SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.03
AST SpaceMobile logo AST SpaceMobile Operates a space-based cellular broadband network delivering 4G and 5G connectivity directly to standard smartphones via LEO satellites 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
AST SpaceMobile Sidus Space
Founded 2017 2012
Headquarters Midland, Texas, USA Florida’s Space Coast
Type public public
Status operating operating
Employees 613 73
Total funding
Latest round
Sectors Satellite Communications, Ground Segment & Networks, Satellite Manufacturing Satellite Manufacturing, Earth Observation & Remote Sensing, Space Defense Systems
Products listed 5 3
Federal contracts
Launches
Leaders listed Abel Avellan, Scott Wisniewski, Andrew Johnson Carol Craig, Mark Mikolajczyk, Val Ojdanic
News mentions 1 9
SHARED SECTORS
FREQUENTLY ASKED

How do AST SpaceMobile and Sidus Space compare?

Both companies work in Satellite Manufacturing. AST SpaceMobile was founded in 2017 and Sidus Space in 2012.

Which is larger, AST SpaceMobile or Sidus Space?

AST SpaceMobile reports the larger workforce, with 613 employees versus 73.

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