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 Portal Space Systems Manufactures solar-thermal-propelled spacecraft buses for high-delta-v, multi-orbit maneuverability and tactically responsive space operations Portal Space Systems logo
HEAD-TO-HEAD1 shared sector
EnduroSat Portal Space Systems
Founded 2015 2021
Headquarters Sofia, Bulgaria Bothell, Washington
Type private private
Status operating operating
Employees 325 22
Total funding $181.6M $20M
Latest round Series C Seed
Sectors Satellite Manufacturing, Satellite Components & Subsystems Space Transportation & Logistics, Satellite Manufacturing, Space Propulsion
Products listed 37 3
Federal contracts
Launches
Leaders listed Raycho Raychev, Victor Danchev, Emmanuel Sauzay Jeff Thornburg, Ian Vorbach, Prashaanth Ravindran
News mentions 6 0
SHARED SECTORS
FREQUENTLY ASKED

How do EnduroSat and Portal Space Systems compare?

Both companies work in Satellite Manufacturing. EnduroSat was founded in 2015 and Portal Space Systems in 2021.

Which is larger, EnduroSat or Portal Space Systems?

EnduroSat reports the larger workforce, with 325 employees versus 22.

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