== Konglomerat-struktur ==
Nuværende virksomheder i Mitsui-familien inkluderer [[Mitsui & Co.]], [[Sumitomo Mitsui Trust Holdings]], [[Japan Steel Works]], [[Mitsui Chemicals]], Mitsui Construction Co., Mitsui Engineering and Shipbuilding, [[Mitsui Fudosan]], Mitsui-gold, [[Mitsui Mining & Smelting Co.]], [[Mitsui Oil Exploration Co.]] (MOECO), [[Mitsui O.S.K. Lines]], Mitsui Petrochemical Industries, Mitsui-Soko, [[Mitsui Sumitomo Insurance Group]], [[Oji Paper Company]], Pacific Coast Recycling, [[Sumitomo Mitsui Banking Corporation]], [[Taiheiyo Cement]], [[Toray Industries]], Tri-net Logistics Management, Mitsui Commodity Risk Management [MCRM].
Organisationer