Alternatives to Portal Space Systems

Developing fully reusable rockets for low-cost, on-demand access to and from space.

Global data and analytics company providing real-time insights from space-based assets.

Loft Orbital provides a full-stack solution for deploying and operating microsatellites in orbit.

European leader in space launchers and defense systems, developing and operating reliable civil and military launch vehicles.

American aerospace company developing launch vehicles and spacecraft for commercial and government customers.

An end-to-end space company providing launch services, satellite manufacturing, and space systems solutions.

Global leader in synthetic-aperture radar (SAR) satellite data and analytics for near real-time insights.

Planet Labs PBC operates the largest fleet of Earth observation satellites, providing daily imagery and geospatial data for various industries.

Develops next-generation, high-thrust electric plasma propulsion systems for the space industry.

Manufacturer of small satellites and satellite-based solutions for government and commercial partners.

Developing advanced, high-performance rocket engines for the next generation of space exploration.

Space DOTS provides space environmental intelligence to enhance spacecraft safety and mission success.

A leading Chinese commercial aerospace company developing and operating the Jilin-1 remote sensing satellite constellation.

Software for space mission planning and operations.

Starlink is SpaceX's satellite internet constellation providing high-speed broadband internet access to underserved areas worldwide.

Manufactures high-performance small spacecraft and components for space missions.

Designs, manufactures, and launches advanced rockets and spacecraft, aiming to make humanity multiplanetary.

Japanese space tech startup developing hybrid rocket propulsion systems for satellite, launch, defense, and security applications.

SpaceFlux is developing advanced propulsion systems for in-space transportation and satellite maneuvering.

Spacecraft propulsion and in-space logistics company developing water-based electric propulsion systems.