Sunlu Filament is a well-known brand in the 3D printing industry. They offer various filament types, including PLA, ABS, PETG, TPU, and specialized filaments like silk, wood, and carbon fiber blends.
Some of the best filament companies in the industry include: Sunlu, Bambulab Filament, Prusament, Hatchbox, eSUN, Overture, MatterHackers, Polymaker, ColorFabb, Taulman3D, Atomic Filament, 3D Jake, Proto-pasta, Fillamentum, Fiberlogy.