Proto Labs, Inc., together with its subsidiaries, operates as an e-commerce driven digital manufacturer of custom prototypes and on-demand production parts in the worldwide. The company offers injection molding; computer numerical control machining; three-dimensional (3D) printing, which include stereolithography, selective laser sintering, direct metal laser sintering, multi jet fusion, polyjet, and carbon DLS processes; and sheet metal fabrication products, including quick-turn and e-commerce-enabled custom sheet metal parts. It serves developers and engineers, who use 3D computer-aided design software to design products across a range of end markets. The company was incorporated in 1999 and is headquartered in Maple Plain, Minnesota.