SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
Perigee Aerospace logo Perigee Aerospace Develops small-lift methane-fueled launch vehicles and manufactures liquid propulsion systems, composite tanks, and satellite thrusters 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
Perigee Aerospace Portal Space Systems
Founded 2018 2021
Headquarters Daejeon, South Korea Bothell, Washington
Type private private
Status operating operating
Employees 16 22
Total funding $56.6M $20M
Latest round Series D Seed
Sectors Launch Services, Satellite Components & Subsystems, Space Propulsion Space Transportation & Logistics, Satellite Manufacturing, Space Propulsion
Products listed 6 3
Federal contracts
Launches
Leaders listed Yoon Shin, Seonghyeon Seo, Alan Kim Jeff Thornburg, Ian Vorbach, Prashaanth Ravindran
News mentions 15 0
SHARED SECTORS
FREQUENTLY ASKED

How do Perigee Aerospace and Portal Space Systems compare?

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

Which is larger, Perigee Aerospace or Portal Space Systems?

Portal Space Systems reports the larger workforce, with 22 employees versus 16.

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