Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Xara 3D Maker - Xara 3D Maker transforms any kind of text, graphic or photo into a 3D logo automatically. You don't need any previous experience to produce professional results.
Autodesk 3DS Max - 3ds Max is software for 3D modeling, animation, rendering, and visualization. Create stunning game enrivonments, design visualizations, and virtual reality experiences.
K-3D - K-3D is free-as-in-freedom 3D modeling and animation software.
ZBrush - ZBrush is a digital sculpting and painting software solution.
Prezi - Welcome to Prezi, the presentation software that uses motion, zoom, and spatial relationships to bring your ideas to life and make you a great presenter.