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 Telesat Operates a global GEO satellite fleet and is building Telesat Lightspeed, an enterprise-class LEO constellation delivering fiber-like broadband with ultra-low latency Telesat logo
HEAD-TO-HEAD1 shared sector
CesiumAstro Telesat
Founded 2017 1969
Headquarters Austin, Texas Ottawa, Canada
Type private public
Status operating operating
Employees 318 551
Total funding $710.2M
Latest round Series C
Sectors Satellite Components & Subsystems, Satellite Communications, Satellite Manufacturing Satellite Communications, Ground Segment & Networks, Space Defense Systems
Products listed 15 37
Federal contracts
Launches
Leaders listed Shey Sabripour, Kenneth Smith, Chris Pappas III Daniel S. Goldberg, Donald Tremblay, Michel Forest
News mentions 26 0
SHARED SECTORS
FREQUENTLY ASKED

How do CesiumAstro and Telesat compare?

Both companies work in Satellite Communications. CesiumAstro was founded in 2017 and Telesat in 1969.

Which is larger, CesiumAstro or Telesat?

Telesat reports the larger workforce, with 551 employees versus 318.

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