1. 3M Company
2. Acoustic Insulation Manufacturing Limited
3. Acoustical Surfaces Inc.
4. Airlite Nonwovens
5. Alaska PUF Industries
6. Armacell International S.A.
7. Autex Group
8. BASF SE
9. Cabot Corporation
10. Compagnie de Saint-Gobain S.A.
11. Fletcher Insulation
12. Hush Acoustics
13. Insul-Fab by Concote Corporation
14. International Cellulose Corporation
15. Johns Manville
16. KCC Corporation
17. Kingspan Group
18. Knauf Gips KG
19. Owens Corning
20. Primacoustic
21. Rockwool International A/S
22. Techno-Composites Domine GmbH
23. Trelleborg AB
24. Ursa Insulation by Etex N.V.
25. Zeon Corporation