United Kingdom

A

ALL.SPACE PRIVATE

operating

Multi-orbit electronically steered antenna terminals for defense, government, and satellite connectivity

A

Alba Orbital PRIVATE

operating

Designs and manufactures PocketQube picosatellites, brokers rideshare launches, and operates a nighttime Earth observation constellation

B

BAE Systems PUBLIC

operating

Builds Earth-observation and weather instruments, space science payloads, small satellites, and missile-warning and tracking spacecraft

B

BioOrbit PRIVATE

operating

London-based space manufacturing company developing hardware for large-scale crystallisation of protein drugs in

B

Bright Ascension PRIVATE

operating

UK space software specialist offering flight software, mission control, and ground systems for satellites

C

CASA Space Technologies PRIVATE

operating

Developing aerodynamic coatings to reduce satellite drag in very low Earth orbit

F

Filtronic PRIVATE

operating

UK designer and manufacturer of RF, microwave, and mmWave components and subsystems for telecoms, defence, and space

F

Frontier Space Technologies PRIVATE

operating

Develops autonomous miniaturized laboratories and bioreactor platforms for pharmaceutical research and biomanufacturing in microgravity

L

Lacuna Space PRIVATE

operating

Operates a low-Earth orbit satellite network providing direct-to-device IoT connectivity for remote sensors using its proprietary LoneWhisper protocol based on LoRaWAN

L

Lodestar Space PRIVATE

operating

Orbital defense as a service, using autonomous AI-driven bodyguard satellites to protect high-value assets in space

M

Magdrive PRIVATE

operating

Develops high-thrust electric plasma propulsion systems for satellites and spacecraft using pulsed power and solid metal propellant

N

NewOrbit Space PRIVATE

operating

Designing satellites for ultra-low Earth orbit at 180–250 km altitude to enable higher-resolution imaging and connectivi

O

Odin Space PRIVATE

operating

Develops a network of space-based acoustic sensors designed to detect and characterize sub-centimeter orbital debris for satellite operators and insurers

O

Open Cosmos PRIVATE

operating

Designs, builds, launches, and operates small satellites for Earth observation, telecommunications, navigation, and science missions

O

Orbital Astronautics PRIVATE

operating

UK nanosatellite manufacturer building small satellites and subsystems for constellation operations

O

Oxford Space Systems PRIVATE

operating

UK developer of deployable antennas and structures for satellites, with verified in-orbit heritage

P

Paradigm PRIVATE

operating

Satellite communication equipment manufacturer and earth station provider based in Alton, Hampshire

P

Peak Communications Ltd PRIVATE

operating

UK designer and manufacturer of satellite communications RF equipment, founded 1995

P

Plextek PRIVATE

operating

RF & sensing engineering consultancy offering space electronics, debris detection, and lunar systems solutions

P

Protolaunch PRIVATE

operating

In-space propulsion systems, throttling control valves, and propulsion testing services from Westcott, UK

P

Pulsar Fusion PRIVATE

operating

UK propulsion company building Hall effect thrusters today and nuclear fusion rocket engines for the future

R

Responsive Access PRIVATE

operating

Edinburgh-based launch brokerage and space logistics consultancy for payload operators

S

SatVu PRIVATE

operating

Operates high-resolution thermal infrared imaging satellites that capture heat signatures at 3.5-meter resolution, day and night, from low Earth orbit

S

Satraka PRIVATE

operating

Patent-pending beam-tracking and flat-panel antennas for NGSO satellite connectivity

S

SaxaVord Spaceport PRIVATE

operating

Spaceport under development on Unst, Shetland, positioned to support small satellite and suborbital launches