Virtual reality is not a propriety invention. Just like there is no one entity that makes stereos. It is a type of technology that many manufacturers create. There are a few companies that take part in the manufacturing of VR at the moment. Sony make the PSVR, HTC make the Vive and Oculus make the Rift. There are also many other headsets that work for mobile devices. There is more info in the vr gaming section of the site.