eSUN 6KG Bulk PLA+ Filament, 6 Spool Pack (1KG/Spool) Pro-Grade High Toughness PLA Plus 3D Printer Filament, Dimensional Accuracy +/-, Black+White+Grey+BoneWhite+PineGreen+FireEngineRed

Founded in 2002, eSUN compounds polymer in-house and supplies raw material to a number of white-label brands. Their own catalog covers PLA through high-temperature engineering grades — one of the broadest material ranges from a single manufacturer.