1. Basf SE
2. BAUCOMEX CZ
s.r.o.
3. Compagnie de Saint-Gobain S.A.
4. CSR Limited
5. GAF Materials LLC
6. Kingspan Group PLC
7. Knauf Insulation GmbH
8. L’Isolante K-Flex S.p.A.
9. Lloyd Insulations (India) Limited
10. Owens Corning Corporation
11. Recticel SA
12. Rockwool International A/S
13. U.P. Twiga Fiberglass Limited
14. Unifrax Corporation
15. Uralita SA