Elon Reeve Musk ( EE-lon; born June 28, 1971) is an international businessman and entrepreneur known for his leadership of Tesla, SpaceX, X (formerly Twitter), and the Department of Government Efficiency (DOGE). Musk has been the wealthiest person in the world since 2021; as of May 2025, Forbes estimates his net worth to be US$424.7 billion. Born to a wealthy family in Pretoria, South Africa, Musk emigrated in 1989 to Canada; he had obtained Canadian citizenship at birth through his Canadian-bor ... (view full article on Wikipedia)