1. Almaco, USA.
2. A T I Inc, USA.
3. Black Machine Planters,
USA
4. CNH Global N.V., USA.
5. Dawn, USA.
6. John Deere, USA
7. Flexi Coil, USA
8. Great Plains Mfg Inc,
USA.
9. Houck Inter-Seeder,
USA.
10. K-C Mfg Inc, USA.
11. Kincaid Equipment,
USA.
12. Kinze Mfg Inc., USA.
13. Kuhn Farm Machinery Inc.,
USA
14. Landoll Corporation,
USA.
15. Monosem, USA.
16. Powell Manufacturing Company Inc,
USA.
17. Schlagel Manufacturing Inc,
USA.
18. Starco Manufacturing Inc,
USA.
19. Tricorp, USA.
20. Tru Count Inc, USA.
21. White Planters, USA