EX-21.1 4 a2182917zex-21_1.htm EXHIBIT 21.1
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Exhibit 21.1

Subsidiaries of Align Technology, Inc.

        The registrant's principal subsidiaries as of December 31, 2007, are as follows:

    •
    Align Technology De Costa Rica, SRL, Costa Rica

    •
    Align Technology, B.V., The Netherlands

    •
    Align Technology Japan, Inc.



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