SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
Astra Space logo Astra Space Develops small-lift launch vehicles with mobile launch infrastructure and manufactures Hall-effect electric propulsion systems for satellite constellations 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
Astra Space Portal Space Systems
Founded 2016 2021
Headquarters Alameda, California Bothell, Washington
Type private private
Status operating operating
Employees 113 22
Total funding $407M $20M
Latest round Seed
Sectors Launch Services, Space Propulsion Space Transportation & Logistics, Satellite Manufacturing, Space Propulsion
Products listed 3 3
Federal contracts
Launches 8 (25%)
Leaders listed Chris Kemp, Adam London, Martin Attiq Jeff Thornburg, Ian Vorbach, Prashaanth Ravindran
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Astra Space and Portal Space Systems compare?

Both companies work in Space Propulsion. Astra Space was founded in 2016 and Portal Space Systems in 2021.

Which is larger, Astra Space or Portal Space Systems?

Astra Space reports the larger workforce, with 113 employees versus 22.

Which has more launches, Astra Space or Portal Space Systems?

Astra Space leads with 8 tracked launches (25% success rate).

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