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 Space Pioneer Develops reusable kerosene-liquid oxygen launch vehicles and rocket engines for commercial and government satellite deployment missions Space Pioneer logo
HEAD-TO-HEAD1 shared sector
Portal Space Systems Space Pioneer
Founded 2021 2019
Headquarters Bothell, Washington Beijing, China
Type private private
Status operating operating
Employees 22 120
Total funding $20M $351M
Latest round Seed Series C
Sectors Space Transportation & Logistics, Satellite Manufacturing, Space Propulsion Launch Services, Space Propulsion
Products listed 3 6
Federal contracts
Launches 2 (50%)
Leaders listed Jeff Thornburg, Ian Vorbach, Prashaanth Ravindran Kang Yonglai
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Portal Space Systems and Space Pioneer compare?

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

Which is larger, Portal Space Systems or Space Pioneer?

Space Pioneer reports the larger workforce, with 120 employees versus 22.

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

Space Pioneer leads with 2 tracked launches (50% success rate).

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