| RYER LIMITED | Private company limited by shares | Dissolved |
| RYER LIMITED | Private company limited by shares | Live |
| RYERSON OF CHINA LIMITED | Private company limited by shares | Dissolved |
| Ryerson China Investment Company Limited | Private company limited by shares | Dissolved |
| RYERSON CONSULTANTS LIMITED | Private company limited by shares | Live |
| RYERSON ENTERPRISE LIMITED | Private company limited by shares | Live |
| RYERSON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| RYERSON INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| Ryerson Management Limited | Private company limited by shares | Live |
| RYERSON INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |