SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
Open Cosmos logo Open Cosmos Designs, builds, launches, and operates small satellites for Earth observation, telecommunications, navigation, and science missions vs Tesat-Spacecom Manufactures satellite communication payloads and laser inter-satellite link terminals, with equipment aboard more than half of all communication satellites in orbit Tesat-Spacecom logo
HEAD-TO-HEAD1 shared sector
Open Cosmos Tesat-Spacecom
Founded 2015 1949
Headquarters Harwell, United Kingdom Backnang, Germany
Type private private
Status operating operating
Employees 177 1,100
Total funding $57M —
Latest round Series B —
Sectors Satellite Manufacturing, Earth Observation & Remote Sensing, Satellite Communications Satellite Communications, Navigation & Positioning, Satellite Components & Subsystems
Products listed 4 6
Federal contracts — —
Launches — —
Leaders listed Rafel Jorda Siquier, Jordi Barrera Ars, Aleix Megias Homar Dr. Caroline Weishaupl, Matthias von Hayek-Boelingen, Rolf Leonhardt
News mentions 15 36
SHARED SECTORS
Satellite Communications
FREQUENTLY ASKED

How do Open Cosmos and Tesat-Spacecom compare?

Both companies work in Satellite Communications. Open Cosmos was founded in 2015 and Tesat-Spacecom in 1949.

Which is larger, Open Cosmos or Tesat-Spacecom?

Tesat-Spacecom reports the larger workforce, with 1,100 employees versus 177.

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