1. 3M Company
2. Asahi Kasei Corporation
3. Cole-Parmer Instrument Company
LLC
4. Corning Life Sciences
5. Danaher Corporation
6. DuPont de Nemours Inc.
7. GL Sciences Inc.
8. GVS S.p.A.
9. Membrane Solutions LLC
10. Merck KGaA
11. Purilogics
LLC by Donaldson Company Inc.
12. Regis Technologies Inc.
13. Restek Corporation
14. Sartorius AG
15. Thermo Fisher Scientific Inc.