• Mitsui Fudosan Residential Co., Ltd.
• Mitsui Real Estate Sales Co., Ltd.
• Mitsui Home Co., Ltd.
• MITSUI Designtec Co., Ltd.
• Mitsui Home Remodeling Co., Ltd.
• Mitsui Home Estate Co., Ltd.
• Mitsui Fudosan Housing Service Co., Ltd.
• Mitsui Fudosan Housing Service Kansai Co., Ltd.
• MF Housing Service Hokkaido Co., Ltd.
• MF Housing Service Tohoku Co., Ltd.
• MF Housing Service Chugoku Co., Ltd.
• MF HOUSING SERVICE KYUSYU Co., Ltd.
• Mitsui Fudosan Housing Lease Co., Ltd.
• Uniliving Co., Ltd.
• Daiichi Engei Co., Ltd.

• Mitsui Fudosan Building Management Co., Ltd.
• First Facilities Co., Ltd.
• First Facilities West Co., Ltd.
• Nippon Building Fund Management Ltd.
• NBF Office Management Co., Ltd.

• LaLaport management Co., Ltd.
• Mitsui Fudosan Frontier REIT Management Inc.
• Frontier REIT SC Management Co., Ltd.

• Mitsui Fudosan Hotel Management Co., Ltd.
• Celestine Hotel Co., Ltd.
• Mitsui Fudosan Housing Lease Co., Ltd.
• Mitsui Fudosan Accommodations Fund Management.

• Mitsui Fudosan Investment Advisors, Inc.

• Kyusin Kaihatsu Inc.
• Mitsui Fudosan Resort Co.,Ltd
• LA TOURS,INC.

• Mitsui Fudosan America, Inc.
• Mitsui Fudosan (U.K.) Ltd.
• Halekulani Corporation
• TID Pte. Ltd.

• Tokyo Midtown Management Co., Ltd.
• Mitsui Fudosan Architectural Engineering Co., Ltd.
• Daiichi Engei Co., Ltd.
• Cany Corporation
• LA TOURS,INC.

• Mitsui Interbusiness Research Institute.
• The Mitsui Public Relations Committee
• Mitsui Bunko