Open source focus
Open Source Alternatives to Third Grid
46 open source Energy Tech options similar to Third Grid, 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.
Voltfang40EV ChargingBerlin, Germany$15.0MOpen source
SmartGreen37IndustrialTel Aviv, Israel$3.0MOpen source
GridhelixAI-Driven Grid BalancingLondon, United KingdomOpen source
Suena Energy35Energy & Climate TechTel Aviv, Israel$10.1MOpen source
Intellivolt35EV ChargingLondon, United KingdomOpen source
Aemetis15Climate TechCupertino, United StatesOpen source · Self-hostable
Crusoe Energy67Energy & Climate TechDenver, United States$610.0MOpen source
ecobee63Smart HomeToronto, Canada$96.0MOpen source
Sitetracker61Infrastructure ManagementBerkeley, United States$42.0MOpen source
GreencognitionClimate TechOpen source
GridvanceEnergy & Climate TechOpen source
D.A.A. Tech85Environmental ConsultingWindsor, United StatesOpen source
Percepto67DronesTel Aviv, Israel$136.8MOpen source
Candid Intelligence63Construction TechSan Francisco, United States$207.0MOpen source
Tomorrow.io62WeatherBoston, United States$259.0MOpen source
- SESempra Energy60UtilitiesSan Diego, United States
Open source
EOS Data Analytics60AgTechKyiv, UkraineOpen source
Nordic Salt Cycle55Climate TechHelsinki, Finland$41.8MOpen source
Algaeing55TextileTel Aviv, Israel$12.0MOpen source
EnergyX54Energy & Climate TechAustin, United StatesOpen source
Aura Aero54AerospaceToulouse, France$340.0MOpen source
EarthDaily Analytics54Earth ObservationVancouver, CanadaOpen source
Halo Digital53AI Enablers$11.0MOpen source
H2Pro53WaterTel Aviv, IsraelOpen source
- QUQuantumScape52Energy TechSan Jose, United States$1.3B
Open source
SolCold50CleantechTel Aviv, IsraelOpen source
Collos48Climate TechBoston, United States$1.1MOpen source
Crusoe Cloud - AI Infrastructure and GPU Cloud Platform48AI InfrastructureDenver, United StatesOpen source
Re Sustainability47SustainabilityNew York, United States$1.5MOpen source
Caudal Energy42Renewable EnergyOxford, United Kingdom$5.3MOpen source
Netomnia40Telecom InfrastructureLondon, United Kingdom$1.7BOpen source
Arbel AI34Industrial AutomationEven Yehuda, IsraelOpen source
Aeoradar33AI InfrastructureTel Aviv, Israel$1.5MOpen source
WeatherXM33Climate TechAthens, GreeceOpen source
Cipher Mining25Bitcoin MiningNew York, United States$1.8BOpen source
Ourea Energy .25Energy StorageLondon, United KingdomOpen source
Marine Hound21Climate TechValletta, MaltaOpen source
Earth Observing System20Geospatial DataKyiv, UkraineOpen source
- TXTXU Energy10EnergyIrving, United States
Open source
everwave0Climate TechHamburg, GermanyOpen source
FleetbeastFleet ManagementOpen source
Carbon-Ledger stellarClimate TechOpen source
Ayrton EnergyClean EnergyCalgary, CanadaOpen source
- D.A.A. TechEnvironmental ConsultingWindsor, United States
Open source
Naps2 SoftwareDocument ManagementOpen source · Self-hostable
CitytapWater InfrastructureTel Aviv, IsraelOpen source
| Company | Sector | License | HQ | Funding | Score | Website |
|---|---|---|---|---|---|---|
| Voltfang | EV Charging | Open source | Berlin, Germany | $15.0M | 40 | |
| SmartGreen | Industrial | Open source | Tel Aviv, Israel | $3.0M | 37 | |
| Gridhelix | AI-Driven Grid Balancing | Open source | London, United Kingdom | — | — | |
| Suena Energy | Energy & Climate Tech | Open source | Tel Aviv, Israel | $10.1M | 35 | |
