| ADL Insulflex | 12-13 |
| Aeroquip | 10-11 |
| Beltservice | 14-15 |
| Brennan | 12-13 |
| Chiorino | 14-15 |
| Fenner Dunlop | 14-15 |
| Habasit | 14-15 |
| IDC Select | 12-13 |
| Klinger Thermoseal | 14-15 |
| Kuriyama | 16-17 |
| Penflex | 18-19 |
| Salem-Republic Rubber Company | 18-19 |
| Teadit | 18-19 |
| Thermoid | 18-19 |
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