SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
CAS Space logo CAS Space Develops solid and liquid-propellant launch vehicles for dedicated and rideshare satellite missions, suborbital scientific experimentation, and space tourism 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
CAS Space Portal Space Systems
Founded 2018 2021
Headquarters China Bothell, Washington
Type private private
Status operating operating
Employees 800 22
Total funding $126.1M $20M
Latest round Series C-II Seed
Sectors Launch Services, Space Propulsion, Suborbital & High-Altitude Space Transportation & Logistics, Satellite Manufacturing, Space Propulsion
Products listed 6 3
Federal contracts
Launches 14 (93%)
Leaders listed Yang Yiqiang, Liu Weipeng Jeff Thornburg, Ian Vorbach, Prashaanth Ravindran
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do CAS Space and Portal Space Systems compare?

Both companies work in Space Propulsion. CAS Space was founded in 2018 and Portal Space Systems in 2021.

Which is larger, CAS Space or Portal Space Systems?

CAS Space reports the larger workforce, with 800 employees versus 22.

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

CAS Space leads with 14 tracked launches (93% success rate).

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