| Company Code | Company Name | |
| 1885 |
TOA CORPORATION |
Construction | TSE1, SSE (Sapporo) | Tokyo | Official Site |
| 1888 |
Wakachiku Kensetsu |
Construction | TSE1 | Tokyo | Official Site |
| 1890 |
TOYO CONSTRUCTION CO., LTD. |
Construction | TSE1, OSE1 | Tokyo | Official Site |
| 1893 |
Penta-Ocean Construction Co., Ltd. |
Construction | TSE1, NSE1 | Tokyo | Official Site |
| 1896 |
OBAYASHI ROAD CORPORATION |
Construction | TSE1 | Tokyo | Official Site |
| 1898 |
Seikitokyukogyo |
Construction | TSE1 | Tokyo | Official Site |
| 1899 |
Fukuda Corporation |
Construction | TSE1 | Niigata | Official Site |
| 1911 |
Sumitomo Forestry Co., Ltd. |
Construction | TSE1, OSE1 | Tokyo | Official Site |
| 1914 |
JAPAN FOUNDATION ENGINEERING CO., LTD. |
Construction | TSE1, OSE1 | Osaka | Official Site |
| 1916 |
Nissei Build Cogyo Co., Ltd. |
Construction | TSE1 | Ishikawa | Official Site |
| 1919 |
SxL Co., Ltd. |
Construction | TSE1 | Osaka | Official Site |
| 1921 |
TOMOE Corporation |
Construction | TSE1, SSE (Sapporo) | Tokyo | Official Site |
| 1924 |
Pana Home |
Construction | TSE1, OSE1 | Osaka | Official Site |
| 1925 |
DAIWA HOUSE INDUSTRY CO., LTD. |
Construction | TSE1, OSE1 | Osaka | Official Site |
| 1926 |
RAITO KOGYO CO., LTD. |
Construction | TSE1 | Tokyo | Official Site |
| 1928 |
Sekisui House, Ltd. |
Construction | TSE1, OSE1, NSE1 | Osaka | Official Site |
| 1929 |
Nittoc Construction Co., Ltd. |
Construction | TSE1 | Tokyo | Official Site |
| 1930 |
HOKURIKU ELECTRICAL CONSTRUCTION CO., LTD. |
Construction | TSE1 | Toyama | Official Site |
| 1934 |
Yurtec Co., Inc. |
Construction | TSE1 | Miyagi | Official Site |
| 1937 |
Seibu Electric Industry Co., Ltd. |
Construction | TSE1, OSE1, FSE (Fukuoka) | Fukuoka | Official Site |