1. 3M Company
2. Airfoam Industries Ltd.
3. Auralex Acoustics Inc.
4. BASF SE
5. Covestro AG
6. dB Acoustics Pte Ltd.
7. Dow Inc.
8. DuPont de Nemours Inc.
9. Fletcher Building Limited
10. H.S. Engineers LLP
11. Henkel AG & Co. KGaA
12. Huntsman International LLC
13. Johns-Manville Corporation
14. Knauf Insulation GmbH
15. Kool Pack & Allied Industries Pvt. Ltd.
16. LyondellBasell Industries B.V.
17. Nissan Motor Co. Ltd.
18. Owens Corning
19. Primacoustic
20. Rockwool International A/S
21. Saint-Gobain Ecophon AB
22. Sika AG
23. TMI Products Inc.
24. Toray Industries Inc.
25. Ultimate Linings
LLC