Mark Richard Shuttleworth is a South African entrepreneur, philanthropist, and space tourist who is the founder of Ubuntu Linux and Canonical Ltd. He is known as the first South African in space. In the 1990s, Shuttleworth participated as one of the developers of the Debian operating system.
Mark founded Thawte, a company specialising in digital certificates and cryptography. When Thawte was acquired in 1999 by VeriSign, and he founded HBD, an investment company, and setup the Shuttleworth Foundation, which funds innovative change in society by supporting Fellows and investing in their projects.