GEE GmbH - Manufacturer of electrical and electronical devices in the fields of media control, network and optical fibre engineering, building control and security technology. - http://www.gee-gmbh.de/
aufa GmbH - Produces bicycle lighting components such as generators, halogen headlamps and tail lamps. - http://www.aufa.de/
Emitec GmbH - Manufacturer of metal catalyst carriers. Overview of the company and its products with contact information. - http://emitec.de/