Paul Allen, Elan Musk, Richard Branson, Jeff Bezos, the Ansari family, which is now funding the Russians' sub-orbital thing, Bob Bigelow, a private space station, and Carmack.
Paul Allen, Elan Musk, Richard Branson, Jeff Bezos, a familia Ansari — que está neste momento a financiar  o projecto sub-orbital dos russos — Bob Bigelow, uma estação  espacial privada, e Carmack.