Key facts
- Mark Cuban invested $500,000 in Relativity Space after receiving a cold email.
- Cuban has since invested several million dollars into the company.
- Relativity Space is now valued at approximately $4 billion.
- The company aims to compete with SpaceX by 3D-printing most of its rockets.
- Former Google CEO Eric Schmidt took over as CEO in March 2025, making a significant investment.
- Relativity has amassed over $2.9 billion in orders from clients including NASA and the U.S. Space Force.
Mark Cuban recounted how he invested $500,000 in Relativity Space, a rocket company founded by Tim Ellis, a former Blue Origin intern, after receiving a cold email. Cuban admitted he had no expertise in space but decided to fund the venture. He has since invested several million dollars, and the company is now valued at $4 billion. Relativity Space specializes in 3D-printing rockets to reduce costs and production time, positioning itself as a competitor to SpaceX. Following cash-flow challenges, former Google CEO Eric Schmidt took over as CEO in March 2025, making a significant investment and securing a controlling interest, while Ellis remains on the board. The company has secured over $2.9 billion in orders from major clients.