Y Combinator companies
The Y Combinator portfolio as the radar sees it: synced daily, classified into clusters, checked for life and movement. 6,197 companies.
| Company | Cluster | Program | Status | Last signal |
|---|---|---|---|---|
| QokedasAI Data for AI Science | Data for AIsynthetic data from physical signals | Y CombinatorF26 | Active | checked 2026-08-23 |
| Datoric Secure training data shaped by experimentation | Data for AIsecure training data collection | Y CombinatorS26 | Active | checked 2026-08-23 |
| DeepReach Inc. Real-world data network for robots & world models | Data for AIReal-world data collection for robotics | Y CombinatorS26 | Active | checked 2026-08-23 |
| Hebbian RoboticsAI Open source SDK for building quality control pipelines for Physical AI | Data for AIPhysical AI data quality APIs | Y CombinatorS26 | Active | checked 2026-08-23 |
| LyonAI Foundation models on enterprise transaction data. | Data for AIFoundation models on transaction data | Y CombinatorS26 | Active | checked 2026-08-23 |
| MaingenAI Simulating Agents Running Industrial Companies | Data for AIsynthetic data for industrial operations | Y CombinatorS26 | Active | checked 2026-08-23 |
| MarkovAI Data for computer-use ai | Data for AIcomputer-use AI training data | Y CombinatorS26 | Active | checked 2026-08-23 |
| Olam LabsAI Building multi-agent simulations for model evals and training. | Data for AIsynthetic data and model evals via simulations | Y CombinatorS26 | Active | checked 2026-08-23 |
| Petrarch Internal industrial company data for frontier labs | Data for AIEnterprise data marketplace | Y CombinatorS26 | Active | checked 2026-08-23 |
| Praxis Robotics Turns every company into a data vendor | Data for AIReal-world industrial training data collection | Y CombinatorS26 | Site unreachable | checked 2026-08-17 |
| StudioAI Engineer the future | Data for AIMarket behavior prediction and simulation | Y CombinatorS26 | 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 |
| Hub Real-world training data for frontier AI labs and robotics. | Data for AIReal-world multimodal data for AI | Y CombinatorX26 | Active | checked 2026-08-23 |
| NetterAI AI native Palantir for mid market. | Data for AIAI-powered data integration and workflow automation | Y CombinatorX26 | Active | checked 2026-08-23 |
| PerfectBit, Inc.AI Correct by construction AI training data | Data for AIsynthetic data verification for AI training | Y CombinatorX26 | Active | checked 2026-08-23 |
| shotwell.aiAI Annotations for robotics data | Data for AIRobotics data annotation and QA | Y CombinatorX26 | Active | checked 2026-08-23 |
| ARC Prize FoundationAI AI benchmarks that measure general intelligence and inspire new ideas | Data for AIAI benchmarking and evaluation | Y CombinatorW26 | Active | checked 2026-08-23 |
| CaptainAI Accurate, high-performance retrieval for AI agents | Data for AIMultimodal retrieval infrastructure for AI agents | Y CombinatorW26 | Active | checked 2026-08-23 |
| Human Archive Physical AI data lab | Data for AIPhysical world datasets for robotics | Y CombinatorW26 | Active | checked 2026-08-23 |
| Luel Turning everyday words and actions into usable training data. | Data for AItraining data sourcing and licensing | Y CombinatorW26 | Active | checked 2026-08-23 |
| MantisAI Digital Twins of humans | Data for AIsynthetic human behavior simulation | Y CombinatorW26 | Active | checked 2026-08-23 |
| o11 The AI Data Warehouse For Financial Firms | Data for AIAI data warehouse for financial services | Y CombinatorW26 | Active | checked 2026-08-23 |
| Origin AI and Data for Cancer Therapeutics | Data for AIPatient-derived cancer genomics data | Y CombinatorW26 | Active | checked 2026-08-23 |
| ShofoAI The World's Largest Video Library | Data for AIvideo dataset curation and labeling | Y CombinatorW26 | Active | checked 2026-08-23 |
