All Duo Group of companies are part of the PICS Consortium ISOQAR/UKAS certification refers to Duo Manufacturing.

ISO 9001.- The quality management certificate demonstrating our compliance with proven international business practices and appropriate standards to ensure a consistant commitment to proving a high level of customer satisfaction.

ISO 14001. The environmental management certificate for taking responsibility for the commercial performance and environmental impacts of the Duo Group of companies.

ISO 18001. The health and safety management certificate demonstrating Duo Group's commitment to looking after the wellbeing of our employees and reducing workplace accidents.