DDN, with over 30 years of experience, develops Integrated Construction Project Management services and Implementation of Technological Solutions, Supervision, Procurement, Safety and Environment Coordination, Contract Management, Project Review, as well as Strategic Consulting in real estate analysis.

It is certified in Quality by the ISO 9001 standard, in Environment by the ISO 14001 standard, qualified by LNEC as General Quality Manager and accepted in the Qualification System of Fiscalization of Águas de Portugal, EDP and ANA Aeroports of Portugal.

It also has more than 75 of its project managers certified by IPMA – International Project Management Association.