🚀 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.
- Trillium TPU radiation testing with 67 MeV proton beam
- Early 2027 prototype launches planned with Planet Labs
- Concept studies 81-satellite clusters in close formation
- Dawn-dusk SSO for near-continuous solar power
- Economics depend on launch costs approaching ~$200/kg
🌍 Planet Labs
Building and operating the first Project Suncatcher prototype satellites for Google, using its Owl next-generation Earth observation satellite platform as the bus for TPU and optical-link experiments.
- Two Google TPU prototype satellites targeted for early 2027
- Uses Planet's Owl satellite bus with modifications for compute and power
- Tests TPU operation, thermal behavior, formation flying, and optical crosslinks
- Bridges Earth observation heritage with orbital AI infrastructure R&D
- Positions Planet as both data producer and space compute platform operator
🏗️ 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 large orbital compute constellations.
- Successfully trained first AI model in orbit using H100 GPU
- $170M Series A and $1.1B valuation in 2026
- Filed for 88,000-satellite orbital data center constellation
- Ordered 50+ Starlink Mini Lasers for optical mesh connectivity
- Starcloud-3 targets a 200 kW Starship-deployed spacecraft
🛠️ Muon Space
Developing Condor-Ultra, a Starship-class satellite platform designed for orbital data center and communications customers that want high-power spacecraft without building a custom bus from scratch.
- Condor-Ultra baseline: 20 kW power, scalable toward 100 kW
- Designed for native Starship stackability
- Starlink Mini Lasers planned for inter-satellite data relay
- 2028 pathfinder tied to customer mission requirements
- Expanding manufacturing capacity toward hundreds of satellites per year
🛰️ Orbital
Los Angeles startup pursuing in-orbit compute satellites, starting with a 2027 pathfinder to test GPU operation, radiation tolerance, thermal performance, and communications before a purpose-built Orbital-1 spacecraft.
- $5M pre-seed funding in 2026
- 2027 Falcon 9 rideshare demonstration planned
- Orbital-1 purpose-built compute satellite targeted for 2028
- Long-term vision exceeds 100,000 satellites and 10 GW compute power
- Early-stage entrant focused on AI infrastructure demand
⚡ 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
☀️ Space Solar
UK space-based solar power developer whose large orbital power platforms could host data storage and compute payloads, starting with a planned Lonestar StarVault hosting demonstration on OSPREYBuilder in 2028.
- OSPREYBuilder demonstrator planned for 2028
- LOI with Lonestar to host StarVault data storage modules
- Long-term CASSIOPeiA concept targets 600 MW+ power stations
- Links orbital data infrastructure with in-space power generation
- Still early-stage: power platform economics and deployment remain unproven
🧩 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