Millennium Space Systems ranks 23 on the Space 100 with a score of 80; Astranis ranks 61 with 71. Astranis is ahead on commercials and progress. Millennium Space Systems is ahead on production, positioning, firepower and leverage. Level on deployment and technology. Astranis is based in San Francisco, United States, Millennium Space Systems in El Segundo, United States. Astranis: Growth. Millennium Space Systems: Subsidiary. Astranis is named in 26 signals and Millennium Space Systems in 6.
Astranis designs and manufactures small geostationary broadband satellites, including dedicated satellites for customers such as stc Group and its MicroGEO product line.
Darker bar: ahead of the other company on that measure.
Astranis is a US satellite maker whose MicroGEO small dedicated GEO satellites (multiple on orbit since 2023, with the next-gen Omega program) offer niche-GEO-as-a-service, the counter-thesis to LEO constellations, serving nations and telcos without $300M satellite budgets. It raised a Series E in May 2026 (a16z participating) on top of ~$750M in prior rounds. The Series E amount was not disclosed in this pass's sources (a gap).
26 signals name Astranis.
22 facts on file.
Millennium Space Systems designs and builds spacecraft platforms, including the Resolute mid-class platform and Epoch satellites, and is producing multiple spacecraft for government missions.
Darker bar: ahead of the other company on that measure.
Millennium Space Systems is a wholly owned Boeing subsidiary that designs, builds, tests and operates agile small-satellite and mid-class spacecraft for national-security and scientific missions. Its current ecosystem reach includes the U.S. Space Force as the customer for 12 MEO missile-warning and tracking vehicles, NASA for the TRACERS mission, SpaceX as the 2025 launch provider, and Boeing for EO/IR payload integration and expanded production. The key open question is whether Millennium and Boeing can deliver the Epoch 1 MEO vehicles on the revised 2026-27 schedule amid broader government findings of spacecraft-readiness and constellation schedule risk.
6 signals name Millennium Space Systems.
16 facts on file.
Millennium Space Systems ranks 23 on the Space 100 with a score of 80; Astranis ranks 61 with 71. Astranis is ahead on commercials and progress. Millennium Space Systems is ahead on production, positioning, firepower and leverage. Level on deployment and technology. Astranis is based in San Francisco, United States, Millennium Space Systems in El Segundo, United States. Astranis: Growth. Millennium Space Systems: Subsidiary. Astranis is named in 26 signals and Millennium Space Systems in 6.
Millennium Space Systems ranks 23 on the Space 100 with a score of 80; Astranis ranks 61 with 71. Astranis is ahead on commercials and progress. Millennium Space Systems is ahead on production, positioning, firepower and leverage. Level on deployment and technology. Astranis is based in San Francisco, United States, Millennium Space Systems in El Segundo, United States. Astranis: Growth. Millennium Space Systems: Subsidiary. Astranis is named in 26 signals and Millennium Space Systems in 6. Both company files carry the scores on eight measures, the facts with sources and the latest signals.
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