The full corporate name, jurisdiction of incorporation and registered and beneficial ownership of the issued and outstanding shares of each direct and indirect Subsidiary is as follows:
| | | | |
Name of Subsidiary | | Jurisdiction of Incorporation | | Ownership of Securities |
| | |
| Mitel Networks Holdings Limited | | United Kingdom | | Wholly-owned by the Corporation |
| | |
| Mitel Networks Asia Pacific Limited | | Hong Kong | | Wholly-owned by the Corporation |
| | |
| Mitel U.S. Holdings, Inc. | | Delaware | | Wholly-owned by the Corporation |
| | |
| Mitel Comercio e Servicos do Brasil Ltda. | | Brazil | | Wholly-owned by the Corporation |
| | |
| Mitel South Pacific Pty. Limited | | Australia | | Wholly-owned by the Corporation |
| | |
| Mitel Networks (Manitoba) Inc. | | Canada | | Wholly-owned by the Corporation |
| | |
| Mitel Networks (BC) Inc. | | Canada | | Wholly-owned by the Corporation |
| | |
| Inter-Tel Lake Limited | | Ireland | | Wholly-owned by the Corporation |
| | |
| Mitel Networks (Mexico), S.A. de C.V. | | Mexico | | Wholly-owned by the Corporation |
| | |
| Tianchi Mitel Telecommunications Corp | | China | | 50% owned by the Corporation |
| | |
| Mitel (Delaware), Inc. | | Delaware | | Wholly-owned by Mitel U.S. Holdings, Inc., which is in turn wholly-owned by the Corporation |
| | |
| Swan Solutions Limited | | United Kingdom | | Wholly-owned by Mitel Networks, Inc., which is in turn wholly-owned by Mitel (Delaware), Inc., which is in turn wholly-owned by Mitel US Holdings, Inc. which is in turn wholly-owned by the Corporation |
| | |
| Inter-Tel Europe Limited | | United Kingdom | | Wholly-owned by Mitel Networks, Inc., which is in turn wholly-owned by Mitel (Delaware), Inc., which is in turn wholly-owned by Mitel US Holdings, Inc. which is in turn wholly-owned by the Corporation |
| | |
| Mitel Networks GmbH | | Germany | | Wholly-owned by Mitel Networks Limited, which is in turn wholly-owned by Mitel Networks Holdings Limited, which is in turn wholly-owned by the Corporation |
| | |
| Mitel Networks SARL | | France | | Wholly-owned by Mitel Networks Limited, which is in turn wholly-owned by Mitel Networks Holdings Limited, which is in turn wholly-owned by the Corporation |
| | |
| Mitel Financial Services Limited | | Europe | | 75% owned by Mitel Networks Limited, which is in turn wholly-owned by Mitel Networks Holdings Limited, which is in turn wholly-owned by the Corporation |
| | |
| Mitel Networks Limited | | United Kingdom | | Wholly-owned by Mitel Networks Holdings Limited, which is in turn wholly-owned by the Corporation |
| | |
| Mitel Netsolutions of Virginia, Inc. | | Virginia | | Wholly-owned by Mitel Netsolutions, Inc., which is in turn wholly-owned by Mitel (Delaware), Inc., which is in turn wholly-owned by Mitel U.S. Holdings, Inc., which is in turn wholly-owned by the Corporation |
| | |
| Mitel Networks, Inc. | | Delaware | | Wholly-owned by Mitel (Delaware), Inc., which is in turn wholly-owned by Mitel US Holdings, Inc. which is in turn wholly-owned by the Corporation |
| | |
| Mitel Netsolutions, Inc. | | Texas | | Wholly-owned by Mitel (Delaware), Inc., which is in turn wholly-owned by Mitel U.S. Holdings, Inc., which is in turn wholly-owned by the Corporation |
| | |
| Mitel Leasing, Inc. | | Arizona | | Wholly-owned by Mitel (Delaware), Inc., which is in turn wholly-owned by Mitel U.S. Holdings, Inc., which is in turn wholly-owned by the Corporation |
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| Mitel Business Systems, Inc. | | Arizona | | Wholly-owned by Mitel (Delaware), Inc., which is in turn wholly-owned by Mitel U.S. Holdings, Inc., which is in turn wholly-owned by the Corporation |
| | |
| Mitel Technologies, Inc. | | Arizona | | Wholly-owned by Mitel (Delaware), Inc., which is in turn wholly-owned by Mitel U.S. Holdings, Inc., which is in turn wholly-owned by the Corporation |
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| Inter-Tel Midwest, Inc. | | Delaware | | Wholly-owned by Mitel (Delaware), Inc., which is in turn wholly-owned by Mitel U.S. Holdings, Inc., which is in turn wholly-owned by the Corporation |
| | |
| Inter-Tel, Incorporated – New Jersey | | Delaware | | Wholly-owned by Mitel (Delaware), Inc., which is in turn wholly-owned by Mitel U.S. Holdings, Inc., which is in turn wholly-owned by the Corporation |
