1. Collagen Matrix Inc
2. Connoils Llc
3. Darling Ingredients Inc
4. Dsm
5. Gelita
6. Integra Lifesciences
7. Italgel
8. Jellagen
9. Lapi Gelatine
10. Nippi Inc
11. Nitta Gelatin
12. Stryker
13. Symatese
14. Tessenderlo
15. Weishardt