1. AFC-Holcroft
2. AICHELIN Holding GmbH
3. Airtec Thermoprocess GmbH by Meier Group
4. Andritz AG
5. ASC Process Systems
6. AVS Inc.
7. CAN-ENG Furnaces International Ltd.
8. Carbolite Gero Ltd.
9. Davron Technologies Inc.
10. Eastman Manufacturing Ltd.
11. Electro Heat Sweden AB
12. Gasbarre Products Inc.
13. Harper International
14. Heatron
15. Inductotherm Corp.
16. ITW EAE by Illinois Tool Works Inc.
17. JPW Ovens & Furnaces
18. Lenton Furnaces & Ovens
19. Primetals Technologies Limited
20. Tenova S.p.A.
21. The Grieve Corporation
22. Wisconsin Oven Corporation