GatherinVR by Queppelin - GatherInVR is a platform for VR meetings and VR conferences and can be customized for any business or company.
GitHub Polls - Polls for GitHub issues and readme
VeeR VR - Global VR video community
Octotree - Github on steroids
Spatial - Collaborate from anywhere in AR
Metaverse - Democratized augmented reality platform: AR for everyone!