SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
CesiumAstro logo CesiumAstro Designs, manufactures, and integrates software-defined phased array communications systems, payloads, and satellites for space, airborne, and ground platforms vs Infostellar Aggregates global ground station infrastructure into a cloud-native platform, enabling satellite operators to schedule communications across shared antenna networks via a single API Infostellar logo
HEAD-TO-HEAD1 shared sector
CesiumAstro Infostellar
Founded 2017 2016
Headquarters Austin, Texas Shinjuku-ku, Japan
Type private private
Status operating operating
Employees 318 22
Total funding $710.2M $21.3M
Latest round Series C Series B
Sectors Satellite Components & Subsystems, Satellite Communications, Satellite Manufacturing Ground Segment & Networks, Satellite Communications
Products listed 15 2
Federal contracts — —
Launches — —
Leaders listed Shey Sabripour, Kenneth Smith, Chris Pappas III Naomi Kurahara, Kazuo Ishigame, Ryuji Sasaki
News mentions 26 0
SHARED SECTORS
Satellite Communications
FREQUENTLY ASKED

How do CesiumAstro and Infostellar compare?

Both companies work in Satellite Communications. CesiumAstro was founded in 2017 and Infostellar in 2016.

Which is larger, CesiumAstro or Infostellar?

CesiumAstro reports the larger workforce, with 318 employees versus 22.

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