Synthogy is a Massachusetts based audio software company founded by George Taylor and Joe Ierardi, former engineers of Kurzweil Music Systems. Together they bring more than 35 years of design experience in synthesizers, musical instruments, effects, and sound design to the field of Virtual Instruments.

Music Sotware Developper, for windows and mac (RealGuitar)

Offers several music related programs for the Macintosh, including Audiocorder, Sound Byte, and MacDSP.

Developper of INetSynth, a virtual synthesizer for mac and pc

NUSofting produces high-quality audio software for the Windows and Mac OS X platform. VST, AU and DirectX plug-ins.

Developer of audio plug-ins for Mac OS X and Windows

SFX Machine is an award-winning Premiere-format multi-effects and modular synthesis plug-in for the Macintosh. It is now available directly from its creator, The Sound Guy, at a special low introductory price.

Sonic Charge : developper of MicroTonic, a VSTi percussion synthesizer for windows and Mac OS X

SpinAudio Software is a company that develops audio signal processing plugins and supplementary tools for a computer based audio production that can range from music creation to multimedia and film/video post-production. They specialize in delay effects, Virtual Room Acoustics Modeling, 3D Positional Audio and real-time Spectral effects.

Sounds Online is a division of EastWest, a company specialized in sound libraries development and distribution. High quality virtual instruments and sound libraries editor.