Avid Technology
Provides information on all-digital solutions for capturing, creating, editing and distributing digital media. Avid products are used to produce films, television programs, special effects, broadcast news, and audio recordings.
http://www.avid.com/

IZware
Technology tools for the creation of 3D content for game development including Mirai, Nendo and N-World.
http://www.izware.com/

StageTools
MovingPicture is a tool for performing smooth pans and zooms on hi-res stills. It is available as a standalone app or plug-in for most popular nonlinear editing systems on Mac and Windows.
http://www.stagetools.com/

Hammerhead Productions Software
Creators of ras_trak 3D camera tracking software and roto motion-blurred rotoscoping software.
http://www.hammerhead.com/software.html

Project: messiah
Advanced character animation plugin for Lightwave 3D
http://www.projectmessiah.com

Motion Capture by Metamotion
Easy to use and cost effective motion capture hardware and software.
http://www.motion-capture.net/motion-capture/motion-capture.html

Soluciones Gráficas por Ordenador (SGO)
Developers of software for digital production and post production including Jaleo, Natural Tools, Maya, and Toon Boom. View site in English or Spanish.
http://www.sgo.es/

TimeBrush Studios
Makers of BlackMagic photo colorization software for Windows. Also provides motion picture and video colorization services.
http://www.timebrush.com/

Vizrt
Viz-fx enables VFX productions composites of CGI and film on location in real-time, and provides post production with both camera and event animation data.
http://viz-fx.com/

Pixar - Renderman
Information on the toolkit, software packages, pricing and compatible products.
http://www.pixar.com/renderman/

Visual Appliance
Makers of Hype, Hype for Shake and Hype Batch, the fully automatic lens distortion measurement and compensation system.
http://www.visualappliance.com

Special Film Effects using Spatio-Temporal Volumes
This site contains papers and information relating to the development and use of spatio-temporal volume processing software to generate novel special effects for use in film and other visual media.
http://www.magardner.co.uk