lead capture and qualification for B2B | Y CombinatorS23 | Active | checked 2026-08-23 |
| SweepAI The best AI coding assistant for JetBrains | Developer toolsAI coding assistant for JetBrains IDEs | Y CombinatorS23 | Active | checked 2026-08-23 |
| Sweetspot AI for Government Contracting. | B2B SaaSGovernment contracting platform | Y CombinatorS23 | Active | checked 2026-08-23 |
| Synch Supercharging Sales | B2B SaaSSales operations platform | Y CombinatorS23 | Inactive | checked 2026-08-17 |
| SyntheticFi The cheapest way to borrow money | FintechRIA-enabled lending platform | Y CombinatorS23 | Active | checked 2026-08-23 |
| TalcAI Event extraction for Medical Researchers | Data for AImedical EHR event extraction | Y CombinatorS23 | Active | checked 2026-08-23 |
| Talofa Games Talofa is building Roblox for Fitness. Our platform makes it simple for creators to develop fitness games for Gen Z. | Consumerfitness gaming platform | a16z speedrunSR001 | Active | checked 2026-08-23 |
| Tastee Tape Truly sustainable packaging, even edible | OtherSustainable edible packaging | SOSVSOSV IndieBio NY 08 | Active | checked 2026-08-23 |
| Tempo Visual Editor for React, powered by AI | Developer toolsAI-powered visual React editor | Y CombinatorS23 | Active | checked 2026-08-23 |
| Terminal Plaid for Telematics Data in Commercial Trucking | Commerce and marketplacestelematics data infrastructure for logistics | Y CombinatorS23 | Active | checked 2026-08-23 |
| Terracotta AIAI AI-powered Infrastructure as Code PR reviews | Developer toolsAI code review for Infrastructure as Code | Y CombinatorS23 | Active | checked 2026-08-23 |
| The Possible CompanyAI Turn your story into a short, animated movie in minutes. Resurrect old blogs, augment your Substack, or prototype your movie pitch. | ConsumerAI storytelling and movie creation for writers | a16z speedrunSR001 | Active | checked 2026-08-23 |
| Tiptap The open-source document editor for humans and AI agents. | Developer toolsOpen-source collaborative document editor framework | Y CombinatorS23 | Active | checked 2026-08-23 |
| Torbie Crafting worlds, connecting hearts | Consumercooperative multiplayer games | a16z speedrunSR001 | Active | checked 2026-08-23 |
| Trainy Infrastructure for managing GPU clusters for training/serving. | AI infra and computeGPU cluster scheduling and orchestration | Y CombinatorS23 | Active | checked 2026-08-23 |
| Trass Games Trass Games is building the next-generation social UGC platform in VR with Yeepsâa top 10 Meta Quest game that blends the creativity of Minecraft and Roblox with the energy of Gorilla Tag. | Consumersocial VR gaming platform | a16z speedrunSR001 | Active | checked 2026-08-23 |
| Trayd A construction payroll and compliance platform built for specialty⌠| B2B SaaSConstruction payroll and compliance | Y CombinatorS23 | Active | checked 2026-08-23 |
| Tremor The UI toolkit for Dashboards | Developer toolsDashboard UI component library | Y CombinatorS23 | Acquired | checked 2026-08-23 |
| truemetricsAI We show couriers where to park and enter a building. | Commerce and marketplaceslast-mile delivery optimization | Y CombinatorS23 | Active | checked 2026-08-23 |
| Twenty Open Source CRM | B2B SaaSopen source CRM platform | Y CombinatorS23 | Active | checked 2026-08-23 |
| TwineAI ai revenue engine for service businesses | Vertical AI agentsAI revenue operations for service businesses | Y CombinatorS23 | Active | checked 2026-08-23 |
| UnhazeAI The right leads at the right time for B2B sales | B2B SaaSAI-powered lead prioritization for sales | Y CombinatorS23 | Inactive | checked 2026-08-17 |
| Unleashed Games Making Games that Bring People Together | ConsumerAI-powered family gaming platform | a16z speedrunSR001 | Active | checked 2026-08-23 |
| UpstreamAI The first inbox designed for humans and agents | Horizontal AI assistantsAI email agent assistant | Y CombinatorS23 | Active | checked 2026-08-23 |
| UthanaAI Foundational models for human motion. | Developer tools3D animation and motion generation tools | a16z speedrunSR001 | Active | checked 2026-08-23 |
| Vango AIAI Development platform that makes it 10x easier to improve visual models | Developer toolsVisual model evaluation platform | Y CombinatorS23 | Inactive | checked 2026-08-17 |
| VaultPay Digital banking platform for the 30 million smartphone users in DRC. | FintechMobile banking for emerging markets | Y CombinatorS23 | Active | checked 2026-08-23 |
| VectorShiftAI AI Operating System for Private Market Investors | Vertical AI agentsAI operating system for private equity | Y CombinatorS23 | Active | checked 2026-08-23 |
| Venta AIAI The compliant AI colleague for sales teams in Europe | Vertical AI agentsAI sales outreach assistant for EU teams | Y CombinatorS23 | Active | checked 2026-08-23 |
| VetRecAI AI Scribe for veterinarians. Saving time and improving patient care. | Vertical AI agentsAI scribe for veterinary clinics | Y CombinatorS23 | Active | checked 2026-08-23 |
| VizlyAI Data to insights in seconds | Data for AIAI-powered data visualization and analysis | Y CombinatorS23 | Inactive | checked 2026-08-17 |
| Voidpet Emotion Monsters | Consumermobile RPG collectibles game | a16z speedrunSR001 | Active | checked 2026-08-23 |
| Watto AIAI AI-powered McKinsey-quality reports in seconds | Vertical AI agentsAI-powered business report generation | Y CombinatorS23 | Acquired | checked 2026-08-17 |
| Wattson HealthAI AI Voice and SMS Agents for Healthcare | Vertical AI agentsAI voice agents for healthcare administrative tasks | Y CombinatorS23 | Active | checked 2026-08-23 |
| WebhoundAI Long-horizon research agents | Horizontal AI assistantsLong-horizon research automation | Y CombinatorS23 | Active | checked 2026-08-23 |
| Windwalk Own your community data and unlock growth and monetization. | B2B SaaScommunity platform for fandoms | a16z speedrunSR001 | Active | checked 2026-08-23 |
| Xeol Close your outdated dependency attack vector | Security and complianceEnd-of-life software vulnerability management | Y CombinatorS23 | Acquired | checked 2026-08-23 |
| Y/n Play your story | ConsumerInteractive storytelling app | Y CombinatorS23 | Active | checked 2026-08-23 |
| Zelos Cloud The Data Platform for MissionâCritical Systems | Robotics and physical worldmission-critical systems data platform | Y CombinatorS23 | Active | checked 2026-08-23 |
| Zibra AIAI AI-Native Infrastructure for Spatial AI | AI infra and compute3D data compression for spatial AI | a16z speedrunSR001 | Active | checked 2026-08-23 |