Portal Systems

Portal Space Systems builds maneuverable spacecraft that move payloads between orbits, support national security, and extend satellite missions in space.

Portal Space Systems develops highly maneuverable spacecraft that move payloads quickly between orbits for defense, science, and commercial customers. Its Supernova platform uses solar thermal propulsion to reposition satellites, support cislunar logistics, and extend mission life with in-space servicing and constellation maintenance. The company helps operators respond faster to threats, maintain space assets, and reach new orbital regimes more efficiently.

Reaction Dynamics

Reaction Dynamics develops hybrid rocket engines and launch vehicles that cut launch costs, boost reliability, and provide dedicated small satellite access to orbit.

Reaction Dynamics builds hybrid rocket engines and launch vehicles for small satellites, using a simplified propulsion system to lower launch costs and reduce technical risk. Its rockets support frequent, dedicated launches so operators can choose their launch schedule and reach precise low Earth orbits without relying on shared rides.

Reflex Aerospace

Reflex Aerospace designs and builds custom low Earth orbit satellites for secure communications, Earth observation, and rapid mission deployment.

Reflex Aerospace designs and manufactures custom satellites for low Earth orbit missions. The company develops payload-centric platforms for secure communications, imaging, and data relay, delivering spacecraft on shorter timelines than traditional satellite builders. Its satellites support commercial, government, and defense customers that need reliable connectivity, surveillance, and monitoring in space.

Velontra

Velontra develops compact hypersonic jet engines and a reusable space plane to launch satellites and payloads directly from standard runways.

Velontra builds small, powerful jet engines and hypersonic propulsion systems for drones, aircraft, and future space planes. Its technology uses air‑breathing engines to cut fuel use, lower launch costs, and carry more payload to high altitude and low Earth orbit. The company focuses on rapid, low-cost hardware development to support defense, commercial aviation, and satellite launch customers.

ROVIAL Space

Rovial Space develops AI-driven robotic platforms that build and service high-power solar satellites to deliver reliable, clean energy for space missions.

Rovial Space builds permanent high-power solar platforms in orbit using autonomous AI-enabled robotics. These satellites generate large amounts of clean, continuous energy and host pressurized environments for advanced payloads, data centers, communications, and other space services. The robotic systems assemble, maintain, and repair the platforms in space, extending their working life and reducing waste from repeated launches.

SpaceRig

SpaceRig provides logistics, processing, and testing services for spacecraft so operators can prepare vehicles for launch quickly and reliably.

SpaceRig runs dedicated facilities and mobile units that receive, process, test, and handle spacecraft before launch. It coordinates logistics, on-site infrastructure, and technical workflows so operators do not need to build or maintain their own production and processing sites. This lets commercial and government space operators move from mission order to launch-ready spacecraft with less cost, complexity, and delay.

Samara Aerospace

Samara Aerospace develops Hummingbird, a compact satellite bus that boosts power, agility, and pointing stability for commercial and government space missions.

Samara Aerospace builds Hummingbird, a small satellite bus that replaces traditional reaction wheels with MSAC-controlled solar panel hinges for precise, low-jitter pointing. This compact, modular platform increases launch capacity, cuts production complexity, and supports sharper Earth imaging, higher data rates, and rapid-response space operations for commercial and defense customers.

U-Space

Designs and builds constellation-ready small satellites and nanosatellites, from first study to in-orbit operations for commercial and institutional missions.

U-Space designs and builds small satellites and nanosatellites for customers that need reliable constellations in orbit. The company handles the full project, from early feasibility studies and satellite platform selection to manufacturing, testing, launch support and operational control. It delivers standardized satellite platforms and related services that shorten delivery times and reduce technical risk for commercial and institutional space projects.

VAST

Vast develops private space stations that support long-term human stays in orbit for research, manufacturing, and commercial missions.

Vast develops private space stations designed for long-term human stays in orbit, giving crews a place to live and work beyond Earth. These stations support microgravity research, in-space manufacturing, and commercial missions for government, corporate, and private customers. The company builds modular stations, starting with its Haven platforms, to replace aging orbital labs and keep people continuously working in space.

VENG

VENG develops and tests space systems, launch solutions and satellite services, delivering high‑reliability engineering for complex aerospace projects.

VENG provides engineering, manufacturing, integration and testing services for space missions and advanced technology projects. The company designs and validates launch systems, satellite components and ground segment solutions, including antennas, electronics, and thermal control. Its teams handle the full lifecycle of hardware and software, from concept and detailed design through specialized machining, assembly and environmental testing, to deliver dependable aerospace systems.