SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
Portal Space Systems logo Portal Space Systems Manufactures solar-thermal-propelled spacecraft buses for high-delta-v, multi-orbit maneuverability and tactically responsive space operations vs Starfish Space Develops autonomous satellite servicing vehicles using electric propulsion for life extension, disposal, and on-orbit maneuvering Starfish Space logo
HEAD-TO-HEAD1 shared sector
Portal Space Systems Starfish Space
Founded 2021 2019
Headquarters Bothell, Washington Tukwila, Washington
Type private private
Status operating operating
Employees 22 75
Total funding $20M $70M
Latest round Seed Series A
Sectors Space Transportation & Logistics, Satellite Manufacturing, Space Propulsion In-Orbit Servicing & Assembly, Space Propulsion, Space Sustainability & Debris Removal
Products listed 3 6
Federal contracts
Launches
Leaders listed Jeff Thornburg, Ian Vorbach, Prashaanth Ravindran Austin Link, Trevor Bennett, Ari Juster
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Portal Space Systems and Starfish Space compare?

Both companies work in Space Propulsion. Portal Space Systems was founded in 2021 and Starfish Space in 2019.

Which is larger, Portal Space Systems or Starfish Space?

Starfish Space reports the larger workforce, with 75 employees versus 22.

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