- Aerojet Corporation: Aerojet, a GenCorp company, is a major aerospace/defense contractor specializing in missile and space propulsion, and defense and armaments.
- Alaska Aerospace Corporation: The Alaska Aerospace Corporation (AAC) core business area is space launch, and it developed, owns, and operates the Kodiak Launch Complex, a state-of-the-industry spaceport on Kodiak Island, Alaska, that provides access to space for commercial and government interests.
- Andøya Space: Headquartered on the scenic island of Andøya in northern Norway, Andøya Space is an aerospace company with over six decades of operational experience. With a “can-do” attitude we support scientists, engineers, students and government entities by providing the means to fly, launch, test, research, educate and inspire.
- Arianespace: Arianespace is the commercial launch services leader, holding more than 50 percent of the world market for satellites to geostationary transfer orbit (GTO). Created as the first commercial space transportation company in 1980, Arianespace has signed contracts for 250 satellite payloads.
- Asia Pacific Space Centre: Asia Pacific Space Centre is an international commercial space launch services company that is planning to develop a commercial launch space centre on the Australian Territory of Christmas Island. APSC will develop a spaceport facility and a commercial satellite launch capability with use of a Russian launch system.
- Astrobotic Technology: We’re the Moon company and more. We specialize in making space missions feasible and more affordable for science, exploration, and commerce. And we think the Moon is a great place to start. As a lunar logistics company, we provide end-to-end delivery services for payloads to the Moon.
- Astrotech: Astrotech Corporation (Nasdaq: ASTC), formerly SPACEHAB, Inc., has led the commercial space industry for 25 years, preparing and sending satellites, cargo and science into space.
- Astrox Corporation: Established in 1987, Astrox is capable if providing quality research related to Single-Stage-to-Orbit (SSTO), and TSTO vehicle designs, hypersonic aircraft and missile design, rocket system design, aviation systems, computational fluid dynamics, theoretical fluid mechanics and advanced studies for workstations.
- Bigelow Aerospace: Bigelow Aerospace vision is to play a major role in drastically altering the current restricted environment surrounding private ownership and use of space stations by making habitable space stations affordable for corporate communities.
- Blue Origin: Blue Origin is a privately funded aerospace company set up by Amazon.com founder Jeff Bezos. Blue Origin is developing New Shepard, a rocket-propelled vehicle designed to routinely fly multiple astronauts into suborbital space at competitive prices. In addition to providing the public with opportunities to experience spaceflight, New Shepard will also provide frequent opportunities for researchers to fly experiments into space and a microgravity environment.
- Bristol Aerospace: Bristol Aerospace Limited is a leading Canadian aerospace company. The Black Brant family of sounding rockets, manufactured by Bristol Aerospace, is used for studying the upper atmosphere or conducting micro-gravity research. As well, Bristol plays a key role in the development, manufacture, integration and packaging of space payloads for sounding rockets and NASA's space shuttle program. Bristol is currently involved in small satellite development for the Canadian Space Agency.
- Bristol Spaceplanes: Bristol Spaceplanes Limited, based in Bristol, England, was formed in 1991 to provide technical assistance to commercial organisations and aerospace companies interested in low cost satellite launches, and in tourism in space. Since then it has prepared plans to develop the Ascender sub-orbital spaceplane, and an experienced core design team has been formed.
- California Spaceport: The California Spaceport is a commercially operated complex on Vandenberg Air Force Base. The Spaceport provides commercial payload processing and launch alternatives to cost conscious customers with either polar or ballistic space launch programs.
- Coleman Aerospace: Coleman Aerospace has experience in missile system fabrication and integration, flight operations, mission planning, and launch management services.
- Ecliptic Enterprises: Ecliptic's popular RocketCamT imaging systems and related data-transport systems are used routinely on launch vehicles, spacecraft and other remote platforms in the air-land-sea arenas to provide dramatic engineering and PR-quality color video. Ecliptic pursues and supports other special projects involving aerospace avionics, ground systems and small space payloads and instrumentation.
- E'Prime Aerospace: E'Prime Aerospace Corporation (EPAC) was established in February, 1987, to capitalize on the worldwide demand for commercial satellite launching services. EPAC has succeeded in evolving the technology of the Peacekeeper ICBM into a commercial launch vehicle and is marketing a range of launch vehicles with payload capabilities from small communications satellites up to large multipurpose satellites of 20,000 pounds into a geosynchronous earth orbit.
- Eurockot: A joint venture of EADS Astrium and Khrunichev Space Center and performs launches of satellites into Low Earth Orbits (LEO) for institutional and commercial satellite operators.
- Exos Aerospace: Exos Aerospace Systems & Technologies is an aerospace manufacturer and developer of reusable launch systems intended to support uncrewed orbital spaceflight launches, and is based in Caddo Mills, Texas.
