1. Amol Dicalite Limited
2. Armacell International Holding GmbH
3. Aspen Aerogels
4. BASF SE
5. Cabot Corporation
6. Dunmore Corporation
7. G+H Group
8. Imerys S.A.
9. Isover by Saint-Gobain
10. Johns Manville Inc.
11. Lydall Inc.
12. NICHIAS Corporation
13. Owens Corning
14. R?chling SE & Co. KG
15. ZIRCAR Ceramics