1. 3D Systems Inc.
2. 3DCeram
3. Autodesk Inc.
4. Canon Inc.
5. Dassault Syst?mes SE
6. Desktop Metal Inc.
7. General Electric Company
8. HP Development Company
L.P.
9. Materialise N.V.
10. Nano Dimension Ltd.
11. Proto Labs Inc.
12. SISMA S.p.A.
13. Stratasys Ltd.
14. Ultimaker B.V.
15. Voxeljet AG