🚀 SpaceX
Primary enabler of orbital data centers through Starship heavy-lift reusability and Starlink optical mesh network. Post xAI merger, targeting up to 100 GW of distributed orbital AI compute via massive satellite constellations.
- Starship enables >100-tonne payloads to LEO at <$100/kg
- Starlink laser ISLs proven at scale for inter-satellite data center mesh
- FCC filing for 1 million solar-powered compute satellites
- Powers hybrid space-Earth workloads at gigawatt scale
🔍 Google (Project Suncatcher)
Developing solar-powered TPU clusters in LEO with formation-flying satellites connected by high-bandwidth free-space optical links for scalable orbital AI infrastructure.
- Validated Trillium TPUs survive 3x expected 5-year radiation dose
- 1.6 Tbps inter-satellite laser links in tight satellite formations
- Targeting early 2027 prototype launches with Planet Labs
- Demonstrates economic viability of orbital compute at scale
🏗️ Axiom Space
Pioneering commercial orbital infrastructure by deploying dedicated data center nodes on the ISS and in LEO, using optical interconnects for high-speed space networking.
- First operational orbital data center nodes launched Jan 2026
- AxDCU-1 prototypes running AI workloads in orbit
- Optical laser links for fiber-like connectivity between nodes
- Building modular add-on compute for future commercial space stations
☁️ Starcloud (formerly LumenOrbit)
Pioneer of space data centers. First company to launch H100 GPU and train AI models entirely in orbit, proving COTS hardware viability and advancing toward gigawatt-scale orbital constellations.
- Successfully trained first AI model in orbit using H100 GPU
- Demonstrated radiation tolerance of commercial hardware in LEO
- Filed for 88,000-satellite constellation to enable orbital compute
- 4-stage roadmap from single-node tests to GW-scale facilities
⚡ Aetherflux
Developing large-scale orbital AI compute constellation with integrated power beaming to Earth using infrared lasers, creating dual-use infrastructure for space data centers and terrestrial energy delivery.
- Galactic Brain constellation for orbital AI and power beaming
- Targets Q1 2027 first commercial compute node
- Focuses on continuous solar-powered orbital workloads
- Bypasses terrestrial grid and permitting constraints
🌙 Lonestar Data Holdings
Providing disaster-proof data storage at Earth-Moon L1 Lagrange point, enabling resilient orbital data archives that complement space compute infrastructure.
- Lunar-distance L1 location for high-reliability storage
- Successfully deployed Freedom payload in 2025
- Focuses on data sovereignty independent of terrestrial risks
- Complements orbital compute with long-term archival capabilities
🧩 Sophia Space
Creating modular TILE edge servers designed for easy integration onto existing satellites, enabling distributed orbital compute with passive thermal management optimized for space.
- 1m×1m×1cm TILE servers bolt onto spacecraft for instant compute
- Passive cooling eliminates active thermal systems in vacuum
- Targets defense, geospatial, and edge AI workloads in orbit
- Enables rapid scaling of orbital capacity without full satellite redesign
🔗 Spacebilt
Specializing in optically interconnected modular data center nodes for LEO and ISS, enabling high-speed laser networking between orbital compute platforms.
- Optical interconnects for fiber-speed data transfer in space
- Collaborating on first ISS data center node planned 2027
- Modular design for add-on capacity to existing spacecraft
- Builds resilient, standards-compliant orbital infrastructure
🛰️ Kepler Communications
Operates the largest commercially operational orbital compute cluster — 40 NVIDIA Jetson Orin edge GPUs across 10 laser-linked satellites forming a distributed space-based edge compute fabric. 33 satellites launched to date with the first commercial optical data relay network.
- Largest orbital compute cluster — 40 NVIDIA Orin GPUs across 10 satellites
- First commercially operational optical data relay network
- 18 customers including Axiom Space, Sophia Space, government agencies
- Cloud-native architecture — workloads shift dynamically between nodes
- Space-to-air laser link demonstrated for US government
- SDA Tranche 1-compatible optical inter-satellite links
🚀 Blue Origin
Entered the orbital data center race with Project Sunrise — an FCC filing for up to 51,600 satellites in sun-synchronous orbits providing in-space AI computing. New Glenn heavy-lift rocket enables deployment of large-scale orbital compute infrastructure.
- Project Sunrise: 51,600 satellites in 500–1,800 km SSO
- Optical ISLs with TeraWave broadband constellation
- Ka-band TT&C, deorbit within 5 years
- New Glenn-enabled deployment at scale
- Minimizes debris and astronomical impact
- Competes with SpaceX/xAI in orbital AI compute
⚡ Aethero
Delivering space-grade high-performance computing with the Titan mission — 16,000+ TFLOPS via Kubernetes-clustered NVIDIA Jetson Thor processors. Three generations of in-orbit demonstrators (Deimos, Phobos, Titan) with customers including Booz Allen Hamilton and US Air Force Research Laboratory.
- Titan mission: 16,000+ TFLOPS Kubernetes-clustered orbital supercomputer
- NxA-ECM module: 4,000+ TFLOPS per unit, NVIDIA Jetson Thor
- Three demonstrators: Deimos (2024), Phobos (Mar 2026), Titan (Oct 2026)
- EnduroSat FRAME-15 platform — 3.4 kW peak power
- Booz Allen Hamilton & AFRL customers
- Multi-tenant containerized compute — space-based AWS
🛒 Atomic-6
Launched ODC.space — the first online marketplace for ordering orbital data center capacity. Builds integrated spacecraft subsystems (Light Wing solar arrays, Hot Wing radiators, Space Armor shielding) backed by DoD and US Space Force contracts.
- ODC.space marketplace: spec, price, and order ODC capacity online
- 1U colocated ($575K/mo) to 42U sovereign ($3.56M/mo) plans
- Light Wing solar, Hot Wing cooling, Space Armor shielding
- 2-3 year delivery, 1 Gbps+ connectivity, 5-year service life
- Hardware flew on Lonestar Freedom lunar mission (2025)
- DoD and US Space Force heritage