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 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
Open Cosmos Portal Space Systems
Founded 2015 2021
Headquarters Harwell, United Kingdom Bothell, Washington
Type private private
Status operating operating
Employees 177 22
Total funding $57M $20M
Latest round Series B Seed
Sectors Satellite Manufacturing, Earth Observation & Remote Sensing, Satellite Communications Space Transportation & Logistics, Satellite Manufacturing, Space Propulsion
Products listed 4 3
Federal contracts
Launches
Leaders listed Rafel Jorda Siquier, Jordi Barrera Ars, Aleix Megias Homar Jeff Thornburg, Ian Vorbach, Prashaanth Ravindran
News mentions 15 0
SHARED SECTORS
FREQUENTLY ASKED

How do Open Cosmos and Portal Space Systems compare?

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

Which is larger, Open Cosmos or Portal Space Systems?

Open Cosmos reports the larger workforce, with 177 employees versus 22.

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