I regularly work with Dream Corp, a team of 5 people with great skills in real-time rendering and graphics programming, to create unique VR experiences for the audience of big events..
Here is MLB, a project we did in 2015. The tracking system is a proprietary technology developped by the team, the rendering is powered by Unreal Engine 4.
Experimentation date: March 2016 / Main software: Unreal 4
Residence is a set of tests and experiments we are doing to build a VR experience using electric engines driven by what the user is living.
Event date: May 2015 / Main software: Unreal 4
Link: http://stelloprod.com/portfolio/marlboro-fuse-experience/ (password: mlbfuse)
Event date: March 2015 / Main software: Unreal 4
Event date: Mid 2014 / Main software: Unity 4
Event date: Begining of 2014 / Main software: Unity 4