Volksbank Ruhr Mitte eG

                                                                                                                                Hertener Stadtwerke GmbH
                                                                                                                              
                                                                                Roche Pharma AG

Sparkasse Vest Recklinghausen

                                                                                                                                       
                                                                                                                          

                                                                                              Stiftung Würdevolles Leben, Herne



                                                Hermann-Schäfers-Stiftung, Herten

AGR, Essen


                                       Deutsche Bank, Recklinghausen


                                                                                                     RheinLand Versicherungen