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 |
|---|---|---|---|---|
| RightNowAI Enabling Model-Hardware Co-Design at Scale | AI infra and computeGPU inference optimization and serverless deployment | Y CombinatorF26 | Active | checked 2026-08-23 |
| VoreliosAI AI that simulates physics 1000x faster | AI infra and computePhysics simulation acceleration | Y CombinatorF26 | Active | checked 2026-08-23 |
| Atomarine Floating nuclear powered data centers at sea. | AI infra and computeoffshore nuclear powered data centers | Y CombinatorS26 | Active | checked 2026-08-23 |
| BaudAI AI chips for ultra-fast model training and inference | AI infra and computeAI training and inference chips | Y CombinatorS26 | Active | checked 2026-08-23 |
| BelvedirAI The easiest way to make private AI models. | AI infra and computePrivate model training and optimization infrastructure | Y CombinatorS26 | Active | checked 2026-08-23 |
| Computable Buy, sell, and redeem GPU hours for any week with instant liquidity | AI infra and computeGPU hours marketplace | Y CombinatorS26 | Active | checked 2026-08-23 |
| ConiferAI Least cost routing system to reduce 80%+ token spend | AI infra and computecost optimization and model routing | Y CombinatorS26 | Active | checked 2026-08-23 |
| Dipole LabsAI AI-controlled optical switching for AI clusters | AI infra and computeAI cluster optical switching hardware | Y CombinatorS26 | Active | checked 2026-08-23 |
| EdotEnvAI A Quant Neolab building self-improving agents from quant trading | AI infra and computeRL training environments for quantitative research | Y CombinatorS26 | Active | checked 2026-08-23 |
| Experiential LabsAI Open source OpenRouter that turns your traffic into a better model | AI infra and computeModel optimization and cost reduction | Y CombinatorS26 | Active | checked 2026-08-23 |
| Induction LabsAI Building intellectually curious AI | AI infra and computeCurious foundation models | Y CombinatorS26 | Active | checked 2026-08-23 |
| Lamb LabsAI Lightning fast chips with hardcoded AI models | AI infra and computeAI inference acceleration hardware | Y CombinatorS26 | Active | checked 2026-08-23 |
| OpenRelayAI Distributed, hardware-agnostic AI inference | AI infra and computedistributed inference platform | Y CombinatorS26 | Active | checked 2026-08-23 |
| ParasmaAI Training human brain cells for AI compute | AI infra and computeBiological neural compute substrate | 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 |
| Standard MachinesAI Teaching AI to Design Chips | AI infra and computeRL environments for chip design | 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 |
| 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 |
| 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 |
| Expanse Unlock wasted GPU capacity. | AI infra and computeGPU utilization and workload optimization | Y CombinatorX26 | Active | checked 2026-08-23 |
| InterfazeAI AI model built for high accuracy deterministic tasks | AI infra and computeSpecialized AI model architecture | Y CombinatorX26 | Active | checked 2026-08-23 |
| KugelAudioAI Kugel is an on-prem Voice AI model supporting 30+ languages | AI infra and computemultilingual on-prem TTS inference | Y CombinatorX26 | Active | checked 2026-08-23 |
| Lamina LabsAI Near-real-time video infrastructure for LLMs | AI infra and computeReal-time video generation infrastructure | Y CombinatorX26 | Active | checked 2026-08-23 |
| Miso LabsAI Emotive foundation voice models | AI infra and computeEmotive voice foundation models | Y CombinatorX26 | Active | checked 2026-08-23 |
| SazabiAI The AI-native observability platform for fast-moving engineering teams | AI infra and computeAI-native observability and monitoring | Y CombinatorX26 | Active | checked 2026-08-23 |
| Zibra Labs Distributed runtime for AI workloads at scale | AI infra and computedistributed compute for AI workloads | Y CombinatorX26 | Active | checked 2026-08-23 |
| AxionOrbital SpaceAI Foundation models for 24/7 Earth Observation | AI infra and computeFoundation models for satellite imagery | Y CombinatorW26 | Active | checked 2026-08-23 |
| Carrot LabsAI AI Cost Management: Track and attribute AI spend across every provider | AI infra and computeAI spend management and optimization | Y CombinatorW26 | Active | checked 2026-08-23 |
| CascadeAI Distilling Proprietary Intelligence | AI infra and computeModel fine-tuning and optimization | Y CombinatorW26 | Active | checked 2026-08-17 |
| Confluence LabsAI AI models that learn from experience | AI infra and computeAI models for data-sparse learning | Y CombinatorW26 | Active | checked 2026-08-23 |
| Cumulus LabsAI The Fastest Multimodal Inference OS | AI infra and computeMultimodal inference OS platform | Y CombinatorW26 | Active | checked 2026-08-23 |
| NdeaAI Building AGI that can innovate. | AI infra and computefrontier AI systems and reasoning | Y CombinatorW26 | Active | checked 2026-08-23 |
| Overshoot AI Infra for real-time vision applications | AI infra and computeReal-time vision inference platform | Y CombinatorW26 | Active | checked 2026-08-23 |
| Piris Labs The Networking Layer of AI | AI infra and computephotonic networking for AI compute | Y CombinatorW26 | Active | checked 2026-08-23 |
| Polymorph Building secure polymorphic apps | AI infra and computePolymorphic application security | Y CombinatorW26 | Active | checked 2026-08-23 |
| Synthetic SciencesAI Infrastructure for Autonomous Science | AI infra and computeRL training for scientific agents | Y CombinatorW26 | Active | checked 2026-08-23 |
| Visibl Semiconductors A faster, lower cost path to custom silicon | AI infra and computecustom silicon design automation | Y CombinatorW26 | Active | checked 2026-08-23 |