| OKATHERM
MyZeil SHOPPING-CENTER
| OKALUX
KSB AG
| OKASOLAR S
Clinics Miltenberg-Erlenbach GmbH
| OKALUX+ / OKASOLAR W
Sports Hall at the "Europakanal"
| OKALUX
Friedrich Ischebeck GmbH
| KAPILUX W
Technical University Dresden
| OKAWOOD
Branch Bank Delmenhorst - Landessparkasse zu Oldenburg
| OKAWOOD