Credo Interactive Inc.
Life Forms software is by far the most powerful character-animation package.
Animeeple is an easy to use character animation tool.
Calibrate your Perception Neuron system and perform basic motion capture.
Development in Motion
BVHViewer is a robust visualization tool for the Biovision Hierarchy formats.
bvhacker is great for viewing, analysing and preparing of bvh files.
3D modeling, rendering & animation suite.