Open source focus

Open Source Alternatives to ANTARIS

7 open source SpaceTech options similar to ANTARIS, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Every company listed publishes its source: each one carries an open source sector tag and a public GitHub repository.

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Defcon47
HardwareMcLean, United States$44.0M
The Defcon badges feature a unique open-source chip that doubles as a security key.
Open source
Dremio69
Data LakeSanta Clara, United States$395.0M
Self-service analytics on data lakes with data warehouse functionality and data lake flexibility.
Open source · Self-hostable
Comfy Org53
AI Image Generation$30.0M
Comfy is an AI creation engine for visual professionals, offering granular control over AI models, parameters, and outputs through a node-based workflow on an infinite canvas.
Open source
PromptQL45
Artificial IntelligenceSan Francisco, United States
An AI-native workspace designed to turn team interactions into actionable, proprietary data for agentic workflows.
Open source · Self-hostable
Cua39
AI AgentSan Francisco, United States$500K
Cua provides an open-source framework and cloud desktops for AI agents to control operating systems and desktop applications across Linux, Windows, macOS, and Android.
Open source
KubeVirt9
Cloud Computing
Container-native virtualization for Kubernetes, enabling VMs and containers to run side-by-side.
Open source · Self-hostable
Zsvirt2
Open Source
A production-ready, lightweight open-source virtualization platform for environments from homelabs to hyperscale infrastructure.
Open source

Company	Sector	License	HQ	Funding	Score
DefconThe Defcon badges feature a unique open-source chip that doubles as a security key.	Hardware	Open source	McLean, United States	$44.0M	47
DremioSelf-service analytics on data lakes with data warehouse functionality and data lake flexibility.	Data Lake	Open source · Self-hostable	Santa Clara, United States	$395.0M	69
Comfy OrgComfy is an AI creation engine for visual professionals, offering granular control over AI models, parameters, and outputs through a node-based workflow on an infinite canvas.	AI Image Generation	Open source	—	$30.0M	53
PromptQLAn AI-native workspace designed to turn team interactions into actionable, proprietary data for agentic workflows.	Artificial Intelligence	Open source · Self-hostable	San Francisco, United States	—	45
CuaCua provides an open-source framework and cloud desktops for AI agents to control operating systems and desktop applications across Linux, Windows, macOS, and Android.	AI Agent	Open source	San Francisco, United States	$500K	39
KubeVirtContainer-native virtualization for Kubernetes, enabling VMs and containers to run side-by-side.	Cloud Computing	Open source · Self-hostable	—	—	9
ZsvirtA production-ready, lightweight open-source virtualization platform for environments from homelabs to hyperscale infrastructure.	Open Source	Open source	—	—	2