1990 - 1991 Ray Cumbo,
Servequip Ltd,
UK
1992 - 1998 Bart van der Kruijs,
PB International,
The Netherlands
1998 - 2000 Herwig Niggemann, Werner Niggemann GmbH,
Germany
2000 - 2002

Steve Snow,

Mecserflex Ltd / MCS Ltd,
UK
 
2002- 2004 Phil Nicolaidis Domestica SA,
Greece