1. Arabian Fiberglass Insulation Co Limited
2. Armacell Group
3. Aspen Aerogels Inc.
4. Big Sky Insulations Inc.
5. Bradford by CSR Limited
6. Covestro AG
7. EcoFoil by Clickstop Inc.
8. Fletcher Building Group
9. Gilsulate International Inc.
10. GlassRock Insulation Co.
11. H.B. Fuller Company
12. Huntsman Corporation
13. Isover by Compagnie de Saint-Gobain S.A.
14. Johns Manville by Berkshire Hathaway Company
15. Kingspan Group plc
16. Klassegroup
17. Knauf Insulation Inc.
18. L’ISOLANTE K-FLEX S.p.A.
19. Lindner Group
20. Owens Corning Corporation
21. Paroc Group Oy
22. PPG Industries Inc.
23. Promat by Etex Group
24. Rockwool A/S
25. Sam Products Pvt. Ltd.
26. Sekisui Foam Australia
27. Thermaflex International
28. Unifrax I LLC
29. Union Foam SpA
30. Ursa Insulation SA