| Name | Type | Sector | Country | Joined On |
|---|---|---|---|---|
| DAI-DAN CO., LTD. | Company | Construction & Materials | Japan | 2019-07-05 |
| Earth-Signal Inc. | Small or Medium-sized Enterprise | Construction & Materials | Japan | 2019-06-27 |
| KAJIMA CORPORATION | Company | Construction & Materials | Japan | 2019-03-07 |
| SHIN NIPPON AIR TECHNOLOGIES CO.,LTD | Company | Construction & Materials | Japan | 2019-01-22 |
| COMANY INC. | Company | Construction & Materials | Japan | 2018-08-15 |
| Sekisui House, Ltd. | Company | Construction & Materials | Japan | 2018-08-15 |
| Takasago Thermal Engineering Co., Ltd. | Company | Construction & Materials | Japan | 2018-06-29 |
| Constec Holding Co., Ltd. | Small or Medium-sized Enterprise | Construction & Materials | Japan | 2018-04-10 |
| Daiwa House Industry Co., Ltd. | Company | Construction & Materials | Japan | 2018-04-10 |
| TAISEI CORPORATION | Company | Construction & Materials | Japan | 2018-04-01 |
| SHINRYO CORPORATION | Company | Construction & Materials | Japan | 2014-10-07 |
| Obayashi Corporation | Company | Construction & Materials | Japan | 2013-08-16 |