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Exhibit 21.1

SUBSIDIARIES OF THE REGISTRANT

All of the Company’s subsidiaries listed below are wholly owned.

Name						Jurisdiction of Incorporation or Organization
PL-US International LLC						United States
Hubs Manufacturing Inc.						United States
3D Hubs Manufacturing LLC						United States
Proto Labs Ltd.						United Kingdom
PL International Holdings, UK, Ltd.						United Kingdom
PL Euro Services Limited						United Kingdom
Proto Labs GmbH						Germany
Proto Labs Tooling GmbH						Germany
3D Hubs B.V.						Netherlands