1. 3M Company
2. AMETEK Inc.
3. AR UK Ltd.
4. Cabot Corporation
5. ETS-Lindgren Inc. by ESCO Technologies Inc.
6. Fischer Custom Communications Inc.
7. Henkel AG & Co. KGaA
8. Heraeus Holding GmbH
9. Holland Shielding Systems B.V.
10. Integrated Polymer Solutions
11. Kemtron Ltd. by TE Connectivity
12. Keysight Technologies Inc.
13. KITAGAWA INDUSTRIES CO. LTD. by Nitto Kogyo Corporation
14. Laird Technologies Inc. by DuPont de Nemours Inc.
15. Leader Tech Inc.
16. Omega Shielding Products
17. Parker-Hannifin Corporation
18. PPG Industries Inc.
19. Pulse Power & Measurement Ltd. by BAE Systems PLC
20. Rohde & Schwarz GmbH & Co. KG
21. RTP Company by Miller Waste Mills Inc.
22. Schaffner Holding AG
23. Spira Manufacturing Corporation
24. Tech Etch Inc.
25. T?V Rheinland AG