- Instrument Systems Optische Messtechnik GmbH
- Address:Neumarkter Str. 83
- GretagMacbeth GmbH
- Address:Fraunhoferstrasse 14
- fischer analytics GmbH
- Address:Saarlandstrasse 62-66
- Biocen GmbH
- Address:Friedenstrasse 14
- fischer analytics OHG
- Address:Saarlandstrasse 62-66
- Wacon GmbH
- Address:Eduard-Ahlborn-Str. 1
- ART PHOTONICS GMBH
- Address:Rudower Chaussee 46
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