Virtalis

Virtalis has developed several vr and 3D solutions, some of which you may be familiar with:

 PTC DIVISION Mockup
Product design mock-up tool

 Virtools
Engineering design review and visualization tool. (see my blog on the topic)

 WorldViz
3D development toolkit

 VR4Max
3D semi vr viewer of non-CAD design files

 Lattice 3D
3D development toolkit. Example, develop 3D assembly manual

 Cubicspace - RTRE
Interior and architectural visualization application.

 DDD - Dynamic Digital Depth
Autostereo for 3D visualization without glasses.

Summary worksheet: http://www.virtalis.com/images/stories/products/pdf/VR%20software%20matrix.pdf