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 Sidus Space Designs, manufactures, and operates LizzieSat small satellites, delivering AI-driven space-based data and hardware manufacturing services for defense and commercial customers Sidus Space logo
HEAD-TO-HEAD2 shared sectors
Open Cosmos Sidus Space
Founded 2015 2012
Headquarters Harwell, United Kingdom Florida’s Space Coast, Florida
Type private public
Status operating operating
Employees 177 73
Total funding $57M
Latest round Series B
Sectors Satellite Manufacturing, Earth Observation & Remote Sensing, Satellite Communications Satellite Manufacturing, Earth Observation & Remote Sensing, Space Defense Systems
Products listed 4 3
Federal contracts
Launches
Leaders listed Rafel Jorda Siquier, Jordi Barrera Ars, Aleix Megias Homar Carol Craig, Mark Mikolajczyk, Val Ojdanic
News mentions 15 9
SHARED SECTORS
FREQUENTLY ASKED

How do Open Cosmos and Sidus Space compare?

Both companies work in Satellite Manufacturing, Earth Observation & Remote Sensing. Open Cosmos was founded in 2015 and Sidus Space in 2012.

Which is larger, Open Cosmos or Sidus Space?

Open Cosmos reports the larger workforce, with 177 employees versus 73.

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