Technical Chamber of Greece    www.tee.gr
Federation of Greek Industries    www.sev.gr
Caterpillar                                        www.cat.com
Eltrak                                                 www.eltrak.gr
Ιtalcementi Group                           www.italcementigroup.com
Atlas copco                                      www.atlascopco.com
ΤΙΤΑΝ Group                                    www.titan.gr
Halyps                                               www.halyps.gr
Liebherr                                            www.liebherr.com
Mining Enterprises Association   www.sme.gr