During the early years of spaceflight only nation states had the resources to develop and fly spacecraft. Both the U.S. space program and Soviet space program were operated using mainly military pilots as astronauts. During this period, no commercial space launches were available to private operators, and no private organization was able to offer space launches.
In 1980s, the European Space Agency created Arianespace, the world's first commercial space transportation company, and, following the Challenger disaster, the American government too deregulated the American space transportation market. In the 1990s the Russian government sold their majority stake in RSC Energia to private investors. These events for the first time allowed private organizations purchase, develop and offer space launchers; beginning the period of private spaceflight.
The following is a list of non-government-owned spacecraft manufacturing companies and contractors.
Contents |
Satellite manufactures
There are five major companies that build large, commercial, Geosynchronous satellite platforms:
| Company | Location | No of satellites launched | Comments |
|---|---|---|---|
| Thales Alenia Space | Europe | formerly Alcatel Alenia Space | |
| Boeing | USA | ||
| EADS Astrium Satellites | Europe | a business unit of EADS Astrium | |
| Lockheed Martin | USA | ||
| Space Systems/Loral | USA |
In addition to those above, the following companies have successfully built and launched satellite platforms:
Launch vehicle manufactures
| Company | Location | No. of successful launches | Comments |
|---|---|---|---|
| Arianespace | Europe | 240+ | |
| Antrix Corporation | India | ||
| EADS Astrium Space Transportation | Europe | ||
| Eurockot Launch Services | Europe | owned by EADS Astrium | |
| International Launch Services | USA/Russia | 97/100 | |
| ISC Kosmotras | Russia/Ukraine/Kazakhstan | ||
| Orbital Sciences Corporation | USA | formerly owned ORBIMAGE (now GeoEye) | |
| SpaceDev | USA | owned by Sierra Nevada Corporation | |
| SpaceQuest, Ltd. | USA | ||
| SpaceX | USA | 1/4 | |
| Sea Launch | USA/Russia/Ukraine/Norway | 26/29 | owns subsidiary Land Launch |
| Starsem | Europe/Russia | commercialises the Soyuz launcher | |
| United Launch Alliance |
Lander, rover and probe manufacturers
| Company | Location | No. of probes launched | Comments |
|---|---|---|---|
Spacecraft component manufacturers
| Company | Location | Components built | Comments |
|---|---|---|---|
| American Technology Consortium | Oxnard, CA | Mars Pathfinder Airbag Retraction Actuator Planetary Gearboxes, Mars Pathfinder Camera Pointing Mechanisms, Stardust Scan Mirror Mechanism, Mars Volatiles and Climate Surveyor (MVACS) Robot Arm Brush Motors, MVACS Camera Pointing Mechanisms, Genesis Array Deployment Mechanism, Shuttle Radar Topography Mapper (SRTM) Mast Deployment Actuators, SRTM Harmonic Drive Actuators, A2100 & A2100M Bus Antenna Pointing Mechanism Linear Actuators, Orbview 3 & 4 Antenna Gimbals, Sirius Satellite Radio Antenna Gimbal Motors, Champollion Cryogenic Comet Drill Actuator, TES Filter Wheel Actuator, Mars Odyssey Mission PanCam Mast Deployment Actuator, Mars Odyssey PanCam Azimuth Twist Capsule and Actuator Assembly, Mars Odyssey PanCam Elevation Actuator, Mars Odyssey Drill Mechanism Gearboxes, and Mars Phoenix Camera Pointing Mechanisms | Asset sale to competitor in 2000, Original corporation renamed to Rocketstar Robotics Inc in 2006 |
| Andrews Space | |||
| EADS Astrium Satellites | |||
| Rocketstar Robotics Inc | Camarillo, CA | Space Interferometry Mission Optical Shutter Mechanisms | |
| Thortek Laboratories, Inc. | |||
| Starsys | merged with SpaceDev | ||
| SpaceDev |
Propulsion manufacturers
| Company name | Engine | Engine type | Comments |
|---|---|---|---|
| American Rocket Company | hybrid rocket | intellectual property acquired by SpaceDev | |
| Frontier Astronautics | VIPER | liquid oxygen | |
| Asp | high test peroxide | ||
| Orion Propulsion | used on Sundancer and Ares I | ||
| Ad Astra Rocket Company | VASIMR | magnetoplasma | may be used for future Mars missions |
| Reaction Engines Ltd. | SABRE | rocket/turbojet/ramjet | planned to be used in Skylon |
| SpaceDev | hybrid rocket | used on SpaceShipOne and SpaceShipTwo |
|
||||||||||||||||||||||||||||||||||||||||||||||
This entry is from Wikipedia, the leading user-contributed encyclopedia. It may not have been reviewed by professional editors (see full disclaimer)




