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 |
|---|---|---|---|---|
| Argument Computer Corporation Accelerate verifiable computing | AI infra and computeZero-knowledge proof infrastructure | Y CombinatorW22 | Active | checked 2026-08-23 |
| Cerebrium Serverless Infrastructure Platform for AI | AI infra and computeServerless GPU inference platform | Y CombinatorW22 | Active | checked 2026-08-23 |
| Enlightra Multicolor lasers for ultrafast data transmission | AI infra and computeoptical computing hardware infrastructure | Y CombinatorW22 | Active | checked 2026-08-23 |
| Hydra Serverless Analytics on Postgres | AI infra and computeServerless analytics database for Postgres | Y CombinatorW22 | Acquired | checked 2026-08-17 |
| Lexter.aiAI LLM for Legal in Brazil | AI infra and computeLegal domain LLM for Brazil | Y CombinatorW22 | Active | checked 2026-08-23 |
| NyckelAI Classify Anything | AI infra and computeML platform and model training API | Y CombinatorW22 | Active | checked 2026-08-23 |
| PloomberAI Heroku for AI | AI infra and computeAI application deployment platform | Y CombinatorW22 | Inactive | checked 2026-08-17 |
| Strong ComputeAI 10x-1000x faster compute for Neural Network training | AI infra and computeNeural network training acceleration | Y CombinatorW22 | Active | checked 2026-08-23 |
| Ferveret Nuclear-inspired cooling that turns wasted power into more AI compute | AI infra and computedata center cooling hardware | Y CombinatorS21 | Active | checked 2026-08-23 |
| MindPortalAI Thought-to-Language AI Models | AI infra and computeBrain-computer interface AI models | Y CombinatorW21 | Inactive | checked 2026-08-23 |
| Mystic Low latency API to run and deploy ML models | AI infra and computeML model serving and inference | Y CombinatorW21 | Site unreachable | checked 2026-08-17 |
| OllamaAI Get up and running with large language models. | AI infra and computeLocal LLM inference runtime | Y CombinatorW21 | Active | checked 2026-08-23 |
| KeyDB The only database you'll ever need | AI infra and computeIn-memory database with flash persistence | Y CombinatorS20 | Acquired | checked 2026-08-23 |
| QuestDB High-performance time series database | AI infra and computetime series database infrastructure | Y CombinatorS20 | Active | checked 2026-08-23 |
| AtmoAI Ultra-precise AI weather forecasting. | AI infra and computeAI weather forecasting infrastructure | Y CombinatorW20 | Active | checked 2026-08-23 |
| Fly.io Run full stack apps close to your users. | AI infra and computedistributed app deployment infrastructure | Y CombinatorW20 | Active | 2026-07-29 |
| ReplicateAI Run machine learning models in the cloud | AI infra and computeModel serving and inference API | Y CombinatorW20 | Acquired | checked 2026-08-23 |
| TermiiAI Termii is an AI-native reliability infrastructure company. | AI infra and computeAI-powered transaction reliability infrastructure | Y CombinatorW20 | Active | checked 2026-08-23 |
| Kern Systems Using DNA to store data. | AI infra and computeDNA data storage infrastructure | Y CombinatorS19 | Active | checked 2026-08-23 |
| TensilAI We turn machine learning models into custom hardware. | AI infra and computeML hardware accelerator design | Y CombinatorS19 | Inactive | 2026-08-23 |
| Vorticity The Fastest Scientific Computing Platform on the Planet | AI infra and computeScientific computing simulation platform | Y CombinatorS19 | Active | checked 2026-08-23 |
| Wasmer The Operating System for Edge Computing | AI infra and computeWebAssembly runtime and edge compute infrastructure | Y CombinatorS19 | Active | checked 2026-08-23 |
| AuroraQ Building the first practical, integrated quantum computer. | AI infra and computeQuantum computing hardware integration | Y CombinatorW19 | Inactive | checked 2026-08-23 |
| Rain Neuromorphics We build artificial intelligence processors inspired by the brain. | AI infra and computeNeuromorphic AI processor hardware | Y CombinatorS18 | Acquired | checked 2026-08-17 |
| Vathys Accelerating machine learning through software | AI infra and computeDeep learning software acceleration | Y CombinatorW18 | Inactive | checked 2026-08-24 |
| VoiceryAI Automated voice acting and emotive speech synthesis with deep neural… | AI infra and computespeech synthesis and voice generation | Y CombinatorW18 | Inactive | checked 2026-08-23 |
| AssemblyAIAI The best way to build Voice AI apps | AI infra and computeSpeech-to-text and voice understanding API | Y CombinatorS17 | Active | checked 2026-08-23 |
