Open source focus
Open Source Alternatives to Capstone Green Energy Holdings
60 open source Clean Energy options similar to Capstone Green Energy Holdings, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Each profile notes license and self-hosting where we have it.
Aemetis15Climate TechCupertino, United StatesOpen source · Self-hostable
Ayrton EnergyClean EnergyCalgary, CanadaOpen source
Nebius85NeocloudAmsterdam, Netherlands$6.3BOpen source
Crusoe Energy67Energy & Climate TechDenver, United States$610.0MOpen source
Anaergia63Energy & Climate TechBurlington, CanadaOpen source
GreyOrange61RoboticsAtlanta, United StatesOpen source
CaPow55RoboticsTel Aviv, Israel$7.5MOpen source
Glow Power54Energy ProcurementSan Francisco, United KingdomOpen source
energyXL53Clean EnergyAustin, United States$154.5MOpen source
H2Pro53WaterTel Aviv, IsraelOpen source
Vivint Solar52Solar EnergyLehi, United StatesOpen source
Crusoe Cloud - AI Infrastructure and GPU Cloud Platform48AI InfrastructureDenver, United StatesOpen source
Visionz Tech42Computer VisionTel Aviv, Israel$12.0MOpen source
SmartGreen37IndustrialTel Aviv, Israel$3.0MOpen source
Arbel AI34Industrial AutomationEven Yehuda, IsraelOpen source
- NONova Sky33Drone TechnologyLondon, United Kingdom$29.5M
Open source
Ourea Energy .25Energy StorageLondon, United KingdomOpen source
PlastocAI InfrastructureOpen source
VAST Data85StorageNew York, United States$881.0MOpen source
D.A.A. Tech85Environmental ConsultingWindsor, United StatesOpen source
Databricks82Data AnalyticsSan Francisco, United States$31.7BOpen source · Self-hostable
Arm Holdings plc77Semiconductor DesignCambridge, United Kingdom$35.9BOpen source
Together AI76AI InfrastructureSan Francisco, United States$906.0MOpen source · Self-hostable
NemoClaw75Artificial IntelligenceOpen source · Self-hostable
Neon72DatabaseSan Francisco, United States$1.2BOpen source
Exotec70RoboticsLyon, FranceOpen source
OpenRouter70InfrastructureSan Francisco, United States$153.5MOpen source
WekaIO70ComputingCampbell, United States$565.0MOpen source
DeepSeek AI70AI InfrastructureBeijing, ChinaOpen source
Netlify69Developer ToolsSan Francisco, United States$202.1MOpen source
Teleport69CybersecurityOakland, United States$190.0MOpen source
Pinecone69AI InfrastructureSan Francisco, United States$138.0MOpen source
Hailo69Edge ComputingTel Aviv, Israel$425.0MOpen source
Stripes AI68FintechSouth San Francisco, United States$25.4MOpen source
Percepto67DronesTel Aviv, Israel$136.8MOpen source
Landa Digital Printing673D PrintingRehovot, Israel$435.0MOpen source
Starburst67AIBoston, United States$414.0MOpen source · Self-hostable
SiFive66AI ChipSan Jose, United States$774.9MOpen source
Weights & Biases66AI InfrastructureSan Francisco, United StatesOpen source
Daytona66AI InfrastructureNew York, United States$46.0MOpen source
Solo.io66Artificial IntelligenceCambridge, USA$174.8MOpen source · Self-hostable
Arize AI65AI ObservabilityBerkeley, United StatesOpen source
Habana Labs64ComputingTel Aviv, Israel$105.0MOpen source
RAD Security64CybersecurityTel Aviv, Israel$29.0MOpen source
ClearML64AutoMLTel Aviv, Israel$11.0MOpen source · Self-hostable
Vultr63NeocloudHerndon, United States$662.0MOpen source
Candid Intelligence, Inc.63Construction TechSan Francisco, United States$207.0MOpen source
Aerospike63DatabaseSunnyvale, United States$161.0MOpen source
Domino Data Lab, Inc.63AI GovernanceNew York, United States$100.5MOpen source
Bright Data63Web Data PlatformTel Aviv, Israel$34.0MOpen source
Weights & Biases (W&B)63MLOpsSan Francisco, United States$521.0MOpen source
Cast AI63MLOpsTel Aviv, Israel$44.0MOpen source
Airweave63Agentic AISan Francisco, United States$6.0MOpen source · Self-hostable
Hyperstack62GPU-as-a-ServiceLondon, United KingdomOpen source
RadixArk62Artificial IntelligencePalo Alto, USA$20.0MOpen source
JuliaHub62Artificial IntelligenceWaltham, USA$65.0MOpen source
Normal Computing62Artificial IntelligenceNew York, United States$50.0MOpen source
LangChain61Agentic AISan Francisco, United States$260.0MOpen source
Cribl61Data ManagementSan Francisco, USA$715.4MOpen source
Kinetica AI61Data AnalyticsSan Francisco, United States$240.0MOpen source
| Company | Sector | License | HQ | Funding | Score |
|---|---|---|---|---|---|
| Aemetis | Climate Tech | Open source · Self-hostable | Cupertino, United States | — | 15 |
| Ayrton Energy | Clean Energy | Open source | Calgary, Canada | — | — |
| Nebius | Neocloud | Open source | Amsterdam, Netherlands | $6.3B | 85 |
| Crusoe Energy | Energy & Climate Tech | Open source | Denver, United States | $610.0M | 67 |
| Anaergia | Energy & Climate Tech | Open source | Burlington, Canada | — | 63 |
