- Mori Bldg. Ryutsu System Co., Ltd.
- VenusFort, Inc.
- Laforet Harajuku Co., Ltd.
- LAPNET Inc.
- Hills Club, Inc.
- Mori Hospitality Corporation
- Mori Building Investment Management Co., Ltd.
- Mori Building Real Estate Investment Advisory Co., Ltd.
- Mori Urban Planning Corporation
- Mori Building City Air Services Co., Ltd.
- M & I ART CO., LTD.
- Shishido Golf Club Co., Ltd.
- Mori Estate Service Company, Ltd.
- Laforet Engineering Company, Ltd.
- Akasaka Tameike Tower Management Co., Ltd.
- Roppongi First Building Co., Ltd.
- Roppongi Energy Service Co., Ltd.
- ARK Hills Heating & Cooling Supply Co., Ltd.
- eHills Corporation
- Prime Stage Co., Ltd.
- Shanghai World Financial Center Co., Ltd.
- Dalian Senmao Building Co., Ltd.
- Shanghai Senmao International Real Estate Co., Ltd.
- Mori Building China (Shanghai) Co., Ltd.
- Shanghai Hills Forum and City View Co., Ltd.
- Shanghai Hills Hotel Management Co., Ltd.
- Shanghai Lujiazui B.stem Real Estate Management Co., Ltd.
- MNTH Building Management Shanghai Co., Ltd.
