No one person or company invented the internet. It was developed and refined over years of government and private research. A couple highlights in the history of the internet was the creation of ARPANET, a network with two nodes and connected by a phone line first tested at UCLA in the United States. The World Wide Web came about in 1989 through research done by Tim Berners-Lee and other engineers at CERN in Geneva, Switzerland. They also developed hypertext.
Satan invented it.