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 Ursa Major Technologies Designs and manufactures liquid rocket engines, solid rocket motors, and hypersonic propulsion systems for commercial launch and U.S. defense applications. Ursa Major Technologies logo
HEAD-TO-HEAD1 shared sector
Portal Space Systems Ursa Major Technologies
Founded 2021 2015
Headquarters Bothell, Washington, USA 19750 Co Rd 7, Berthoud, Co 80513
Type private private
Status operating operating
Employees 22 291
Total funding $20M+ $549.4M
Latest round Seed Debt Financing
Sectors Space Transportation & Logistics, Satellite Manufacturing, Space Propulsion Space Propulsion, Satellite Components & Subsystems, Space Defense Systems
Products listed 3 6
Federal contracts
Launches
Leaders listed Jeff Thornburg, Ian Vorbach, Prashaanth Ravindran Chris Spagnoletti, Bill Nash, Justin Siebert
News mentions 0 18
SHARED SECTORS
FREQUENTLY ASKED

How do Portal Space Systems and Ursa Major Technologies compare?

Both companies work in Space Propulsion. Portal Space Systems was founded in 2021 and Ursa Major Technologies in 2015.

Which is larger, Portal Space Systems or Ursa Major Technologies?

Ursa Major Technologies reports the larger workforce, with 291 employees versus 22.

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