| Company Code | Company Name | Details |
| 1997 |
AKATSUKI EAZIMA CO., LTD. |
Construction | TSE2(STANDARD) | Ibaraki | Official Site |
| 3077 |
Horii Food Service |
Retail | TSE2(STANDARD) | Ibaraki | Official Site |
| 3191 |
Joyful Honda Co., Ltd. |
Retail | TSE1(PRIME) | Ibaraki | Official Site |
| 3495 |
Koryojyuhan Co.,LTD. |
Real Estate | TSE2(STANDARD) | Ibaraki | Official Site |
| 3539 |
JM Holdings Co., Ltd. |
Retail | TSE1(PRIME) | Ibaraki | Official Site |
| 5759 |
Nippon Denkai, Ltd. |
Nonferrous Metals | TSE GROWTH | Ibaraki | Official Site |
| 6227 |
AIMECHATEC, Ltd. |
Machinery | TSE2(STANDARD) | Ibaraki | Official Site |
| 7167 |
Mebuki Financial Group, Inc. |
Banks | TSE1(PRIME) | Ibaraki | Official Site |
| 7445 |
Right-on Co., Ltd. |
Retail | TSE2(STANDARD) | Ibaraki | Official Site |
| 7711 |
SUKEGAWA ELECTRIC CO., LTD. |
Precision Instruments | TSE2(STANDARD) | Ibaraki | Official Site |
| 7779 |
Cyberdyne Inc. |
Precision Instruments | TSE GROWTH | Ibaraki | Official Site |
| 7986 |
Nihon ISK Co., Ltd. |
Other Manufacturing Sectors | TSE2(STANDARD) | Ibaraki | Official Site |
| 8282 |
K'S HOLDINGS CORPORATION |
Retail | TSE1(PRIME) | Ibaraki | Official Site |
| 8338 |
Tsukuba Bank, Ltd. |
Banks | TSE1(PRIME) | Ibaraki | Official Site |