The link between project schedule and cost with the project’s final outcome was until recently the companies’ main issue for successful managing. However the need for an emphasis in other features of the projects has been recognized. This thesis is a research for the current status of the Greek manufacturing companies’ project quality system. Through interviews and a questionnaire identifies the focus of the project quality system and its effect on project management processes and the quality of the project’s outcome. Finally the data derived from this research are analyzed and recommendations concerning the focus of companies’ future efforts, in respect with a Total Quality Management system, are being offered.