Elon Reeve Musk (/ˈiːlɒn ˈmʌsk/; born June 28, 1971) is a South African-born American business magnate, investor, engineer, and inventor. He is the founder, CEO, and CTO of SpaceX; a co-founder, Series A investor, CEO, and product architect of Tesla Inc.; co-chairman of OpenAI; founder and CEO of Neuralink, and founder of The Boring Company (2016). Musk is also a co-founder and former chairman of SolarCity, co-founder of Zip2, and founder of X.com, which merged with Confinity and took the name PayPal.
As of October 2017, Musk has an estimated net worth of $20.8 billion, ranking in the 2017 Forbes 400 as the 21st wealthiest person in America. In March 2016, he was listed by Forbes as the 80th-wealthiest person in the world. In December 2016, Musk was ranked 21st on the Forbes list of The World's Most Powerful People.
Musk has stated that the goals of SolarCity, Tesla, and SpaceX revolve around his vision to change the world and humanity. His goals include reducing global warming through sustainable energy production and consumption, and reducing the "risk of human extinction" by "making life multiplanetary" by establishing a human colony on Mars.