Competitors
More than twenty organizations submitted COTS proposals in March 2006 of which twenty were publicly disclosed. NASA received new COTS proposals from at least seven firms by November 21, 2007.
| Company | Spacecraft | Launch vehicle | Partner | First round participant |
First round semi-finalist |
Second round participant |
Won round |
|---|---|---|---|---|---|---|---|
| Orbital Sciences | Cygnus | Antares | ? | No | Yes | Yes | |
| SpaceX | Dragon | Falcon 9 | Yes | Yes | Yes | Yes | |
| Andrews Space | Andrews Cargo Module | Hercules | Alliant Techsystems, MDA | Yes | Yes | Yes | No |
| Boeing | Automated Transfer Vehicle | Delta IV | Arianespace, EADS Astrium | ? | No | Yes | No |
| PlanetSpace | Orbital Transfer Vehicle | Athena III | Alliant Techsystems, Lockheed Martin | No | No | Yes | No |
| SpaceHab | ARCTUS | Atlas V | Lockheed Martin | Yes | Yes | Yes | No |
| Rocketplane Kistler | K-1 | K-1 | Orbital Sciences | Yes | Yes | No | No |
| Venturer Aerospace | S-550 Space capsule | Falcon 9 | SpaceX | Yes | No | No | No |
| SpaceDev | Dream Chaser | Atlas V | Lockheed Martin | Yes | Yes | ? | No |
| t/Space | Crew Transfer Vehicle | QuickReach | AirLaunch | Yes | Yes | ? | No |
| Constellation Services International | Progress | Soyuz | RKK Energia | ? | No | ? | No |
| Lockheed Martin | ATV, H-II Transfer Vehicle | Atlas V | EADS Astrium, JAXA | ? | No | ? | No |
| PanAero | Space Van | Space Van | ? | No | ? | No | |
| Space Systems/Loral | Space Tug | Aquarius Launch Vehicle | Constellation Services International | ? | No | ? | No |
| Advent Launch Services | ? | ? | ? | No | ? | No | |
| Exploration Partners | ? | ? | ? | No | ? | No | |
| Odyssey Space Research | ? | ? | ? | No | ? | No | |
| Thortek Laboratories | ? | ? | ? | No | ? | No | |
| Triton Systems | ? | ? | ? | No | ? | No |
Read more about this topic: Commercial Orbital Transportation Services