Exhibit 21
QUANTUM CORPORATION
SUBSIDIARIES OF THE REGISTRANT
| 1 | A.C.N. 120.786.012 Pty. Ltd., an Australian company | |
| 2 | Advanced Digital Information Corporation, a Washington Corporation | |
| 3 | Certance (US) Holdings, Inc., a Delaware corporation | |
| 4 | Certance Holdings Corporation, a Delaware corporation | |
| 5 | Certance LLC, a Delaware limited liability company | |
| 6 | Pancetera Software Inc., a Delaware corporation | |
| 7 | Quantum Beteiligungs GmbH, a German corporation | |
| 8 | Quantum Boehmenkirch GmbH & Co. KG, a German corporation | |
| 9 | Quantum Engineering Australia Pty. Ltd., an Australian company | |
| 10 | Quantum GmbH, a German corporation | |
| 11 | Quantum India Development Center Private Ltd., an Indian company | |
| 12 | Quantum International Inc., a Delaware corporation | |
| 13 | Quantum Korea Co. Ltd., a Korean corporation | |
| 14 | Quantum Peripherals (Europe) SARL, a Swiss corporation | |
| 15 | Quantum SARL, a French corporation | |
| 16 | Quantum Storage Australia Pty. Ltd., an Australian corporation | |
| 17 | Quantum Storage GmbH, a Swiss corporation | |
| 18 | Quantum Storage Japan Corporation, a Japanese corporation | |
| 19 | Quantum Storage Singapore Pte. Ltd., a Singapore private company | |
| 20 | Quantum Storage UK Ltd., a United Kingdom corporation |