| Intellivolt | EV Charging | Open source | London, United Kingdom | — | 35 | |
| Aemetis | Climate Tech | Open source · Self-hostable | Cupertino, United States | — | 15 | |
| Crusoe Energy | Energy & Climate Tech | Open source | Denver, United States | $610.0M | 67 | |
| ecobee | Smart Home | Open source | Toronto, Canada | $96.0M | 63 | |
| Sitetracker | Infrastructure Management | Open source | Berkeley, United States | $42.0M | 61 | |
| Greencognition | Climate Tech | Open source | — | — | — | |
| Gridvance | Energy & Climate Tech | Open source | — | — | — | |
| D.A.A. Tech | Environmental Consulting | Open source | Windsor, United States | — | 85 | |
| Percepto | Drones | Open source | Tel Aviv, Israel | $136.8M | 67 | |
| Candid Intelligence | Construction Tech | Open source | San Francisco, United States | $207.0M | 63 | |
| Tomorrow.io | Weather | Open source | Boston, United States | $259.0M | 62 | |
| SESempra Energy | Utilities | Open source | San Diego, United States | — | 60 | |
| EOS Data Analytics | AgTech | Open source | Kyiv, Ukraine | — | 60 | |
| Nordic Salt Cycle | Climate Tech | Open source | Helsinki, Finland | $41.8M | 55 | |
| Algaeing | Textile | Open source | Tel Aviv, Israel | $12.0M | 55 | |
| EnergyX | Energy & Climate Tech | Open source | Austin, United States | — | 54 | |
| Aura Aero | Aerospace | Open source | Toulouse, France | $340.0M | 54 | |
| EarthDaily Analytics | Earth Observation | Open source | Vancouver, Canada | — | 54 | |
| Halo Digital | AI Enablers | Open source | — | $11.0M | 53 | |
| H2Pro | Water | Open source | Tel Aviv, Israel | — | 53 | |
| QUQuantumScape | Energy Tech | Open source | San Jose, United States | $1.3B | 52 | |
| SolCold | Cleantech | Open source | Tel Aviv, Israel | — | 50 | |
| Collos | Climate Tech | Open source | Boston, United States | $1.1M | 48 | |
| Crusoe Cloud - AI Infrastructure and GPU Cloud Platform | AI Infrastructure | Open source | Denver, United States | — | 48 | |
| Re Sustainability | Sustainability | Open source | New York, United States | $1.5M | 47 | |
| Caudal Energy | Renewable Energy | Open source | Oxford, United Kingdom | $5.3M | 42 | |
| Netomnia | Telecom Infrastructure | Open source | London, United Kingdom | $1.7B | 40 | |
| Arbel AI | Industrial Automation | Open source | Even Yehuda, Israel | — | 34 | |
| Aeoradar | AI Infrastructure | Open source | Tel Aviv, Israel | $1.5M | 33 | |
| WeatherXM | Climate Tech | Open source | Athens, Greece | — | 33 | |
| Cipher Mining | Bitcoin Mining | Open source | New York, United States | $1.8B | 25 | |
| Ourea Energy . | Energy Storage | Open source | London, United Kingdom | — | 25 | |
| Marine Hound | Climate Tech | Open source | Valletta, Malta | — | 21 | |
| Earth Observing System | Geospatial Data | Open source | Kyiv, Ukraine | — | 20 | |
| TXTXU Energy | Energy | Open source | Irving, United States | — | 10 | |
| everwave | Climate Tech | Open source | Hamburg, Germany | — | 0 | |
| Fleetbeast | Fleet Management | Open source | — | — | — | |
| Carbon-Ledger stellar | Climate Tech | Open source | — | — | — | |
| Ayrton Energy | Clean Energy | Open source | Calgary, Canada | — | — | |
| Environmental Consulting | Open source | Windsor, United States | — | — | ||
| Naps2 Software | Document Management | Open source · Self-hostable | — | — | — | |
| Citytap | Water Infrastructure | Open source | Tel Aviv, Israel | — | — |