“RE:Vision Effects, Inc.”
“They offer pro features such as deinterlacing, denoisers, a tool to fill holes in masks, blurring filters, paint effects, and their award winning motion blur plug-in. “
“Zaxwerks, Inc”
Some of the original 3D expansion tools for After Effects. These plug-ins are very popular as they can greatly expand what you can do in After Effects.
AndrewDavidson
“Andrew offers a tool called AEFlame allowing you to create and animate cosmic recursive flame fractals. When a product like this is free, it’s good to have”
AvidionMedia
“This company offers Real3D, a plug-in for Adobe After Effects that allows you to bend, twist, and shatter layers in 3D space all while using the built in lighting and camera settings of After Effects”
Boris FX
Boris FX offers a ton of plug-ins for several applications
Cycore Systems
“Now natively used in After Effects, they offer a variety of plug-ins that are sure to become an integral part of your After Effects workflow”
Digieffects
“Digieffects offers a ton of great plug-ins to give your video more style such as FreeForm, Atmosphere, Aged Film, Falloff Lighting and more.”
Electrocolor
“A simple site offering fluid dynamic, autocut, and displacement tools for After Effects”
GenArts
“Looking for glows, light rays, lens flares, lightning, film damage, fire and fluid effects GenArts has you covered “
Main Concept
“Main Concept offers a ton of codecs to use for transcoding, muxing, streaming, and editing that every editor can use.”
Neat Video
“Neat Video is a video filter designed to reduce visible noise and grain in digital video sequences produced by digital video cameras, camcorders, TV-tuners, digitizers of film or analog video. “
Noise Industries
“With products like PHYX Cleaner, Stereo3D Toolbox, FotoMagico 3 Pro, FxFactory, and MagiMoto, they have some of the most sought after plug-ins on the market.”
Normality 3
Normality 3 is great plug-in for dealing with lighting in After Effects
Obvious FX
“A simple utility for After Effects that copies the current composition image to the System Clipboard, allowing easy pasting into other image applications”
Panopticum LLC
A set of plug-ins that expands what you can do in 3D in After Effects
Pixelan
“Offering more than 400 transition and effects, Pixelan can add needed magic to your next project.”
ProDad
“ProDad offers over 15,000 effects including a great stabilizing tool, a titling tool, and film filters and effects all at affordable prices. “
Red Giant Software
“Offering some of the most popular plug-ins for After Effects and Premiere Pro, Red Giant has grown their plug-in offerings into a formidable arsenal. They have products like Trapcode, Key Correct Pro, Magic Bullet, and more”
StageTools
Looking to create beautiful pan and scan images or high quality 3D graphs and charts? If so this is a great site to check out.
Synthetic Aperture
Advanced color correction tools for Adobe and Final Cut Pro
The Foundry
“The famous makers of such products as Keylight for After Effects, Mari painting tools for 3D, and Ocula for Nuke. These are products that have become an integral part of the programs their in and are worth checking out.”
Ultimatte Corporation
Great software for green and blue screen compositing.