Adobe Dimension - Create high-quality, photorealistic images with the 3D tool made for graphic designers.
RenderMan - Advanced Technology from Pixar Animation Studios for Rendering VFX and Animation
LuxCoreRender - LuxCoreRender is a physically based and unbiased rendering engine.
Cycles Renderer - Cycles is Blender’s ray-trace based production render engine and in development since 2011.
appleseed - appleseed is an open source, physically-based global illumination rendering engine primarily designed for animation and visual effects.
Octane Render - Octane Render is the world's first GPU based, un-biased, physically based renderer.