Align Technology, Inc., DynaFlex, Dentsply Sirona, Inc., SmileDirectClub, Straumann Group, Danaher, Henry Schein, Inc., Great Lakes Dental Technologies, 3M, Argen Corporation, Illusion Aligners, Tianjin ZhengLi Technology Company Limited, Candid Care Co., Klear Aligner, Scheu Dental, TP Orthodontics, Inc., K-Line Europe, and Rocky Mountain Orthodontics are the major players.