Space Walker is an aerospace company. It develops a launch vehicle that orbits small satellites and carries tourists on suborbital flights. Its space vehicle pipeline includes winged test rockets, suborbital spaceplanes, and more. The company was founded in 2017 and is based in Tokyo, Japan.

Spaceworks Engineering (sei) is a company that received a Department of Defense SBIR/STTR grant for a project entitled: A Thrust-Oriented Combined-Cycle Engine for Space Access. The abstract given for this project is as follows: SpaceWorks Engineering, Inc. (SEI) seeks government support to conduct preliminary development activities toward a unique new combined-cycle propulsion system for use in next-generation missiles, space access vehicles, and hypersonic strike aircraft. Combined-cycle engines advantageously integrate the best aspects of rocket engines and high-speed airbreathing engines and have been shown to offer vehicle-level weight, size, and cost advantages relative to separately installed propulsion alternatives. SEIs highly flexible SCAAT-Engine (Supersonic Core Air Augmented Thrusting - Engine) enables vehicle-optimized operation over a wide range of flight velocities and altitudes. Unlike other combined-cycle engine concepts, the SCAAT-Engine is specifically designed for adequate acceleration over the entire flight regime. For a nominal space access or long-range missile mission, the primary rocket is engaged for the entire flight -- generating a supersonic core flow exhaust stream. The supporting secondary airflow from the inlet and the ramscoops increases the rockets Isp by an average of 15% - 30% when combusted. The result is a small, compact and low cost vehicle configuration. Nominal propellants are LOX/LH2, but hydrocarbon alternatives are also candidate fuels. BENEFIT:SpaceWorks Engineering, Inc. (SEI) believes that a unique combined-cycle engine concept, if matured according to this research effort, would have several potential customers. If the SCAAT-Engine technology was licensed to a large-scale engine manufacturer, we estimate that hundreds of engines could be produced for the following potential customers: Emerging Commercial Space Access Firms, NASA/Civil Space Applications, Military Space Access Applications, and Military High Speed Missile Applications.

HyperSciences provides geothermal drilling technology. The company offers solutions for tunneling, energy drilling, transportation, aerospace, and materials production. The company was founded in 2015 and is based in Spokane, Washington.

Leaf Space is a ground-segment-as-a-service provider. It provides an end-to-end solution for satellite operators to send instructions to space assets and get data back to Earth. It offers various services, including timeshare access to the ground, telecommunication solutions, ground station procurement, consultancy, and backup services. The company was founded in 2014 and is based in Lomazzo, Italy.

Space One is developing a launch service using a small rocket. The company serves clients operating in the aerospace sector. It was founded in 2018 and is based in Tokyo, Japan.

bluShift Aerospace offers an eco-friendly, dedicated small satellite launch solution. It develops a low-cost, carbon-composite rocket capable of deploying miniature satellites, known as CubeSats, to meet the increasing market backlog by private companies and institutions. The company was founded in 2014 and is based in Brunswick, Maine.