Anarchy Sound Software
VST 2.0 plugins: AnarchyEffects, AnarchyRhythms and SwarmSynth. Audio samples, demos, purchasing.
http://www.hypnotoad.co.uk/anarchy/

Anwida Soft
VST Plug-ins for Mac and PC. Company profile, products catalog, download and support area.
http://www.anwida.com/

Nomad Factory
Plug-ins for Cubase, Nuendo, Logic audio, Peak, Deck, sonicWORX, Spark and MOTU.
http://www.nomadfactory.com

VST Central
Searchable list with all the free VST and DirectX plugins for PC and Mac.
http://www.vstcentral.com/

DSP-FX Virtual Pack
Effects processing, including the DSP·FX high efficiency plug-ins and Power Technology hardware products.
http://www.dspfx.com

GogoL
Audio enhancement plugin for media players like Winamp, Sonique.
http://gogol.victorovich.com

iZotope Inc.
Free and commercial plug-ins for restoring analog feel to digital sound. Relive the grainy sound of old vinyl, the warmth of analog bass.
http://www.izotope.com

Kelly Industries
PanHandler Surround Sound plug-ins for Adobe Premiere, Cubase VST, Cool Edit Pro, SAWPro and DirectX.
http://www.kellyindustries.com/index.html

PSP Professional Sound Projects
Audio processors and sound effects plug-ins in VST, DirectX, MAS, TDM, RTAS format.
http://www.pspaudioware.com/

T-RackS 24
Pro Tools plug-in for audio mastering.
http://www.t-racks.com/

Wave Arts
Plug-ins such as reverb and surround, for Mac and PC. Demos available.
http://www.wavearts.com/

Waves Ltd.
Audio signal processing for professional audio and multimedia markets. Product description, screenshots, support area, purchasing information.
http://www.waves.com/

SFX Machine RT Effects
Audio multi-effects plug-in with many presets, available in VST and Audio Unit formats for Windows and Macintosh.
http://sfxmachine.com/

ConcreteFX
[Win] Company that develops some VST effects: screenshots, main features, demos and audio samples.
http://www.concretefx.com/Effects.htm

ProSounds
VST, DX and AudioUnit audio plugin instruments patches, presets and sounds.
http://www.pro-sounds.net

Formulator Vocoder Plug-ins
Pitch-augmentation, sympathetic drones, voice disguisers, robot voices and talking instruments.
http://www.vocoder-plugins.com/

Voxengo
VSTs include CurveEQ, Tempo Delay, Tube Amp, Stereo Touch, and MarvelEQ.
http://www.voxengo.com/

FX Freeze
Control and optimize CPU usage while working with VST instruments or effects. Screenshots, forum, support area.
http://www.fxfreeze.com/

Sonic Timeworks
Features several effects compatible with DirectX, RTAS and Pulsar-Scope. Description, screenshots, demos, updates, purchasing information.
http://www.sonictimeworks.com/

FXpansion.com
Convert and share effect plug-ins of different formats between audio sequencers and sound libraries.
http://www.fxpansion.com/

Drumagog
Plug-in which automatically replaces acoustic drum tracks. Includes reviews, downloads and features overview.
http://www.drumagog.com/

Thelotron Technologies
Developer of the BeatModel T1 Plug-in Pack DirectX audio processing plug-ins.
http://www.thelotron.com/

Silverspike
Includes R2, TapeIt, Reverb.it, RubyTube. Free and commercial VST plug-ins.
http://www.silverspike.com

ApulSoft - WormHole
[Mac - Win] It allows to transmit streaming audio between two computers over the TCP/IP protocol. Features, downloadable demo, purchasing information.
http://www.apulsoft.ch/wormhole/index.php

Wusik
Featuring Wusikstation VSTi, a sample based virtual instrument for Windows VST hosts. Demo, forum, MP3 examples.
http://www.wusik.com/

Sonoma Wire Works
Sonoma 7 VST effects plug-in, a set of seven optimized effects. Downloadable demo.
http://www.sonomawireworks.com

Nay-seven
Vst MIDI controller for the Korg ES-1. Offers a tuner for each pad, channel change, and editable labels for each controller.
http://nay-seven.com/Kergos-util_en.htm

6-BC
A Stereo 6 Band VST compressor plug-in from DyVision Works Software.
http://www.dyvision.co.uk/6bc.htm

URS - Unique Recording Software Inc.
Classic console equalizers for Pro Tools MBox, Digi001, Digi002, MIX, HD and HD Accel - TDM, RTAS and Audiosuite.
http://www.ursplugins.com

Ohm Force
Audio effects and software synthesisers for PC and Mac. Product information, downloadable demos, on-line store.
http://www.ohmforce.com

DSOUND
For guitarists and sound engineers, turns PC or Mac into multi-effect processors. Works as EXE or VST/AU plug-ins.
http://www.dsound1.com

Golden Aset
Pads, textures, soundscapes, and atmospherics. VST, VSTi.
http://www.artvera-music.com

Super Destroy FX
Free plug-ins for both Audio Unit and VST standard protocols. Feature descriptions, screenshots and download area.
http://destroyfx.smartelectronix.com/

discoDSP
VST plug-ins company. Develops Discovery, Vertigo, Phantom and HighLife. Audio samples, downloadable demos and user community.
http://www.discodsp.com/

Lok and Load Plug-Ins Manager
Works with Pro Tools to speed loading and apply plug-in configurations. By About Right Ltd.
http://lok.seeker.co.nz

Trifex
Creators of PhatBuzz: A mastering-plugin for enhancing bass frequencies after limiting-stage without clipping.
http://www.trifex.de

VB-audio.com
[Win] Featuring several VST effects. Description, samples, downloadable demos.
http://pagesperso-orange.fr/vb-audio/