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 |
|---|---|---|---|---|
| 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 |