SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
ispace logo ispace Designs and operates lunar landers and rovers, providing payload delivery, surface exploration, and data services to build cislunar infrastructure 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
ispace Portal Space Systems
Founded 2010 2021
Headquarters Tokyo, Japan Bothell, Washington
Type public private
Status operating operating
Employees 300 22
Total funding $20M
Latest round Seed
Sectors Lunar Services, Planetary Exploration, Space Transportation & Logistics Space Transportation & Logistics, Satellite Manufacturing, Space Propulsion
Products listed 5 3
Federal contracts
Launches
Leaders listed Takeshi Hakamada, Jumpei Nozaki, Elizabeth Kryst Jeff Thornburg, Ian Vorbach, Prashaanth Ravindran
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do ispace and Portal Space Systems compare?

Both companies work in Space Transportation & Logistics. ispace was founded in 2010 and Portal Space Systems in 2021.

Which is larger, ispace or Portal Space Systems?

ispace reports the larger workforce, with 300 employees versus 22.

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