| Travo The brokerage that never sleeps | Data for AIreal estate property data infrastructure | Y CombinatorW26 | Active | checked 2026-08-23 |
| Velum LabsAI The OS for data quality across any stack | Data for AIautomated data quality monitoring | Y CombinatorW26 | Active | checked 2026-08-23 |
| AnswerThisAI End-to-end workspace to accelerate scientific discovery | Data for AIAI research discovery and synthesis | Y CombinatorF25 | Active | checked 2026-08-23 |
| Cortex AIAI Large-scale real-world robot & human data for embodied AI | Data for AIReal-world robot and embodied AI training data | Y CombinatorF25 | Active | checked 2026-08-23 |
| SciloopAI Expert STEM reasoning data for frontier AI labs. | Data for AIExpert STEM synthetic data for AI training | Y CombinatorF25 | Site unreachable | checked 2026-08-23 |
| Specific Labs Real World Environments and Data for AI | Data for AIenterprise audio data collection | Y CombinatorF25 | Active | checked 2026-08-23 |
| Unsiloed AIAI API for parsing multimodal unstructured data | Data for AIMultimodal document parsing and structuring | Y CombinatorF25 | Active | checked 2026-08-23 |
| Channel3AI Database of every product on the internet | Data for AIProduct data infrastructure for commerce | Y CombinatorS25 | Active | checked 2026-08-23 |
| CostreamAI Indexing human dialogue through digital products | Data for AIdialogue data indexing platform | Y CombinatorS25 | Active | checked 2026-08-23 |
| Design ArenaAI World's largest crowdsourced benchmark for AI-generated design | Data for AICrowdsourced AI design evaluation | Y CombinatorS25 | Active | checked 2026-08-23 |
| Liva AI Audio & Video Data | Data for AIsynthetic and real-world speech training data collection | Y CombinatorS25 | Active | checked 2026-08-23 |
| LLM Stats Independent AI evaluations lab | Data for AILLM evaluation and benchmarking | Y CombinatorS25 | Active | checked 2026-08-23 |
| MonarchaAI Turn maps into data | Data for AIMap georeferencing and spatial data extraction | Y CombinatorS25 | Active | checked 2026-08-23 |
| Panels Audio Data for AI Labs | Data for AIspeech data collection for models | Y CombinatorS25 | Active | checked 2026-08-23 |
| Synthetic SocietyAI Synthetic Users to Simulate Real Users | Data for AIsynthetic user data generation | Y CombinatorS25 | Active | checked 2026-08-23 |
| Besimple AI Voice data for AI | Data for AIaudio data collection and annotation | Y CombinatorX25 | Active | checked 2026-08-23 |
| CartpoleAI Building reinforcement learning environments | Data for AIreinforcement learning training environments | Y CombinatorX25 | Active | checked 2026-08-23 |
| Klavis AIAI High Quality Coding & Agentic Data for AI labs | Data for AIAgentic tool-use data for AI labs | Y CombinatorX25 | Active | checked 2026-08-23 |
| Labric The data layer for scientific research | Data for AILab data integration and cleaning | Y CombinatorX25 | Active | checked 2026-08-23 |
| PercivalAI Accelerating data analysis for research | Data for AIAI copilot for research data analysis | Y CombinatorX25 | Inactive | checked 2026-08-23 |
| Rimba Streamlining Data Capture to Report Creation for Heavy Industries | Data for AIData integration and ETL for industrial operations | Y CombinatorX25 | Active | checked 2026-08-23 |
| sieveAI AI + human review to solve data cleaning - accessible via API or Excel | Data for AIAI-powered data cleaning for finance | Y CombinatorX25 | Active | checked 2026-08-23 |
| Sureform Real-world data for multimodal and embodied AI | Data for AIReal-world data collection for robotics | Y CombinatorX25 | Active | checked 2026-08-23 |
| Vision Lab Industrial data layer for robotics training | Data for AIindustrial video data for robotics training | Y CombinatorX25 | Active | checked 2026-08-23 |
| AfterQuery Applied research lab curating data solutions for foundation model… | Data for AIdata curation for foundation models | Y CombinatorW25 | Active | checked 2026-08-23 |
