Open source focus
Open Source Alternatives to NexTenna
60 open source Antenna options similar to NexTenna, 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.
SkyfireAI59AerospaceAustin, USA$19.5MOpen source
Ideon Technologies48Computer VisionTel Aviv, Israel$21.0MOpen source
Vanilla Aircraft47AerospaceFalls Church, United StatesOpen source
Airvolute45AerospaceTrnava, Slovakia$1.5MOpen source
Orange Sky Defense39Defense TechIsrael, Israel$1.0MOpen source
SpearUAV31DronesTel Aviv, IsraelOpen source
Radomatics20AutomotiveTel Aviv, IsraelOpen source
Aemetis15Climate TechCupertino, United StatesOpen source · Self-hostable
9 Mothers10Hard TechAustin, United StatesOpen source
Aether IntelAI Search EngineWashington, United StatesOpen source
Ubuntu85Operating SystemsLondon, United Kingdom$63.0MOpen source · Self-hostable
New Relic85Enterprise SoftwareSan Francisco, United States$7.2BOpen source
1Password85CybersecurityToronto, Canada$1.2BOpen source
Bloomberg L.P.82FintechNew York, United States$60.1BOpen source
Databricks82Data AnalyticsSan Francisco, United States$31.7BOpen source · Self-hostable
Okta79SaaSSan Francisco, United States$187.0MOpen source
Arm Holdings plc77Semiconductor DesignCambridge, United Kingdom$35.9BOpen source
Coveo75AI Search EngineQuebec City, Canada$315.0MOpen source
Manus AI75Agentic AISingapore, Singapore$150.0MOpen source
NemoClaw75Artificial IntelligenceOpen source · Self-hostable
Algolia75Search TechnologySan Francisco, United States$334.2MOpen source
Mastra75Agentic AISan Francisco, United States$35.5MOpen source · Self-hostable
Osaurus71Artificial IntelligenceSan Francisco, USA$63.0MOpen source
Perplexity AI71Search EngineSan Francisco, United States$591.4MOpen source
Codeium71Artificial IntelligenceMountain View, United States$396.7MOpen source
Hightouch70Customer Data PlatformSan Francisco, United States$322.0MOpen source
Harmony70AI AgentSan Francisco, United States$75.0MOpen source
Percepto67DronesTel Aviv, Israel$136.8MOpen source
SiFive66AI ChipSan Jose, United States$774.9MOpen source
Solo.io66Artificial IntelligenceCambridge, USA$174.8MOpen source · Self-hostable
Daytona66AI InfrastructureNew York, United States$46.0MOpen source
Tines66Security AutomationDublin, Ireland$260.1MOpen source
Dust65Agentic AIParis, France$15.0MOpen source
Firecrawl65Agentic AISan Francisco, United States$29.0MOpen source
Deepgram65NeocloudSan Francisco, United States$177.1MOpen source
H2O.ai64Foundation ModelMountain View, United States$228.1MOpen source · Self-hostable
Bland64Voice AISan Francisco, United States$51.0MOpen source
LlamaIndex64Agentic AIUnited StatesOpen source
CopilotKit64Agentic AISan Francisco, United States$42.0MOpen source
Airweave63Agentic AISan Francisco, United States$6.0MOpen source · Self-hostable
Sarvam AI63Agentic AIBengaluru, India$234.0MOpen source
ecobee63Smart HomeToronto, Canada$96.0MOpen source
Candid Intelligence63Construction TechSan Francisco, United States$207.0MOpen source
Atom Foundry63Agentic AISan Francisco, United States$12.0MOpen source
Starfighters Space63AerospaceKennedy Space Center, USA$17.5MOpen source
PineAI63Artificial IntelligenceSan Francisco, USA$63.0MOpen source
Warmly63Agentic AISan Francisco, United States$19.7MOpen source
LILT63Enterprise SoftwareEmeryville, United States$93.2MOpen source
Rewind62Personal Agent Data VaultOttawa, CanadaOpen source
- STStackOne62AILondon, United Kingdom$23.6M
Open source
Tomorrow.io62WeatherBoston, United States$259.0MOpen source
Entire62Artificial Intelligence$60.0MOpen source · Self-hostable
D-Fend Solutions62DronesTel Aviv, Israel$59.0MOpen source
- PAParagon62SaaSLos Angeles, United States$21.0M
Open source
Groundcover62ObservabilityTel Aviv, Israel$155.0MOpen source
KNIME62Data Science PlatformZurich, Switzerland$30.0MOpen source
Viktor62Artificial IntelligenceWarsaw, Poland$64.7MOpen source
Elicit62Artificial IntelligenceOakland, United States$31.0MOpen source
Orkes62Artificial IntelligenceSanta Clara, USA$89.3MOpen source
thirdweb62Web3San Francisco, United States$29.0MOpen source
| Company | Sector | License | HQ | Funding | Score | Website |
|---|---|---|---|---|---|---|
| SkyfireAI | Aerospace | Open source | Austin, USA | $19.5M | 59 | |
| Ideon Technologies | Computer Vision | Open source | Tel Aviv, Israel | $21.0M | 48 | |
| Vanilla Aircraft | Aerospace | Open source | Falls Church, United States | — | 47 | |
| Airvolute | Aerospace | Open source | Trnava, Slovakia | $1.5M | 45 | |
| Orange Sky Defense | Defense Tech | Open source | Israel, Israel | $1.0M | 39 | |
| SpearUAV | Drones | Open source | Tel Aviv, Israel | — | 31 | |