| LyrebirdAI Our tech speaks for itself. | AI infra and computeSpeech synthesis API for developers | Y CombinatorS17 | Acquired | 2026-08-23 |
| FloydHub ML Platform for developing, training and deploying ML models | AI infra and computeML model training and deployment platform | Y CombinatorW17 | Inactive | checked 2026-08-17 |
| Peer5 P2P delivery network that enables high quality video streaming | AI infra and computeP2P video delivery network | Y CombinatorW17 | Acquired | checked 2026-08-17 |
| Terark Fastest Storage Engine with the Best Compression, we enables direct… | AI infra and computeDatabase storage engine and compression | Y CombinatorW17 | Acquired | checked 2026-08-17 |
| Veryfi, Inc.AI Document AI. One API Call. | AI infra and computeDocument extraction and fraud detection API | Y CombinatorW17 | Active | checked 2026-08-24 |
| CrowdAIAI CrowdAI is the world's leading no-code platform for vision AI | AI infra and computeVision AI platform and model training | Y CombinatorS16 | Acquired | checked 2026-08-17 |
| Mosaix.aiAI Mosaix builds the NLP for the local languages at the emerging markets. | AI infra and computeNLP platform for emerging markets | Y CombinatorS16 | Inactive | checked 2026-08-17 |
| NeoWizeAI NeoWize created a new type of machine learning algorithm and uses it… | AI infra and computemachine learning algorithms and data generation | Y CombinatorS16 | Acquired | checked 2026-08-17 |
| DeepgramAI Building foundational AI for speech transcription and understanding. | AI infra and computeSpeech AI infrastructure and APIs | Y CombinatorW16 | Active | checked 2026-08-23 |
| Protonet Protonet provides the easiest way for a small business to run its own… | AI infra and computeSmall business cloud infrastructure | Y CombinatorW16 | Site unreachable | checked 2026-08-17 |
| Reduced Energy Microsystems Building the lowest-power silicon for embedded deep learning and… | AI infra and computelow-power edge AI silicon | Y CombinatorS15 | Inactive | checked 2026-08-17 |
| Nextop Nextop optimizes the path between your app and backend. Client… | AI infra and computemobile CDN and network optimization | Y CombinatorW15 | Inactive | checked 2026-08-17 |
| Paperspace Paperspace is a cloud platform for building and scaling AI… | AI infra and computeGPU cloud platform for AI | Y CombinatorW15 | Acquired | checked 2026-08-23 |
| Raven TechAI Our vision is to build the next generation of iOS or Android, to… | AI infra and computeNext-generation OS with AI | Y CombinatorW15 | Acquired | checked 2026-08-17 |
| SigOpt SigOpt is an Optimization-as-a-Service platform that seamlessly tunes… | AI infra and computeML hyperparameter optimization platform | Y CombinatorW15 | Acquired | 2026-08-23 |
| Protocol Labs Protocol Labs makes internet protocols: IPFS, Filecoin, and more. | AI infra and computeDecentralized data infrastructure protocols | Y CombinatorS14 | Active | 2026-08-23 |
| Rigetti Computing Quantum coherent supercomputing. | AI infra and computeQuantum computing infrastructure | Y CombinatorS14 | Public company | checked 2026-08-23 |
| GoScale Dynamical Scaling Virtual Machines as a Service | AI infra and computedynamic VM scaling and optimization | Y CombinatorS12 | Inactive | checked 2026-08-23 |
| Rescale High Performance Computing Built for the Cloud | AI infra and computeCloud HPC and simulation platform | Y CombinatorW12 | Active | checked 2026-08-23 |
| Citus Data Real-time. Big data. PostgreSQL | AI infra and computePostgreSQL scaling and distributed database | Y CombinatorS11 | Acquired | checked 2026-08-23 |
| Compose We make it easy to run databases. PostgreSQL, Redis, MongoDB,… | AI infra and computemanaged database hosting platform | Y CombinatorS11 | Acquired | checked 2026-08-17 |
| SingleStore The cloud-native, operational database built for speed and scale. | AI infra and computeDistributed database for real-time analytics | Y CombinatorW11 | Active | checked 2026-08-23 |
| Zencoder Video Encoding API, Open source video player (video.js) | AI infra and computevideo encoding API infrastructure | Y CombinatorW10 | Acquired | 2026-08-23 |
| RethinkDB The open source database for the realtime web. | AI infra and computerealtime database engine | Y CombinatorS09 | Acquired | checked 2026-08-23 |
| Clustrix | AI infra and computescale-out relational database | Y CombinatorW06 | Acquired | 2026-08-23 |