| HUDAI Platform for building RL environments and evals | Data for AIReinforcement learning environment and dataset platform | Y CombinatorW25 | Active | checked 2026-08-17 |
| LopusAI Headless Data Team | Data for AIsemantic layer for trusted AI analytics | Y CombinatorW25 | Active | checked 2026-08-23 |
| Mundo AI High Quality Multilingual Training Data for AI Models | Data for AImultilingual training data collection | Y CombinatorW25 | Active | checked 2026-08-23 |
| Overstand LabsAI Navigate any set of data - no matter how large - in minutes. | Data for AIAI-powered data exploration and analysis platform | Y CombinatorW25 | Active | checked 2026-08-23 |
| AbundantAI Agent simulation and RL for researchers | Data for AIRL simulation and synthetic data generation | Y CombinatorF24 | Active | checked 2026-08-23 |
| Crustdata Real-time B2B data via simple APIs | Data for AIB2B company and people data APIs | Y CombinatorF24 | Active | checked 2026-08-23 |
| AlunaAI Data for biomedical AI | Data for AIBiomedical datasets and evals | Y CombinatorS24 | Active | checked 2026-08-23 |
| bluedoorAI The world's data, ready for AI | Data for AIData APIs for AI models | Y CombinatorS24 | Active | checked 2026-08-23 |
| David AIAI Data for audio AI | Data for AIAudio data collection | Y CombinatorS24 | Active | checked 2026-08-23 |
| Ligo BiosciencesAI Enzyme design models. | Data for AIenzyme design for biotech | Y CombinatorS24 | Active | checked 2026-08-23 |
| PulseAI Production-grade unstructured document extraction | Data for AIunstructured document extraction | Y CombinatorS24 | Active | checked 2026-08-23 |
| Sensei Robotic Training Data at Scale | Data for AIrobotic training data collection | Y CombinatorS24 | Active | checked 2026-08-23 |
| Sepal AIAI Data Development for Advanced AI | Data for AIAI evaluation and training data generation | Y CombinatorS24 | Acquired | checked 2026-08-17 |
| The Synthesis CompanyAI 100x faster scientific evidence synthesis | Data for AIscientific evidence synthesis and research | Y CombinatorS24 | Active | checked 2026-08-23 |
| UndermindAI An AI agent for scientific research | Data for AIAI-powered scientific search and retrieval | Y CombinatorS24 | Active | checked 2026-08-23 |
| Zoa ResearchAI Powerful quantitative forecasting models | Data for AIcross-domain forecasting models | Y CombinatorS24 | Active | checked 2026-08-23 |
| DatacurveAI Frontier coding data for training and evaluating LLMs | Data for AIsynthetic coding data for LLMs | Y CombinatorW24 | Active | checked 2026-08-23 |
| floatingpointAI Datasets and evals to push the frontier of visual intelligence. | Data for AIVision datasets and evals | Y CombinatorW24 | Active | checked 2026-08-23 |
| GlimmerAI AI search for massive PDFs | Data for AIAI-powered document search and retrieval | Y CombinatorW24 | Inactive | checked 2026-08-17 |
| kater.aiAI Deliver complete data analysis from a single question | Data for AIAI-powered analytics and insights | Y CombinatorW24 | Active | checked 2026-08-23 |
| Metofico No Code Data Analysis for Life Science Research | Data for AINo-code data analysis for life sciences | Y CombinatorW24 | Active | checked 2026-08-23 |
| Ocular AIAI Applied AI Data Research Lab Encoding Human Expertise into Machines… | Data for AIhuman expertise encoding and data research | Y CombinatorW24 | Active | checked 2026-08-23 |
| PandasAIAI PandasAI is an open-source conversational data analysis platform with… | Data for AINatural language data querying and analysis | Y CombinatorW24 | Active | checked 2026-08-23 |
| Artie Software that streams data from databases to warehouses in real-time | Data for AIreal-time data streaming to warehouses | Y CombinatorS23 | Active | checked 2026-08-23 |
| Deasy Labs Metadata for GenAI workflows | Data for AImetadata orchestration for AI workflows | Y CombinatorS23 | Acquired | checked 2026-08-23 |
