Sumitomo Group
Sumitomo Pharma
Sumitomo Life
Mitsui Sumitomo Insurance
Sumitomo Trust and Banking
Sumitomo Corporation
Sumitomo Electric Industries
Sumitomo Chemical
Sumitomo Corporation of America
Sumitomo Rubber Industries
Sumitomo Forestry
Sumitomo Mitsui Construction
Sumitomo Mitsui Banking Corporation
Sumitomo Realty & Development
Sumitomo Metal Mining
Sumitomo Warehouse
Sumitomo Densetsu
Sumitomo Light Metal Industries
Sumitomo Osaka Cement
Sumitomo Bakelite
Sumitomo Heavy Industries
Sumitomo Metal Industries
Sumitomo Mitsui Financial Group
Крекінг-установка у Тіба (Sumitomo)