Major white rice color sorter manufacturers include global leaders like Bühler (Sortex), Satake, and major Chinese brands like Meyer, Taiho, AMD (Zhongke), and Wesort, offering advanced optical sorting with CCD/AI cameras to remove defects (discolored grains, stones, foreign materials) for premium quality rice processing. These companies provide machines for various needs, from small processors to large industrial operations, focusing on accuracy and efficiency.