Adobe After Effects - Motion graphics and visual effects toolset .
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
RedGiant Effects Suite - Video Effects
Natron - Natron is a piece of software designed for compositing purposes, and it is entirely free and open source. The software is node-based, which makes it easy to use and customize. Read more about Natron.
Effekseer - Effekseer is a tool that allows easy creation of beautiful particle effects for games and movies.
Motion Project - Motion is a highly configurable program that monitors video signals from many types of cameras.