Space Data Centers Database
Search and compare space data center projects and related orbital computing demonstrations, including developers, technical specifications, suppliers, agreements and milestones. Follow each commitment to its original announcement.
Catalog: 98 projects. 13 proposal / study · 35 development · 13 launched · 20 demonstrated · 4 operating · 10 historical · 3 uncertain. These are project classifications, not spacecraft counts or verified commercial capacity.
37 projects classified as launched, demonstrated or operating: 29 reviewed, 8 with review limits or awaiting review. Each project appears in one classification.
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Linked view: · Kepler Communications · Suppliers and hosts only.
1–5 of 5 relationship records. Each row is one underlying record, including records linked to several projects. Roles and agreement evidence are separate.
| Project / associated organization | Organization | Role | Component / service scope | Commitment / supporting evidence |
|---|---|---|---|---|
| Axiom Orbital Data CentersAxiom Space | Kepler Communications | Host | Payload integration Hosting of Axiom ARC 1 and ARC 2 on Kepler optical relay satellites, with Axiom-reported node-to-node and node-to-ground communications validation. Details & project milestonesHosting of Axiom ARC 1 and ARC 2 on Kepler optical relay satellites, with Axiom-reported node-to-node and node-to-ground communications validation. Records the existing prototype hosting scope described in the October 6 update. This is the disclosure date, not a new contract or signature date. Buyer, commercial terms, measured workload throughput and paid utilization are not disclosed. The PQC workload migration was demonstrated on the ground, with orbital PQC testing still planned. Disclosed buyer: Not disclosed. Associated organization: Axiom Space. Axiom Orbital Data Centers: ARC communications validated Next project milestone: Develop the separate ISS data-center node targeted for 2027 and expand interoperability with the two dedicated nodes. This is a project target, not a supplier delivery commitment. Evidence checked 7 Oct 2026. | PartnershipSource ↗ |
| Axiom Orbital Data CentersAxiom Space | Kepler Communications | Supplier | Optical links Optical intersatellite-link integration and demonstration for the Axiom Station network. Details & project milestonesOptical intersatellite-link integration and demonstration for the Axiom Station network. Historical station-network agreement. It does not establish procurement terms for every later Axiom node. Disclosed buyer: Not disclosed. Associated organization: Axiom Space. Axiom Orbital Data Centers: ARC communications validated Next project milestone: Develop the separate ISS data-center node targeted for 2027 and expand interoperability with the two dedicated nodes. This is a project target, not a supplier delivery commitment. Evidence checked 26 Sept 2026. | PartnershipSource ↗ |
| No tracked project linkNorthStar Earth & Space Inc. | Kepler Communications | Host | Payload integration · Optical links Payload hosting and optical data relay for NorthStar space-domain-awareness sensors on Kepler satellite infrastructure, with a longer-term framework for additional sensor deployments. Details & project milestonesPayload hosting and optical data relay for NorthStar space-domain-awareness sensors on Kepler satellite infrastructure, with a longer-term framework for additional sensor deployments. Company-level agreement. No specific tranche, launched sensor count, procurement price or separate financing transaction is established. Disclosed buyer: NorthStar Earth & Space Inc.. Evidence checked 28 Oct 2026. | Development agreementSource ↗ |
| No tracked project linkEuropean Space Agency (ESA) | Kepler Communications | Supplier | Satellite bus · Payload integration · Optical links · Mission operations Prime contractor for HydRON Element 3: a standard Kepler satellite hosting multiple European optical terminals and payloads, including launch preparation and in-orbit operations. Details & project milestonesPrime contractor for HydRON Element 3: a standard Kepler satellite hosting multiple European optical terminals and payloads, including launch preparation and in-orbit operations. The USD 20,779,920 (€18.6 million) award is funded through the Canada–ESA program. Named European contributors establish program roles, not separate disclosed subcontracts, prices or a dedicated orbital data-center deployment. Disclosed buyer: European Space Agency (ESA). USD 20,779,920 (EUR 18,600,000). ESA HydRON Element 3 award Evidence checked 26 Sept 2026. | Contract / order disclosedSource ↗ |
| No tracked project linkEuropean Space Agency (ESA) | Kepler Communications | Supplier | Communications · Data services ÆTHER hardware terminals and connectivity service linking ESA and other programme participants' space assets to Kepler's LEO communications network under AO/1-10220. Details & project milestonesÆTHER hardware terminals and connectivity service linking ESA and other programme participants' space assets to Kepler's LEO communications network under AO/1-10220. Kepler-issued award disclosure. This is the 2021 ÆTHER communications contract, separate from later HydRON awards. Planned early-2022 tests are not established as completed by this release. Disclosed buyer: European Space Agency (ESA). Associated organization: European Space Agency (ESA). USD 558,600 (EUR 500,000). ESA-funded award for hardware terminals and connectivity under AO/1-10220. Evidence checked 14 Oct 2026. | Contract / order disclosedSource ↗ |
Supplier work coverage by category
Distinct projects with a disclosed supplier or host in each work category. Investors, research participants and other partnership roles are excluded from supplier coverage. Click a count to see the matching projects. Columns overlap; do not add them together.
| Component / service | Contract awarded | Supplier selected | Development agreement | Launch capacity reserved | Preliminary agreement | Partnership | Any supplier | No supplier |
|---|---|---|---|---|---|---|---|---|
| Power | ||||||||
| ↳ Electrical power system | ||||||||
| ↳ Batteries | ||||||||
| ↳ Solar arrays | ||||||||
| Spacecraft & integration | ||||||||
| ↳ Satellite bus | ||||||||
| ↳ Payload integration | ||||||||
| Compute & storage | ||||||||
| ↳ Storage payload | ||||||||
| ↳ Processors / accelerators | ||||||||
| ↳ Photonic computing components | ||||||||
| Thermal control | ||||||||
| ↳ Radiators / cooling | ||||||||
| Communications | ||||||||
| ↳ Optical links | ||||||||
| Launch | ||||||||
| ↳ Launch capacity | ||||||||
| ↳ Launch integration | ||||||||
| Operations | ||||||||
| ↳ Mission operations | ||||||||
| ↳ Ground stations & ground segment | ||||||||
| ↳ Deployable structures | ||||||||
| ↳ Payload industrial design | ||||||||
| ↳ Flight / payload software | ||||||||
| ↳ Data services | ||||||||
| ↳ Electric propulsion | ||||||||
| ↳ Avionics / integrated electronics | ||||||||
| ↳ In-space manufacturing | ||||||||
| ↳ Spacecraft protection systems | ||||||||
| ↳ Attitude control components | ||||||||
| Sensors & monitoring | ||||||||
| ↳ Radiation sensors | ||||||||
| ↳ Lunar payload delivery | ||||||||
| Commercial services | ||||||||
| ↳ Cloud capacity & advisory | ||||||||
| ↳ Technical training & capability transfer | ||||||||
| Research & feasibility studies |
Technical specifications retain the source’s original units and evidence status. Hardware counts, compute rates and power are not equivalent; launched hardware does not establish demonstrated performance. Supplier counts include suppliers and hosts only, reflect current filters and cover this directory, not the entire market. “No record” means no disclosure captured; it does not mean the work is unawarded. Latest developments use source dates, not routine review or collection dates.