SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.03
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 United Launch Alliance Manufactures and operates the Vulcan Centaur and Atlas V launch vehicles for national security, NASA, and commercial customers. United Launch Alliance logo
HEAD-TO-HEAD1 shared sector
Portal Space Systems United Launch Alliance
Founded 2021 2006
Headquarters Bothell, Washington, USA Centennial, Colorado, USA
Type private joint-venture
Status operating operating
Employees 22 1,944
Total funding $20M+
Latest round Seed
Sectors Space Transportation & Logistics, Satellite Manufacturing, Space Propulsion Launch Services, Space Transportation & Logistics
Products listed 3 3
Federal contracts 12 ($6.75B)
Launches 211 (82%)
Leaders listed Jeff Thornburg, Ian Vorbach, Prashaanth Ravindran John Elbon, Mark Peller, Mitch Van Dewerker
News mentions 0 1
SHARED SECTORS
FREQUENTLY ASKED

How do Portal Space Systems and United Launch Alliance compare?

Both companies work in Space Transportation & Logistics. Portal Space Systems was founded in 2021 and United Launch Alliance in 2006.

Which is larger, Portal Space Systems or United Launch Alliance?

United Launch Alliance reports the larger workforce, with 1,944 employees versus 22.

Which has more US federal contracts, Portal Space Systems or United Launch Alliance?

United Launch Alliance has been awarded more, with $6.75B across 12 awards.

Which has more launches, Portal Space Systems or United Launch Alliance?

United Launch Alliance leads with 211 tracked launches (82% success rate).

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