| Company Name | Type | Status |
|---|---|---|
| SUGIYAMA ELECTRON HONG KONG COMPANY LIMITED | Private company limited by shares | Dissolved |
| SUGIYAMA HEAVY INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| HONG KONG SUGIYAMA CO., LIMITED | Private company limited by shares | Live |
| HONG KONG SUGIYAMA CO., LIMITED | Live | |
| SUGIYAMA HONG KONG LIMITED | Private company limited by shares | Dissolved |
| SUGIYAMA INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Japan Sugiyama Clinic Company Limited | Private company limited by shares | Live |