| Fiber AI The freshest data APIs for AI sales, recruiting, & growth products | Data for AIReal-time data APIs for AI applications | Y CombinatorS23 | Active | checked 2026-08-23 |
| MantleBio Transform scientific data into discoveries | Data for AIScientific data pipelines for biotech | Y CombinatorS23 | Inactive | checked 2026-08-23 |
| Maven BioAI The AI Platform for Life Sciences Intelligence | Data for AImarket intelligence for life sciences | Y CombinatorS23 | Active | checked 2026-08-23 |
| PeerDB Fast, native ETL for Postgres 🐘 🚀 | Data for AIPostgres-native CDC and data streaming | Y CombinatorS23 | Acquired | checked 2026-08-23 |
| SIDAI AI research lab for retrieval | Data for AIretrieval and reasoning infrastructure | 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 |
| VizlyAI Data to insights in seconds | Data for AIAI-powered data visualization and analysis | Y CombinatorS23 | Inactive | checked 2026-08-17 |
| CreatorMLAI Foundation Model for Human Attention | Data for AIvideo virality prediction analytics | Y CombinatorW23 | Inactive | checked 2026-08-17 |
| DataSuiteAI Dataset Management for AI Trainers | Data for AIDataset management and collection for model training | Y CombinatorW23 | Site unreachable | checked 2026-08-17 |
| FactIQAI Investment research data for AI agents | Data for AIinvestment research data for AI | Y CombinatorW23 | Active | checked 2026-08-23 |
| Honeydew The home for shared data logic | Data for AIsemantic layer for data validation | Y CombinatorW23 | Active | checked 2026-08-23 |
| Odigos Technologies Inc. Enterprise-Grade OpenTelemetry | Data for AIOpenTelemetry tracing infrastructure | Y CombinatorW23 | Active | checked 2026-08-23 |
| Sherloq One place for all your queries, directly on your SQL editor | Data for AISQL query management and documentation | Y CombinatorW23 | Active | checked 2026-08-23 |
| Airtrain AIAI No-code data curation for LLM fine-tuning and evaluation. | Data for AIData curation for LLM fine-tuning | Y CombinatorS22 | Inactive | checked 2026-08-23 |
| Artemis SearchAI A search technology that actually finds what you’re looking for. | Data for AIsemantic search and retrieval infrastructure | Y CombinatorS22 | Active | checked 2026-08-23 |
| Blockscope Palantir for Web3 | Data for AIblockchain data pipelines and indexing | Y CombinatorS22 | Active | checked 2026-08-23 |
| Denormalized serverless platform for real-time data | Data for AIserverless real-time data platform | Y CombinatorS22 | Inactive | checked 2026-08-23 |
| Grai Open source version control for metadata | Data for AImetadata versioning and lineage tracking | Y CombinatorS22 | Inactive | 2026-07-30 |
| Lamin Open data platform for traceable, multimodal AI | Data for AIBiology data lakehouse and lineage | Y CombinatorS22 | Active | checked 2026-08-23 |
| Metriport Open-Source Platform for Healthcare Data Intelligence | Data for AIHealthcare data interoperability platform | Y CombinatorS22 | Active | checked 2026-08-23 |
| MovingLake Realtime Data Connectors | Data for AIReal-time event data connectors | Y CombinatorS22 | Active | checked 2026-08-23 |
| Neosync Neosync is an open-source anonymization and synthetic data platform. | Data for AIsynthetic data generation platform | Y CombinatorS22 | Acquired | checked 2026-08-17 |
| NewsCatcherAI Turning the web into a structured database of real world events. | Data for AIweb data extraction and structuring | Y CombinatorS22 | Active | checked 2026-08-23 |
| Superpowered AIAI API for Retrieval Augmented Generation | Data for AIRAG infrastructure for LLM applications | Y CombinatorS22 | Inactive | checked 2026-08-17 |
| Bracket Two-way syncs between business tools and your database | Data for AIData synchronization and integration middleware | Y CombinatorW22 | Acquired | checked 2026-08-17 |
| Elementary Open-source data observability for data teams | Data for AIdata observability and monitoring | Y CombinatorW22 | Active | checked 2026-08-23 |