- CALEX - UK
- EMA - CHINA
- MASS - INDIA
- PIL - GERMANY
- BECK - GERMANY
- INELTA - GERMANY
- ASTECH - GERMANY
- WAYCON - GERMANY
- ECOSENSE - GERMANY
- MICROSONIC - GERMANY
- HANSFORD - UK
- PRODUAL - FINLAND
- MESAN - TURKEY
- MUCCO - TURKEY
- PROSENSE - TURKEY
- FANTINI COSMI - ITALY
- RHEONICS - SWITZERLAND
- EVIKON - ESTONIA
- HK INSTRUMENTS - FINLAND
- E+E ELEKTRONIK - AUSTRIA