Sustained Space Maneuverability
High delta-v propulsion for repeated, on-demand orbital repositioning.
Multi-Mission Flexibility
Supports diverse payloads and evolving mission needs from a single platform.
On-Orbit Resilience
Multi-year endurance with radiation tolerance and autonomous taskability.
PORTAL SPACE SYSTEMS
See us at Paris Air Show 2025 · Booth: AB148
Portal Space Systems develops advanced spacecraft for the congested and contested space domain. Founded in 2021 and based in Bothell, Washington, the company is led by Jeff Thornburg, former VP of Propulsion Engineering at SpaceX and the architect of its Raptor engine program.
Bothell, Washington (WA), United States
Aerospace, Defense & Security
People
Connect with us at
Paris Air Show 2025
About
Portal Space Systems is a Seattle-based space start-up solving the need for mobility in space.
Our flagship product, the Supernova satellite bus, is engineered for rapid and long-range in-space maneuverability. Our payload-agnostic, 500 kg spacecraft features a novel solar-thermal propulsion system, which enables an ultra-high delta-v, a 50X improvement over existing products on the market.
The company was founded in 2021 by industry leader Jeff Thornburg, alongside COO Ian Vorbach and VP of Engineering Prashaanth Ravindran.
We are on a mission to empower the next generation of space operators to maintain space superiority.
Our flagship product, the Supernova satellite bus, is engineered for rapid and long-range in-space maneuverability. Our payload-agnostic, 500 kg spacecraft features a novel solar-thermal propulsion system, which enables an ultra-high delta-v, a 50X improvement over existing products on the market.
The company was founded in 2021 by industry leader Jeff Thornburg, alongside COO Ian Vorbach and VP of Engineering Prashaanth Ravindran.
We are on a mission to empower the next generation of space operators to maintain space superiority.
