Space Tech Startups

Quantum Space develops the Ranger spacecraft platform, a highly maneuverable satellite engineered for space defense, orbital mobility, and cislunar operations across LEO, MEO, GEO, and beyond. It serves national security customers including the U.S. Space Force and Department of War, as well as commercial space operators.

1 investor

Rakon designs and manufactures high-performance frequency control products such as temperature compensated crystal oscillators (TCXOs), oven controlled oscillators (OCXOs), crystals, and GNSS receiver modules. Its components serve the telecommunications, 5G, AI data centre, space, defence, and positioning markets.

1 investor

Raptor Dynamix develops integrated sensing and intelligence systems powered by AI for defense, intelligence, and critical infrastructure applications. The company delivers real-time autonomous solutions for space warfighting, multi-domain command and control, and time-critical operations in contested environments.

1 investor

Raptor Scientific designs test and measurement equipment and services for the aerospace, defense, space, and marine industries, including avionics test systems, air data calibrators, heat flux transducers, mass-properties measurement devices, and radar/RF/microwave test systems. It also provides related calibration, repair, engineering, system integration, and training services.

1 investor

Rarefied develops solar-powered propulsion systems that use sunlight for sustained flight in the upper atmosphere (30-100 km) without conventional fuel. Its aerospace platforms target applications including weather monitoring, disaster preparedness, space weather prediction, and telecommunications as alternatives to satellites and aircraft.

1 investor

RTX designs, builds, and supports aerospace systems and defense technologies for aviation and national defense customers. The company operates through three business units spanning commercial flight and military applications.

1 investor

Re Cae is a Swiss company developing an operating system for space missions with an emphasis on sovereign control of the underlying infrastructure. The software is intended to support the management of spacecraft and space-based operations. It targets organizations and agencies conducting exploration and other activities in orbit and beyond.

1 investor

ReOrbital develops satellite servicing and in-space manufacturing technologies for government and commercial space applications. The company specializes in orbital refueling, satellite repair, and debris removal services.

1 investor

ResearchSat is a CRO/CDMO providing microgravity research services for biopharma and life-science teams, running staged studies from ground screening to orbital experiments to generate CMC-relevant data for biologics, formulations, and translational R&D. It designs experiments, builds payloads, manages missions, and delivers decision-grade datasets with regulatory-aware documentation for biotech companies, government agencies, and research institutions.

1 investor

ResilienX is a systems integrator for uncrewed aviation ecosystems, connecting multi-vendor technologies into a single coherent, safe, and scalable system for agencies and operators. It offers products including a vendor-neutral data exchange (AAM OptiX), model-based systems engineering, and an in-time aviation safety management system (FRAIHMWORK) supporting the low-altitude economy and advanced air mobility.

1 investor

Revolve Robotics develops inspection, surveillance, and maintenance robots for hard-to-reach industrial environments, with applications in inspection, construction, security, public safety, and defense sectors. The company combines expertise in drone technology with robotics engineering to create mobile robots for previously inaccessible spaces.

1 investor

Ridge-i develops AI and satellite data analytics solutions for disaster prevention, forest monitoring, environmental management, and manufacturing optimization. The company serves enterprise clients and government agencies across Japan.

1 investor

RIFFAI develops satellite and artificial intelligence systems for Earth observation, working to connect space technology applications to real-world problems on a planetary scale. The company serves engineers, technologists, scientists, and research institutions working on aerospace and advanced technology challenges.

1 investor

RIVIR is a New Zealand IoT company that provides hybrid satellite-cellular connectivity for remote and critical industrial infrastructure, enabling monitoring and control of assets in areas without cell coverage.

1 investor

Robinson Aerospace Systems makes RASCube, a flatpack CubeSat kit and accompanying software that lets students assemble a replica satellite and work with live sensor data. It targets schools and universities for hands-on STEM, physics, and engineering education.

1 investor

Rocket Lab is an end-to-end space company providing launch services via the Electron and upcoming Neutron vehicles, along with spacecraft design, manufacture, and components for commercial, civil, and defense customers. The company serves satellite operators and mission planners globally with complete solutions from launch to on-orbit management.

1 investor

Rovial develops high-power systems for satellites, aiming to provide greater in-orbit power capacity at lower cost than current 25-30KW satellites. It targets GEO/MEO applications such as in-orbit data processing, secure data centers, in-orbit manufacturing, high-power radars, detection payloads, lasers, and lunar missions.

1 investor

SafeKey Lab builds cybersecurity for autonomous spacecraft, offering space domain awareness, onboard defense for the command bus and onboard AI, and adversarial red-team testing through its Vela platform. It serves government space programs, commercial constellation operators, and satellite manufacturers, and offers an adjacent module for AI security in the ground segment.

1 investor

Safety from Space develops Beagle, an adaptive software-defined radio waveform (delivered as software and firmware) that runs on existing satellites and third-party hardware to provide resilient two-way communications in contested or degraded spectrum. It targets defense, emergency services, and search-and-rescue applications, from wearable distress beacons to satellite payloads.

1 investor

Samara develops satellite systems using its patented MSAC technology, which embeds actuators in the hinges of deployable solar panels to provide 3-axis attitude control and active jitter cancellation without reaction wheels. Its Hummingbird satellite bus targets the commercial low-Earth-orbit market for applications such as imaging and space situational awareness.

1 investor

Sateliot develops a low-earth orbit satellite constellation delivering 5G IoT connectivity via non-terrestrial networks (NTN) to unconnected regions and IoT devices globally. The company operates standardized 3GPP-compliant satellite infrastructure for delay-tolerant applications across Europe and beyond.

1 investor

Satelligence provides satellite-based monitoring software that delivers sustainability and deforestation transparency data to global corporates, supporting sustainable agriculture and supply-chain accountability. The company serves large corporate clients needing environmental and biodiversity monitoring data.

1 investor

Satellite Evolution is a media platform providing daily news, expert analysis, video interviews, podcasts, magazines, and events for professionals in the satellite, space, defence, and communications sectors. It offers a multichannel content platform and an industry directory connecting satellite operators, manufacturers, and service providers across the supply chain.

1 investor

SATLANTIS develops high and very-high-resolution optical imagers and microsatellites for Earth and universe observation, offering integrated solutions for applications such as greenhouse gas/methane monitoring, oil and gas sector services, and intelligence, surveillance and reconnaissance. Its technology is used on satellite missions launched via partners including the ISS, ESA, and SpaceX rockets.

1 investor