Alternatives to ISPTech

A space networking startup developing advanced communications technology for satellite constellations.

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

Designs and manufactures spacecraft solutions for government and commercial customers.

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

Building a space-based economy with a reusable spaceplane and orbital destinations.

Developing reusable spacecraft to manufacture pharmaceuticals and high-end materials in microgravity for Earth use.

European private space ventures redefining independent orbital infrastructure.

Specializes in plasma propulsion systems for spacecraft.

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

Diamond cooling solutions for AI data center efficiency and high-performance satellite communications.

Specializes in propulsion systems for small satellites.

Building satellites for very low Earth orbit (VLEO) to advance global connectivity and insight.

Developing high-powered solar thermal propulsion for spacecraft.

Provider of space domain awareness, intelligence, and advanced missile defense technology solutions.

A Spanish company developing small satellite launch vehicles.

Develops radiation shielding solutions for space.

Develops electrospray propulsion systems for satellites.

Provides optical and photonic components for space.

A next-generation commercial space station for the post-ISS low-Earth orbit economy.

A venture capital firm focused on deeptech innovation.