EXHIBIT 21.1
LIST OF SUBSIDIARIES OF ASPEN TECHNOLOGY, INC.
Name of Subsidiary |
| State or Country | ||
1. |
| AspenTech Argentina S.R.L. |
| Argentina |
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2. |
| Aspen Technology Australia Pty. Ltd. |
| Australia |
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3. |
| AspenTech Europe S.A./N.V. |
| Belgium |
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4. |
| Aspen Technology WLL |
| Bahrain |
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5. |
| AspenTech Software Brazil Ltda. |
| Brazil |
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6. |
| AspenTech Canada Ltd. |
| Canada |
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7. |
| AspenTech Asia, Ltd. |
| Hong Kong |
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8. |
| Aspen Tech India Pte. Ltd. |
| India |
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9. |
| Aspen Technology S.r.l. |
| Italy |
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10. |
| AspenTech Japan Co. Ltd. |
| Japan |
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11. |
| AspenTech Solutions Sdn. Bhd. |
| Malaysia |
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12. |
| Aspen Tech de Mexico, S. de R.L. de C.V. |
| Mexico |
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13. |
| AspenTech Europe B.V. |
| Netherlands |
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14. |
| AspenTech (Beijing) Co., Ltd. |
| PRC |
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15. |
| AspenTech (Shanghai) Co., Ltd. |
| PRC |
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16. |
| Aspen Technology LLC |
| Russia |
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17. |
| AspenTech Pte. Ltd. |
| Singapore |
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18. |
| AspenTech Africa (Pty.) Ltd. |
| South Africa |
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19. |
| Aspen Technology S.L. |
| Spain |
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20. |
| AspenTech (Thailand) Ltd. |
| Thailand |
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21. |
| AspenTech Ltd. |
| UK |
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22. |
| Hyprotech UK Ltd. |
| UK |
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23. |
| Aspen Technology (Asia), Inc. |
| USA |
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24. |
| Aspen Technology International, Inc. |
| USA |
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25. |
| Aspen Technology Services Corporation |
| USA |
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26. |
| AspenTech Software Corporation |
| USA |
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27. |
| AspenTech Venezuela, C.A. |
| Venezuela |