1. Auer Signal GmbH
2. Banner Engineering Corp.
3. DOMO s.r.l.
4. Eaton Corporation plc
5. ECCO SAFETY GROUP
6. Emerson Electric Co.
7. European Safety Systems Limited
8. Federal Signal Corporation
9. HELLA GmbH & Co. KGaA
10. Honeywell International Inc.
11. Hongkong Koon Technology Limited
12. Mircom Technologies Ltd.
13. Nanhua Electronics Co. Ltd.
14. Ningbo Joiwo Explosionproof Science & Technology Co. Ltd.
15. Patlite Corporation
16. Pepperl+Fuchs SE
17. Potter Electric Signal Company
LLC
18. Qlight Co. Ltd.
19. Rockwell Automation Inc.
20. Schneider Electric SE
21. Siemens AG
22. SIRENA S.p.a.
23. TOMAR Electronics Inc.
24. WERMA Signaltechnik GmbH + Co. KG