As of October 14, 2025
| Company's Name | Address | TEL |
|---|---|---|
| Hokkaido Hitachi Systems, Ltd. | 3-11 Odori-nishi, Chuo-ku, Sapporo-shi, Hokkaido 060-0042 |
+81 11 281 7311 |
| Kyushu Hitachi Systems, Ltd. | 2-12-22 Hakataeki-minami, Hakata-ku, Fukuoka-shi, Fukuoka 812-0016 |
+81 92 434 9291 |
| Hitachi Systems Engineering Services, Ltd. | 2-2-1 Minatomirai, Nishi-ku, Yokohama-shi, Kanagawa 220-8132 |
+81 45 228 4141 |
| Hitachi Systems Field Services, Ltd. | 6-27-18 Minamioi, Shinagawa-ku, Tokyo 140-0013 |
+81 3 5621 2920 |
| Hitachi Systems Power Services, Ltd. | 1-2-3 Shibaura, Minato-ku, Tokyo 105-0023 |
+81 3 6757 1111 |
| Company's Name | Address | TEL |
|---|---|---|
| Hitachi Systems Trusted Cyber Management Inc. | 2535 Augustine Drive, 2nd Floor, Santa Clara, CA 95054 |
+1 650 934 1108 |
| Cumulus Systems Private Ltd. | 502, S. R. IRIZ Baner-Pashan Link Road, Pashan Pune 411021, India |
+91 20 46770619 |
| Hitachi Systems Security Inc. | 955 Michèle-Bohec Blvd., Suite 244, Blainville (Québec) J7C 5J6, Canada | +1 450 430 8166 |
| Hitachi Systems Security Europe SA | Technopôle 5, 3960 Sierre, Switzerland | +41 27 455 00 22 |
| Hitachi Sunway Information Systems Sdn. Bhd. | Level 11-03 & 11-04, The Pinnacle Sunway Persiaran Lagoon, Bandar Sunway 47500 Selangor Darul Ehsan Malaysia |
+603 5639 9911 |
| Hitachi Sunway Information Systems (Singapore), Pte. Ltd. | 16 Raffles Quay #09-01 Hong Leong Building Singapore 048581 |
+65 8221 7508 |
| Hitachi Sunway Information Systems (Thailand), Ltd. | 62, Thaniya Bldg. 7th Floor Room 702-708 and 710 Silom Rd., Suriyawong, Bangrak Bangkok 10500 Thailand |
+66 2079 1814 |
| PT. Hitachi Sunway Information Systems Indonesia | Wisma Korindo, 4th Floor Jl. MT. Haryono Kav. 62 Pancoran, Jakarta Selatan 12780, Indonesia |
+6221 7918 6020 |
| Hitachi Sunway Data Centre Services Sdn. Bhd. | Level 11-03 & 11-04, The Pinnacle Sunway Persiaran Lagoon, Bandar Sunway 47500 Selangor Darul Ehsan Malaysia |
+603 5639 9911 |
| Hitachi Systems India Pvt. Ltd. | 04th Floor, Tower 10 B, DLF Cyber City, Phase 3, Sector 24, Gurugram, Haryana - 122002 | +91 0124 4694450 |
| Hitachi Systems Network Technologies, Pte. Ltd. | 150 Kampong Ampat KA Centre, #05-02 Singapore 368324 |
+65 6844 1678 |
