EnSilica ranks 54 on the Space 100 with a score of 73; CesiumAstro ranks 91 with 65. CesiumAstro is ahead on production and firepower. EnSilica is ahead on deployment, commercials, technology, positioning and leverage. Level on progress. CesiumAstro is based in Austin, United States, EnSilica in Oxfordshire, United Kingdom. CesiumAstro: Growth. CesiumAstro is named in 12 signals and EnSilica in 4.
CesiumAstro builds communications and sensing payloads, RF front ends and electronically steered RF systems for satellites.
Darker bar: ahead of the other company on that measure.
CesiumAstro is a US maker of active phased-array communications (antennas, beamforming, and processing integrated into flight-ready terminals) supplying the SDA Proliferated Warfighter architecture, with multi-orbit and 5G NTN product lines. It deepened vertical integration by acquiring RF-chip designer Jariet Technologies (August 2026), owning the silicon under its arrays, and raised $626M total (a $270M Series C in February 2026), though its platform-level Element demo has not yet flown. Revenue is estimated at 10-100m and hinges on the 2025-27 launch schedule.
12 signals name CesiumAstro.
19 facts on file.
EnSilica designs and supplies custom ASIC and ASSP chips for satellite payloads and user terminals, including development work for a European satellite operator.
Darker bar: ahead of the other company on that measure.
EnSilica designs mixed-signal ASICs and has deliberately converted from a design services business into a design-and-supply platform, where the NRE design contract is the entry point and recurring chip supply revenue is the annuity. FY2026, to 31 May 2026, was a record: revenue up 51 percent to GBP 27.5 million with EBITDA of GBP 4.7 million. Lifetime supply revenues rose 50 percent to USD 375 million and the sales pipeline expanded to USD 600 million across space, industrial and automotive. Five ASIC products are in volume production. FY2027 guidance is GBP 32 to 34 million revenue with approximately 80 percent already contracted. It partners with TSMC and GlobalFoundries and markets an ITAR-free European supply chain, the specific reason SIAE Microelettronica named it as its ASIC design partner. The space business is scored separately as a second domain row because its contracts are funded but no silicon is flying and supply revenue sits at the end of the decade: the April 2026 contracts cover ASIC and ASSP silicon for satellite payload and user terminal, USD 6.8 million of NRE from FY2026 into FY2028 with up to USD 3 million of UK Space Agency matched funding, and potential user-terminal supply revenue above USD 50 million from 2030.
4 signals name EnSilica.
29 facts on file.
EnSilica ranks 54 on the Space 100 with a score of 73; CesiumAstro ranks 91 with 65. CesiumAstro is ahead on production and firepower. EnSilica is ahead on deployment, commercials, technology, positioning and leverage. Level on progress. CesiumAstro is based in Austin, United States, EnSilica in Oxfordshire, United Kingdom. CesiumAstro: Growth. CesiumAstro is named in 12 signals and EnSilica in 4.
EnSilica ranks 54 on the Space 100 with a score of 73; CesiumAstro ranks 91 with 65. CesiumAstro is ahead on production and firepower. EnSilica is ahead on deployment, commercials, technology, positioning and leverage. Level on progress. CesiumAstro is based in Austin, United States, EnSilica in Oxfordshire, United Kingdom. CesiumAstro: Growth. CesiumAstro is named in 12 signals and EnSilica in 4. Both company files carry the scores on eight measures, the facts with sources and the latest signals.
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