| 太平洋興発株式会社 Taiheiyo Kouhatsu Inc. | 6th Floor, MATAI BLDG., 2-6-7, Motoasakusa, Taito-ku, Tokyo, 111-0041 TEL:+81-3-5830-1601 | Sales of condominiums, rental and management of condominiums and buildings, non-life insurance agency, purchasing and selling of coal and petroleum, transportation of coal, miscellaneous goods, etc. by ship. |
| 新太平洋商事株式会社 Shin Taiheiyo Company,Limited | 3-18, Shirito-cho, Kushiro-shi, Hokkaido, 085-0844 TEL:+81-154-41-9155 | Warehouse business. Runs the restaurant "Kushiroko" https://kushirokou.jp/ |
| 株式会社太平洋製作所 Taiheiyo Seisakusho Co., Ltd. | 7-4-1, Kurogane-cho, Kushiro-shi, Hokkaido, 085-0018 TEL:+81-154-65-1025 | Manufacture and repair of various machines and electrical equipment. |
| 株式会社エイチ・シー・シー HCC Co., Ltd. | 8-2-10, Harutori, Kushiro-shi, Hokkaido, 085-0813 TEL:+81-154-46-5311 | Data Processing. |
| 訓子府石灰工業株式会社 Kunneppu Sekkai Kogyo Co., Ltd. | 86 Omachi, Kunneppu-cho, Tokoro-gun, Hokkaido, 099-1436 TEL:+81-157-47-2101 | Manufacture and sale of fertilizer, slaked lime, and stone powder. |
| 太平洋運輸株式会社 Taiheiyo Unyu Co., Ltd. | 3-7-22, Kaizuka, Kushiro-shi, Hokkaido, 085-0816 TEL:+81-154-41-4471 | Vehicle transportation of general cargo and coal. |
| 株式会社太平洋シルバーサービス Taiheiyo Silver Service Co., Ltd. | 2-8-19, Kyonan-cho, Musashino-shi, Tokyo, 180-0023 TEL:+81-422-34-1636 | Operation of paid nursing home. |
| 株式会社太平洋シルバーサービス北海道 Taiheiyo Silver Service Hokkaido Co., Ltd. | 7-5-1, Harutori, Kushiro-shi, Hokkaido, 085-0813 TEL:+81-154-46-8811 | Operation of paid nursing home. |
| 株式会社太平洋トータルシステム Taiheiyo Total System Co., Ltd. | 3-47-12, Musa, Kushiro-shi, Hokkaido, 085-0806 TEL:+81-154-46-7220 | Operation of golf driving range. |
| 株式会社栄和サービス Eiwa Service Co., Ltd. | 3-18, Shirito-cho, Kushiro-shi, Hokkaido, 085-0807 TEL:+81-154-42-8640 | Industrial waste disposal business, landscaping and greening business. |
| 太平洋フーズ株式会社 Taiheiyo Foods Co., Ltd. | TRN Shinjuku Building B2, 3-28-15 Shinjuku, Shinjuku-ku, Tokyo TEL:+81-3-6457-7688 | Management of restaurants. |