- HMX: HMX principals have extensive experience in innovative launch vehicle design. HMX is conducting proprietary research for a new commercial space venture, and preparing to assist an industry team developing a new bipropellant rocket engine for a space launch vehicle with thrust levels above 30,000 pounds.
- International Launch Services: International Launch Services (ILS) provides mission management and launch services for the global commercial satellite industry using the premier heavy lift vehicle, the Proton.
- Interorbital Systems: Founded in 1996, Interorbital Systems (IOS) is located at the Mojave Civilian Flight Test Center in Mojave, California. IOS manufactures everything in-house, including liquid rocket engines, tankage, and guidance systems. At present, IOS is developing low-cost sounding rockets. Flight tests are in progress. The Research Series and Tachyon Series rockets will soon be available to anyone looking for a low-cost sub-orbital launcher.
- JP Aerospace: JPA intends to be the first amateur organization to place a payload into space. The current project is to launch a rocket with a scientific payload to an altitude of 50 miles. This will be accomplished by lofting a launch system to an altitude of 100,000 feet by balloon.
- Kelly Space & Technology: Kelly Space & Technology, Inc. (KST) is an engineering design and technology development company incorporated in April 1993 under the laws of the State of California for the purpose of developing a family of low cost, reusable, commercial suborbital and orbital launch vehicles.
- Rocketplane Global: Rocketplane Global is building a highly robust and flexible space launch system based upon rocket powered aircraft and applying in-flight propellant transfer to enable inexpensive satellite launches. The new vehicles thus created will revolutionize space launch and enable greater commercial opportunities in space. This system will open the space frontier to many new and exciting applications.
- Solar Skiff: Founded in 2004, Solar Skiff is a start-up spaceplane company based in southeast Wyoming, U.S.A. Their focus is the incremental development of a safe and practical reusable launch vehicle based on sound aeronautical and astronautical principles, with the potential for high-speed intercontinental transport, single-stage-to-orbit, lunar, and interplanetary operations.
- Space Vector Corporation: Over the past 30 years, Space Vector has launched 37 rockets in support of various scientific and defense related projects with an enviable 94% success rate. Many of their vehicles are boosted by refurbished Minuteman motors that have proven to be very reliable and cost effective.
- Space Operations: Founded in 2010, Space Operations, Inc. (SOI) was established to satisfy a growing world-wide demand for a reliable and affordable spacecraft vehicle with capacity for carrying flight crews and vital cargo into space.
- Spaceflight: Spaceflight, Inc. is an American aerospace company based out of Seattle, Washington, that specializes in organizing rideshare space launches of secondary payloads.
- SpaceWorks Enterprises: SpaceWorks Enterprises, Inc. (SEI) is an aerospace engineering concept design and systems analysis firm focusing on next-generation space transportation systems, future technologies, human and robotic exploration of space, and emerging space markets and applications.
- SpaceX: SpaceX is developing a family of launch vehicles intended to reduce the cost and increase the reliability of access to space ultimately by a factor of ten. The company officially began operations in June 2002 and is located in the heart of the aerospace industry in Southern California.
- Starchaser Industries: Starchaser Industries is a privately held, high technology company that specialises in the development, operation and commercialisation of products and services which enable new space related business opportunities by providing safe, reliable, affordable and reusable access to space for both the Space Tourism and micro-satellite launch markets.
- Starsem: Created in 1996, Starsem offers the Soyuz for a broad range of mission needs, including satellite telecommunications systems, scientific spacecraft, and Earth observation/meteorological platforms.
- TGV Rockets: TGV Rockets is an innovative start-up company pioneering a unique new class of reusable, low cost, piloted sub-orbital rocket. TGV Rockets will market vehicles and services to industry, researchers, military organizations and interested individuals. TGV Rockets intend to dominate the high altitude and sub-orbital research operations market, providing high value to customers and investors.
- UTRON: UTRON is a small, closely held Virginia based corporation founded in 1989. UTRON personnel are experts at high velocity launch technologies, launching masses ranging in size from gms to kilograms to velocities over 7 km/s. UTRON is actively putting together a consortium of partners to pursue gun launch to space.
- Virgin Galactic: Virgin Galactic is a company within Richard Branson's Virgin Group which plans to provide sub-orbital spaceflights to the paying public, along with suborbital space science missions and orbital launches of small satellites. Further in the future Virgin Galactic hopes to offer orbital human spaceflights as well.
- XCOR Aerospace: XCOR is focused on the research, development and production of safe, reliable, reusable launch vehicles (RLVs), rocket engines and rocket propulsion systems. In just eleven years the firm has developed and built twelve different rocket engines and built and flown two manned rocket-powered aircraft.
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