Profile
Hyo Kambayashi is currently Chairman at Japan Internal Control Research Association since 2016, Chairman at Protiviti LLC since 2016, and Independent Outside Director at SUMCO Corp.
starting in 2026.
Formerly, Mr. Kambayashi was an Independent Outside Director at Murata Manufacturing Co. Ltd.
Hyo Kambayashi active positions
| Companies | Position | Start |
|---|---|---|
| SUMCO CORPORATION | Director/Board Member | 2026-02-28 |
Japan Internal Control Research Association | Chairman | 2016-09-30 |
Protiviti LLC
Protiviti LLC Miscellaneous Commercial ServicesCommercial Services Provides independent risk consulting and internal audit services | Chairman | 2010-12-31 |
Former positions of Hyo Kambayashi
| Companies | Position | End |
|---|---|---|
| MURATA MANUFACTURING CO., LTD. | Director/Board Member | - |
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
1st degree connections
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 4 |
|---|---|
Murata Manufacturing Co. Ltd.
Murata Manufacturing Co. Ltd. Electronic Production EquipmentElectronic Technology Manufactures and wholesales electronic components | Electronic Technology |
SUMCO Corp.
SUMCO Corp. Industrial MachineryProducer Manufacturing Manufactures and markets silicon wafers for semiconductors | Producer Manufacturing |
Japan Internal Control Research Association | |
Protiviti LLC
Protiviti LLC Miscellaneous Commercial ServicesCommercial Services Provides independent risk consulting and internal audit services | Commercial Services |
- Stock Market
- Insiders
- Hyo Kambayashi
















