SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
EnduroSat logo EnduroSat Designs, builds, and operates software-defined small satellites and shared satellite platforms for commercial and scientific missions worldwide 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-HEAD1 shared sector
EnduroSat Sidus Space
Founded 2015 2012
Headquarters Sofia, Bulgaria Florida’s Space Coast, Florida
Type private public
Status operating operating
Employees 325 73
Total funding $181.6M
Latest round Series C
Sectors Satellite Manufacturing, Satellite Components & Subsystems Satellite Manufacturing, Earth Observation & Remote Sensing, Space Defense Systems
Products listed 37 3
Federal contracts
Launches
Leaders listed Raycho Raychev, Victor Danchev, Emmanuel Sauzay Carol Craig, Mark Mikolajczyk, Val Ojdanic
News mentions 6 9
SHARED SECTORS
FREQUENTLY ASKED

How do EnduroSat and Sidus Space compare?

Both companies work in Satellite Manufacturing. EnduroSat was founded in 2015 and Sidus Space in 2012.

Which is larger, EnduroSat or Sidus Space?

EnduroSat reports the larger workforce, with 325 employees versus 73.

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