1. 3D Hubs B.V.
2. 3D Systems Inc.
3. Beamler BV
4. Beckatt Solutions
LLC
5. BigRep GmbH
6. ExOne Company
7. Formlabs Inc.
8. General Electric Company
9. HP Development Company
L.P.
10. Lithoz GmbH
11. Materialise NV
12. Proto Labs Inc.
13. Renishaw PLC
14. Stratasys
Ltd.
15. Tethon3D
16. TriMed Group
17. Ultimaker BV
18. Voxeljet AG
19. WASP c/o CSP S.r.l.