The Logic Foundry
- Beta versions of TLF Flame and TLF Bump procedural shaders for use with Caligari trueSpace version 4.2 or later.
- http://members.ozemail.com.au/~snewnham/

u|v trueSpace eXtension page
- Site offers plugins and shaders for Truespace, as well as a gallery.
- http://tsx.uvworx.com/

MenteMagica
- Offers high-end Truespace plug-ins like "ThermoClay", "DreaMotion", and the cloth simulator "DynaCloth".
- http://www.mentemagica.com/

Lightning Software
- Offers Truespace plug-ins like "FrameSlider" and "WaveGenerator" for creating waves, and ripples.
- http://www.kinneret.co.il/lgsoft/

FXRealm Studios
- Offers "Creature Creator", a Truespace extension for creating humanoids, aliens, monsters, and bugs.
- http://www.fxrealm.com/products/creaturecreator/tsdesc.htm

Bendy's 3D Systems
- Various Truespace plug-ins, filters and shaders like "Blur'n'Feather", "MetaObjects", and "Roundit".
- http://www.bendys.com/