1. 3D Systems Inc
2. Arkema Sa
3. Autodesk Inc
4. Basf Se (Basf 3D Printing Solutions Gmbh)
5. Covestro Ag
6. Eos Gmbh Electro Optical Systems (Eos)
7. Evonik Industries Ag
8. Exone (Desktop Metal Inc)
9. Formlabs
10. Ge Additive
11. H?gan?s Ab
12. Hp Inc
13. Markforged
14. Materialise Nv
15. Optomec Inc
16. Organovo Holdings Inc
17. Renishaw Plc
18. Slm Solutions
19. Stratasys Ltd
20. Voxeljet Ag