● Optomec Inc. ● Stratasys Ltd ● HP Inc ● Arcam AB ● Hoganas AB ● Materialise ● EnvisionTEC Inc. ● Voxeljet AG ● General Electric Company ● GE Additive ● Protolabs ● Autodesk Inc ● Canon Inc. ● ExOne Company ● Organovo Holdings Inc ● SLM Solutions ● Eos GmbH ● 3D Systems