1. 3M Company
2. BASF SE
3. Bostik S.A. by Arkema Group
4. Concrete Sealants Inc.
5. Fosroc Group
6. General Sealants Inc.
7. H.B. Fuller Company
8. Henkel AG & Co. KGaA
9. Hodgson Sealants Limited
10. Master Bond Inc.
11. Permatex by Illinois Tool Works Inc.
12. PPG Industries Inc.
13. Sika AG
14. The Dow Chemical Company
15. Tremco CPG Inc.