SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
Aetherflux logo Aetherflux Develops space-based solar power satellites that collect sunlight in low Earth orbit and transmit energy to portable ground receivers via infrared lasers 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
Aetherflux Portal Space Systems
Founded 2024 2021
Headquarters San Carlos, California Bothell, Washington
Type private private
Status operating operating
Employees 40 22
Total funding $60M $20M
Latest round Series A Seed
Sectors Satellite Manufacturing, In-Space Manufacturing Space Transportation & Logistics, Satellite Manufacturing, Space Propulsion
Products listed 3 3
Federal contracts
Launches
Leaders listed Baiju Bhatt, Joe Yaffe Jeff Thornburg, Ian Vorbach, Prashaanth Ravindran
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Aetherflux and Portal Space Systems compare?

Both companies work in Satellite Manufacturing. Aetherflux was founded in 2024 and Portal Space Systems in 2021.

Which is larger, Aetherflux or Portal Space Systems?

Aetherflux reports the larger workforce, with 40 employees versus 22.

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