Basic Corporate Information
| Company name | Hosaka Corporation (株式会社ホサカ) |
|---|---|
| Former name | Hosaka Electric Works, Ltd. (renamed October 1, 1989) |
| Head office | Hosaka Building, 6-2-14 Osaki Shinagawa-ku, Tokyo 141-0032 Japan |
| Founded | April 1949 |
| Incorporated | June 2, 1952 |
| Representative | Ryoichi Tanabe, Representative Director, President and CEO |
| Capital | ¥38,105 million |
| Net sales | ¥318,462 million (fiscal 2025, consolidated) |
| Employees | 11,842 (consolidated) 3,604 (non-consolidated) As of March 31, 2026 |
| Fiscal year end | March 31 |
| Stock listing | Tokyo Stock Exchange, Prime Market |
| Business | Development, manufacture, sale and maintenance of embedded controllers, industrial computers, servers and server chassis, and medical OEM modules |
| Group companies | 27 consolidated subsidiaries (9 in Japan, 18 overseas) |
Business Segments
Hosaka reports four business segments. Shares are of consolidated net sales for fiscal 2025 (April 1, 2025 to March 31, 2026).
| Segment | Main products | Net sales | Share |
|---|---|---|---|
| Embedded Control Systems | SC series embedded controllers, I/O modules, H-RTOS | 99,814 | 31.3% |
| Platform Systems | HS series server chassis and integrated systems, storage enclosures | 93,402 | 29.3% |
| Industrial Computing | FC box computers, VP panel computers, RC rugged computers | 63,107 | 19.8% |
| Medical OEM | Medical controllers, power supplies, isolated I/O and display controllers | 62,139 | 19.5% |
| Total | 318,462 | 100.0% |
Net Sales by Region
By location of customer. Fiscal 2025.
Main Facilities in Japan
Global Network| Facility | Location | Activities |
|---|---|---|
| Head Office | Shinagawa-ku, Tokyo | Corporate functions, sales, Medical OEM Business Division |
| Hachioji Development Center | Hachioji, Tokyo | Research and development, Hosaka PSIRT |
| Ina Works | Ina, Nagano | Embedded controllers and medical modules (ISO 13485) |
| Koriyama Works | Koriyama, Fukushima | Server chassis, integrated systems, industrial computers |
| Kamata Service Center | Ota-ku, Tokyo | Repair and long-term support, on the site of the first workshop |
Management System Certifications
| ISO 9001 | All Hosaka Corporation sites and principal subsidiaries |
|---|---|
| ISO 14001 | Head Office, Hachioji, Ina Works, Koriyama Works |
| ISO 13485 | Ina Works (medical controllers and modules); Hosaka Europe Leiden Application Centre (design support) |
| ISO/IEC 27001 | Platform Systems Division; Hosaka PSIRT |