Lightflow
- Fast and stable multithreaded renderer, created by Jacopo Pantaleoni.
- http://www.lightflowtech.com/products.html

Lightscape
- Application for lighting design and rendering by simulating the true physical properties of light and materials, created by Autodesk.
- http://www.discreet.com/support/lightscape/index.html

Mental Ray
- Photorealistic ray tracing and scanline rendering package created by Mental Images.
- http://www.discreet.com/products/mentalray/

VirtuaLight
- Allows previewing and photorealistic rendering of 3D scenes, created by Stéphane Marty. free and commercial
- http://www.3dvirtualight.com/

finalRender
- Featuring full global illumination, advanced raytracing and subsurface light scattering support, created by cebas.
- http://www.finalrender.com/

Entropy
- High-quality rendering system based partially on the popular BMRT package, created by Exluna.
- http://www.exluna.com/products/entropy/index.html

Brazil r/s
- The Brazil Rendering System created by SplutterFish is a new advanced rendering system developed within a production environment to meet the requirements of professional artists.
- http://www.splutterfish.com/sf/