SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.03
Open Cosmos logo Open Cosmos Designs, builds, launches, and operates small satellites for Earth observation, telecommunications, navigation, and science missions 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
Open Cosmos Telesat
Founded 2015 1969
Headquarters Harwell, Oxfordshire, United Kingdom Ottawa, Canada
Type private public
Status operating operating
Employees 177 551
Total funding $57M
Latest round Series B
Sectors Satellite Manufacturing, Earth Observation & Remote Sensing, Satellite Communications Satellite Communications, Ground Segment & Networks, Space Defense Systems
Products listed 4 37
Federal contracts
Launches
Leaders listed Rafel Jorda Siquier, Jordi Barrera Ars, Aleix Megias Homar Daniel S. Goldberg, Donald Tremblay, Michel Forest
News mentions 15 0
SHARED SECTORS
FREQUENTLY ASKED

How do Open Cosmos and Telesat compare?

Both companies work in Satellite Communications. Open Cosmos was founded in 2015 and Telesat in 1969.

Which is larger, Open Cosmos or Telesat?

Telesat reports the larger workforce, with 551 employees versus 177.

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