CAOS runs the secretariat of Europengineers, a close network of leading European consulting engineering companies.

Our work involves organising the annual general assembly and other board meetings throughout the year, as well as theme meetings, working groups and special forums for young professionals. In the past, among other activities, CAOS has arranged for managers to meet and discuss efficiency and sustainability, for technicians to meet and discuss airports and waste management, for data specialists to discuss the way of collecting, validating and sharing big data, and for young professionals to meet and visit the 2012 Olympics site in London, the new motor-tunnel and surrounding re-urbanisation in Madrid and the new harbour development in Hamburg.