1. Abbott Furnace Company
2. Byron Products
3. Can-Eng Furnaces International Ltd.
4. Carbolite Gero Ltd.
5. Charles A. Hones Inc.
6. Consolidated Engineering Company
7. Delta H Technologies
LLC
8. Grieve Corporation
9. HeatTek Inc.
10. HighTemp Furnaces Ltd.
11. Houston Heat Treat
12. Ipsen International GmbH
13. JTEKT Thermo Systems Co. Ltd.
14. Keith Company
15. L&L Special Furnace Co. Inc.
16. Lindberg/MPH
17. Lucifer Furnaces Inc.
18. Pyradia Inc.
19. Seco/Warwick S.A.
20. Solo Swiss S.A.
21. Stork Technical Services Holding B.V. by Fluor Corporation
22. Surface Combustion Inc.
23. Therelek
24. Thermcraft by Aeco Corporation
25. Zhengzhou Brother Furnace Co. Ltd.