RigModels.com - Free 3D Search Engine. Explore & download 3d models for free. Rig & Animate static models easily.
CGTrader - CGTrader is an online marketplace at which artists can sell and buy Revit and 3D models.
3DExport - 3DExport is a 3D model marketplace where you can buy and sell 3D models, CG textures and digital objects for 3D printing with royalty free. Professional 3D models - 3DExport.com
Free3d - Free3d (previously TF3DM)
TurboSquid - TurboSquid offers 3D models for professionals.
3Dmdb - 3Dmdb is a search engine-based hub of multiple three-dimensional colorful objects which can be downloaded, purchased, and rendered from shops or marketplaces.