SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.03
CesiumAstro logo CesiumAstro Designs, manufactures, and integrates software-defined phased array communications systems, payloads, and satellites for space, airborne, and ground platforms. vs RBC Signals Operates a global ground station network providing satellite data communications, spectrum services, and Ground Station as a Service across all major frequency bands RBC Signals logo
HEAD-TO-HEAD1 shared sector
CesiumAstro RBC Signals
Founded 2017 2015
Headquarters Austin, Texas, USA Redmond, Washington, USA
Type private private
Status operating operating
Employees 318 11
Total funding $710.2M $3.2M
Latest round Series C Seed
Sectors Satellite Components & Subsystems, Satellite Communications, Satellite Manufacturing Ground Segment & Networks, Satellite Communications, Space Domain Awareness
Products listed 15 8
Federal contracts — —
Launches — —
Leaders listed Shey Sabripour, Kenneth Smith, Chris Pappas III Ron Faith, Christopher Richins, Rani Hellerman
News mentions 26 0
SHARED SECTORS
Satellite Communications
FREQUENTLY ASKED

How do CesiumAstro and RBC Signals compare?

Both companies work in Satellite Communications. CesiumAstro was founded in 2017 and RBC Signals in 2015.

Which is larger, CesiumAstro or RBC Signals?

CesiumAstro reports the larger workforce, with 318 employees versus 11.

Numbers refresh on every render against the live Space Index database. Federal contract data from USAspending.gov; launches from LaunchLibrary2.