| GreyOrange | Robotics | Open source | Atlanta, United States | — | 61 |
| CaPow | Robotics | Open source | Tel Aviv, Israel | $7.5M | 55 |
| Glow Power | Energy Procurement | Open source | San Francisco, United Kingdom | — | 54 |
| energyXL | Clean Energy | Open source | Austin, United States | $154.5M | 53 |
| H2Pro | Water | Open source | Tel Aviv, Israel | — | 53 |
| Vivint Solar | Solar Energy | Open source | Lehi, United States | — | 52 |
| Crusoe Cloud - AI Infrastructure and GPU Cloud Platform | AI Infrastructure | Open source | Denver, United States | — | 48 |
| Visionz Tech | Computer Vision | Open source | Tel Aviv, Israel | $12.0M | 42 |
| SmartGreen | Industrial | Open source | Tel Aviv, Israel | $3.0M | 37 |
| Arbel AI | Industrial Automation | Open source | Even Yehuda, Israel | — | 34 |
| NONova Sky | Drone Technology | Open source | London, United Kingdom | $29.5M | 33 |
| Ourea Energy . | Energy Storage | Open source | London, United Kingdom | — | 25 |
| Plastoc | AI Infrastructure | Open source | — | — | — |
| VAST Data | Storage | Open source | New York, United States | $881.0M | 85 |
| D.A.A. Tech | Environmental Consulting | Open source | Windsor, United States | — | 85 |
| Databricks | Data Analytics | Open source · Self-hostable | San Francisco, United States | $31.7B | 82 |
| Arm Holdings plc | Semiconductor Design | Open source | Cambridge, United Kingdom | $35.9B | 77 |
| Together AI | AI Infrastructure | Open source · Self-hostable | San Francisco, United States | $906.0M | 76 |
| NemoClaw | Artificial Intelligence | Open source · Self-hostable | — | — | 75 |
| Neon | Database | Open source | San Francisco, United States | $1.2B | 72 |
| Exotec | Robotics | Open source | Lyon, France | — | 70 |
| OpenRouter | Infrastructure | Open source | San Francisco, United States | $153.5M | 70 |
| WekaIO | Computing | Open source | Campbell, United States | $565.0M | 70 |
| DeepSeek AI | AI Infrastructure | Open source | Beijing, China | — | 70 |
| Netlify | Developer Tools | Open source | San Francisco, United States | $202.1M | 69 |
| Teleport | Cybersecurity | Open source | Oakland, United States | $190.0M | 69 |
| Pinecone | AI Infrastructure | Open source | San Francisco, United States | $138.0M | 69 |
| Hailo | Edge Computing | Open source | Tel Aviv, Israel | $425.0M | 69 |
| Stripes AI | Fintech | Open source | South San Francisco, United States | $25.4M | 68 |
| Percepto | Drones | Open source | Tel Aviv, Israel | $136.8M | 67 |
| Landa Digital Printing | 3D Printing | Open source | Rehovot, Israel | $435.0M | 67 |
| Starburst | AI | Open source · Self-hostable | Boston, United States | $414.0M | 67 |
| SiFive | AI Chip | Open source | San Jose, United States | $774.9M | 66 |
| Weights & Biases | AI Infrastructure | Open source | San Francisco, United States | — | 66 |
| Daytona | AI Infrastructure | Open source | New York, United States | $46.0M | 66 |
| Solo.io | Artificial Intelligence | Open source · Self-hostable | Cambridge, USA | $174.8M | 66 |
| Arize AI | AI Observability | Open source | Berkeley, United States | — | 65 |
| Habana Labs | Computing | Open source | Tel Aviv, Israel | $105.0M | 64 |
| RAD Security | Cybersecurity | Open source | Tel Aviv, Israel | $29.0M | 64 |
| ClearML | AutoML | Open source · Self-hostable | Tel Aviv, Israel | $11.0M | 64 |
| Vultr | Neocloud | Open source | Herndon, United States | $662.0M | 63 |
| Candid Intelligence, Inc. | Construction Tech | Open source | San Francisco, United States | $207.0M | 63 |
| Aerospike | Database | Open source | Sunnyvale, United States | $161.0M | 63 |
| Domino Data Lab, Inc. | AI Governance | Open source | New York, United States | $100.5M | 63 |
| Bright Data | Web Data Platform | Open source | Tel Aviv, Israel | $34.0M | 63 |
| Weights & Biases (W&B) | MLOps | Open source | San Francisco, United States | $521.0M | 63 |
| Cast AI | MLOps | Open source | Tel Aviv, Israel | $44.0M | 63 |
| Airweave | Agentic AI | Open source · Self-hostable | San Francisco, United States | $6.0M | 63 |
| Hyperstack | GPU-as-a-Service | Open source | London, United Kingdom | — | 62 |
| RadixArk | Artificial Intelligence | Open source | Palo Alto, USA | $20.0M | 62 |
| JuliaHub | Artificial Intelligence | Open source | Waltham, USA | $65.0M | 62 |
| Normal Computing | Artificial Intelligence | Open source | New York, United States | $50.0M | 62 |
| LangChain | Agentic AI | Open source | San Francisco, United States | $260.0M | 61 |
| Cribl | Data Management | Open source | San Francisco, USA | $715.4M | 61 |
| Kinetica AI | Data Analytics | Open source | San Francisco, United States | $240.0M | 61 |