| Radomatics | Automotive | Open source | Tel Aviv, Israel | — | 20 | |
| Aemetis | Climate Tech | Open source · Self-hostable | Cupertino, United States | — | 15 | |
| 9 Mothers | Hard Tech | Open source | Austin, United States | — | 10 | |
| Aether Intel | AI Search Engine | Open source | Washington, United States | — | — | |
| Ubuntu | Operating Systems | Open source · Self-hostable | London, United Kingdom | $63.0M | 85 | |
| New Relic | Enterprise Software | Open source | San Francisco, United States | $7.2B | 85 | |
| 1Password | Cybersecurity | Open source | Toronto, Canada | $1.2B | 85 | |
| Bloomberg L.P. | Fintech | Open source | New York, United States | $60.1B | 82 | |
| Databricks | Data Analytics | Open source · Self-hostable | San Francisco, United States | $31.7B | 82 | |
| Okta | SaaS | Open source | San Francisco, United States | $187.0M | 79 | |
| Arm Holdings plc | Semiconductor Design | Open source | Cambridge, United Kingdom | $35.9B | 77 | |
| Coveo | AI Search Engine | Open source | Quebec City, Canada | $315.0M | 75 | |
| Manus AI | Agentic AI | Open source | Singapore, Singapore | $150.0M | 75 | |
| NemoClaw | Artificial Intelligence | Open source · Self-hostable | — | — | 75 | |
| Algolia | Search Technology | Open source | San Francisco, United States | $334.2M | 75 | |
| Mastra | Agentic AI | Open source · Self-hostable | San Francisco, United States | $35.5M | 75 | |
| Osaurus | Artificial Intelligence | Open source | San Francisco, USA | $63.0M | 71 | |
| Perplexity AI | Search Engine | Open source | San Francisco, United States | $591.4M | 71 | |
| Codeium | Artificial Intelligence | Open source | Mountain View, United States | $396.7M | 71 | |
| Hightouch | Customer Data Platform | Open source | San Francisco, United States | $322.0M | 70 | |
| Harmony | AI Agent | Open source | San Francisco, United States | $75.0M | 70 | |
| Percepto | Drones | Open source | Tel Aviv, Israel | $136.8M | 67 | |
| SiFive | AI Chip | Open source | San Jose, United States | $774.9M | 66 | |
| Solo.io | Artificial Intelligence | Open source · Self-hostable | Cambridge, USA | $174.8M | 66 | |
| Daytona | AI Infrastructure | Open source | New York, United States | $46.0M | 66 | |
| Tines | Security Automation | Open source | Dublin, Ireland | $260.1M | 66 | |
| Dust | Agentic AI | Open source | Paris, France | $15.0M | 65 | |
| Firecrawl | Agentic AI | Open source | San Francisco, United States | $29.0M | 65 | |
| Deepgram | Neocloud | Open source | San Francisco, United States | $177.1M | 65 | |
| H2O.ai | Foundation Model | Open source · Self-hostable | Mountain View, United States | $228.1M | 64 | |
| Bland | Voice AI | Open source | San Francisco, United States | $51.0M | 64 | |
| LlamaIndex | Agentic AI | Open source | United States | — | 64 | |
| CopilotKit | Agentic AI | Open source | San Francisco, United States | $42.0M | 64 | |
| Airweave | Agentic AI | Open source · Self-hostable | San Francisco, United States | $6.0M | 63 | |
| Sarvam AI | Agentic AI | Open source | Bengaluru, India | $234.0M | 63 | |
| ecobee | Smart Home | Open source | Toronto, Canada | $96.0M | 63 | |
| Candid Intelligence | Construction Tech | Open source | San Francisco, United States | $207.0M | 63 | |
| Atom Foundry | Agentic AI | Open source | San Francisco, United States | $12.0M | 63 | |
| Starfighters Space | Aerospace | Open source | Kennedy Space Center, USA | $17.5M | 63 | |
| PineAI | Artificial Intelligence | Open source | San Francisco, USA | $63.0M | 63 | |
| Warmly | Agentic AI | Open source | San Francisco, United States | $19.7M | 63 | |
| LILT | Enterprise Software | Open source | Emeryville, United States | $93.2M | 63 | |
| Rewind | Personal Agent Data Vault | Open source | Ottawa, Canada | — | 62 | |
| STStackOne | AI | Open source | London, United Kingdom | $23.6M | 62 | |
| Tomorrow.io | Weather | Open source | Boston, United States | $259.0M | 62 | |
| Entire | Artificial Intelligence | Open source · Self-hostable | — | $60.0M | 62 | |
| D-Fend Solutions | Drones | Open source | Tel Aviv, Israel | $59.0M | 62 | |
| PAParagon | SaaS | Open source | Los Angeles, United States | $21.0M | 62 | |
| Groundcover | Observability | Open source | Tel Aviv, Israel | $155.0M | 62 | |
| KNIME | Data Science Platform | Open source | Zurich, Switzerland | $30.0M | 62 | |
| Viktor | Artificial Intelligence | Open source | Warsaw, Poland | $64.7M | 62 | |
| Elicit | Artificial Intelligence | Open source | Oakland, United States | $31.0M | 62 | |
| Orkes | Artificial Intelligence | Open source | Santa Clara, USA | $89.3M | 62 | |
| thirdweb | Web3 | Open source | San Francisco, United States | $29.0M | 62 |