Space Tech Startups

Orbital builds commercial AI compute infrastructure in Low Earth Orbit, deploying satellite-hosted GPU payloads with high-bandwidth ground links for AI inference. The company positions space-based data centers as a way to bypass terrestrial power grid constraints.

1 investor

Orbital Arc develops lightweight electric propulsion systems with exceptionally high power density for spacecraft. The company's thrusters and power processing units are designed for satellite operators to reduce launch costs and extend mission duration.

1 investor

Orbital provides a global oil spill detection and drift prediction service that combines satellite-based detection with spill trajectory forecasting, delivering updates up to eight times per day. It also monitors dark ships for organizations concerned with maritime and environmental risks.

1 investor

Orbital Matter designs and builds large rigid structures directly in orbit using its Printer Assisted Deployment System (PADS), which constructs continuous booms from 10m to 100m+ without hinges or folding mechanisms. The technology supports large-area space hardware such as solar arrays, radiators, and antennas for satellite constellations, space data centers, and multi-module space stations.

1 investor

Orbital Matter designs and builds large rigid structures directly in orbit as an alternative to mechanical folding/deployable systems, targeting large-area elements such as solar arrays, radiators and antennas for satellite constellations, space data centers and multi-module space stations. Its approach constructs continuous monolithic booms in space rather than launching pre-folded hardware.

1 investor

Orbital Paradigm builds reusable orbital freighter vehicles that deliver satellites to precise orbits, transport microgravity experiments and materials, and return payloads via precision landing in Europe. It serves satellite constellation operators, pharmaceutical, biotech, and advanced materials companies needing in-space transport, logistics, and servicing.

1 investor

Orbital Micro Systems (now Weather Stream) develops and manufactures miniaturized millimeter-wave microwave radiometer instruments for ground, air, and space-based applications, including its GEMS family used for satellite meteorology and weather forecasting. It also supplies custom radiometer calibration hardware to partners such as Ball Aerospace and NASA JPL for defense and Earth-observation missions.

1 investor

Astronaut training and spaceflight complex operator.

1 investor

Oriensapce develops and operates commercial launch vehicles, including the Yali-1 rocket, which supports satellite payload integration and full vehicle launch services for space missions.

1 investor

Origami Space develops satellite systems using generative design and machine learning, delivering RF and LiDAR communications and intelligence capabilities for commercial and national security applications.

1 investor

OSMOS X develops ion propulsion and plasma-based systems for reusable, high-efficiency orbital vehicles aimed at satellite transportation, in-orbit servicing, and space debris mitigation. The NewSpace company targets space logistics for satellite operators and space agencies, with long-term ambitions toward lunar and Martian cargo transport.

1 investor

Parsimoni builds SpaceOS, a payload operating system that enables satellite operators to monetize idle on-board compute capacity by safely running multiple applications with hardware-backed isolation. The platform allows operators to deploy, update, and manage satellite applications using familiar cloud development workflows.

1 investor

Passerine Aircraft designs electric aircraft that achieve flight by launching from a jumping mechanism rather than using conventional takeoff methods.

1 investor

Peregrine Space Corp develops optical payloads for spacecraft, including precision timing and time-transfer systems, laser communication transceivers for satellite crosslinks and downlinks, and active/passive sensing payloads for surface characterization and space situational awareness. It serves space missions needing higher-precision navigation, surface feature recognition, and optical data links.

1 investor

The Planetary Society is a member-funded nonprofit that advances space science and exploration through space advocacy, education, and research, including efforts on Solar System discovery, the search for life beyond Earth, and asteroid impact defense. It engages members and supporters in space policy advocacy on issues such as NASA science funding and Mars sample return.

1 investor

Planetary Systems (PSAI) builds AI systems for data fusion and interoperability across launch and orbital operations, accelerating data flow and insight generation for decision-making in the space sector. It serves government and commercial space organizations, and is an approved analytics provider to the U.S. Space Force's SDA TAP Lab at U.S. Space Systems Command.

1 investor

Plasma Processes is a materials science company that develops, manufactures, and coats engineered materials for use in extreme environments, offering processes such as plasma spray coatings, additive manufacturing, machining, and testing. It serves defense, aerospace, and space markets—including propulsion components and thrusters through its Rubicon Space Systems line—as an AS9100D/ISO9001-certified non-traditional defense contractor.

1 investor

Plexus Aero provides a software data stack and monitoring platform designed for hardware fleets and physical systems. The platform enables teams managing drones, devices, and hardware-based systems to deploy, monitor, and debug their hardware similar to how software teams manage code deployments.

1 investor

Develops a space-based biotechnology process to produce human tissue organoids from autologous mesenchymal stem cells in microgravity, along with custom hardware for commercial-scale organoid production. Its organoids target pharmaceutical research and testing, precision medicine, and transplantation-based therapies.

1 investor

POLARIS develops reusable spaceplanes that take off and land horizontally at airports, along with a two-stage launch vehicle (AURORA) for small and medium satellites and linear aerospike rocket engines for hypersonic and orbital missions. The company builds and flies scaled demonstrators to validate its space transportation and hypersonic flight technology.

1 investor

POLARIS develops reusable spaceplanes that take off and land horizontally at airports, along with linear aerospike rocket engines and a two-stage launch vehicle (AURORA) for small and medium satellites. The company targets space transportation and hypersonic flight applications.

1 investor

Pramatra Space develops satellite-based quantum key distribution (QKD) systems using integrated photonics chips to deliver encryption keys to enterprises. The company provides quantum cryptography solutions designed to protect digital assets against ransomware and future quantum computing attacks.

1 investor

Prime Lightworks produces electric propulsion systems for satellites in orbit. The company aims to lower manufacturing costs and waste in space propulsion technology.

1 investor

Primo Capital is an Italian independent alternative investments platform that runs venture funds across climate, health, digital, and space sectors. It operates multiple investment strategies and a portfolio of technology companies in Italy.

1 investor