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Antaris

Los Altos, California software company that lets teams design, simulate and then operate a satellite mission on one cloud platform, running a full virtual copy of the mission before anything is built.

Products, by altitude

Low Earth orbit · 160–2,000 km

  • In service

    SatOS

    Onboard software that links satellites to Antaris's cloud

On the ground · 0 km · Earth’s surface

  • In service

    TrueTwin

    Virtual copy of a satellite to rehearse missions in software

Known rounds

DateRoundAmountLed by
Mar 2026Series A (first close)$28MWestWave Capital⁠1
Sep 2023Seed (preferred)$3.5MStreamlined Ventures⁠2
Aug 2022Seed$4.2MAcequia Capital, Possible Ventures⁠3

Milestones

  • Jul 2026 Antaris reorganized to set up Aeonyx, a defense-focused mission virtualization company headquartered in Colorado Springs. Company statement⁠4
  • Feb 2026 Antaris and SARsatX signed a memorandum of agreement to deliver an initial 16-satellite SAR and optical Earth observation constellation for Saudi Arabia. Company statement⁠5
  • Jan 2025 Antaris announced that the Almagest ELEVATION-1 satellite, run on the Antaris cloud platform and SatOS, had launched on SpaceX Transporter-12 and was in contact. Company statement⁠6

Sources

  1. AntarisMar 31, 2026
  2. PayloadSep 7, 2023
  3. The SaaS NewsAug 14, 2022
  4. Antaris press releaseJul 14, 2026
  5. Antaris press releaseFeb 9, 2026
  6. Antaris press releaseJan 16, 2025

Updated Oct 22, 2026 · How we source facts · Suggest a correction