NASA partner

When the first human being set foot on the moon in 1969, only national governments had the resources to go into space because it takes a lot of money, innovation, talent, work. But that isn't the situation today. 

Multiple companies are forming to do business in space. NASA, the National Aeronautics and Space Administration (an agency of the U.S. Government), supports the trend:

"A robust and competitive commercial space sector is vital to continued progress in space. The United States is committed to encouraging and facilitating the growth of a U.S. commercial space sector . . . "

Instead of building their own rockets, NASA is now a client of companies that build rockets. They specify what they need and share information, but people who work at companies like SpaceX are the ones who build them. 

Here are Elon Musk and Jim Bridenstine (former head of NASA) in 2020 discussing their partnership. Bridenstine says that SpaceX has something NASA has been lacking, a "willingness to fail." He says they "fly, test, fail, fix" - repeatedly. (To get to the good stuff, start at about 2:40.)