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: · TESAT · Suppliers and hosts only.
1–2 of 2 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 |
|---|---|---|---|---|
| Kepler Tranche 1Kepler Communications | TESAT | Supplier | Optical links ConLCT80 optical terminals selected for Kepler’s first planned optical-relay tranche. Details & project milestonesConLCT80 optical terminals selected for Kepler’s first planned optical-relay tranche. Historical selection, with no disclosed value or unit quantity. Later delivered configurations are not independently established by this 2022 source. Disclosed buyer: Kepler Communications. Kepler Tranche 1: Commercial services operating Next project milestone: Further customer deployment and service-performance disclosure; no exact next event date announced. This is a project target, not a supplier delivery commitment. Evidence checked 26 Sept 2026. | Role confirmedSource ↗ |
| Planetek Hellas OPTISATPlanetek Hellas | TESAT | Supplier | Optical links First SCOT20 optical-terminal flight model delivered and accepted for OPTISAT. Details & project milestonesFirst SCOT20 optical-terminal flight model delivered and accepted for OPTISAT. October 6, 2025 is the TESAT announcement date. ESA’s February 13, 2026 account dates delivery, acceptance and integration to August 2025. Procurement price, direct buyer and measured in-orbit throughput remain undisclosed. ESA source: https://resilience.esa.int/archives/news/greeces-advanced-laser-satellite-communications-test-campaign-to-launch-with-esa-support Disclosed buyer: Not disclosed. Associated organization: Planetek Hellas. Planetek Hellas OPTISAT: Launched experimental mission Next project milestone: Await OPTISAT commissioning and measured SCOT20/onboard-processing results from Planetek Hellas, ESA or TESAT. No dated next milestone disclosed. This is a project target, not a supplier delivery commitment. Evidence checked 8 Oct 2026. | Role confirmedSource ↗ |
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.