Proto Labs' GAAP net income for 2021 was $33.372 million, down 34.4% from $50.867 million in the previous year. Revenue increased 12.4% to $488.098 million from $434.395 million a year earlier.
Proto Labs' GAAP net income for 2021 was $33.372 million, down 34.4% from $50.867 million in the previous year. Revenue increased 12.4% to $488.098 million from $434.395 million a year earlier. 
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