| Supplier | Country | Shipments |
|---|---|---|
| Zollner Elektronik Ag | Germany | 295 |
| Carl Zeiss Industrielle Messtechnik | Germany | 234 |
| Hennig Systems Gmbh | Germany | 169 |
| Carl Zeiss Jena Gmbh | Germany | 129 |
| Walter Koenig Gmbh | Germany | 85 |
| Test Rite International Co Ltd | China | 85 |
| Haweka Ag | Germany | 79 |
| Wenzhou Dongtian Glasses Manufactur | China | 65 |
| Wenzhou Horizon Optical Co Ltd | China | 50 |
| Robert Bosch Gmbh Andreas Schmid | Germany | 49 |