In May 2012, the International Space Station's robotic claw, the Canadarm2, caught and secured the first commercial spacecraft to ever dock with the ISS: SpaceX's Dragon capsule. The bullet-shaped vehicle flew to the ISS carrying cargo for its crew, making history for the private space sector in the process. SpaceX has grown leaps and bounds since then, signing contracts with NASA and other government agencies and developing more advanced technologies for space travel. It's even in the midst of designing Dragon version 2, which, unlike its unmanned predecessor, will be able to fit up to seven passengers. While Elon Musk's company is the most well-known commercial spaceflight firm today, it's hardly the only one. The private space industry is huge and it continues to grow; read on to know more about it.